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build: move e2e dependencies into e2e/go.mod

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Several packages are only used while running the e2e suite. These
packages are less important to update, as the they can not influence the
final executable that is part of the Ceph-CSI container-image.

By moving these dependencies out of the main Ceph-CSI go.mod, it is
easier to identify if a reported CVE affects Ceph-CSI, or only the
testing (like most of the Kubernetes CVEs).

Signed-off-by: Niels de Vos <ndevos@ibm.com>
This commit is contained in:
Niels de Vos
2025-03-04 08:57:28 +01:00
committed by mergify[bot]
parent 15da101b1b
commit bec6090996
8047 changed files with 1407827 additions and 3453 deletions
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202
e2e/vendor/google.golang.org/genproto/googleapis/api/LICENSE generated vendored Normal file
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@ -0,0 +1,202 @@
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119
e2e/vendor/google.golang.org/genproto/googleapis/api/annotations/annotations.pb.go generated vendored Normal file
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// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.24.4
// source: google/api/annotations.proto
package annotations
import (
reflect "reflect"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
descriptorpb "google.golang.org/protobuf/types/descriptorpb"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
var file_google_api_annotations_proto_extTypes = []protoimpl.ExtensionInfo{
{
ExtendedType: (*descriptorpb.MethodOptions)(nil),
ExtensionType: (*HttpRule)(nil),
Field: 72295728,
Name: "google.api.http",
Tag: "bytes,72295728,opt,name=http",
Filename: "google/api/annotations.proto",
},
}
// Extension fields to descriptorpb.MethodOptions.
var (
// See `HttpRule`.
//
// optional google.api.HttpRule http = 72295728;
E_Http = &file_google_api_annotations_proto_extTypes[0]
)
var File_google_api_annotations_proto protoreflect.FileDescriptor
var file_google_api_annotations_proto_rawDesc = []byte{
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0x69, 0x2f, 0x61, 0x6e, 0x6e, 0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x3b, 0x61, 0x6e,
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}
var file_google_api_annotations_proto_goTypes = []interface{}{
(*descriptorpb.MethodOptions)(nil), // 0: google.protobuf.MethodOptions
(*HttpRule)(nil), // 1: google.api.HttpRule
}
var file_google_api_annotations_proto_depIdxs = []int32{
0, // 0: google.api.http:extendee -> google.protobuf.MethodOptions
1, // 1: google.api.http:type_name -> google.api.HttpRule
2, // [2:2] is the sub-list for method output_type
2, // [2:2] is the sub-list for method input_type
1, // [1:2] is the sub-list for extension type_name
0, // [0:1] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
}
func init() { file_google_api_annotations_proto_init() }
func file_google_api_annotations_proto_init() {
if File_google_api_annotations_proto != nil {
return
}
file_google_api_http_proto_init()
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_api_annotations_proto_rawDesc,
NumEnums: 0,
NumMessages: 0,
NumExtensions: 1,
NumServices: 0,
},
GoTypes: file_google_api_annotations_proto_goTypes,
DependencyIndexes: file_google_api_annotations_proto_depIdxs,
ExtensionInfos: file_google_api_annotations_proto_extTypes,
}.Build()
File_google_api_annotations_proto = out.File
file_google_api_annotations_proto_rawDesc = nil
file_google_api_annotations_proto_goTypes = nil
file_google_api_annotations_proto_depIdxs = nil
}

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// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.24.4
// source: google/api/field_behavior.proto
package annotations
import (
reflect "reflect"
sync "sync"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
descriptorpb "google.golang.org/protobuf/types/descriptorpb"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// An indicator of the behavior of a given field (for example, that a field
// is required in requests, or given as output but ignored as input).
// This **does not** change the behavior in protocol buffers itself; it only
// denotes the behavior and may affect how API tooling handles the field.
//
// Note: This enum **may** receive new values in the future.
type FieldBehavior int32
const (
// Conventional default for enums. Do not use this.
FieldBehavior_FIELD_BEHAVIOR_UNSPECIFIED FieldBehavior = 0
// Specifically denotes a field as optional.
// While all fields in protocol buffers are optional, this may be specified
// for emphasis if appropriate.
FieldBehavior_OPTIONAL FieldBehavior = 1
// Denotes a field as required.
// This indicates that the field **must** be provided as part of the request,
// and failure to do so will cause an error (usually `INVALID_ARGUMENT`).
FieldBehavior_REQUIRED FieldBehavior = 2
// Denotes a field as output only.
// This indicates that the field is provided in responses, but including the
// field in a request does nothing (the server *must* ignore it and
// *must not* throw an error as a result of the field's presence).
FieldBehavior_OUTPUT_ONLY FieldBehavior = 3
// Denotes a field as input only.
// This indicates that the field is provided in requests, and the
// corresponding field is not included in output.
FieldBehavior_INPUT_ONLY FieldBehavior = 4
// Denotes a field as immutable.
// This indicates that the field may be set once in a request to create a
// resource, but may not be changed thereafter.
FieldBehavior_IMMUTABLE FieldBehavior = 5
// Denotes that a (repeated) field is an unordered list.
// This indicates that the service may provide the elements of the list
// in any arbitrary order, rather than the order the user originally
// provided. Additionally, the list's order may or may not be stable.
FieldBehavior_UNORDERED_LIST FieldBehavior = 6
// Denotes that this field returns a non-empty default value if not set.
// This indicates that if the user provides the empty value in a request,
// a non-empty value will be returned. The user will not be aware of what
// non-empty value to expect.
FieldBehavior_NON_EMPTY_DEFAULT FieldBehavior = 7
// Denotes that the field in a resource (a message annotated with
// google.api.resource) is used in the resource name to uniquely identify the
// resource. For AIP-compliant APIs, this should only be applied to the
// `name` field on the resource.
//
// This behavior should not be applied to references to other resources within
// the message.
//
// The identifier field of resources often have different field behavior
// depending on the request it is embedded in (e.g. for Create methods name
// is optional and unused, while for Update methods it is required). Instead
// of method-specific annotations, only `IDENTIFIER` is required.
FieldBehavior_IDENTIFIER FieldBehavior = 8
)
// Enum value maps for FieldBehavior.
var (
FieldBehavior_name = map[int32]string{
0: "FIELD_BEHAVIOR_UNSPECIFIED",
1: "OPTIONAL",
2: "REQUIRED",
3: "OUTPUT_ONLY",
4: "INPUT_ONLY",
5: "IMMUTABLE",
6: "UNORDERED_LIST",
7: "NON_EMPTY_DEFAULT",
8: "IDENTIFIER",
}
FieldBehavior_value = map[string]int32{
"FIELD_BEHAVIOR_UNSPECIFIED": 0,
"OPTIONAL": 1,
"REQUIRED": 2,
"OUTPUT_ONLY": 3,
"INPUT_ONLY": 4,
"IMMUTABLE": 5,
"UNORDERED_LIST": 6,
"NON_EMPTY_DEFAULT": 7,
"IDENTIFIER": 8,
}
)
func (x FieldBehavior) Enum() *FieldBehavior {
p := new(FieldBehavior)
*p = x
return p
}
func (x FieldBehavior) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (FieldBehavior) Descriptor() protoreflect.EnumDescriptor {
return file_google_api_field_behavior_proto_enumTypes[0].Descriptor()
}
func (FieldBehavior) Type() protoreflect.EnumType {
return &file_google_api_field_behavior_proto_enumTypes[0]
}
func (x FieldBehavior) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use FieldBehavior.Descriptor instead.
func (FieldBehavior) EnumDescriptor() ([]byte, []int) {
return file_google_api_field_behavior_proto_rawDescGZIP(), []int{0}
}
var file_google_api_field_behavior_proto_extTypes = []protoimpl.ExtensionInfo{
{
ExtendedType: (*descriptorpb.FieldOptions)(nil),
ExtensionType: ([]FieldBehavior)(nil),
Field: 1052,
Name: "google.api.field_behavior",
Tag: "varint,1052,rep,name=field_behavior,enum=google.api.FieldBehavior",
Filename: "google/api/field_behavior.proto",
},
}
// Extension fields to descriptorpb.FieldOptions.
var (
// A designation of a specific field behavior (required, output only, etc.)
// in protobuf messages.
//
// Examples:
//
// string name = 1 [(google.api.field_behavior) = REQUIRED];
// State state = 1 [(google.api.field_behavior) = OUTPUT_ONLY];
// google.protobuf.Duration ttl = 1
// [(google.api.field_behavior) = INPUT_ONLY];
// google.protobuf.Timestamp expire_time = 1
// [(google.api.field_behavior) = OUTPUT_ONLY,
// (google.api.field_behavior) = IMMUTABLE];
//
// repeated google.api.FieldBehavior field_behavior = 1052;
E_FieldBehavior = &file_google_api_field_behavior_proto_extTypes[0]
)
var File_google_api_field_behavior_proto protoreflect.FileDescriptor
var file_google_api_field_behavior_proto_rawDesc = []byte{
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var (
file_google_api_field_behavior_proto_rawDescOnce sync.Once
file_google_api_field_behavior_proto_rawDescData = file_google_api_field_behavior_proto_rawDesc
)
func file_google_api_field_behavior_proto_rawDescGZIP() []byte {
file_google_api_field_behavior_proto_rawDescOnce.Do(func() {
file_google_api_field_behavior_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_api_field_behavior_proto_rawDescData)
})
return file_google_api_field_behavior_proto_rawDescData
}
var file_google_api_field_behavior_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
var file_google_api_field_behavior_proto_goTypes = []interface{}{
(FieldBehavior)(0), // 0: google.api.FieldBehavior
(*descriptorpb.FieldOptions)(nil), // 1: google.protobuf.FieldOptions
}
var file_google_api_field_behavior_proto_depIdxs = []int32{
1, // 0: google.api.field_behavior:extendee -> google.protobuf.FieldOptions
0, // 1: google.api.field_behavior:type_name -> google.api.FieldBehavior
2, // [2:2] is the sub-list for method output_type
2, // [2:2] is the sub-list for method input_type
1, // [1:2] is the sub-list for extension type_name
0, // [0:1] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
}
func init() { file_google_api_field_behavior_proto_init() }
func file_google_api_field_behavior_proto_init() {
if File_google_api_field_behavior_proto != nil {
return
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_api_field_behavior_proto_rawDesc,
NumEnums: 1,
NumMessages: 0,
NumExtensions: 1,
NumServices: 0,
},
GoTypes: file_google_api_field_behavior_proto_goTypes,
DependencyIndexes: file_google_api_field_behavior_proto_depIdxs,
EnumInfos: file_google_api_field_behavior_proto_enumTypes,
ExtensionInfos: file_google_api_field_behavior_proto_extTypes,
}.Build()
File_google_api_field_behavior_proto = out.File
file_google_api_field_behavior_proto_rawDesc = nil
file_google_api_field_behavior_proto_goTypes = nil
file_google_api_field_behavior_proto_depIdxs = nil
}

392
e2e/vendor/google.golang.org/genproto/googleapis/api/annotations/field_info.pb.go generated vendored Normal file
View File

@ -0,0 +1,392 @@
// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.24.4
// source: google/api/field_info.proto
package annotations
import (
reflect "reflect"
sync "sync"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
descriptorpb "google.golang.org/protobuf/types/descriptorpb"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// The standard format of a field value. The supported formats are all backed
// by either an RFC defined by the IETF or a Google-defined AIP.
type FieldInfo_Format int32
const (
// Default, unspecified value.
FieldInfo_FORMAT_UNSPECIFIED FieldInfo_Format = 0
// Universally Unique Identifier, version 4, value as defined by
// https://datatracker.ietf.org/doc/html/rfc4122. The value may be
// normalized to entirely lowercase letters. For example, the value
// `F47AC10B-58CC-0372-8567-0E02B2C3D479` would be normalized to
// `f47ac10b-58cc-0372-8567-0e02b2c3d479`.
FieldInfo_UUID4 FieldInfo_Format = 1
// Internet Protocol v4 value as defined by [RFC
// 791](https://datatracker.ietf.org/doc/html/rfc791). The value may be
// condensed, with leading zeros in each octet stripped. For example,
// `001.022.233.040` would be condensed to `1.22.233.40`.
FieldInfo_IPV4 FieldInfo_Format = 2
// Internet Protocol v6 value as defined by [RFC
// 2460](https://datatracker.ietf.org/doc/html/rfc2460). The value may be
// normalized to entirely lowercase letters with zeros compressed, following
// [RFC 5952](https://datatracker.ietf.org/doc/html/rfc5952). For example,
// the value `2001:0DB8:0::0` would be normalized to `2001:db8::`.
FieldInfo_IPV6 FieldInfo_Format = 3
// An IP address in either v4 or v6 format as described by the individual
// values defined herein. See the comments on the IPV4 and IPV6 types for
// allowed normalizations of each.
FieldInfo_IPV4_OR_IPV6 FieldInfo_Format = 4
)
// Enum value maps for FieldInfo_Format.
var (
FieldInfo_Format_name = map[int32]string{
0: "FORMAT_UNSPECIFIED",
1: "UUID4",
2: "IPV4",
3: "IPV6",
4: "IPV4_OR_IPV6",
}
FieldInfo_Format_value = map[string]int32{
"FORMAT_UNSPECIFIED": 0,
"UUID4": 1,
"IPV4": 2,
"IPV6": 3,
"IPV4_OR_IPV6": 4,
}
)
func (x FieldInfo_Format) Enum() *FieldInfo_Format {
p := new(FieldInfo_Format)
*p = x
return p
}
func (x FieldInfo_Format) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (FieldInfo_Format) Descriptor() protoreflect.EnumDescriptor {
return file_google_api_field_info_proto_enumTypes[0].Descriptor()
}
func (FieldInfo_Format) Type() protoreflect.EnumType {
return &file_google_api_field_info_proto_enumTypes[0]
}
func (x FieldInfo_Format) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use FieldInfo_Format.Descriptor instead.
func (FieldInfo_Format) EnumDescriptor() ([]byte, []int) {
return file_google_api_field_info_proto_rawDescGZIP(), []int{0, 0}
}
// Rich semantic information of an API field beyond basic typing.
type FieldInfo struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The standard format of a field value. This does not explicitly configure
// any API consumer, just documents the API's format for the field it is
// applied to.
Format FieldInfo_Format `protobuf:"varint,1,opt,name=format,proto3,enum=google.api.FieldInfo_Format" json:"format,omitempty"`
// The type(s) that the annotated, generic field may represent.
//
// Currently, this must only be used on fields of type `google.protobuf.Any`.
// Supporting other generic types may be considered in the future.
ReferencedTypes []*TypeReference `protobuf:"bytes,2,rep,name=referenced_types,json=referencedTypes,proto3" json:"referenced_types,omitempty"`
}
func (x *FieldInfo) Reset() {
*x = FieldInfo{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_field_info_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *FieldInfo) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*FieldInfo) ProtoMessage() {}
func (x *FieldInfo) ProtoReflect() protoreflect.Message {
mi := &file_google_api_field_info_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use FieldInfo.ProtoReflect.Descriptor instead.
func (*FieldInfo) Descriptor() ([]byte, []int) {
return file_google_api_field_info_proto_rawDescGZIP(), []int{0}
}
func (x *FieldInfo) GetFormat() FieldInfo_Format {
if x != nil {
return x.Format
}
return FieldInfo_FORMAT_UNSPECIFIED
}
func (x *FieldInfo) GetReferencedTypes() []*TypeReference {
if x != nil {
return x.ReferencedTypes
}
return nil
}
// A reference to a message type, for use in [FieldInfo][google.api.FieldInfo].
type TypeReference struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The name of the type that the annotated, generic field may represent.
// If the type is in the same protobuf package, the value can be the simple
// message name e.g., `"MyMessage"`. Otherwise, the value must be the
// fully-qualified message name e.g., `"google.library.v1.Book"`.
//
// If the type(s) are unknown to the service (e.g. the field accepts generic
// user input), use the wildcard `"*"` to denote this behavior.
//
// See [AIP-202](https://google.aip.dev/202#type-references) for more details.
TypeName string `protobuf:"bytes,1,opt,name=type_name,json=typeName,proto3" json:"type_name,omitempty"`
}
func (x *TypeReference) Reset() {
*x = TypeReference{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_field_info_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *TypeReference) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*TypeReference) ProtoMessage() {}
func (x *TypeReference) ProtoReflect() protoreflect.Message {
mi := &file_google_api_field_info_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use TypeReference.ProtoReflect.Descriptor instead.
func (*TypeReference) Descriptor() ([]byte, []int) {
return file_google_api_field_info_proto_rawDescGZIP(), []int{1}
}
func (x *TypeReference) GetTypeName() string {
if x != nil {
return x.TypeName
}
return ""
}
var file_google_api_field_info_proto_extTypes = []protoimpl.ExtensionInfo{
{
ExtendedType: (*descriptorpb.FieldOptions)(nil),
ExtensionType: (*FieldInfo)(nil),
Field: 291403980,
Name: "google.api.field_info",
Tag: "bytes,291403980,opt,name=field_info",
Filename: "google/api/field_info.proto",
},
}
// Extension fields to descriptorpb.FieldOptions.
var (
// Rich semantic descriptor of an API field beyond the basic typing.
//
// Examples:
//
// string request_id = 1 [(google.api.field_info).format = UUID4];
// string old_ip_address = 2 [(google.api.field_info).format = IPV4];
// string new_ip_address = 3 [(google.api.field_info).format = IPV6];
// string actual_ip_address = 4 [
// (google.api.field_info).format = IPV4_OR_IPV6
// ];
// google.protobuf.Any generic_field = 5 [
// (google.api.field_info).referenced_types = {type_name: "ActualType"},
// (google.api.field_info).referenced_types = {type_name: "OtherType"},
// ];
// google.protobuf.Any generic_user_input = 5 [
// (google.api.field_info).referenced_types = {type_name: "*"},
// ];
//
// optional google.api.FieldInfo field_info = 291403980;
E_FieldInfo = &file_google_api_field_info_proto_extTypes[0]
)
var File_google_api_field_info_proto protoreflect.FileDescriptor
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}
var (
file_google_api_field_info_proto_rawDescOnce sync.Once
file_google_api_field_info_proto_rawDescData = file_google_api_field_info_proto_rawDesc
)
func file_google_api_field_info_proto_rawDescGZIP() []byte {
file_google_api_field_info_proto_rawDescOnce.Do(func() {
file_google_api_field_info_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_api_field_info_proto_rawDescData)
})
return file_google_api_field_info_proto_rawDescData
}
var file_google_api_field_info_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
var file_google_api_field_info_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
var file_google_api_field_info_proto_goTypes = []interface{}{
(FieldInfo_Format)(0), // 0: google.api.FieldInfo.Format
(*FieldInfo)(nil), // 1: google.api.FieldInfo
(*TypeReference)(nil), // 2: google.api.TypeReference
(*descriptorpb.FieldOptions)(nil), // 3: google.protobuf.FieldOptions
}
var file_google_api_field_info_proto_depIdxs = []int32{
0, // 0: google.api.FieldInfo.format:type_name -> google.api.FieldInfo.Format
2, // 1: google.api.FieldInfo.referenced_types:type_name -> google.api.TypeReference
3, // 2: google.api.field_info:extendee -> google.protobuf.FieldOptions
1, // 3: google.api.field_info:type_name -> google.api.FieldInfo
4, // [4:4] is the sub-list for method output_type
4, // [4:4] is the sub-list for method input_type
3, // [3:4] is the sub-list for extension type_name
2, // [2:3] is the sub-list for extension extendee
0, // [0:2] is the sub-list for field type_name
}
func init() { file_google_api_field_info_proto_init() }
func file_google_api_field_info_proto_init() {
if File_google_api_field_info_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_google_api_field_info_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*FieldInfo); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_field_info_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*TypeReference); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_api_field_info_proto_rawDesc,
NumEnums: 1,
NumMessages: 2,
NumExtensions: 1,
NumServices: 0,
},
GoTypes: file_google_api_field_info_proto_goTypes,
DependencyIndexes: file_google_api_field_info_proto_depIdxs,
EnumInfos: file_google_api_field_info_proto_enumTypes,
MessageInfos: file_google_api_field_info_proto_msgTypes,
ExtensionInfos: file_google_api_field_info_proto_extTypes,
}.Build()
File_google_api_field_info_proto = out.File
file_google_api_field_info_proto_rawDesc = nil
file_google_api_field_info_proto_goTypes = nil
file_google_api_field_info_proto_depIdxs = nil
}

774
e2e/vendor/google.golang.org/genproto/googleapis/api/annotations/http.pb.go generated vendored Normal file
View File

@ -0,0 +1,774 @@
// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.24.4
// source: google/api/http.proto
package annotations
import (
reflect "reflect"
sync "sync"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// Defines the HTTP configuration for an API service. It contains a list of
// [HttpRule][google.api.HttpRule], each specifying the mapping of an RPC method
// to one or more HTTP REST API methods.
type Http struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// A list of HTTP configuration rules that apply to individual API methods.
//
// **NOTE:** All service configuration rules follow "last one wins" order.
Rules []*HttpRule `protobuf:"bytes,1,rep,name=rules,proto3" json:"rules,omitempty"`
// When set to true, URL path parameters will be fully URI-decoded except in
// cases of single segment matches in reserved expansion, where "%2F" will be
// left encoded.
//
// The default behavior is to not decode RFC 6570 reserved characters in multi
// segment matches.
FullyDecodeReservedExpansion bool `protobuf:"varint,2,opt,name=fully_decode_reserved_expansion,json=fullyDecodeReservedExpansion,proto3" json:"fully_decode_reserved_expansion,omitempty"`
}
func (x *Http) Reset() {
*x = Http{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_http_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Http) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Http) ProtoMessage() {}
func (x *Http) ProtoReflect() protoreflect.Message {
mi := &file_google_api_http_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Http.ProtoReflect.Descriptor instead.
func (*Http) Descriptor() ([]byte, []int) {
return file_google_api_http_proto_rawDescGZIP(), []int{0}
}
func (x *Http) GetRules() []*HttpRule {
if x != nil {
return x.Rules
}
return nil
}
func (x *Http) GetFullyDecodeReservedExpansion() bool {
if x != nil {
return x.FullyDecodeReservedExpansion
}
return false
}
// gRPC Transcoding
//
// gRPC Transcoding is a feature for mapping between a gRPC method and one or
// more HTTP REST endpoints. It allows developers to build a single API service
// that supports both gRPC APIs and REST APIs. Many systems, including [Google
// APIs](https://github.com/googleapis/googleapis),
// [Cloud Endpoints](https://cloud.google.com/endpoints), [gRPC
// Gateway](https://github.com/grpc-ecosystem/grpc-gateway),
// and [Envoy](https://github.com/envoyproxy/envoy) proxy support this feature
// and use it for large scale production services.
//
// `HttpRule` defines the schema of the gRPC/REST mapping. The mapping specifies
// how different portions of the gRPC request message are mapped to the URL
// path, URL query parameters, and HTTP request body. It also controls how the
// gRPC response message is mapped to the HTTP response body. `HttpRule` is
// typically specified as an `google.api.http` annotation on the gRPC method.
//
// Each mapping specifies a URL path template and an HTTP method. The path
// template may refer to one or more fields in the gRPC request message, as long
// as each field is a non-repeated field with a primitive (non-message) type.
// The path template controls how fields of the request message are mapped to
// the URL path.
//
// Example:
//
// service Messaging {
// rpc GetMessage(GetMessageRequest) returns (Message) {
// option (google.api.http) = {
// get: "/v1/{name=messages/*}"
// };
// }
// }
// message GetMessageRequest {
// string name = 1; // Mapped to URL path.
// }
// message Message {
// string text = 1; // The resource content.
// }
//
// This enables an HTTP REST to gRPC mapping as below:
//
// - HTTP: `GET /v1/messages/123456`
// - gRPC: `GetMessage(name: "messages/123456")`
//
// Any fields in the request message which are not bound by the path template
// automatically become HTTP query parameters if there is no HTTP request body.
// For example:
//
// service Messaging {
// rpc GetMessage(GetMessageRequest) returns (Message) {
// option (google.api.http) = {
// get:"/v1/messages/{message_id}"
// };
// }
// }
// message GetMessageRequest {
// message SubMessage {
// string subfield = 1;
// }
// string message_id = 1; // Mapped to URL path.
// int64 revision = 2; // Mapped to URL query parameter `revision`.
// SubMessage sub = 3; // Mapped to URL query parameter `sub.subfield`.
// }
//
// This enables a HTTP JSON to RPC mapping as below:
//
// - HTTP: `GET /v1/messages/123456?revision=2&sub.subfield=foo`
// - gRPC: `GetMessage(message_id: "123456" revision: 2 sub:
// SubMessage(subfield: "foo"))`
//
// Note that fields which are mapped to URL query parameters must have a
// primitive type or a repeated primitive type or a non-repeated message type.
// In the case of a repeated type, the parameter can be repeated in the URL
// as `...?param=A&param=B`. In the case of a message type, each field of the
// message is mapped to a separate parameter, such as
// `...?foo.a=A&foo.b=B&foo.c=C`.
//
// For HTTP methods that allow a request body, the `body` field
// specifies the mapping. Consider a REST update method on the
// message resource collection:
//
// service Messaging {
// rpc UpdateMessage(UpdateMessageRequest) returns (Message) {
// option (google.api.http) = {
// patch: "/v1/messages/{message_id}"
// body: "message"
// };
// }
// }
// message UpdateMessageRequest {
// string message_id = 1; // mapped to the URL
// Message message = 2; // mapped to the body
// }
//
// The following HTTP JSON to RPC mapping is enabled, where the
// representation of the JSON in the request body is determined by
// protos JSON encoding:
//
// - HTTP: `PATCH /v1/messages/123456 { "text": "Hi!" }`
// - gRPC: `UpdateMessage(message_id: "123456" message { text: "Hi!" })`
//
// The special name `*` can be used in the body mapping to define that
// every field not bound by the path template should be mapped to the
// request body. This enables the following alternative definition of
// the update method:
//
// service Messaging {
// rpc UpdateMessage(Message) returns (Message) {
// option (google.api.http) = {
// patch: "/v1/messages/{message_id}"
// body: "*"
// };
// }
// }
// message Message {
// string message_id = 1;
// string text = 2;
// }
//
// The following HTTP JSON to RPC mapping is enabled:
//
// - HTTP: `PATCH /v1/messages/123456 { "text": "Hi!" }`
// - gRPC: `UpdateMessage(message_id: "123456" text: "Hi!")`
//
// Note that when using `*` in the body mapping, it is not possible to
// have HTTP parameters, as all fields not bound by the path end in
// the body. This makes this option more rarely used in practice when
// defining REST APIs. The common usage of `*` is in custom methods
// which don't use the URL at all for transferring data.
//
// It is possible to define multiple HTTP methods for one RPC by using
// the `additional_bindings` option. Example:
//
// service Messaging {
// rpc GetMessage(GetMessageRequest) returns (Message) {
// option (google.api.http) = {
// get: "/v1/messages/{message_id}"
// additional_bindings {
// get: "/v1/users/{user_id}/messages/{message_id}"
// }
// };
// }
// }
// message GetMessageRequest {
// string message_id = 1;
// string user_id = 2;
// }
//
// This enables the following two alternative HTTP JSON to RPC mappings:
//
// - HTTP: `GET /v1/messages/123456`
// - gRPC: `GetMessage(message_id: "123456")`
//
// - HTTP: `GET /v1/users/me/messages/123456`
// - gRPC: `GetMessage(user_id: "me" message_id: "123456")`
//
// # Rules for HTTP mapping
//
// 1. Leaf request fields (recursive expansion nested messages in the request
// message) are classified into three categories:
// - Fields referred by the path template. They are passed via the URL path.
// - Fields referred by the [HttpRule.body][google.api.HttpRule.body]. They
// are passed via the HTTP
// request body.
// - All other fields are passed via the URL query parameters, and the
// parameter name is the field path in the request message. A repeated
// field can be represented as multiple query parameters under the same
// name.
// 2. If [HttpRule.body][google.api.HttpRule.body] is "*", there is no URL
// query parameter, all fields
// are passed via URL path and HTTP request body.
// 3. If [HttpRule.body][google.api.HttpRule.body] is omitted, there is no HTTP
// request body, all
// fields are passed via URL path and URL query parameters.
//
// Path template syntax
//
// Template = "/" Segments [ Verb ] ;
// Segments = Segment { "/" Segment } ;
// Segment = "*" | "**" | LITERAL | Variable ;
// Variable = "{" FieldPath [ "=" Segments ] "}" ;
// FieldPath = IDENT { "." IDENT } ;
// Verb = ":" LITERAL ;
//
// The syntax `*` matches a single URL path segment. The syntax `**` matches
// zero or more URL path segments, which must be the last part of the URL path
// except the `Verb`.
//
// The syntax `Variable` matches part of the URL path as specified by its
// template. A variable template must not contain other variables. If a variable
// matches a single path segment, its template may be omitted, e.g. `{var}`
// is equivalent to `{var=*}`.
//
// The syntax `LITERAL` matches literal text in the URL path. If the `LITERAL`
// contains any reserved character, such characters should be percent-encoded
// before the matching.
//
// If a variable contains exactly one path segment, such as `"{var}"` or
// `"{var=*}"`, when such a variable is expanded into a URL path on the client
// side, all characters except `[-_.~0-9a-zA-Z]` are percent-encoded. The
// server side does the reverse decoding. Such variables show up in the
// [Discovery
// Document](https://developers.google.com/discovery/v1/reference/apis) as
// `{var}`.
//
// If a variable contains multiple path segments, such as `"{var=foo/*}"`
// or `"{var=**}"`, when such a variable is expanded into a URL path on the
// client side, all characters except `[-_.~/0-9a-zA-Z]` are percent-encoded.
// The server side does the reverse decoding, except "%2F" and "%2f" are left
// unchanged. Such variables show up in the
// [Discovery
// Document](https://developers.google.com/discovery/v1/reference/apis) as
// `{+var}`.
//
// # Using gRPC API Service Configuration
//
// gRPC API Service Configuration (service config) is a configuration language
// for configuring a gRPC service to become a user-facing product. The
// service config is simply the YAML representation of the `google.api.Service`
// proto message.
//
// As an alternative to annotating your proto file, you can configure gRPC
// transcoding in your service config YAML files. You do this by specifying a
// `HttpRule` that maps the gRPC method to a REST endpoint, achieving the same
// effect as the proto annotation. This can be particularly useful if you
// have a proto that is reused in multiple services. Note that any transcoding
// specified in the service config will override any matching transcoding
// configuration in the proto.
//
// The following example selects a gRPC method and applies an `HttpRule` to it:
//
// http:
// rules:
// - selector: example.v1.Messaging.GetMessage
// get: /v1/messages/{message_id}/{sub.subfield}
//
// # Special notes
//
// When gRPC Transcoding is used to map a gRPC to JSON REST endpoints, the
// proto to JSON conversion must follow the [proto3
// specification](https://developers.google.com/protocol-buffers/docs/proto3#json).
//
// While the single segment variable follows the semantics of
// [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.2 Simple String
// Expansion, the multi segment variable **does not** follow RFC 6570 Section
// 3.2.3 Reserved Expansion. The reason is that the Reserved Expansion
// does not expand special characters like `?` and `#`, which would lead
// to invalid URLs. As the result, gRPC Transcoding uses a custom encoding
// for multi segment variables.
//
// The path variables **must not** refer to any repeated or mapped field,
// because client libraries are not capable of handling such variable expansion.
//
// The path variables **must not** capture the leading "/" character. The reason
// is that the most common use case "{var}" does not capture the leading "/"
// character. For consistency, all path variables must share the same behavior.
//
// Repeated message fields must not be mapped to URL query parameters, because
// no client library can support such complicated mapping.
//
// If an API needs to use a JSON array for request or response body, it can map
// the request or response body to a repeated field. However, some gRPC
// Transcoding implementations may not support this feature.
type HttpRule struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// Selects a method to which this rule applies.
//
// Refer to [selector][google.api.DocumentationRule.selector] for syntax
// details.
Selector string `protobuf:"bytes,1,opt,name=selector,proto3" json:"selector,omitempty"`
// Determines the URL pattern is matched by this rules. This pattern can be
// used with any of the {get|put|post|delete|patch} methods. A custom method
// can be defined using the 'custom' field.
//
// Types that are assignable to Pattern:
//
// *HttpRule_Get
// *HttpRule_Put
// *HttpRule_Post
// *HttpRule_Delete
// *HttpRule_Patch
// *HttpRule_Custom
Pattern isHttpRule_Pattern `protobuf_oneof:"pattern"`
// The name of the request field whose value is mapped to the HTTP request
// body, or `*` for mapping all request fields not captured by the path
// pattern to the HTTP body, or omitted for not having any HTTP request body.
//
// NOTE: the referred field must be present at the top-level of the request
// message type.
Body string `protobuf:"bytes,7,opt,name=body,proto3" json:"body,omitempty"`
// Optional. The name of the response field whose value is mapped to the HTTP
// response body. When omitted, the entire response message will be used
// as the HTTP response body.
//
// NOTE: The referred field must be present at the top-level of the response
// message type.
ResponseBody string `protobuf:"bytes,12,opt,name=response_body,json=responseBody,proto3" json:"response_body,omitempty"`
// Additional HTTP bindings for the selector. Nested bindings must
// not contain an `additional_bindings` field themselves (that is,
// the nesting may only be one level deep).
AdditionalBindings []*HttpRule `protobuf:"bytes,11,rep,name=additional_bindings,json=additionalBindings,proto3" json:"additional_bindings,omitempty"`
}
func (x *HttpRule) Reset() {
*x = HttpRule{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_http_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *HttpRule) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*HttpRule) ProtoMessage() {}
func (x *HttpRule) ProtoReflect() protoreflect.Message {
mi := &file_google_api_http_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use HttpRule.ProtoReflect.Descriptor instead.
func (*HttpRule) Descriptor() ([]byte, []int) {
return file_google_api_http_proto_rawDescGZIP(), []int{1}
}
func (x *HttpRule) GetSelector() string {
if x != nil {
return x.Selector
}
return ""
}
func (m *HttpRule) GetPattern() isHttpRule_Pattern {
if m != nil {
return m.Pattern
}
return nil
}
func (x *HttpRule) GetGet() string {
if x, ok := x.GetPattern().(*HttpRule_Get); ok {
return x.Get
}
return ""
}
func (x *HttpRule) GetPut() string {
if x, ok := x.GetPattern().(*HttpRule_Put); ok {
return x.Put
}
return ""
}
func (x *HttpRule) GetPost() string {
if x, ok := x.GetPattern().(*HttpRule_Post); ok {
return x.Post
}
return ""
}
func (x *HttpRule) GetDelete() string {
if x, ok := x.GetPattern().(*HttpRule_Delete); ok {
return x.Delete
}
return ""
}
func (x *HttpRule) GetPatch() string {
if x, ok := x.GetPattern().(*HttpRule_Patch); ok {
return x.Patch
}
return ""
}
func (x *HttpRule) GetCustom() *CustomHttpPattern {
if x, ok := x.GetPattern().(*HttpRule_Custom); ok {
return x.Custom
}
return nil
}
func (x *HttpRule) GetBody() string {
if x != nil {
return x.Body
}
return ""
}
func (x *HttpRule) GetResponseBody() string {
if x != nil {
return x.ResponseBody
}
return ""
}
func (x *HttpRule) GetAdditionalBindings() []*HttpRule {
if x != nil {
return x.AdditionalBindings
}
return nil
}
type isHttpRule_Pattern interface {
isHttpRule_Pattern()
}
type HttpRule_Get struct {
// Maps to HTTP GET. Used for listing and getting information about
// resources.
Get string `protobuf:"bytes,2,opt,name=get,proto3,oneof"`
}
type HttpRule_Put struct {
// Maps to HTTP PUT. Used for replacing a resource.
Put string `protobuf:"bytes,3,opt,name=put,proto3,oneof"`
}
type HttpRule_Post struct {
// Maps to HTTP POST. Used for creating a resource or performing an action.
Post string `protobuf:"bytes,4,opt,name=post,proto3,oneof"`
}
type HttpRule_Delete struct {
// Maps to HTTP DELETE. Used for deleting a resource.
Delete string `protobuf:"bytes,5,opt,name=delete,proto3,oneof"`
}
type HttpRule_Patch struct {
// Maps to HTTP PATCH. Used for updating a resource.
Patch string `protobuf:"bytes,6,opt,name=patch,proto3,oneof"`
}
type HttpRule_Custom struct {
// The custom pattern is used for specifying an HTTP method that is not
// included in the `pattern` field, such as HEAD, or "*" to leave the
// HTTP method unspecified for this rule. The wild-card rule is useful
// for services that provide content to Web (HTML) clients.
Custom *CustomHttpPattern `protobuf:"bytes,8,opt,name=custom,proto3,oneof"`
}
func (*HttpRule_Get) isHttpRule_Pattern() {}
func (*HttpRule_Put) isHttpRule_Pattern() {}
func (*HttpRule_Post) isHttpRule_Pattern() {}
func (*HttpRule_Delete) isHttpRule_Pattern() {}
func (*HttpRule_Patch) isHttpRule_Pattern() {}
func (*HttpRule_Custom) isHttpRule_Pattern() {}
// A custom pattern is used for defining custom HTTP verb.
type CustomHttpPattern struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The name of this custom HTTP verb.
Kind string `protobuf:"bytes,1,opt,name=kind,proto3" json:"kind,omitempty"`
// The path matched by this custom verb.
Path string `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"`
}
func (x *CustomHttpPattern) Reset() {
*x = CustomHttpPattern{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_http_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *CustomHttpPattern) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*CustomHttpPattern) ProtoMessage() {}
func (x *CustomHttpPattern) ProtoReflect() protoreflect.Message {
mi := &file_google_api_http_proto_msgTypes[2]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use CustomHttpPattern.ProtoReflect.Descriptor instead.
func (*CustomHttpPattern) Descriptor() ([]byte, []int) {
return file_google_api_http_proto_rawDescGZIP(), []int{2}
}
func (x *CustomHttpPattern) GetKind() string {
if x != nil {
return x.Kind
}
return ""
}
func (x *CustomHttpPattern) GetPath() string {
if x != nil {
return x.Path
}
return ""
}
var File_google_api_http_proto protoreflect.FileDescriptor
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}
var (
file_google_api_http_proto_rawDescOnce sync.Once
file_google_api_http_proto_rawDescData = file_google_api_http_proto_rawDesc
)
func file_google_api_http_proto_rawDescGZIP() []byte {
file_google_api_http_proto_rawDescOnce.Do(func() {
file_google_api_http_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_api_http_proto_rawDescData)
})
return file_google_api_http_proto_rawDescData
}
var file_google_api_http_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
var file_google_api_http_proto_goTypes = []interface{}{
(*Http)(nil), // 0: google.api.Http
(*HttpRule)(nil), // 1: google.api.HttpRule
(*CustomHttpPattern)(nil), // 2: google.api.CustomHttpPattern
}
var file_google_api_http_proto_depIdxs = []int32{
1, // 0: google.api.Http.rules:type_name -> google.api.HttpRule
2, // 1: google.api.HttpRule.custom:type_name -> google.api.CustomHttpPattern
1, // 2: google.api.HttpRule.additional_bindings:type_name -> google.api.HttpRule
3, // [3:3] is the sub-list for method output_type
3, // [3:3] is the sub-list for method input_type
3, // [3:3] is the sub-list for extension type_name
3, // [3:3] is the sub-list for extension extendee
0, // [0:3] is the sub-list for field type_name
}
func init() { file_google_api_http_proto_init() }
func file_google_api_http_proto_init() {
if File_google_api_http_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_google_api_http_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Http); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_http_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*HttpRule); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_http_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*CustomHttpPattern); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
file_google_api_http_proto_msgTypes[1].OneofWrappers = []interface{}{
(*HttpRule_Get)(nil),
(*HttpRule_Put)(nil),
(*HttpRule_Post)(nil),
(*HttpRule_Delete)(nil),
(*HttpRule_Patch)(nil),
(*HttpRule_Custom)(nil),
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_api_http_proto_rawDesc,
NumEnums: 0,
NumMessages: 3,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_google_api_http_proto_goTypes,
DependencyIndexes: file_google_api_http_proto_depIdxs,
MessageInfos: file_google_api_http_proto_msgTypes,
}.Build()
File_google_api_http_proto = out.File
file_google_api_http_proto_rawDesc = nil
file_google_api_http_proto_goTypes = nil
file_google_api_http_proto_depIdxs = nil
}

660
e2e/vendor/google.golang.org/genproto/googleapis/api/annotations/resource.pb.go generated vendored Normal file
View File

@ -0,0 +1,660 @@
// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.24.4
// source: google/api/resource.proto
package annotations
import (
reflect "reflect"
sync "sync"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
descriptorpb "google.golang.org/protobuf/types/descriptorpb"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// A description of the historical or future-looking state of the
// resource pattern.
type ResourceDescriptor_History int32
const (
// The "unset" value.
ResourceDescriptor_HISTORY_UNSPECIFIED ResourceDescriptor_History = 0
// The resource originally had one pattern and launched as such, and
// additional patterns were added later.
ResourceDescriptor_ORIGINALLY_SINGLE_PATTERN ResourceDescriptor_History = 1
// The resource has one pattern, but the API owner expects to add more
// later. (This is the inverse of ORIGINALLY_SINGLE_PATTERN, and prevents
// that from being necessary once there are multiple patterns.)
ResourceDescriptor_FUTURE_MULTI_PATTERN ResourceDescriptor_History = 2
)
// Enum value maps for ResourceDescriptor_History.
var (
ResourceDescriptor_History_name = map[int32]string{
0: "HISTORY_UNSPECIFIED",
1: "ORIGINALLY_SINGLE_PATTERN",
2: "FUTURE_MULTI_PATTERN",
}
ResourceDescriptor_History_value = map[string]int32{
"HISTORY_UNSPECIFIED": 0,
"ORIGINALLY_SINGLE_PATTERN": 1,
"FUTURE_MULTI_PATTERN": 2,
}
)
func (x ResourceDescriptor_History) Enum() *ResourceDescriptor_History {
p := new(ResourceDescriptor_History)
*p = x
return p
}
func (x ResourceDescriptor_History) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (ResourceDescriptor_History) Descriptor() protoreflect.EnumDescriptor {
return file_google_api_resource_proto_enumTypes[0].Descriptor()
}
func (ResourceDescriptor_History) Type() protoreflect.EnumType {
return &file_google_api_resource_proto_enumTypes[0]
}
func (x ResourceDescriptor_History) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use ResourceDescriptor_History.Descriptor instead.
func (ResourceDescriptor_History) EnumDescriptor() ([]byte, []int) {
return file_google_api_resource_proto_rawDescGZIP(), []int{0, 0}
}
// A flag representing a specific style that a resource claims to conform to.
type ResourceDescriptor_Style int32
const (
// The unspecified value. Do not use.
ResourceDescriptor_STYLE_UNSPECIFIED ResourceDescriptor_Style = 0
// This resource is intended to be "declarative-friendly".
//
// Declarative-friendly resources must be more strictly consistent, and
// setting this to true communicates to tools that this resource should
// adhere to declarative-friendly expectations.
//
// Note: This is used by the API linter (linter.aip.dev) to enable
// additional checks.
ResourceDescriptor_DECLARATIVE_FRIENDLY ResourceDescriptor_Style = 1
)
// Enum value maps for ResourceDescriptor_Style.
var (
ResourceDescriptor_Style_name = map[int32]string{
0: "STYLE_UNSPECIFIED",
1: "DECLARATIVE_FRIENDLY",
}
ResourceDescriptor_Style_value = map[string]int32{
"STYLE_UNSPECIFIED": 0,
"DECLARATIVE_FRIENDLY": 1,
}
)
func (x ResourceDescriptor_Style) Enum() *ResourceDescriptor_Style {
p := new(ResourceDescriptor_Style)
*p = x
return p
}
func (x ResourceDescriptor_Style) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (ResourceDescriptor_Style) Descriptor() protoreflect.EnumDescriptor {
return file_google_api_resource_proto_enumTypes[1].Descriptor()
}
func (ResourceDescriptor_Style) Type() protoreflect.EnumType {
return &file_google_api_resource_proto_enumTypes[1]
}
func (x ResourceDescriptor_Style) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use ResourceDescriptor_Style.Descriptor instead.
func (ResourceDescriptor_Style) EnumDescriptor() ([]byte, []int) {
return file_google_api_resource_proto_rawDescGZIP(), []int{0, 1}
}
// A simple descriptor of a resource type.
//
// ResourceDescriptor annotates a resource message (either by means of a
// protobuf annotation or use in the service config), and associates the
// resource's schema, the resource type, and the pattern of the resource name.
//
// Example:
//
// message Topic {
// // Indicates this message defines a resource schema.
// // Declares the resource type in the format of {service}/{kind}.
// // For Kubernetes resources, the format is {api group}/{kind}.
// option (google.api.resource) = {
// type: "pubsub.googleapis.com/Topic"
// pattern: "projects/{project}/topics/{topic}"
// };
// }
//
// The ResourceDescriptor Yaml config will look like:
//
// resources:
// - type: "pubsub.googleapis.com/Topic"
// pattern: "projects/{project}/topics/{topic}"
//
// Sometimes, resources have multiple patterns, typically because they can
// live under multiple parents.
//
// Example:
//
// message LogEntry {
// option (google.api.resource) = {
// type: "logging.googleapis.com/LogEntry"
// pattern: "projects/{project}/logs/{log}"
// pattern: "folders/{folder}/logs/{log}"
// pattern: "organizations/{organization}/logs/{log}"
// pattern: "billingAccounts/{billing_account}/logs/{log}"
// };
// }
//
// The ResourceDescriptor Yaml config will look like:
//
// resources:
// - type: 'logging.googleapis.com/LogEntry'
// pattern: "projects/{project}/logs/{log}"
// pattern: "folders/{folder}/logs/{log}"
// pattern: "organizations/{organization}/logs/{log}"
// pattern: "billingAccounts/{billing_account}/logs/{log}"
type ResourceDescriptor struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The resource type. It must be in the format of
// {service_name}/{resource_type_kind}. The `resource_type_kind` must be
// singular and must not include version numbers.
//
// Example: `storage.googleapis.com/Bucket`
//
// The value of the resource_type_kind must follow the regular expression
// /[A-Za-z][a-zA-Z0-9]+/. It should start with an upper case character and
// should use PascalCase (UpperCamelCase). The maximum number of
// characters allowed for the `resource_type_kind` is 100.
Type string `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
// Optional. The relative resource name pattern associated with this resource
// type. The DNS prefix of the full resource name shouldn't be specified here.
//
// The path pattern must follow the syntax, which aligns with HTTP binding
// syntax:
//
// Template = Segment { "/" Segment } ;
// Segment = LITERAL | Variable ;
// Variable = "{" LITERAL "}" ;
//
// Examples:
//
// - "projects/{project}/topics/{topic}"
// - "projects/{project}/knowledgeBases/{knowledge_base}"
//
// The components in braces correspond to the IDs for each resource in the
// hierarchy. It is expected that, if multiple patterns are provided,
// the same component name (e.g. "project") refers to IDs of the same
// type of resource.
Pattern []string `protobuf:"bytes,2,rep,name=pattern,proto3" json:"pattern,omitempty"`
// Optional. The field on the resource that designates the resource name
// field. If omitted, this is assumed to be "name".
NameField string `protobuf:"bytes,3,opt,name=name_field,json=nameField,proto3" json:"name_field,omitempty"`
// Optional. The historical or future-looking state of the resource pattern.
//
// Example:
//
// // The InspectTemplate message originally only supported resource
// // names with organization, and project was added later.
// message InspectTemplate {
// option (google.api.resource) = {
// type: "dlp.googleapis.com/InspectTemplate"
// pattern:
// "organizations/{organization}/inspectTemplates/{inspect_template}"
// pattern: "projects/{project}/inspectTemplates/{inspect_template}"
// history: ORIGINALLY_SINGLE_PATTERN
// };
// }
History ResourceDescriptor_History `protobuf:"varint,4,opt,name=history,proto3,enum=google.api.ResourceDescriptor_History" json:"history,omitempty"`
// The plural name used in the resource name and permission names, such as
// 'projects' for the resource name of 'projects/{project}' and the permission
// name of 'cloudresourcemanager.googleapis.com/projects.get'. One exception
// to this is for Nested Collections that have stuttering names, as defined
// in [AIP-122](https://google.aip.dev/122#nested-collections), where the
// collection ID in the resource name pattern does not necessarily directly
// match the `plural` value.
//
// It is the same concept of the `plural` field in k8s CRD spec
// https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/
//
// Note: The plural form is required even for singleton resources. See
// https://aip.dev/156
Plural string `protobuf:"bytes,5,opt,name=plural,proto3" json:"plural,omitempty"`
// The same concept of the `singular` field in k8s CRD spec
// https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/
// Such as "project" for the `resourcemanager.googleapis.com/Project` type.
Singular string `protobuf:"bytes,6,opt,name=singular,proto3" json:"singular,omitempty"`
// Style flag(s) for this resource.
// These indicate that a resource is expected to conform to a given
// style. See the specific style flags for additional information.
Style []ResourceDescriptor_Style `protobuf:"varint,10,rep,packed,name=style,proto3,enum=google.api.ResourceDescriptor_Style" json:"style,omitempty"`
}
func (x *ResourceDescriptor) Reset() {
*x = ResourceDescriptor{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_resource_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *ResourceDescriptor) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*ResourceDescriptor) ProtoMessage() {}
func (x *ResourceDescriptor) ProtoReflect() protoreflect.Message {
mi := &file_google_api_resource_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use ResourceDescriptor.ProtoReflect.Descriptor instead.
func (*ResourceDescriptor) Descriptor() ([]byte, []int) {
return file_google_api_resource_proto_rawDescGZIP(), []int{0}
}
func (x *ResourceDescriptor) GetType() string {
if x != nil {
return x.Type
}
return ""
}
func (x *ResourceDescriptor) GetPattern() []string {
if x != nil {
return x.Pattern
}
return nil
}
func (x *ResourceDescriptor) GetNameField() string {
if x != nil {
return x.NameField
}
return ""
}
func (x *ResourceDescriptor) GetHistory() ResourceDescriptor_History {
if x != nil {
return x.History
}
return ResourceDescriptor_HISTORY_UNSPECIFIED
}
func (x *ResourceDescriptor) GetPlural() string {
if x != nil {
return x.Plural
}
return ""
}
func (x *ResourceDescriptor) GetSingular() string {
if x != nil {
return x.Singular
}
return ""
}
func (x *ResourceDescriptor) GetStyle() []ResourceDescriptor_Style {
if x != nil {
return x.Style
}
return nil
}
// Defines a proto annotation that describes a string field that refers to
// an API resource.
type ResourceReference struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The resource type that the annotated field references.
//
// Example:
//
// message Subscription {
// string topic = 2 [(google.api.resource_reference) = {
// type: "pubsub.googleapis.com/Topic"
// }];
// }
//
// Occasionally, a field may reference an arbitrary resource. In this case,
// APIs use the special value * in their resource reference.
//
// Example:
//
// message GetIamPolicyRequest {
// string resource = 2 [(google.api.resource_reference) = {
// type: "*"
// }];
// }
Type string `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
// The resource type of a child collection that the annotated field
// references. This is useful for annotating the `parent` field that
// doesn't have a fixed resource type.
//
// Example:
//
// message ListLogEntriesRequest {
// string parent = 1 [(google.api.resource_reference) = {
// child_type: "logging.googleapis.com/LogEntry"
// };
// }
ChildType string `protobuf:"bytes,2,opt,name=child_type,json=childType,proto3" json:"child_type,omitempty"`
}
func (x *ResourceReference) Reset() {
*x = ResourceReference{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_resource_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *ResourceReference) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*ResourceReference) ProtoMessage() {}
func (x *ResourceReference) ProtoReflect() protoreflect.Message {
mi := &file_google_api_resource_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use ResourceReference.ProtoReflect.Descriptor instead.
func (*ResourceReference) Descriptor() ([]byte, []int) {
return file_google_api_resource_proto_rawDescGZIP(), []int{1}
}
func (x *ResourceReference) GetType() string {
if x != nil {
return x.Type
}
return ""
}
func (x *ResourceReference) GetChildType() string {
if x != nil {
return x.ChildType
}
return ""
}
var file_google_api_resource_proto_extTypes = []protoimpl.ExtensionInfo{
{
ExtendedType: (*descriptorpb.FieldOptions)(nil),
ExtensionType: (*ResourceReference)(nil),
Field: 1055,
Name: "google.api.resource_reference",
Tag: "bytes,1055,opt,name=resource_reference",
Filename: "google/api/resource.proto",
},
{
ExtendedType: (*descriptorpb.FileOptions)(nil),
ExtensionType: ([]*ResourceDescriptor)(nil),
Field: 1053,
Name: "google.api.resource_definition",
Tag: "bytes,1053,rep,name=resource_definition",
Filename: "google/api/resource.proto",
},
{
ExtendedType: (*descriptorpb.MessageOptions)(nil),
ExtensionType: (*ResourceDescriptor)(nil),
Field: 1053,
Name: "google.api.resource",
Tag: "bytes,1053,opt,name=resource",
Filename: "google/api/resource.proto",
},
}
// Extension fields to descriptorpb.FieldOptions.
var (
// An annotation that describes a resource reference, see
// [ResourceReference][].
//
// optional google.api.ResourceReference resource_reference = 1055;
E_ResourceReference = &file_google_api_resource_proto_extTypes[0]
)
// Extension fields to descriptorpb.FileOptions.
var (
// An annotation that describes a resource definition without a corresponding
// message; see [ResourceDescriptor][].
//
// repeated google.api.ResourceDescriptor resource_definition = 1053;
E_ResourceDefinition = &file_google_api_resource_proto_extTypes[1]
)
// Extension fields to descriptorpb.MessageOptions.
var (
// An annotation that describes a resource definition, see
// [ResourceDescriptor][].
//
// optional google.api.ResourceDescriptor resource = 1053;
E_Resource = &file_google_api_resource_proto_extTypes[2]
)
var File_google_api_resource_proto protoreflect.FileDescriptor
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}
var (
file_google_api_resource_proto_rawDescOnce sync.Once
file_google_api_resource_proto_rawDescData = file_google_api_resource_proto_rawDesc
)
func file_google_api_resource_proto_rawDescGZIP() []byte {
file_google_api_resource_proto_rawDescOnce.Do(func() {
file_google_api_resource_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_api_resource_proto_rawDescData)
})
return file_google_api_resource_proto_rawDescData
}
var file_google_api_resource_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
var file_google_api_resource_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
var file_google_api_resource_proto_goTypes = []interface{}{
(ResourceDescriptor_History)(0), // 0: google.api.ResourceDescriptor.History
(ResourceDescriptor_Style)(0), // 1: google.api.ResourceDescriptor.Style
(*ResourceDescriptor)(nil), // 2: google.api.ResourceDescriptor
(*ResourceReference)(nil), // 3: google.api.ResourceReference
(*descriptorpb.FieldOptions)(nil), // 4: google.protobuf.FieldOptions
(*descriptorpb.FileOptions)(nil), // 5: google.protobuf.FileOptions
(*descriptorpb.MessageOptions)(nil), // 6: google.protobuf.MessageOptions
}
var file_google_api_resource_proto_depIdxs = []int32{
0, // 0: google.api.ResourceDescriptor.history:type_name -> google.api.ResourceDescriptor.History
1, // 1: google.api.ResourceDescriptor.style:type_name -> google.api.ResourceDescriptor.Style
4, // 2: google.api.resource_reference:extendee -> google.protobuf.FieldOptions
5, // 3: google.api.resource_definition:extendee -> google.protobuf.FileOptions
6, // 4: google.api.resource:extendee -> google.protobuf.MessageOptions
3, // 5: google.api.resource_reference:type_name -> google.api.ResourceReference
2, // 6: google.api.resource_definition:type_name -> google.api.ResourceDescriptor
2, // 7: google.api.resource:type_name -> google.api.ResourceDescriptor
8, // [8:8] is the sub-list for method output_type
8, // [8:8] is the sub-list for method input_type
5, // [5:8] is the sub-list for extension type_name
2, // [2:5] is the sub-list for extension extendee
0, // [0:2] is the sub-list for field type_name
}
func init() { file_google_api_resource_proto_init() }
func file_google_api_resource_proto_init() {
if File_google_api_resource_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_google_api_resource_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*ResourceDescriptor); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_resource_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*ResourceReference); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_api_resource_proto_rawDesc,
NumEnums: 2,
NumMessages: 2,
NumExtensions: 3,
NumServices: 0,
},
GoTypes: file_google_api_resource_proto_goTypes,
DependencyIndexes: file_google_api_resource_proto_depIdxs,
EnumInfos: file_google_api_resource_proto_enumTypes,
MessageInfos: file_google_api_resource_proto_msgTypes,
ExtensionInfos: file_google_api_resource_proto_extTypes,
}.Build()
File_google_api_resource_proto = out.File
file_google_api_resource_proto_rawDesc = nil
file_google_api_resource_proto_goTypes = nil
file_google_api_resource_proto_depIdxs = nil
}

693
e2e/vendor/google.golang.org/genproto/googleapis/api/annotations/routing.pb.go generated vendored Normal file
View File

@ -0,0 +1,693 @@
// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.24.4
// source: google/api/routing.proto
package annotations
import (
reflect "reflect"
sync "sync"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
descriptorpb "google.golang.org/protobuf/types/descriptorpb"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// Specifies the routing information that should be sent along with the request
// in the form of routing header.
// **NOTE:** All service configuration rules follow the "last one wins" order.
//
// The examples below will apply to an RPC which has the following request type:
//
// Message Definition:
//
// message Request {
// // The name of the Table
// // Values can be of the following formats:
// // - `projects/<project>/tables/<table>`
// // - `projects/<project>/instances/<instance>/tables/<table>`
// // - `region/<region>/zones/<zone>/tables/<table>`
// string table_name = 1;
//
// // This value specifies routing for replication.
// // It can be in the following formats:
// // - `profiles/<profile_id>`
// // - a legacy `profile_id` that can be any string
// string app_profile_id = 2;
// }
//
// Example message:
//
// {
// table_name: projects/proj_foo/instances/instance_bar/table/table_baz,
// app_profile_id: profiles/prof_qux
// }
//
// The routing header consists of one or multiple key-value pairs. Every key
// and value must be percent-encoded, and joined together in the format of
// `key1=value1&key2=value2`.
// In the examples below I am skipping the percent-encoding for readablity.
//
// # Example 1
//
// Extracting a field from the request to put into the routing header
// unchanged, with the key equal to the field name.
//
// annotation:
//
// option (google.api.routing) = {
// // Take the `app_profile_id`.
// routing_parameters {
// field: "app_profile_id"
// }
// };
//
// result:
//
// x-goog-request-params: app_profile_id=profiles/prof_qux
//
// # Example 2
//
// Extracting a field from the request to put into the routing header
// unchanged, with the key different from the field name.
//
// annotation:
//
// option (google.api.routing) = {
// // Take the `app_profile_id`, but name it `routing_id` in the header.
// routing_parameters {
// field: "app_profile_id"
// path_template: "{routing_id=**}"
// }
// };
//
// result:
//
// x-goog-request-params: routing_id=profiles/prof_qux
//
// # Example 3
//
// Extracting a field from the request to put into the routing
// header, while matching a path template syntax on the field's value.
//
// NB: it is more useful to send nothing than to send garbage for the purpose
// of dynamic routing, since garbage pollutes cache. Thus the matching.
//
// # Sub-example 3a
//
// The field matches the template.
//
// annotation:
//
// option (google.api.routing) = {
// // Take the `table_name`, if it's well-formed (with project-based
// // syntax).
// routing_parameters {
// field: "table_name"
// path_template: "{table_name=projects/*/instances/*/**}"
// }
// };
//
// result:
//
// x-goog-request-params:
// table_name=projects/proj_foo/instances/instance_bar/table/table_baz
//
// # Sub-example 3b
//
// The field does not match the template.
//
// annotation:
//
// option (google.api.routing) = {
// // Take the `table_name`, if it's well-formed (with region-based
// // syntax).
// routing_parameters {
// field: "table_name"
// path_template: "{table_name=regions/*/zones/*/**}"
// }
// };
//
// result:
//
// <no routing header will be sent>
//
// # Sub-example 3c
//
// Multiple alternative conflictingly named path templates are
// specified. The one that matches is used to construct the header.
//
// annotation:
//
// option (google.api.routing) = {
// // Take the `table_name`, if it's well-formed, whether
// // using the region- or projects-based syntax.
//
// routing_parameters {
// field: "table_name"
// path_template: "{table_name=regions/*/zones/*/**}"
// }
// routing_parameters {
// field: "table_name"
// path_template: "{table_name=projects/*/instances/*/**}"
// }
// };
//
// result:
//
// x-goog-request-params:
// table_name=projects/proj_foo/instances/instance_bar/table/table_baz
//
// # Example 4
//
// Extracting a single routing header key-value pair by matching a
// template syntax on (a part of) a single request field.
//
// annotation:
//
// option (google.api.routing) = {
// // Take just the project id from the `table_name` field.
// routing_parameters {
// field: "table_name"
// path_template: "{routing_id=projects/*}/**"
// }
// };
//
// result:
//
// x-goog-request-params: routing_id=projects/proj_foo
//
// # Example 5
//
// Extracting a single routing header key-value pair by matching
// several conflictingly named path templates on (parts of) a single request
// field. The last template to match "wins" the conflict.
//
// annotation:
//
// option (google.api.routing) = {
// // If the `table_name` does not have instances information,
// // take just the project id for routing.
// // Otherwise take project + instance.
//
// routing_parameters {
// field: "table_name"
// path_template: "{routing_id=projects/*}/**"
// }
// routing_parameters {
// field: "table_name"
// path_template: "{routing_id=projects/*/instances/*}/**"
// }
// };
//
// result:
//
// x-goog-request-params:
// routing_id=projects/proj_foo/instances/instance_bar
//
// # Example 6
//
// Extracting multiple routing header key-value pairs by matching
// several non-conflicting path templates on (parts of) a single request field.
//
// # Sub-example 6a
//
// Make the templates strict, so that if the `table_name` does not
// have an instance information, nothing is sent.
//
// annotation:
//
// option (google.api.routing) = {
// // The routing code needs two keys instead of one composite
// // but works only for the tables with the "project-instance" name
// // syntax.
//
// routing_parameters {
// field: "table_name"
// path_template: "{project_id=projects/*}/instances/*/**"
// }
// routing_parameters {
// field: "table_name"
// path_template: "projects/*/{instance_id=instances/*}/**"
// }
// };
//
// result:
//
// x-goog-request-params:
// project_id=projects/proj_foo&instance_id=instances/instance_bar
//
// # Sub-example 6b
//
// Make the templates loose, so that if the `table_name` does not
// have an instance information, just the project id part is sent.
//
// annotation:
//
// option (google.api.routing) = {
// // The routing code wants two keys instead of one composite
// // but will work with just the `project_id` for tables without
// // an instance in the `table_name`.
//
// routing_parameters {
// field: "table_name"
// path_template: "{project_id=projects/*}/**"
// }
// routing_parameters {
// field: "table_name"
// path_template: "projects/*/{instance_id=instances/*}/**"
// }
// };
//
// result (is the same as 6a for our example message because it has the instance
// information):
//
// x-goog-request-params:
// project_id=projects/proj_foo&instance_id=instances/instance_bar
//
// # Example 7
//
// Extracting multiple routing header key-value pairs by matching
// several path templates on multiple request fields.
//
// NB: note that here there is no way to specify sending nothing if one of the
// fields does not match its template. E.g. if the `table_name` is in the wrong
// format, the `project_id` will not be sent, but the `routing_id` will be.
// The backend routing code has to be aware of that and be prepared to not
// receive a full complement of keys if it expects multiple.
//
// annotation:
//
// option (google.api.routing) = {
// // The routing needs both `project_id` and `routing_id`
// // (from the `app_profile_id` field) for routing.
//
// routing_parameters {
// field: "table_name"
// path_template: "{project_id=projects/*}/**"
// }
// routing_parameters {
// field: "app_profile_id"
// path_template: "{routing_id=**}"
// }
// };
//
// result:
//
// x-goog-request-params:
// project_id=projects/proj_foo&routing_id=profiles/prof_qux
//
// # Example 8
//
// Extracting a single routing header key-value pair by matching
// several conflictingly named path templates on several request fields. The
// last template to match "wins" the conflict.
//
// annotation:
//
// option (google.api.routing) = {
// // The `routing_id` can be a project id or a region id depending on
// // the table name format, but only if the `app_profile_id` is not set.
// // If `app_profile_id` is set it should be used instead.
//
// routing_parameters {
// field: "table_name"
// path_template: "{routing_id=projects/*}/**"
// }
// routing_parameters {
// field: "table_name"
// path_template: "{routing_id=regions/*}/**"
// }
// routing_parameters {
// field: "app_profile_id"
// path_template: "{routing_id=**}"
// }
// };
//
// result:
//
// x-goog-request-params: routing_id=profiles/prof_qux
//
// # Example 9
//
// Bringing it all together.
//
// annotation:
//
// option (google.api.routing) = {
// // For routing both `table_location` and a `routing_id` are needed.
// //
// // table_location can be either an instance id or a region+zone id.
// //
// // For `routing_id`, take the value of `app_profile_id`
// // - If it's in the format `profiles/<profile_id>`, send
// // just the `<profile_id>` part.
// // - If it's any other literal, send it as is.
// // If the `app_profile_id` is empty, and the `table_name` starts with
// // the project_id, send that instead.
//
// routing_parameters {
// field: "table_name"
// path_template: "projects/*/{table_location=instances/*}/tables/*"
// }
// routing_parameters {
// field: "table_name"
// path_template: "{table_location=regions/*/zones/*}/tables/*"
// }
// routing_parameters {
// field: "table_name"
// path_template: "{routing_id=projects/*}/**"
// }
// routing_parameters {
// field: "app_profile_id"
// path_template: "{routing_id=**}"
// }
// routing_parameters {
// field: "app_profile_id"
// path_template: "profiles/{routing_id=*}"
// }
// };
//
// result:
//
// x-goog-request-params:
// table_location=instances/instance_bar&routing_id=prof_qux
type RoutingRule struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// A collection of Routing Parameter specifications.
// **NOTE:** If multiple Routing Parameters describe the same key
// (via the `path_template` field or via the `field` field when
// `path_template` is not provided), "last one wins" rule
// determines which Parameter gets used.
// See the examples for more details.
RoutingParameters []*RoutingParameter `protobuf:"bytes,2,rep,name=routing_parameters,json=routingParameters,proto3" json:"routing_parameters,omitempty"`
}
func (x *RoutingRule) Reset() {
*x = RoutingRule{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_routing_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *RoutingRule) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*RoutingRule) ProtoMessage() {}
func (x *RoutingRule) ProtoReflect() protoreflect.Message {
mi := &file_google_api_routing_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use RoutingRule.ProtoReflect.Descriptor instead.
func (*RoutingRule) Descriptor() ([]byte, []int) {
return file_google_api_routing_proto_rawDescGZIP(), []int{0}
}
func (x *RoutingRule) GetRoutingParameters() []*RoutingParameter {
if x != nil {
return x.RoutingParameters
}
return nil
}
// A projection from an input message to the GRPC or REST header.
type RoutingParameter struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// A request field to extract the header key-value pair from.
Field string `protobuf:"bytes,1,opt,name=field,proto3" json:"field,omitempty"`
// A pattern matching the key-value field. Optional.
// If not specified, the whole field specified in the `field` field will be
// taken as value, and its name used as key. If specified, it MUST contain
// exactly one named segment (along with any number of unnamed segments) The
// pattern will be matched over the field specified in the `field` field, then
// if the match is successful:
// - the name of the single named segment will be used as a header name,
// - the match value of the segment will be used as a header value;
// if the match is NOT successful, nothing will be sent.
//
// Example:
//
// -- This is a field in the request message
// | that the header value will be extracted from.
// |
// | -- This is the key name in the
// | | routing header.
// V |
// field: "table_name" v
// path_template: "projects/*/{table_location=instances/*}/tables/*"
// ^ ^
// | |
// In the {} brackets is the pattern that -- |
// specifies what to extract from the |
// field as a value to be sent. |
// |
// The string in the field must match the whole pattern --
// before brackets, inside brackets, after brackets.
//
// When looking at this specific example, we can see that:
// - A key-value pair with the key `table_location`
// and the value matching `instances/*` should be added
// to the x-goog-request-params routing header.
// - The value is extracted from the request message's `table_name` field
// if it matches the full pattern specified:
// `projects/*/instances/*/tables/*`.
//
// **NB:** If the `path_template` field is not provided, the key name is
// equal to the field name, and the whole field should be sent as a value.
// This makes the pattern for the field and the value functionally equivalent
// to `**`, and the configuration
//
// {
// field: "table_name"
// }
//
// is a functionally equivalent shorthand to:
//
// {
// field: "table_name"
// path_template: "{table_name=**}"
// }
//
// See Example 1 for more details.
PathTemplate string `protobuf:"bytes,2,opt,name=path_template,json=pathTemplate,proto3" json:"path_template,omitempty"`
}
func (x *RoutingParameter) Reset() {
*x = RoutingParameter{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_routing_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *RoutingParameter) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*RoutingParameter) ProtoMessage() {}
func (x *RoutingParameter) ProtoReflect() protoreflect.Message {
mi := &file_google_api_routing_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use RoutingParameter.ProtoReflect.Descriptor instead.
func (*RoutingParameter) Descriptor() ([]byte, []int) {
return file_google_api_routing_proto_rawDescGZIP(), []int{1}
}
func (x *RoutingParameter) GetField() string {
if x != nil {
return x.Field
}
return ""
}
func (x *RoutingParameter) GetPathTemplate() string {
if x != nil {
return x.PathTemplate
}
return ""
}
var file_google_api_routing_proto_extTypes = []protoimpl.ExtensionInfo{
{
ExtendedType: (*descriptorpb.MethodOptions)(nil),
ExtensionType: (*RoutingRule)(nil),
Field: 72295729,
Name: "google.api.routing",
Tag: "bytes,72295729,opt,name=routing",
Filename: "google/api/routing.proto",
},
}
// Extension fields to descriptorpb.MethodOptions.
var (
// See RoutingRule.
//
// optional google.api.RoutingRule routing = 72295729;
E_Routing = &file_google_api_routing_proto_extTypes[0]
)
var File_google_api_routing_proto protoreflect.FileDescriptor
var file_google_api_routing_proto_rawDesc = []byte{
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}
var (
file_google_api_routing_proto_rawDescOnce sync.Once
file_google_api_routing_proto_rawDescData = file_google_api_routing_proto_rawDesc
)
func file_google_api_routing_proto_rawDescGZIP() []byte {
file_google_api_routing_proto_rawDescOnce.Do(func() {
file_google_api_routing_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_api_routing_proto_rawDescData)
})
return file_google_api_routing_proto_rawDescData
}
var file_google_api_routing_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
var file_google_api_routing_proto_goTypes = []interface{}{
(*RoutingRule)(nil), // 0: google.api.RoutingRule
(*RoutingParameter)(nil), // 1: google.api.RoutingParameter
(*descriptorpb.MethodOptions)(nil), // 2: google.protobuf.MethodOptions
}
var file_google_api_routing_proto_depIdxs = []int32{
1, // 0: google.api.RoutingRule.routing_parameters:type_name -> google.api.RoutingParameter
2, // 1: google.api.routing:extendee -> google.protobuf.MethodOptions
0, // 2: google.api.routing:type_name -> google.api.RoutingRule
3, // [3:3] is the sub-list for method output_type
3, // [3:3] is the sub-list for method input_type
2, // [2:3] is the sub-list for extension type_name
1, // [1:2] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
}
func init() { file_google_api_routing_proto_init() }
func file_google_api_routing_proto_init() {
if File_google_api_routing_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_google_api_routing_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*RoutingRule); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_routing_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*RoutingParameter); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_api_routing_proto_rawDesc,
NumEnums: 0,
NumMessages: 2,
NumExtensions: 1,
NumServices: 0,
},
GoTypes: file_google_api_routing_proto_goTypes,
DependencyIndexes: file_google_api_routing_proto_depIdxs,
MessageInfos: file_google_api_routing_proto_msgTypes,
ExtensionInfos: file_google_api_routing_proto_extTypes,
}.Build()
File_google_api_routing_proto = out.File
file_google_api_routing_proto_rawDesc = nil
file_google_api_routing_proto_goTypes = nil
file_google_api_routing_proto_depIdxs = nil
}

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e2e/vendor/google.golang.org/genproto/googleapis/api/expr/v1alpha1/checked.pb.go generated vendored Normal file
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@ -0,0 +1,580 @@
// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.24.4
// source: google/api/expr/v1alpha1/eval.proto
package expr
import (
reflect "reflect"
sync "sync"
status "google.golang.org/genproto/googleapis/rpc/status"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// The state of an evaluation.
//
// Can represent an inital, partial, or completed state of evaluation.
type EvalState struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The unique values referenced in this message.
Values []*ExprValue `protobuf:"bytes,1,rep,name=values,proto3" json:"values,omitempty"`
// An ordered list of results.
//
// Tracks the flow of evaluation through the expression.
// May be sparse.
Results []*EvalState_Result `protobuf:"bytes,3,rep,name=results,proto3" json:"results,omitempty"`
}
func (x *EvalState) Reset() {
*x = EvalState{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_expr_v1alpha1_eval_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *EvalState) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*EvalState) ProtoMessage() {}
func (x *EvalState) ProtoReflect() protoreflect.Message {
mi := &file_google_api_expr_v1alpha1_eval_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use EvalState.ProtoReflect.Descriptor instead.
func (*EvalState) Descriptor() ([]byte, []int) {
return file_google_api_expr_v1alpha1_eval_proto_rawDescGZIP(), []int{0}
}
func (x *EvalState) GetValues() []*ExprValue {
if x != nil {
return x.Values
}
return nil
}
func (x *EvalState) GetResults() []*EvalState_Result {
if x != nil {
return x.Results
}
return nil
}
// The value of an evaluated expression.
type ExprValue struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// An expression can resolve to a value, error or unknown.
//
// Types that are assignable to Kind:
//
// *ExprValue_Value
// *ExprValue_Error
// *ExprValue_Unknown
Kind isExprValue_Kind `protobuf_oneof:"kind"`
}
func (x *ExprValue) Reset() {
*x = ExprValue{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_expr_v1alpha1_eval_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *ExprValue) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*ExprValue) ProtoMessage() {}
func (x *ExprValue) ProtoReflect() protoreflect.Message {
mi := &file_google_api_expr_v1alpha1_eval_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use ExprValue.ProtoReflect.Descriptor instead.
func (*ExprValue) Descriptor() ([]byte, []int) {
return file_google_api_expr_v1alpha1_eval_proto_rawDescGZIP(), []int{1}
}
func (m *ExprValue) GetKind() isExprValue_Kind {
if m != nil {
return m.Kind
}
return nil
}
func (x *ExprValue) GetValue() *Value {
if x, ok := x.GetKind().(*ExprValue_Value); ok {
return x.Value
}
return nil
}
func (x *ExprValue) GetError() *ErrorSet {
if x, ok := x.GetKind().(*ExprValue_Error); ok {
return x.Error
}
return nil
}
func (x *ExprValue) GetUnknown() *UnknownSet {
if x, ok := x.GetKind().(*ExprValue_Unknown); ok {
return x.Unknown
}
return nil
}
type isExprValue_Kind interface {
isExprValue_Kind()
}
type ExprValue_Value struct {
// A concrete value.
Value *Value `protobuf:"bytes,1,opt,name=value,proto3,oneof"`
}
type ExprValue_Error struct {
// The set of errors in the critical path of evalution.
//
// Only errors in the critical path are included. For example,
// `(<error1> || true) && <error2>` will only result in `<error2>`,
// while `<error1> || <error2>` will result in both `<error1>` and
// `<error2>`.
//
// Errors cause by the presence of other errors are not included in the
// set. For example `<error1>.foo`, `foo(<error1>)`, and `<error1> + 1` will
// only result in `<error1>`.
//
// Multiple errors *might* be included when evaluation could result
// in different errors. For example `<error1> + <error2>` and
// `foo(<error1>, <error2>)` may result in `<error1>`, `<error2>` or both.
// The exact subset of errors included for this case is unspecified and
// depends on the implementation details of the evaluator.
Error *ErrorSet `protobuf:"bytes,2,opt,name=error,proto3,oneof"`
}
type ExprValue_Unknown struct {
// The set of unknowns in the critical path of evaluation.
//
// Unknown behaves identically to Error with regards to propagation.
// Specifically, only unknowns in the critical path are included, unknowns
// caused by the presence of other unknowns are not included, and multiple
// unknowns *might* be included included when evaluation could result in
// different unknowns. For example:
//
// (<unknown[1]> || true) && <unknown[2]> -> <unknown[2]>
// <unknown[1]> || <unknown[2]> -> <unknown[1,2]>
// <unknown[1]>.foo -> <unknown[1]>
// foo(<unknown[1]>) -> <unknown[1]>
// <unknown[1]> + <unknown[2]> -> <unknown[1]> or <unknown[2[>
//
// Unknown takes precidence over Error in cases where a `Value` can short
// circuit the result:
//
// <error> || <unknown> -> <unknown>
// <error> && <unknown> -> <unknown>
//
// Errors take precidence in all other cases:
//
// <unknown> + <error> -> <error>
// foo(<unknown>, <error>) -> <error>
Unknown *UnknownSet `protobuf:"bytes,3,opt,name=unknown,proto3,oneof"`
}
func (*ExprValue_Value) isExprValue_Kind() {}
func (*ExprValue_Error) isExprValue_Kind() {}
func (*ExprValue_Unknown) isExprValue_Kind() {}
// A set of errors.
//
// The errors included depend on the context. See `ExprValue.error`.
type ErrorSet struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The errors in the set.
Errors []*status.Status `protobuf:"bytes,1,rep,name=errors,proto3" json:"errors,omitempty"`
}
func (x *ErrorSet) Reset() {
*x = ErrorSet{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_expr_v1alpha1_eval_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *ErrorSet) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*ErrorSet) ProtoMessage() {}
func (x *ErrorSet) ProtoReflect() protoreflect.Message {
mi := &file_google_api_expr_v1alpha1_eval_proto_msgTypes[2]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use ErrorSet.ProtoReflect.Descriptor instead.
func (*ErrorSet) Descriptor() ([]byte, []int) {
return file_google_api_expr_v1alpha1_eval_proto_rawDescGZIP(), []int{2}
}
func (x *ErrorSet) GetErrors() []*status.Status {
if x != nil {
return x.Errors
}
return nil
}
// A set of expressions for which the value is unknown.
//
// The unknowns included depend on the context. See `ExprValue.unknown`.
type UnknownSet struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The ids of the expressions with unknown values.
Exprs []int64 `protobuf:"varint,1,rep,packed,name=exprs,proto3" json:"exprs,omitempty"`
}
func (x *UnknownSet) Reset() {
*x = UnknownSet{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_expr_v1alpha1_eval_proto_msgTypes[3]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *UnknownSet) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*UnknownSet) ProtoMessage() {}
func (x *UnknownSet) ProtoReflect() protoreflect.Message {
mi := &file_google_api_expr_v1alpha1_eval_proto_msgTypes[3]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use UnknownSet.ProtoReflect.Descriptor instead.
func (*UnknownSet) Descriptor() ([]byte, []int) {
return file_google_api_expr_v1alpha1_eval_proto_rawDescGZIP(), []int{3}
}
func (x *UnknownSet) GetExprs() []int64 {
if x != nil {
return x.Exprs
}
return nil
}
// A single evalution result.
type EvalState_Result struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The id of the expression this result if for.
Expr int64 `protobuf:"varint,1,opt,name=expr,proto3" json:"expr,omitempty"`
// The index in `values` of the resulting value.
Value int64 `protobuf:"varint,2,opt,name=value,proto3" json:"value,omitempty"`
}
func (x *EvalState_Result) Reset() {
*x = EvalState_Result{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_expr_v1alpha1_eval_proto_msgTypes[4]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *EvalState_Result) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*EvalState_Result) ProtoMessage() {}
func (x *EvalState_Result) ProtoReflect() protoreflect.Message {
mi := &file_google_api_expr_v1alpha1_eval_proto_msgTypes[4]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use EvalState_Result.ProtoReflect.Descriptor instead.
func (*EvalState_Result) Descriptor() ([]byte, []int) {
return file_google_api_expr_v1alpha1_eval_proto_rawDescGZIP(), []int{0, 0}
}
func (x *EvalState_Result) GetExpr() int64 {
if x != nil {
return x.Expr
}
return 0
}
func (x *EvalState_Result) GetValue() int64 {
if x != nil {
return x.Value
}
return 0
}
var File_google_api_expr_v1alpha1_eval_proto protoreflect.FileDescriptor
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}
var (
file_google_api_expr_v1alpha1_eval_proto_rawDescOnce sync.Once
file_google_api_expr_v1alpha1_eval_proto_rawDescData = file_google_api_expr_v1alpha1_eval_proto_rawDesc
)
func file_google_api_expr_v1alpha1_eval_proto_rawDescGZIP() []byte {
file_google_api_expr_v1alpha1_eval_proto_rawDescOnce.Do(func() {
file_google_api_expr_v1alpha1_eval_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_api_expr_v1alpha1_eval_proto_rawDescData)
})
return file_google_api_expr_v1alpha1_eval_proto_rawDescData
}
var file_google_api_expr_v1alpha1_eval_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
var file_google_api_expr_v1alpha1_eval_proto_goTypes = []interface{}{
(*EvalState)(nil), // 0: google.api.expr.v1alpha1.EvalState
(*ExprValue)(nil), // 1: google.api.expr.v1alpha1.ExprValue
(*ErrorSet)(nil), // 2: google.api.expr.v1alpha1.ErrorSet
(*UnknownSet)(nil), // 3: google.api.expr.v1alpha1.UnknownSet
(*EvalState_Result)(nil), // 4: google.api.expr.v1alpha1.EvalState.Result
(*Value)(nil), // 5: google.api.expr.v1alpha1.Value
(*status.Status)(nil), // 6: google.rpc.Status
}
var file_google_api_expr_v1alpha1_eval_proto_depIdxs = []int32{
1, // 0: google.api.expr.v1alpha1.EvalState.values:type_name -> google.api.expr.v1alpha1.ExprValue
4, // 1: google.api.expr.v1alpha1.EvalState.results:type_name -> google.api.expr.v1alpha1.EvalState.Result
5, // 2: google.api.expr.v1alpha1.ExprValue.value:type_name -> google.api.expr.v1alpha1.Value
2, // 3: google.api.expr.v1alpha1.ExprValue.error:type_name -> google.api.expr.v1alpha1.ErrorSet
3, // 4: google.api.expr.v1alpha1.ExprValue.unknown:type_name -> google.api.expr.v1alpha1.UnknownSet
6, // 5: google.api.expr.v1alpha1.ErrorSet.errors:type_name -> google.rpc.Status
6, // [6:6] is the sub-list for method output_type
6, // [6:6] is the sub-list for method input_type
6, // [6:6] is the sub-list for extension type_name
6, // [6:6] is the sub-list for extension extendee
0, // [0:6] is the sub-list for field type_name
}
func init() { file_google_api_expr_v1alpha1_eval_proto_init() }
func file_google_api_expr_v1alpha1_eval_proto_init() {
if File_google_api_expr_v1alpha1_eval_proto != nil {
return
}
file_google_api_expr_v1alpha1_value_proto_init()
if !protoimpl.UnsafeEnabled {
file_google_api_expr_v1alpha1_eval_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*EvalState); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_expr_v1alpha1_eval_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*ExprValue); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_expr_v1alpha1_eval_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*ErrorSet); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_expr_v1alpha1_eval_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*UnknownSet); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_expr_v1alpha1_eval_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*EvalState_Result); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
file_google_api_expr_v1alpha1_eval_proto_msgTypes[1].OneofWrappers = []interface{}{
(*ExprValue_Value)(nil),
(*ExprValue_Error)(nil),
(*ExprValue_Unknown)(nil),
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_api_expr_v1alpha1_eval_proto_rawDesc,
NumEnums: 0,
NumMessages: 5,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_google_api_expr_v1alpha1_eval_proto_goTypes,
DependencyIndexes: file_google_api_expr_v1alpha1_eval_proto_depIdxs,
MessageInfos: file_google_api_expr_v1alpha1_eval_proto_msgTypes,
}.Build()
File_google_api_expr_v1alpha1_eval_proto = out.File
file_google_api_expr_v1alpha1_eval_proto_rawDesc = nil
file_google_api_expr_v1alpha1_eval_proto_goTypes = nil
file_google_api_expr_v1alpha1_eval_proto_depIdxs = nil
}

275
e2e/vendor/google.golang.org/genproto/googleapis/api/expr/v1alpha1/explain.pb.go generated vendored Normal file
View File

@ -0,0 +1,275 @@
// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.24.4
// source: google/api/expr/v1alpha1/explain.proto
package expr
import (
reflect "reflect"
sync "sync"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// Values of intermediate expressions produced when evaluating expression.
// Deprecated, use `EvalState` instead.
//
// Deprecated: Do not use.
type Explain struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// All of the observed values.
//
// The field value_index is an index in the values list.
// Separating values from steps is needed to remove redundant values.
Values []*Value `protobuf:"bytes,1,rep,name=values,proto3" json:"values,omitempty"`
// List of steps.
//
// Repeated evaluations of the same expression generate new ExprStep
// instances. The order of such ExprStep instances matches the order of
// elements returned by Comprehension.iter_range.
ExprSteps []*Explain_ExprStep `protobuf:"bytes,2,rep,name=expr_steps,json=exprSteps,proto3" json:"expr_steps,omitempty"`
}
func (x *Explain) Reset() {
*x = Explain{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_expr_v1alpha1_explain_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Explain) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Explain) ProtoMessage() {}
func (x *Explain) ProtoReflect() protoreflect.Message {
mi := &file_google_api_expr_v1alpha1_explain_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Explain.ProtoReflect.Descriptor instead.
func (*Explain) Descriptor() ([]byte, []int) {
return file_google_api_expr_v1alpha1_explain_proto_rawDescGZIP(), []int{0}
}
func (x *Explain) GetValues() []*Value {
if x != nil {
return x.Values
}
return nil
}
func (x *Explain) GetExprSteps() []*Explain_ExprStep {
if x != nil {
return x.ExprSteps
}
return nil
}
// ID and value index of one step.
type Explain_ExprStep struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// ID of corresponding Expr node.
Id int64 `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
// Index of the value in the values list.
ValueIndex int32 `protobuf:"varint,2,opt,name=value_index,json=valueIndex,proto3" json:"value_index,omitempty"`
}
func (x *Explain_ExprStep) Reset() {
*x = Explain_ExprStep{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_expr_v1alpha1_explain_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Explain_ExprStep) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Explain_ExprStep) ProtoMessage() {}
func (x *Explain_ExprStep) ProtoReflect() protoreflect.Message {
mi := &file_google_api_expr_v1alpha1_explain_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Explain_ExprStep.ProtoReflect.Descriptor instead.
func (*Explain_ExprStep) Descriptor() ([]byte, []int) {
return file_google_api_expr_v1alpha1_explain_proto_rawDescGZIP(), []int{0, 0}
}
func (x *Explain_ExprStep) GetId() int64 {
if x != nil {
return x.Id
}
return 0
}
func (x *Explain_ExprStep) GetValueIndex() int32 {
if x != nil {
return x.ValueIndex
}
return 0
}
var File_google_api_expr_v1alpha1_explain_proto protoreflect.FileDescriptor
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var (
file_google_api_expr_v1alpha1_explain_proto_rawDescOnce sync.Once
file_google_api_expr_v1alpha1_explain_proto_rawDescData = file_google_api_expr_v1alpha1_explain_proto_rawDesc
)
func file_google_api_expr_v1alpha1_explain_proto_rawDescGZIP() []byte {
file_google_api_expr_v1alpha1_explain_proto_rawDescOnce.Do(func() {
file_google_api_expr_v1alpha1_explain_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_api_expr_v1alpha1_explain_proto_rawDescData)
})
return file_google_api_expr_v1alpha1_explain_proto_rawDescData
}
var file_google_api_expr_v1alpha1_explain_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
var file_google_api_expr_v1alpha1_explain_proto_goTypes = []interface{}{
(*Explain)(nil), // 0: google.api.expr.v1alpha1.Explain
(*Explain_ExprStep)(nil), // 1: google.api.expr.v1alpha1.Explain.ExprStep
(*Value)(nil), // 2: google.api.expr.v1alpha1.Value
}
var file_google_api_expr_v1alpha1_explain_proto_depIdxs = []int32{
2, // 0: google.api.expr.v1alpha1.Explain.values:type_name -> google.api.expr.v1alpha1.Value
1, // 1: google.api.expr.v1alpha1.Explain.expr_steps:type_name -> google.api.expr.v1alpha1.Explain.ExprStep
2, // [2:2] is the sub-list for method output_type
2, // [2:2] is the sub-list for method input_type
2, // [2:2] is the sub-list for extension type_name
2, // [2:2] is the sub-list for extension extendee
0, // [0:2] is the sub-list for field type_name
}
func init() { file_google_api_expr_v1alpha1_explain_proto_init() }
func file_google_api_expr_v1alpha1_explain_proto_init() {
if File_google_api_expr_v1alpha1_explain_proto != nil {
return
}
file_google_api_expr_v1alpha1_value_proto_init()
if !protoimpl.UnsafeEnabled {
file_google_api_expr_v1alpha1_explain_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Explain); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_expr_v1alpha1_explain_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Explain_ExprStep); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_api_expr_v1alpha1_explain_proto_rawDesc,
NumEnums: 0,
NumMessages: 2,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_google_api_expr_v1alpha1_explain_proto_goTypes,
DependencyIndexes: file_google_api_expr_v1alpha1_explain_proto_depIdxs,
MessageInfos: file_google_api_expr_v1alpha1_explain_proto_msgTypes,
}.Build()
File_google_api_expr_v1alpha1_explain_proto = out.File
file_google_api_expr_v1alpha1_explain_proto_rawDesc = nil
file_google_api_expr_v1alpha1_explain_proto_goTypes = nil
file_google_api_expr_v1alpha1_explain_proto_depIdxs = nil
}

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@ -0,0 +1,721 @@
// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.24.4
// source: google/api/expr/v1alpha1/value.proto
package expr
import (
reflect "reflect"
sync "sync"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
anypb "google.golang.org/protobuf/types/known/anypb"
structpb "google.golang.org/protobuf/types/known/structpb"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// Represents a CEL value.
//
// This is similar to `google.protobuf.Value`, but can represent CEL's full
// range of values.
type Value struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// Required. The valid kinds of values.
//
// Types that are assignable to Kind:
//
// *Value_NullValue
// *Value_BoolValue
// *Value_Int64Value
// *Value_Uint64Value
// *Value_DoubleValue
// *Value_StringValue
// *Value_BytesValue
// *Value_EnumValue
// *Value_ObjectValue
// *Value_MapValue
// *Value_ListValue
// *Value_TypeValue
Kind isValue_Kind `protobuf_oneof:"kind"`
}
func (x *Value) Reset() {
*x = Value{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_expr_v1alpha1_value_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Value) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Value) ProtoMessage() {}
func (x *Value) ProtoReflect() protoreflect.Message {
mi := &file_google_api_expr_v1alpha1_value_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Value.ProtoReflect.Descriptor instead.
func (*Value) Descriptor() ([]byte, []int) {
return file_google_api_expr_v1alpha1_value_proto_rawDescGZIP(), []int{0}
}
func (m *Value) GetKind() isValue_Kind {
if m != nil {
return m.Kind
}
return nil
}
func (x *Value) GetNullValue() structpb.NullValue {
if x, ok := x.GetKind().(*Value_NullValue); ok {
return x.NullValue
}
return structpb.NullValue_NULL_VALUE
}
func (x *Value) GetBoolValue() bool {
if x, ok := x.GetKind().(*Value_BoolValue); ok {
return x.BoolValue
}
return false
}
func (x *Value) GetInt64Value() int64 {
if x, ok := x.GetKind().(*Value_Int64Value); ok {
return x.Int64Value
}
return 0
}
func (x *Value) GetUint64Value() uint64 {
if x, ok := x.GetKind().(*Value_Uint64Value); ok {
return x.Uint64Value
}
return 0
}
func (x *Value) GetDoubleValue() float64 {
if x, ok := x.GetKind().(*Value_DoubleValue); ok {
return x.DoubleValue
}
return 0
}
func (x *Value) GetStringValue() string {
if x, ok := x.GetKind().(*Value_StringValue); ok {
return x.StringValue
}
return ""
}
func (x *Value) GetBytesValue() []byte {
if x, ok := x.GetKind().(*Value_BytesValue); ok {
return x.BytesValue
}
return nil
}
func (x *Value) GetEnumValue() *EnumValue {
if x, ok := x.GetKind().(*Value_EnumValue); ok {
return x.EnumValue
}
return nil
}
func (x *Value) GetObjectValue() *anypb.Any {
if x, ok := x.GetKind().(*Value_ObjectValue); ok {
return x.ObjectValue
}
return nil
}
func (x *Value) GetMapValue() *MapValue {
if x, ok := x.GetKind().(*Value_MapValue); ok {
return x.MapValue
}
return nil
}
func (x *Value) GetListValue() *ListValue {
if x, ok := x.GetKind().(*Value_ListValue); ok {
return x.ListValue
}
return nil
}
func (x *Value) GetTypeValue() string {
if x, ok := x.GetKind().(*Value_TypeValue); ok {
return x.TypeValue
}
return ""
}
type isValue_Kind interface {
isValue_Kind()
}
type Value_NullValue struct {
// Null value.
NullValue structpb.NullValue `protobuf:"varint,1,opt,name=null_value,json=nullValue,proto3,enum=google.protobuf.NullValue,oneof"`
}
type Value_BoolValue struct {
// Boolean value.
BoolValue bool `protobuf:"varint,2,opt,name=bool_value,json=boolValue,proto3,oneof"`
}
type Value_Int64Value struct {
// Signed integer value.
Int64Value int64 `protobuf:"varint,3,opt,name=int64_value,json=int64Value,proto3,oneof"`
}
type Value_Uint64Value struct {
// Unsigned integer value.
Uint64Value uint64 `protobuf:"varint,4,opt,name=uint64_value,json=uint64Value,proto3,oneof"`
}
type Value_DoubleValue struct {
// Floating point value.
DoubleValue float64 `protobuf:"fixed64,5,opt,name=double_value,json=doubleValue,proto3,oneof"`
}
type Value_StringValue struct {
// UTF-8 string value.
StringValue string `protobuf:"bytes,6,opt,name=string_value,json=stringValue,proto3,oneof"`
}
type Value_BytesValue struct {
// Byte string value.
BytesValue []byte `protobuf:"bytes,7,opt,name=bytes_value,json=bytesValue,proto3,oneof"`
}
type Value_EnumValue struct {
// An enum value.
EnumValue *EnumValue `protobuf:"bytes,9,opt,name=enum_value,json=enumValue,proto3,oneof"`
}
type Value_ObjectValue struct {
// The proto message backing an object value.
ObjectValue *anypb.Any `protobuf:"bytes,10,opt,name=object_value,json=objectValue,proto3,oneof"`
}
type Value_MapValue struct {
// Map value.
MapValue *MapValue `protobuf:"bytes,11,opt,name=map_value,json=mapValue,proto3,oneof"`
}
type Value_ListValue struct {
// List value.
ListValue *ListValue `protobuf:"bytes,12,opt,name=list_value,json=listValue,proto3,oneof"`
}
type Value_TypeValue struct {
// Type value.
TypeValue string `protobuf:"bytes,15,opt,name=type_value,json=typeValue,proto3,oneof"`
}
func (*Value_NullValue) isValue_Kind() {}
func (*Value_BoolValue) isValue_Kind() {}
func (*Value_Int64Value) isValue_Kind() {}
func (*Value_Uint64Value) isValue_Kind() {}
func (*Value_DoubleValue) isValue_Kind() {}
func (*Value_StringValue) isValue_Kind() {}
func (*Value_BytesValue) isValue_Kind() {}
func (*Value_EnumValue) isValue_Kind() {}
func (*Value_ObjectValue) isValue_Kind() {}
func (*Value_MapValue) isValue_Kind() {}
func (*Value_ListValue) isValue_Kind() {}
func (*Value_TypeValue) isValue_Kind() {}
// An enum value.
type EnumValue struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The fully qualified name of the enum type.
Type string `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
// The value of the enum.
Value int32 `protobuf:"varint,2,opt,name=value,proto3" json:"value,omitempty"`
}
func (x *EnumValue) Reset() {
*x = EnumValue{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_expr_v1alpha1_value_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *EnumValue) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*EnumValue) ProtoMessage() {}
func (x *EnumValue) ProtoReflect() protoreflect.Message {
mi := &file_google_api_expr_v1alpha1_value_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use EnumValue.ProtoReflect.Descriptor instead.
func (*EnumValue) Descriptor() ([]byte, []int) {
return file_google_api_expr_v1alpha1_value_proto_rawDescGZIP(), []int{1}
}
func (x *EnumValue) GetType() string {
if x != nil {
return x.Type
}
return ""
}
func (x *EnumValue) GetValue() int32 {
if x != nil {
return x.Value
}
return 0
}
// A list.
//
// Wrapped in a message so 'not set' and empty can be differentiated, which is
// required for use in a 'oneof'.
type ListValue struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The ordered values in the list.
Values []*Value `protobuf:"bytes,1,rep,name=values,proto3" json:"values,omitempty"`
}
func (x *ListValue) Reset() {
*x = ListValue{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_expr_v1alpha1_value_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *ListValue) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*ListValue) ProtoMessage() {}
func (x *ListValue) ProtoReflect() protoreflect.Message {
mi := &file_google_api_expr_v1alpha1_value_proto_msgTypes[2]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use ListValue.ProtoReflect.Descriptor instead.
func (*ListValue) Descriptor() ([]byte, []int) {
return file_google_api_expr_v1alpha1_value_proto_rawDescGZIP(), []int{2}
}
func (x *ListValue) GetValues() []*Value {
if x != nil {
return x.Values
}
return nil
}
// A map.
//
// Wrapped in a message so 'not set' and empty can be differentiated, which is
// required for use in a 'oneof'.
type MapValue struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The set of map entries.
//
// CEL has fewer restrictions on keys, so a protobuf map represenation
// cannot be used.
Entries []*MapValue_Entry `protobuf:"bytes,1,rep,name=entries,proto3" json:"entries,omitempty"`
}
func (x *MapValue) Reset() {
*x = MapValue{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_expr_v1alpha1_value_proto_msgTypes[3]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *MapValue) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*MapValue) ProtoMessage() {}
func (x *MapValue) ProtoReflect() protoreflect.Message {
mi := &file_google_api_expr_v1alpha1_value_proto_msgTypes[3]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use MapValue.ProtoReflect.Descriptor instead.
func (*MapValue) Descriptor() ([]byte, []int) {
return file_google_api_expr_v1alpha1_value_proto_rawDescGZIP(), []int{3}
}
func (x *MapValue) GetEntries() []*MapValue_Entry {
if x != nil {
return x.Entries
}
return nil
}
// An entry in the map.
type MapValue_Entry struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The key.
//
// Must be unique with in the map.
// Currently only boolean, int, uint, and string values can be keys.
Key *Value `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
// The value.
Value *Value `protobuf:"bytes,2,opt,name=value,proto3" json:"value,omitempty"`
}
func (x *MapValue_Entry) Reset() {
*x = MapValue_Entry{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_expr_v1alpha1_value_proto_msgTypes[4]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *MapValue_Entry) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*MapValue_Entry) ProtoMessage() {}
func (x *MapValue_Entry) ProtoReflect() protoreflect.Message {
mi := &file_google_api_expr_v1alpha1_value_proto_msgTypes[4]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use MapValue_Entry.ProtoReflect.Descriptor instead.
func (*MapValue_Entry) Descriptor() ([]byte, []int) {
return file_google_api_expr_v1alpha1_value_proto_rawDescGZIP(), []int{3, 0}
}
func (x *MapValue_Entry) GetKey() *Value {
if x != nil {
return x.Key
}
return nil
}
func (x *MapValue_Entry) GetValue() *Value {
if x != nil {
return x.Value
}
return nil
}
var File_google_api_expr_v1alpha1_value_proto protoreflect.FileDescriptor
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}
var (
file_google_api_expr_v1alpha1_value_proto_rawDescOnce sync.Once
file_google_api_expr_v1alpha1_value_proto_rawDescData = file_google_api_expr_v1alpha1_value_proto_rawDesc
)
func file_google_api_expr_v1alpha1_value_proto_rawDescGZIP() []byte {
file_google_api_expr_v1alpha1_value_proto_rawDescOnce.Do(func() {
file_google_api_expr_v1alpha1_value_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_api_expr_v1alpha1_value_proto_rawDescData)
})
return file_google_api_expr_v1alpha1_value_proto_rawDescData
}
var file_google_api_expr_v1alpha1_value_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
var file_google_api_expr_v1alpha1_value_proto_goTypes = []interface{}{
(*Value)(nil), // 0: google.api.expr.v1alpha1.Value
(*EnumValue)(nil), // 1: google.api.expr.v1alpha1.EnumValue
(*ListValue)(nil), // 2: google.api.expr.v1alpha1.ListValue
(*MapValue)(nil), // 3: google.api.expr.v1alpha1.MapValue
(*MapValue_Entry)(nil), // 4: google.api.expr.v1alpha1.MapValue.Entry
(structpb.NullValue)(0), // 5: google.protobuf.NullValue
(*anypb.Any)(nil), // 6: google.protobuf.Any
}
var file_google_api_expr_v1alpha1_value_proto_depIdxs = []int32{
5, // 0: google.api.expr.v1alpha1.Value.null_value:type_name -> google.protobuf.NullValue
1, // 1: google.api.expr.v1alpha1.Value.enum_value:type_name -> google.api.expr.v1alpha1.EnumValue
6, // 2: google.api.expr.v1alpha1.Value.object_value:type_name -> google.protobuf.Any
3, // 3: google.api.expr.v1alpha1.Value.map_value:type_name -> google.api.expr.v1alpha1.MapValue
2, // 4: google.api.expr.v1alpha1.Value.list_value:type_name -> google.api.expr.v1alpha1.ListValue
0, // 5: google.api.expr.v1alpha1.ListValue.values:type_name -> google.api.expr.v1alpha1.Value
4, // 6: google.api.expr.v1alpha1.MapValue.entries:type_name -> google.api.expr.v1alpha1.MapValue.Entry
0, // 7: google.api.expr.v1alpha1.MapValue.Entry.key:type_name -> google.api.expr.v1alpha1.Value
0, // 8: google.api.expr.v1alpha1.MapValue.Entry.value:type_name -> google.api.expr.v1alpha1.Value
9, // [9:9] is the sub-list for method output_type
9, // [9:9] is the sub-list for method input_type
9, // [9:9] is the sub-list for extension type_name
9, // [9:9] is the sub-list for extension extendee
0, // [0:9] is the sub-list for field type_name
}
func init() { file_google_api_expr_v1alpha1_value_proto_init() }
func file_google_api_expr_v1alpha1_value_proto_init() {
if File_google_api_expr_v1alpha1_value_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_google_api_expr_v1alpha1_value_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Value); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_expr_v1alpha1_value_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*EnumValue); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_expr_v1alpha1_value_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*ListValue); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_expr_v1alpha1_value_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*MapValue); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_google_api_expr_v1alpha1_value_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*MapValue_Entry); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
file_google_api_expr_v1alpha1_value_proto_msgTypes[0].OneofWrappers = []interface{}{
(*Value_NullValue)(nil),
(*Value_BoolValue)(nil),
(*Value_Int64Value)(nil),
(*Value_Uint64Value)(nil),
(*Value_DoubleValue)(nil),
(*Value_StringValue)(nil),
(*Value_BytesValue)(nil),
(*Value_EnumValue)(nil),
(*Value_ObjectValue)(nil),
(*Value_MapValue)(nil),
(*Value_ListValue)(nil),
(*Value_TypeValue)(nil),
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_api_expr_v1alpha1_value_proto_rawDesc,
NumEnums: 0,
NumMessages: 5,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_google_api_expr_v1alpha1_value_proto_goTypes,
DependencyIndexes: file_google_api_expr_v1alpha1_value_proto_depIdxs,
MessageInfos: file_google_api_expr_v1alpha1_value_proto_msgTypes,
}.Build()
File_google_api_expr_v1alpha1_value_proto = out.File
file_google_api_expr_v1alpha1_value_proto_rawDesc = nil
file_google_api_expr_v1alpha1_value_proto_goTypes = nil
file_google_api_expr_v1alpha1_value_proto_depIdxs = nil
}

235
e2e/vendor/google.golang.org/genproto/googleapis/api/httpbody/httpbody.pb.go generated vendored Normal file
View File

@ -0,0 +1,235 @@
// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.24.4
// source: google/api/httpbody.proto
package httpbody
import (
reflect "reflect"
sync "sync"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
anypb "google.golang.org/protobuf/types/known/anypb"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// Message that represents an arbitrary HTTP body. It should only be used for
// payload formats that can't be represented as JSON, such as raw binary or
// an HTML page.
//
// This message can be used both in streaming and non-streaming API methods in
// the request as well as the response.
//
// It can be used as a top-level request field, which is convenient if one
// wants to extract parameters from either the URL or HTTP template into the
// request fields and also want access to the raw HTTP body.
//
// Example:
//
// message GetResourceRequest {
// // A unique request id.
// string request_id = 1;
//
// // The raw HTTP body is bound to this field.
// google.api.HttpBody http_body = 2;
//
// }
//
// service ResourceService {
// rpc GetResource(GetResourceRequest)
// returns (google.api.HttpBody);
// rpc UpdateResource(google.api.HttpBody)
// returns (google.protobuf.Empty);
//
// }
//
// Example with streaming methods:
//
// service CaldavService {
// rpc GetCalendar(stream google.api.HttpBody)
// returns (stream google.api.HttpBody);
// rpc UpdateCalendar(stream google.api.HttpBody)
// returns (stream google.api.HttpBody);
//
// }
//
// Use of this type only changes how the request and response bodies are
// handled, all other features will continue to work unchanged.
type HttpBody struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The HTTP Content-Type header value specifying the content type of the body.
ContentType string `protobuf:"bytes,1,opt,name=content_type,json=contentType,proto3" json:"content_type,omitempty"`
// The HTTP request/response body as raw binary.
Data []byte `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"`
// Application specific response metadata. Must be set in the first response
// for streaming APIs.
Extensions []*anypb.Any `protobuf:"bytes,3,rep,name=extensions,proto3" json:"extensions,omitempty"`
}
func (x *HttpBody) Reset() {
*x = HttpBody{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_httpbody_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *HttpBody) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*HttpBody) ProtoMessage() {}
func (x *HttpBody) ProtoReflect() protoreflect.Message {
mi := &file_google_api_httpbody_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use HttpBody.ProtoReflect.Descriptor instead.
func (*HttpBody) Descriptor() ([]byte, []int) {
return file_google_api_httpbody_proto_rawDescGZIP(), []int{0}
}
func (x *HttpBody) GetContentType() string {
if x != nil {
return x.ContentType
}
return ""
}
func (x *HttpBody) GetData() []byte {
if x != nil {
return x.Data
}
return nil
}
func (x *HttpBody) GetExtensions() []*anypb.Any {
if x != nil {
return x.Extensions
}
return nil
}
var File_google_api_httpbody_proto protoreflect.FileDescriptor
var file_google_api_httpbody_proto_rawDesc = []byte{
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0x04, 0x47, 0x41, 0x50, 0x49, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
}
var (
file_google_api_httpbody_proto_rawDescOnce sync.Once
file_google_api_httpbody_proto_rawDescData = file_google_api_httpbody_proto_rawDesc
)
func file_google_api_httpbody_proto_rawDescGZIP() []byte {
file_google_api_httpbody_proto_rawDescOnce.Do(func() {
file_google_api_httpbody_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_api_httpbody_proto_rawDescData)
})
return file_google_api_httpbody_proto_rawDescData
}
var file_google_api_httpbody_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
var file_google_api_httpbody_proto_goTypes = []interface{}{
(*HttpBody)(nil), // 0: google.api.HttpBody
(*anypb.Any)(nil), // 1: google.protobuf.Any
}
var file_google_api_httpbody_proto_depIdxs = []int32{
1, // 0: google.api.HttpBody.extensions:type_name -> google.protobuf.Any
1, // [1:1] is the sub-list for method output_type
1, // [1:1] is the sub-list for method input_type
1, // [1:1] is the sub-list for extension type_name
1, // [1:1] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
}
func init() { file_google_api_httpbody_proto_init() }
func file_google_api_httpbody_proto_init() {
if File_google_api_httpbody_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_google_api_httpbody_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*HttpBody); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_api_httpbody_proto_rawDesc,
NumEnums: 0,
NumMessages: 1,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_google_api_httpbody_proto_goTypes,
DependencyIndexes: file_google_api_httpbody_proto_depIdxs,
MessageInfos: file_google_api_httpbody_proto_msgTypes,
}.Build()
File_google_api_httpbody_proto = out.File
file_google_api_httpbody_proto_rawDesc = nil
file_google_api_httpbody_proto_goTypes = nil
file_google_api_httpbody_proto_depIdxs = nil
}

203
e2e/vendor/google.golang.org/genproto/googleapis/api/launch_stage.pb.go generated vendored Normal file
View File

@ -0,0 +1,203 @@
// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.24.4
// source: google/api/launch_stage.proto
package api
import (
reflect "reflect"
sync "sync"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// The launch stage as defined by [Google Cloud Platform
// Launch Stages](https://cloud.google.com/terms/launch-stages).
type LaunchStage int32
const (
// Do not use this default value.
LaunchStage_LAUNCH_STAGE_UNSPECIFIED LaunchStage = 0
// The feature is not yet implemented. Users can not use it.
LaunchStage_UNIMPLEMENTED LaunchStage = 6
// Prelaunch features are hidden from users and are only visible internally.
LaunchStage_PRELAUNCH LaunchStage = 7
// Early Access features are limited to a closed group of testers. To use
// these features, you must sign up in advance and sign a Trusted Tester
// agreement (which includes confidentiality provisions). These features may
// be unstable, changed in backward-incompatible ways, and are not
// guaranteed to be released.
LaunchStage_EARLY_ACCESS LaunchStage = 1
// Alpha is a limited availability test for releases before they are cleared
// for widespread use. By Alpha, all significant design issues are resolved
// and we are in the process of verifying functionality. Alpha customers
// need to apply for access, agree to applicable terms, and have their
// projects allowlisted. Alpha releases don't have to be feature complete,
// no SLAs are provided, and there are no technical support obligations, but
// they will be far enough along that customers can actually use them in
// test environments or for limited-use tests -- just like they would in
// normal production cases.
LaunchStage_ALPHA LaunchStage = 2
// Beta is the point at which we are ready to open a release for any
// customer to use. There are no SLA or technical support obligations in a
// Beta release. Products will be complete from a feature perspective, but
// may have some open outstanding issues. Beta releases are suitable for
// limited production use cases.
LaunchStage_BETA LaunchStage = 3
// GA features are open to all developers and are considered stable and
// fully qualified for production use.
LaunchStage_GA LaunchStage = 4
// Deprecated features are scheduled to be shut down and removed. For more
// information, see the "Deprecation Policy" section of our [Terms of
// Service](https://cloud.google.com/terms/)
// and the [Google Cloud Platform Subject to the Deprecation
// Policy](https://cloud.google.com/terms/deprecation) documentation.
LaunchStage_DEPRECATED LaunchStage = 5
)
// Enum value maps for LaunchStage.
var (
LaunchStage_name = map[int32]string{
0: "LAUNCH_STAGE_UNSPECIFIED",
6: "UNIMPLEMENTED",
7: "PRELAUNCH",
1: "EARLY_ACCESS",
2: "ALPHA",
3: "BETA",
4: "GA",
5: "DEPRECATED",
}
LaunchStage_value = map[string]int32{
"LAUNCH_STAGE_UNSPECIFIED": 0,
"UNIMPLEMENTED": 6,
"PRELAUNCH": 7,
"EARLY_ACCESS": 1,
"ALPHA": 2,
"BETA": 3,
"GA": 4,
"DEPRECATED": 5,
}
)
func (x LaunchStage) Enum() *LaunchStage {
p := new(LaunchStage)
*p = x
return p
}
func (x LaunchStage) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (LaunchStage) Descriptor() protoreflect.EnumDescriptor {
return file_google_api_launch_stage_proto_enumTypes[0].Descriptor()
}
func (LaunchStage) Type() protoreflect.EnumType {
return &file_google_api_launch_stage_proto_enumTypes[0]
}
func (x LaunchStage) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use LaunchStage.Descriptor instead.
func (LaunchStage) EnumDescriptor() ([]byte, []int) {
return file_google_api_launch_stage_proto_rawDescGZIP(), []int{0}
}
var File_google_api_launch_stage_proto protoreflect.FileDescriptor
var file_google_api_launch_stage_proto_rawDesc = []byte{
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0x02, 0x04, 0x47, 0x41, 0x50, 0x49, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
}
var (
file_google_api_launch_stage_proto_rawDescOnce sync.Once
file_google_api_launch_stage_proto_rawDescData = file_google_api_launch_stage_proto_rawDesc
)
func file_google_api_launch_stage_proto_rawDescGZIP() []byte {
file_google_api_launch_stage_proto_rawDescOnce.Do(func() {
file_google_api_launch_stage_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_api_launch_stage_proto_rawDescData)
})
return file_google_api_launch_stage_proto_rawDescData
}
var file_google_api_launch_stage_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
var file_google_api_launch_stage_proto_goTypes = []interface{}{
(LaunchStage)(0), // 0: google.api.LaunchStage
}
var file_google_api_launch_stage_proto_depIdxs = []int32{
0, // [0:0] is the sub-list for method output_type
0, // [0:0] is the sub-list for method input_type
0, // [0:0] is the sub-list for extension type_name
0, // [0:0] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
}
func init() { file_google_api_launch_stage_proto_init() }
func file_google_api_launch_stage_proto_init() {
if File_google_api_launch_stage_proto != nil {
return
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_api_launch_stage_proto_rawDesc,
NumEnums: 1,
NumMessages: 0,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_google_api_launch_stage_proto_goTypes,
DependencyIndexes: file_google_api_launch_stage_proto_depIdxs,
EnumInfos: file_google_api_launch_stage_proto_enumTypes,
}.Build()
File_google_api_launch_stage_proto = out.File
file_google_api_launch_stage_proto_rawDesc = nil
file_google_api_launch_stage_proto_goTypes = nil
file_google_api_launch_stage_proto_depIdxs = nil
}

202
e2e/vendor/google.golang.org/genproto/googleapis/rpc/LICENSE generated vendored Normal file
View File

@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

1314
e2e/vendor/google.golang.org/genproto/googleapis/rpc/errdetails/error_details.pb.go generated vendored Normal file
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203
e2e/vendor/google.golang.org/genproto/googleapis/rpc/status/status.pb.go generated vendored Normal file
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@ -0,0 +1,203 @@
// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.24.4
// source: google/rpc/status.proto
package status
import (
reflect "reflect"
sync "sync"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
anypb "google.golang.org/protobuf/types/known/anypb"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
// The `Status` type defines a logical error model that is suitable for
// different programming environments, including REST APIs and RPC APIs. It is
// used by [gRPC](https://github.com/grpc). Each `Status` message contains
// three pieces of data: error code, error message, and error details.
//
// You can find out more about this error model and how to work with it in the
// [API Design Guide](https://cloud.google.com/apis/design/errors).
type Status struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// The status code, which should be an enum value of
// [google.rpc.Code][google.rpc.Code].
Code int32 `protobuf:"varint,1,opt,name=code,proto3" json:"code,omitempty"`
// A developer-facing error message, which should be in English. Any
// user-facing error message should be localized and sent in the
// [google.rpc.Status.details][google.rpc.Status.details] field, or localized
// by the client.
Message string `protobuf:"bytes,2,opt,name=message,proto3" json:"message,omitempty"`
// A list of messages that carry the error details. There is a common set of
// message types for APIs to use.
Details []*anypb.Any `protobuf:"bytes,3,rep,name=details,proto3" json:"details,omitempty"`
}
func (x *Status) Reset() {
*x = Status{}
if protoimpl.UnsafeEnabled {
mi := &file_google_rpc_status_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Status) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Status) ProtoMessage() {}
func (x *Status) ProtoReflect() protoreflect.Message {
mi := &file_google_rpc_status_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Status.ProtoReflect.Descriptor instead.
func (*Status) Descriptor() ([]byte, []int) {
return file_google_rpc_status_proto_rawDescGZIP(), []int{0}
}
func (x *Status) GetCode() int32 {
if x != nil {
return x.Code
}
return 0
}
func (x *Status) GetMessage() string {
if x != nil {
return x.Message
}
return ""
}
func (x *Status) GetDetails() []*anypb.Any {
if x != nil {
return x.Details
}
return nil
}
var File_google_rpc_status_proto protoreflect.FileDescriptor
var file_google_rpc_status_proto_rawDesc = []byte{
0x0a, 0x17, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x72, 0x70, 0x63, 0x2f, 0x73, 0x74, 0x61,
0x74, 0x75, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0a, 0x67, 0x6f, 0x6f, 0x67, 0x6c,
0x65, 0x2e, 0x72, 0x70, 0x63, 0x1a, 0x19, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72,
0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x61, 0x6e, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
0x22, 0x66, 0x0a, 0x06, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x12, 0x12, 0x0a, 0x04, 0x63, 0x6f,
0x64, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x05, 0x52, 0x04, 0x63, 0x6f, 0x64, 0x65, 0x12, 0x18,
0x0a, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52,
0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x12, 0x2e, 0x0a, 0x07, 0x64, 0x65, 0x74, 0x61,
0x69, 0x6c, 0x73, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x14, 0x2e, 0x67, 0x6f, 0x6f, 0x67,
0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x41, 0x6e, 0x79, 0x52,
0x07, 0x64, 0x65, 0x74, 0x61, 0x69, 0x6c, 0x73, 0x42, 0x61, 0x0a, 0x0e, 0x63, 0x6f, 0x6d, 0x2e,
0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x72, 0x70, 0x63, 0x42, 0x0b, 0x53, 0x74, 0x61, 0x74,
0x75, 0x73, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x50, 0x01, 0x5a, 0x37, 0x67, 0x6f, 0x6f, 0x67, 0x6c,
0x65, 0x2e, 0x67, 0x6f, 0x6c, 0x61, 0x6e, 0x67, 0x2e, 0x6f, 0x72, 0x67, 0x2f, 0x67, 0x65, 0x6e,
0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x61, 0x70, 0x69, 0x73,
0x2f, 0x72, 0x70, 0x63, 0x2f, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x3b, 0x73, 0x74, 0x61, 0x74,
0x75, 0x73, 0xf8, 0x01, 0x01, 0xa2, 0x02, 0x03, 0x52, 0x50, 0x43, 0x62, 0x06, 0x70, 0x72, 0x6f,
0x74, 0x6f, 0x33,
}
var (
file_google_rpc_status_proto_rawDescOnce sync.Once
file_google_rpc_status_proto_rawDescData = file_google_rpc_status_proto_rawDesc
)
func file_google_rpc_status_proto_rawDescGZIP() []byte {
file_google_rpc_status_proto_rawDescOnce.Do(func() {
file_google_rpc_status_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_rpc_status_proto_rawDescData)
})
return file_google_rpc_status_proto_rawDescData
}
var file_google_rpc_status_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
var file_google_rpc_status_proto_goTypes = []interface{}{
(*Status)(nil), // 0: google.rpc.Status
(*anypb.Any)(nil), // 1: google.protobuf.Any
}
var file_google_rpc_status_proto_depIdxs = []int32{
1, // 0: google.rpc.Status.details:type_name -> google.protobuf.Any
1, // [1:1] is the sub-list for method output_type
1, // [1:1] is the sub-list for method input_type
1, // [1:1] is the sub-list for extension type_name
1, // [1:1] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
}
func init() { file_google_rpc_status_proto_init() }
func file_google_rpc_status_proto_init() {
if File_google_rpc_status_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_google_rpc_status_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Status); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_rpc_status_proto_rawDesc,
NumEnums: 0,
NumMessages: 1,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_google_rpc_status_proto_goTypes,
DependencyIndexes: file_google_rpc_status_proto_depIdxs,
MessageInfos: file_google_rpc_status_proto_msgTypes,
}.Build()
File_google_rpc_status_proto = out.File
file_google_rpc_status_proto_rawDesc = nil
file_google_rpc_status_proto_goTypes = nil
file_google_rpc_status_proto_depIdxs = nil
}

1
e2e/vendor/google.golang.org/grpc/AUTHORS generated vendored Normal file
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@ -0,0 +1 @@
Google Inc.

3
e2e/vendor/google.golang.org/grpc/CODE-OF-CONDUCT.md generated vendored Normal file
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## Community Code of Conduct
gRPC follows the [CNCF Code of Conduct](https://github.com/cncf/foundation/blob/master/code-of-conduct.md).

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# How to contribute
We definitely welcome your patches and contributions to gRPC! Please read the gRPC
organization's [governance rules](https://github.com/grpc/grpc-community/blob/master/governance.md)
and [contribution guidelines](https://github.com/grpc/grpc-community/blob/master/CONTRIBUTING.md) before proceeding.
If you are new to GitHub, please start by reading [Pull Request howto](https://help.github.com/articles/about-pull-requests/)
## Legal requirements
In order to protect both you and ourselves, you will need to sign the
[Contributor License Agreement](https://identity.linuxfoundation.org/projects/cncf).
## Guidelines for Pull Requests
How to get your contributions merged smoothly and quickly.
- Create **small PRs** that are narrowly focused on **addressing a single
concern**. We often times receive PRs that are trying to fix several things at
a time, but only one fix is considered acceptable, nothing gets merged and
both author's & review's time is wasted. Create more PRs to address different
concerns and everyone will be happy.
- If you are searching for features to work on, issues labeled [Status: Help
Wanted](https://github.com/grpc/grpc-go/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3A%22Status%3A+Help+Wanted%22)
is a great place to start. These issues are well-documented and usually can be
resolved with a single pull request.
- If you are adding a new file, make sure it has the copyright message template
at the top as a comment. You can copy over the message from an existing file
and update the year.
- The grpc package should only depend on standard Go packages and a small number
of exceptions. If your contribution introduces new dependencies which are NOT
in the [list](https://godoc.org/google.golang.org/grpc?imports), you need a
discussion with gRPC-Go authors and consultants.
- For speculative changes, consider opening an issue and discussing it first. If
you are suggesting a behavioral or API change, consider starting with a [gRFC
proposal](https://github.com/grpc/proposal).
- Provide a good **PR description** as a record of **what** change is being made
and **why** it was made. Link to a GitHub issue if it exists.
- If you want to fix formatting or style, consider whether your changes are an
obvious improvement or might be considered a personal preference. If a style
change is based on preference, it likely will not be accepted. If it corrects
widely agreed-upon anti-patterns, then please do create a PR and explain the
benefits of the change.
- Unless your PR is trivial, you should expect there will be reviewer comments
that you'll need to address before merging. We'll mark it as `Status: Requires
Reporter Clarification` if we expect you to respond to these comments in a
timely manner. If the PR remains inactive for 6 days, it will be marked as
`stale` and automatically close 7 days after that if we don't hear back from
you.
- Maintain **clean commit history** and use **meaningful commit messages**. PRs
with messy commit history are difficult to review and won't be merged. Use
`rebase -i upstream/master` to curate your commit history and/or to bring in
latest changes from master (but avoid rebasing in the middle of a code
review).
- Keep your PR up to date with upstream/master (if there are merge conflicts, we
can't really merge your change).
- **All tests need to be passing** before your change can be merged. We
recommend you **run tests locally** before creating your PR to catch breakages
early on.
- `./scripts/vet.sh` to catch vet errors
- `go test -cpu 1,4 -timeout 7m ./...` to run the tests
- `go test -race -cpu 1,4 -timeout 7m ./...` to run tests in race mode
- Exceptions to the rules can be made if there's a compelling reason for doing so.

1
e2e/vendor/google.golang.org/grpc/GOVERNANCE.md generated vendored Normal file
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This repository is governed by the gRPC organization's [governance rules](https://github.com/grpc/grpc-community/blob/master/governance.md).

202
e2e/vendor/google.golang.org/grpc/LICENSE generated vendored Normal file
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@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
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designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
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4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
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meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
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You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
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for any such Derivative Works as a whole, provided Your use,
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the conditions stated in this License.
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any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
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origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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This page lists all active maintainers of this repository. If you were a
maintainer and would like to add your name to the Emeritus list, please send us a
PR.
See [GOVERNANCE.md](https://github.com/grpc/grpc-community/blob/master/governance.md)
for governance guidelines and how to become a maintainer.
See [CONTRIBUTING.md](https://github.com/grpc/grpc-community/blob/master/CONTRIBUTING.md)
for general contribution guidelines.
## Maintainers (in alphabetical order)
- [aranjans](https://github.com/aranjans), Google LLC
- [arjan-bal](https://github.com/arjan-bal), Google LLC
- [arvindbr8](https://github.com/arvindbr8), Google LLC
- [atollena](https://github.com/atollena), Datadog, Inc.
- [dfawley](https://github.com/dfawley), Google LLC
- [easwars](https://github.com/easwars), Google LLC
- [erm-g](https://github.com/erm-g), Google LLC
- [gtcooke94](https://github.com/gtcooke94), Google LLC
- [purnesh42h](https://github.com/purnesh42h), Google LLC
- [zasweq](https://github.com/zasweq), Google LLC
## Emeritus Maintainers (in alphabetical order)
- [adelez](https://github.com/adelez)
- [canguler](https://github.com/canguler)
- [cesarghali](https://github.com/cesarghali)
- [iamqizhao](https://github.com/iamqizhao)
- [jeanbza](https://github.com/jeanbza)
- [jtattermusch](https://github.com/jtattermusch)
- [lyuxuan](https://github.com/lyuxuan)
- [makmukhi](https://github.com/makmukhi)
- [matt-kwong](https://github.com/matt-kwong)
- [menghanl](https://github.com/menghanl)
- [nicolasnoble](https://github.com/nicolasnoble)
- [srini100](https://github.com/srini100)
- [yongni](https://github.com/yongni)

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all: vet test testrace
build:
go build google.golang.org/grpc/...
clean:
go clean -i google.golang.org/grpc/...
deps:
GO111MODULE=on go get -d -v google.golang.org/grpc/...
proto:
@ if ! which protoc > /dev/null; then \
echo "error: protoc not installed" >&2; \
exit 1; \
fi
go generate google.golang.org/grpc/...
test:
go test -cpu 1,4 -timeout 7m google.golang.org/grpc/...
testsubmodule:
cd security/advancedtls && go test -cpu 1,4 -timeout 7m google.golang.org/grpc/security/advancedtls/...
cd security/authorization && go test -cpu 1,4 -timeout 7m google.golang.org/grpc/security/authorization/...
testrace:
go test -race -cpu 1,4 -timeout 7m google.golang.org/grpc/...
testdeps:
GO111MODULE=on go get -d -v -t google.golang.org/grpc/...
vet: vetdeps
./scripts/vet.sh
vetdeps:
./scripts/vet.sh -install
.PHONY: \
all \
build \
clean \
deps \
proto \
test \
testsubmodule \
testrace \
testdeps \
vet \
vetdeps

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Copyright 2014 gRPC authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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# gRPC-Go
[![GoDoc](https://pkg.go.dev/badge/google.golang.org/grpc)][API]
[![GoReportCard](https://goreportcard.com/badge/grpc/grpc-go)](https://goreportcard.com/report/github.com/grpc/grpc-go)
[![codecov](https://codecov.io/gh/grpc/grpc-go/graph/badge.svg)](https://codecov.io/gh/grpc/grpc-go)
The [Go][] implementation of [gRPC][]: A high performance, open source, general
RPC framework that puts mobile and HTTP/2 first. For more information see the
[Go gRPC docs][], or jump directly into the [quick start][].
## Prerequisites
- **[Go][]**: any one of the **two latest major** [releases][go-releases].
## Installation
Simply add the following import to your code, and then `go [build|run|test]`
will automatically fetch the necessary dependencies:
```go
import "google.golang.org/grpc"
```
> **Note:** If you are trying to access `grpc-go` from **China**, see the
> [FAQ](#FAQ) below.
## Learn more
- [Go gRPC docs][], which include a [quick start][] and [API
reference][API] among other resources
- [Low-level technical docs](Documentation) from this repository
- [Performance benchmark][]
- [Examples](examples)
## FAQ
### I/O Timeout Errors
The `golang.org` domain may be blocked from some countries. `go get` usually
produces an error like the following when this happens:
```console
$ go get -u google.golang.org/grpc
package google.golang.org/grpc: unrecognized import path "google.golang.org/grpc" (https fetch: Get https://google.golang.org/grpc?go-get=1: dial tcp 216.239.37.1:443: i/o timeout)
```
To build Go code, there are several options:
- Set up a VPN and access google.golang.org through that.
- With Go module support: it is possible to use the `replace` feature of `go
mod` to create aliases for golang.org packages. In your project's directory:
```sh
go mod edit -replace=google.golang.org/grpc=github.com/grpc/grpc-go@latest
go mod tidy
go mod vendor
go build -mod=vendor
```
Again, this will need to be done for all transitive dependencies hosted on
golang.org as well. For details, refer to [golang/go issue
#28652](https://github.com/golang/go/issues/28652).
### Compiling error, undefined: grpc.SupportPackageIsVersion
Please update to the latest version of gRPC-Go using
`go get google.golang.org/grpc`.
### How to turn on logging
The default logger is controlled by environment variables. Turn everything on
like this:
```console
$ export GRPC_GO_LOG_VERBOSITY_LEVEL=99
$ export GRPC_GO_LOG_SEVERITY_LEVEL=info
```
### The RPC failed with error `"code = Unavailable desc = transport is closing"`
This error means the connection the RPC is using was closed, and there are many
possible reasons, including:
1. mis-configured transport credentials, connection failed on handshaking
1. bytes disrupted, possibly by a proxy in between
1. server shutdown
1. Keepalive parameters caused connection shutdown, for example if you have
configured your server to terminate connections regularly to [trigger DNS
lookups](https://github.com/grpc/grpc-go/issues/3170#issuecomment-552517779).
If this is the case, you may want to increase your
[MaxConnectionAgeGrace](https://pkg.go.dev/google.golang.org/grpc/keepalive?tab=doc#ServerParameters),
to allow longer RPC calls to finish.
It can be tricky to debug this because the error happens on the client side but
the root cause of the connection being closed is on the server side. Turn on
logging on __both client and server__, and see if there are any transport
errors.
[API]: https://pkg.go.dev/google.golang.org/grpc
[Go]: https://golang.org
[Go module]: https://github.com/golang/go/wiki/Modules
[gRPC]: https://grpc.io
[Go gRPC docs]: https://grpc.io/docs/languages/go
[Performance benchmark]: https://performance-dot-grpc-testing.appspot.com/explore?dashboard=5180705743044608
[quick start]: https://grpc.io/docs/languages/go/quickstart
[go-releases]: https://golang.org/doc/devel/release.html

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# Security Policy
For information on gRPC Security Policy and reporting potential security issues, please see [gRPC CVE Process](https://github.com/grpc/proposal/blob/master/P4-grpc-cve-process.md).

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/*
*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package attributes defines a generic key/value store used in various gRPC
// components.
//
// # Experimental
//
// Notice: This package is EXPERIMENTAL and may be changed or removed in a
// later release.
package attributes
import (
"fmt"
"strings"
)
// Attributes is an immutable struct for storing and retrieving generic
// key/value pairs. Keys must be hashable, and users should define their own
// types for keys. Values should not be modified after they are added to an
// Attributes or if they were received from one. If values implement 'Equal(o
// any) bool', it will be called by (*Attributes).Equal to determine whether
// two values with the same key should be considered equal.
type Attributes struct {
m map[any]any
}
// New returns a new Attributes containing the key/value pair.
func New(key, value any) *Attributes {
return &Attributes{m: map[any]any{key: value}}
}
// WithValue returns a new Attributes containing the previous keys and values
// and the new key/value pair. If the same key appears multiple times, the
// last value overwrites all previous values for that key. To remove an
// existing key, use a nil value. value should not be modified later.
func (a *Attributes) WithValue(key, value any) *Attributes {
if a == nil {
return New(key, value)
}
n := &Attributes{m: make(map[any]any, len(a.m)+1)}
for k, v := range a.m {
n.m[k] = v
}
n.m[key] = value
return n
}
// Value returns the value associated with these attributes for key, or nil if
// no value is associated with key. The returned value should not be modified.
func (a *Attributes) Value(key any) any {
if a == nil {
return nil
}
return a.m[key]
}
// Equal returns whether a and o are equivalent. If 'Equal(o any) bool' is
// implemented for a value in the attributes, it is called to determine if the
// value matches the one stored in the other attributes. If Equal is not
// implemented, standard equality is used to determine if the two values are
// equal. Note that some types (e.g. maps) aren't comparable by default, so
// they must be wrapped in a struct, or in an alias type, with Equal defined.
func (a *Attributes) Equal(o *Attributes) bool {
if a == nil && o == nil {
return true
}
if a == nil || o == nil {
return false
}
if len(a.m) != len(o.m) {
return false
}
for k, v := range a.m {
ov, ok := o.m[k]
if !ok {
// o missing element of a
return false
}
if eq, ok := v.(interface{ Equal(o any) bool }); ok {
if !eq.Equal(ov) {
return false
}
} else if v != ov {
// Fallback to a standard equality check if Value is unimplemented.
return false
}
}
return true
}
// String prints the attribute map. If any key or values throughout the map
// implement fmt.Stringer, it calls that method and appends.
func (a *Attributes) String() string {
var sb strings.Builder
sb.WriteString("{")
first := true
for k, v := range a.m {
if !first {
sb.WriteString(", ")
}
sb.WriteString(fmt.Sprintf("%q: %q ", str(k), str(v)))
first = false
}
sb.WriteString("}")
return sb.String()
}
func str(x any) (s string) {
if v, ok := x.(fmt.Stringer); ok {
return fmt.Sprint(v)
} else if v, ok := x.(string); ok {
return v
}
return fmt.Sprintf("<%p>", x)
}
// MarshalJSON helps implement the json.Marshaler interface, thereby rendering
// the Attributes correctly when printing (via pretty.JSON) structs containing
// Attributes as fields.
//
// Is it impossible to unmarshal attributes from a JSON representation and this
// method is meant only for debugging purposes.
func (a *Attributes) MarshalJSON() ([]byte, error) {
return []byte(a.String()), nil
}

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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// See internal/backoff package for the backoff implementation. This file is
// kept for the exported types and API backward compatibility.
package grpc
import (
"time"
"google.golang.org/grpc/backoff"
)
// DefaultBackoffConfig uses values specified for backoff in
// https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
//
// Deprecated: use ConnectParams instead. Will be supported throughout 1.x.
var DefaultBackoffConfig = BackoffConfig{
MaxDelay: 120 * time.Second,
}
// BackoffConfig defines the parameters for the default gRPC backoff strategy.
//
// Deprecated: use ConnectParams instead. Will be supported throughout 1.x.
type BackoffConfig struct {
// MaxDelay is the upper bound of backoff delay.
MaxDelay time.Duration
}
// ConnectParams defines the parameters for connecting and retrying. Users are
// encouraged to use this instead of the BackoffConfig type defined above. See
// here for more details:
// https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
//
// # Experimental
//
// Notice: This type is EXPERIMENTAL and may be changed or removed in a
// later release.
type ConnectParams struct {
// Backoff specifies the configuration options for connection backoff.
Backoff backoff.Config
// MinConnectTimeout is the minimum amount of time we are willing to give a
// connection to complete.
MinConnectTimeout time.Duration
}

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/*
*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package backoff provides configuration options for backoff.
//
// More details can be found at:
// https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
//
// All APIs in this package are experimental.
package backoff
import "time"
// Config defines the configuration options for backoff.
type Config struct {
// BaseDelay is the amount of time to backoff after the first failure.
BaseDelay time.Duration
// Multiplier is the factor with which to multiply backoffs after a
// failed retry. Should ideally be greater than 1.
Multiplier float64
// Jitter is the factor with which backoffs are randomized.
Jitter float64
// MaxDelay is the upper bound of backoff delay.
MaxDelay time.Duration
}
// DefaultConfig is a backoff configuration with the default values specified
// at https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
//
// This should be useful for callers who want to configure backoff with
// non-default values only for a subset of the options.
var DefaultConfig = Config{
BaseDelay: 1.0 * time.Second,
Multiplier: 1.6,
Jitter: 0.2,
MaxDelay: 120 * time.Second,
}

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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package balancer defines APIs for load balancing in gRPC.
// All APIs in this package are experimental.
package balancer
import (
"context"
"encoding/json"
"errors"
"net"
"strings"
"google.golang.org/grpc/channelz"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/credentials"
estats "google.golang.org/grpc/experimental/stats"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/resolver"
"google.golang.org/grpc/serviceconfig"
)
var (
// m is a map from name to balancer builder.
m = make(map[string]Builder)
logger = grpclog.Component("balancer")
)
// Register registers the balancer builder to the balancer map. b.Name
// (lowercased) will be used as the name registered with this builder. If the
// Builder implements ConfigParser, ParseConfig will be called when new service
// configs are received by the resolver, and the result will be provided to the
// Balancer in UpdateClientConnState.
//
// NOTE: this function must only be called during initialization time (i.e. in
// an init() function), and is not thread-safe. If multiple Balancers are
// registered with the same name, the one registered last will take effect.
func Register(b Builder) {
name := strings.ToLower(b.Name())
if name != b.Name() {
// TODO: Skip the use of strings.ToLower() to index the map after v1.59
// is released to switch to case sensitive balancer registry. Also,
// remove this warning and update the docstrings for Register and Get.
logger.Warningf("Balancer registered with name %q. grpc-go will be switching to case sensitive balancer registries soon", b.Name())
}
m[name] = b
}
// unregisterForTesting deletes the balancer with the given name from the
// balancer map.
//
// This function is not thread-safe.
func unregisterForTesting(name string) {
delete(m, name)
}
func init() {
internal.BalancerUnregister = unregisterForTesting
internal.ConnectedAddress = connectedAddress
internal.SetConnectedAddress = setConnectedAddress
}
// Get returns the resolver builder registered with the given name.
// Note that the compare is done in a case-insensitive fashion.
// If no builder is register with the name, nil will be returned.
func Get(name string) Builder {
if strings.ToLower(name) != name {
// TODO: Skip the use of strings.ToLower() to index the map after v1.59
// is released to switch to case sensitive balancer registry. Also,
// remove this warning and update the docstrings for Register and Get.
logger.Warningf("Balancer retrieved for name %q. grpc-go will be switching to case sensitive balancer registries soon", name)
}
if b, ok := m[strings.ToLower(name)]; ok {
return b
}
return nil
}
// NewSubConnOptions contains options to create new SubConn.
type NewSubConnOptions struct {
// CredsBundle is the credentials bundle that will be used in the created
// SubConn. If it's nil, the original creds from grpc DialOptions will be
// used.
//
// Deprecated: Use the Attributes field in resolver.Address to pass
// arbitrary data to the credential handshaker.
CredsBundle credentials.Bundle
// HealthCheckEnabled indicates whether health check service should be
// enabled on this SubConn
HealthCheckEnabled bool
// StateListener is called when the state of the subconn changes. If nil,
// Balancer.UpdateSubConnState will be called instead. Will never be
// invoked until after Connect() is called on the SubConn created with
// these options.
StateListener func(SubConnState)
}
// State contains the balancer's state relevant to the gRPC ClientConn.
type State struct {
// State contains the connectivity state of the balancer, which is used to
// determine the state of the ClientConn.
ConnectivityState connectivity.State
// Picker is used to choose connections (SubConns) for RPCs.
Picker Picker
}
// ClientConn represents a gRPC ClientConn.
//
// This interface is to be implemented by gRPC. Users should not need a
// brand new implementation of this interface. For the situations like
// testing, the new implementation should embed this interface. This allows
// gRPC to add new methods to this interface.
type ClientConn interface {
// NewSubConn is called by balancer to create a new SubConn.
// It doesn't block and wait for the connections to be established.
// Behaviors of the SubConn can be controlled by options.
//
// Deprecated: please be aware that in a future version, SubConns will only
// support one address per SubConn.
NewSubConn([]resolver.Address, NewSubConnOptions) (SubConn, error)
// RemoveSubConn removes the SubConn from ClientConn.
// The SubConn will be shutdown.
//
// Deprecated: use SubConn.Shutdown instead.
RemoveSubConn(SubConn)
// UpdateAddresses updates the addresses used in the passed in SubConn.
// gRPC checks if the currently connected address is still in the new list.
// If so, the connection will be kept. Else, the connection will be
// gracefully closed, and a new connection will be created.
//
// This may trigger a state transition for the SubConn.
//
// Deprecated: this method will be removed. Create new SubConns for new
// addresses instead.
UpdateAddresses(SubConn, []resolver.Address)
// UpdateState notifies gRPC that the balancer's internal state has
// changed.
//
// gRPC will update the connectivity state of the ClientConn, and will call
// Pick on the new Picker to pick new SubConns.
UpdateState(State)
// ResolveNow is called by balancer to notify gRPC to do a name resolving.
ResolveNow(resolver.ResolveNowOptions)
// Target returns the dial target for this ClientConn.
//
// Deprecated: Use the Target field in the BuildOptions instead.
Target() string
}
// BuildOptions contains additional information for Build.
type BuildOptions struct {
// DialCreds is the transport credentials to use when communicating with a
// remote load balancer server. Balancer implementations which do not
// communicate with a remote load balancer server can ignore this field.
DialCreds credentials.TransportCredentials
// CredsBundle is the credentials bundle to use when communicating with a
// remote load balancer server. Balancer implementations which do not
// communicate with a remote load balancer server can ignore this field.
CredsBundle credentials.Bundle
// Dialer is the custom dialer to use when communicating with a remote load
// balancer server. Balancer implementations which do not communicate with a
// remote load balancer server can ignore this field.
Dialer func(context.Context, string) (net.Conn, error)
// Authority is the server name to use as part of the authentication
// handshake when communicating with a remote load balancer server. Balancer
// implementations which do not communicate with a remote load balancer
// server can ignore this field.
Authority string
// ChannelzParent is the parent ClientConn's channelz channel.
ChannelzParent channelz.Identifier
// CustomUserAgent is the custom user agent set on the parent ClientConn.
// The balancer should set the same custom user agent if it creates a
// ClientConn.
CustomUserAgent string
// Target contains the parsed address info of the dial target. It is the
// same resolver.Target as passed to the resolver. See the documentation for
// the resolver.Target type for details about what it contains.
Target resolver.Target
// MetricsRecorder is the metrics recorder that balancers can use to record
// metrics. Balancer implementations which do not register metrics on
// metrics registry and record on them can ignore this field.
MetricsRecorder estats.MetricsRecorder
}
// Builder creates a balancer.
type Builder interface {
// Build creates a new balancer with the ClientConn.
Build(cc ClientConn, opts BuildOptions) Balancer
// Name returns the name of balancers built by this builder.
// It will be used to pick balancers (for example in service config).
Name() string
}
// ConfigParser parses load balancer configs.
type ConfigParser interface {
// ParseConfig parses the JSON load balancer config provided into an
// internal form or returns an error if the config is invalid. For future
// compatibility reasons, unknown fields in the config should be ignored.
ParseConfig(LoadBalancingConfigJSON json.RawMessage) (serviceconfig.LoadBalancingConfig, error)
}
// PickInfo contains additional information for the Pick operation.
type PickInfo struct {
// FullMethodName is the method name that NewClientStream() is called
// with. The canonical format is /service/Method.
FullMethodName string
// Ctx is the RPC's context, and may contain relevant RPC-level information
// like the outgoing header metadata.
Ctx context.Context
}
// DoneInfo contains additional information for done.
type DoneInfo struct {
// Err is the rpc error the RPC finished with. It could be nil.
Err error
// Trailer contains the metadata from the RPC's trailer, if present.
Trailer metadata.MD
// BytesSent indicates if any bytes have been sent to the server.
BytesSent bool
// BytesReceived indicates if any byte has been received from the server.
BytesReceived bool
// ServerLoad is the load received from server. It's usually sent as part of
// trailing metadata.
//
// The only supported type now is *orca_v3.LoadReport.
ServerLoad any
}
var (
// ErrNoSubConnAvailable indicates no SubConn is available for pick().
// gRPC will block the RPC until a new picker is available via UpdateState().
ErrNoSubConnAvailable = errors.New("no SubConn is available")
// ErrTransientFailure indicates all SubConns are in TransientFailure.
// WaitForReady RPCs will block, non-WaitForReady RPCs will fail.
//
// Deprecated: return an appropriate error based on the last resolution or
// connection attempt instead. The behavior is the same for any non-gRPC
// status error.
ErrTransientFailure = errors.New("all SubConns are in TransientFailure")
)
// PickResult contains information related to a connection chosen for an RPC.
type PickResult struct {
// SubConn is the connection to use for this pick, if its state is Ready.
// If the state is not Ready, gRPC will block the RPC until a new Picker is
// provided by the balancer (using ClientConn.UpdateState). The SubConn
// must be one returned by ClientConn.NewSubConn.
SubConn SubConn
// Done is called when the RPC is completed. If the SubConn is not ready,
// this will be called with a nil parameter. If the SubConn is not a valid
// type, Done may not be called. May be nil if the balancer does not wish
// to be notified when the RPC completes.
Done func(DoneInfo)
// Metadata provides a way for LB policies to inject arbitrary per-call
// metadata. Any metadata returned here will be merged with existing
// metadata added by the client application.
//
// LB policies with child policies are responsible for propagating metadata
// injected by their children to the ClientConn, as part of Pick().
Metadata metadata.MD
}
// TransientFailureError returns e. It exists for backward compatibility and
// will be deleted soon.
//
// Deprecated: no longer necessary, picker errors are treated this way by
// default.
func TransientFailureError(e error) error { return e }
// Picker is used by gRPC to pick a SubConn to send an RPC.
// Balancer is expected to generate a new picker from its snapshot every time its
// internal state has changed.
//
// The pickers used by gRPC can be updated by ClientConn.UpdateState().
type Picker interface {
// Pick returns the connection to use for this RPC and related information.
//
// Pick should not block. If the balancer needs to do I/O or any blocking
// or time-consuming work to service this call, it should return
// ErrNoSubConnAvailable, and the Pick call will be repeated by gRPC when
// the Picker is updated (using ClientConn.UpdateState).
//
// If an error is returned:
//
// - If the error is ErrNoSubConnAvailable, gRPC will block until a new
// Picker is provided by the balancer (using ClientConn.UpdateState).
//
// - If the error is a status error (implemented by the grpc/status
// package), gRPC will terminate the RPC with the code and message
// provided.
//
// - For all other errors, wait for ready RPCs will wait, but non-wait for
// ready RPCs will be terminated with this error's Error() string and
// status code Unavailable.
Pick(info PickInfo) (PickResult, error)
}
// Balancer takes input from gRPC, manages SubConns, and collects and aggregates
// the connectivity states.
//
// It also generates and updates the Picker used by gRPC to pick SubConns for RPCs.
//
// UpdateClientConnState, ResolverError, UpdateSubConnState, and Close are
// guaranteed to be called synchronously from the same goroutine. There's no
// guarantee on picker.Pick, it may be called anytime.
type Balancer interface {
// UpdateClientConnState is called by gRPC when the state of the ClientConn
// changes. If the error returned is ErrBadResolverState, the ClientConn
// will begin calling ResolveNow on the active name resolver with
// exponential backoff until a subsequent call to UpdateClientConnState
// returns a nil error. Any other errors are currently ignored.
UpdateClientConnState(ClientConnState) error
// ResolverError is called by gRPC when the name resolver reports an error.
ResolverError(error)
// UpdateSubConnState is called by gRPC when the state of a SubConn
// changes.
//
// Deprecated: Use NewSubConnOptions.StateListener when creating the
// SubConn instead.
UpdateSubConnState(SubConn, SubConnState)
// Close closes the balancer. The balancer is not currently required to
// call SubConn.Shutdown for its existing SubConns; however, this will be
// required in a future release, so it is recommended.
Close()
}
// ExitIdler is an optional interface for balancers to implement. If
// implemented, ExitIdle will be called when ClientConn.Connect is called, if
// the ClientConn is idle. If unimplemented, ClientConn.Connect will cause
// all SubConns to connect.
//
// Notice: it will be required for all balancers to implement this in a future
// release.
type ExitIdler interface {
// ExitIdle instructs the LB policy to reconnect to backends / exit the
// IDLE state, if appropriate and possible. Note that SubConns that enter
// the IDLE state will not reconnect until SubConn.Connect is called.
ExitIdle()
}
// ClientConnState describes the state of a ClientConn relevant to the
// balancer.
type ClientConnState struct {
ResolverState resolver.State
// The parsed load balancing configuration returned by the builder's
// ParseConfig method, if implemented.
BalancerConfig serviceconfig.LoadBalancingConfig
}
// ErrBadResolverState may be returned by UpdateClientConnState to indicate a
// problem with the provided name resolver data.
var ErrBadResolverState = errors.New("bad resolver state")

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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package base
import (
"errors"
"fmt"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/resolver"
)
var logger = grpclog.Component("balancer")
type baseBuilder struct {
name string
pickerBuilder PickerBuilder
config Config
}
func (bb *baseBuilder) Build(cc balancer.ClientConn, _ balancer.BuildOptions) balancer.Balancer {
bal := &baseBalancer{
cc: cc,
pickerBuilder: bb.pickerBuilder,
subConns: resolver.NewAddressMap(),
scStates: make(map[balancer.SubConn]connectivity.State),
csEvltr: &balancer.ConnectivityStateEvaluator{},
config: bb.config,
state: connectivity.Connecting,
}
// Initialize picker to a picker that always returns
// ErrNoSubConnAvailable, because when state of a SubConn changes, we
// may call UpdateState with this picker.
bal.picker = NewErrPicker(balancer.ErrNoSubConnAvailable)
return bal
}
func (bb *baseBuilder) Name() string {
return bb.name
}
type baseBalancer struct {
cc balancer.ClientConn
pickerBuilder PickerBuilder
csEvltr *balancer.ConnectivityStateEvaluator
state connectivity.State
subConns *resolver.AddressMap
scStates map[balancer.SubConn]connectivity.State
picker balancer.Picker
config Config
resolverErr error // the last error reported by the resolver; cleared on successful resolution
connErr error // the last connection error; cleared upon leaving TransientFailure
}
func (b *baseBalancer) ResolverError(err error) {
b.resolverErr = err
if b.subConns.Len() == 0 {
b.state = connectivity.TransientFailure
}
if b.state != connectivity.TransientFailure {
// The picker will not change since the balancer does not currently
// report an error.
return
}
b.regeneratePicker()
b.cc.UpdateState(balancer.State{
ConnectivityState: b.state,
Picker: b.picker,
})
}
func (b *baseBalancer) UpdateClientConnState(s balancer.ClientConnState) error {
// TODO: handle s.ResolverState.ServiceConfig?
if logger.V(2) {
logger.Info("base.baseBalancer: got new ClientConn state: ", s)
}
// Successful resolution; clear resolver error and ensure we return nil.
b.resolverErr = nil
// addrsSet is the set converted from addrs, it's used for quick lookup of an address.
addrsSet := resolver.NewAddressMap()
for _, a := range s.ResolverState.Addresses {
addrsSet.Set(a, nil)
if _, ok := b.subConns.Get(a); !ok {
// a is a new address (not existing in b.subConns).
var sc balancer.SubConn
opts := balancer.NewSubConnOptions{
HealthCheckEnabled: b.config.HealthCheck,
StateListener: func(scs balancer.SubConnState) { b.updateSubConnState(sc, scs) },
}
sc, err := b.cc.NewSubConn([]resolver.Address{a}, opts)
if err != nil {
logger.Warningf("base.baseBalancer: failed to create new SubConn: %v", err)
continue
}
b.subConns.Set(a, sc)
b.scStates[sc] = connectivity.Idle
b.csEvltr.RecordTransition(connectivity.Shutdown, connectivity.Idle)
sc.Connect()
}
}
for _, a := range b.subConns.Keys() {
sci, _ := b.subConns.Get(a)
sc := sci.(balancer.SubConn)
// a was removed by resolver.
if _, ok := addrsSet.Get(a); !ok {
sc.Shutdown()
b.subConns.Delete(a)
// Keep the state of this sc in b.scStates until sc's state becomes Shutdown.
// The entry will be deleted in updateSubConnState.
}
}
// If resolver state contains no addresses, return an error so ClientConn
// will trigger re-resolve. Also records this as a resolver error, so when
// the overall state turns transient failure, the error message will have
// the zero address information.
if len(s.ResolverState.Addresses) == 0 {
b.ResolverError(errors.New("produced zero addresses"))
return balancer.ErrBadResolverState
}
b.regeneratePicker()
b.cc.UpdateState(balancer.State{ConnectivityState: b.state, Picker: b.picker})
return nil
}
// mergeErrors builds an error from the last connection error and the last
// resolver error. Must only be called if b.state is TransientFailure.
func (b *baseBalancer) mergeErrors() error {
// connErr must always be non-nil unless there are no SubConns, in which
// case resolverErr must be non-nil.
if b.connErr == nil {
return fmt.Errorf("last resolver error: %v", b.resolverErr)
}
if b.resolverErr == nil {
return fmt.Errorf("last connection error: %v", b.connErr)
}
return fmt.Errorf("last connection error: %v; last resolver error: %v", b.connErr, b.resolverErr)
}
// regeneratePicker takes a snapshot of the balancer, and generates a picker
// from it. The picker is
// - errPicker if the balancer is in TransientFailure,
// - built by the pickerBuilder with all READY SubConns otherwise.
func (b *baseBalancer) regeneratePicker() {
if b.state == connectivity.TransientFailure {
b.picker = NewErrPicker(b.mergeErrors())
return
}
readySCs := make(map[balancer.SubConn]SubConnInfo)
// Filter out all ready SCs from full subConn map.
for _, addr := range b.subConns.Keys() {
sci, _ := b.subConns.Get(addr)
sc := sci.(balancer.SubConn)
if st, ok := b.scStates[sc]; ok && st == connectivity.Ready {
readySCs[sc] = SubConnInfo{Address: addr}
}
}
b.picker = b.pickerBuilder.Build(PickerBuildInfo{ReadySCs: readySCs})
}
// UpdateSubConnState is a nop because a StateListener is always set in NewSubConn.
func (b *baseBalancer) UpdateSubConnState(sc balancer.SubConn, state balancer.SubConnState) {
logger.Errorf("base.baseBalancer: UpdateSubConnState(%v, %+v) called unexpectedly", sc, state)
}
func (b *baseBalancer) updateSubConnState(sc balancer.SubConn, state balancer.SubConnState) {
s := state.ConnectivityState
if logger.V(2) {
logger.Infof("base.baseBalancer: handle SubConn state change: %p, %v", sc, s)
}
oldS, ok := b.scStates[sc]
if !ok {
if logger.V(2) {
logger.Infof("base.baseBalancer: got state changes for an unknown SubConn: %p, %v", sc, s)
}
return
}
if oldS == connectivity.TransientFailure &&
(s == connectivity.Connecting || s == connectivity.Idle) {
// Once a subconn enters TRANSIENT_FAILURE, ignore subsequent IDLE or
// CONNECTING transitions to prevent the aggregated state from being
// always CONNECTING when many backends exist but are all down.
if s == connectivity.Idle {
sc.Connect()
}
return
}
b.scStates[sc] = s
switch s {
case connectivity.Idle:
sc.Connect()
case connectivity.Shutdown:
// When an address was removed by resolver, b called Shutdown but kept
// the sc's state in scStates. Remove state for this sc here.
delete(b.scStates, sc)
case connectivity.TransientFailure:
// Save error to be reported via picker.
b.connErr = state.ConnectionError
}
b.state = b.csEvltr.RecordTransition(oldS, s)
// Regenerate picker when one of the following happens:
// - this sc entered or left ready
// - the aggregated state of balancer is TransientFailure
// (may need to update error message)
if (s == connectivity.Ready) != (oldS == connectivity.Ready) ||
b.state == connectivity.TransientFailure {
b.regeneratePicker()
}
b.cc.UpdateState(balancer.State{ConnectivityState: b.state, Picker: b.picker})
}
// Close is a nop because base balancer doesn't have internal state to clean up,
// and it doesn't need to call Shutdown for the SubConns.
func (b *baseBalancer) Close() {
}
// ExitIdle is a nop because the base balancer attempts to stay connected to
// all SubConns at all times.
func (b *baseBalancer) ExitIdle() {
}
// NewErrPicker returns a Picker that always returns err on Pick().
func NewErrPicker(err error) balancer.Picker {
return &errPicker{err: err}
}
// NewErrPickerV2 is temporarily defined for backward compatibility reasons.
//
// Deprecated: use NewErrPicker instead.
var NewErrPickerV2 = NewErrPicker
type errPicker struct {
err error // Pick() always returns this err.
}
func (p *errPicker) Pick(balancer.PickInfo) (balancer.PickResult, error) {
return balancer.PickResult{}, p.err
}

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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package base defines a balancer base that can be used to build balancers with
// different picking algorithms.
//
// The base balancer creates a new SubConn for each resolved address. The
// provided picker will only be notified about READY SubConns.
//
// This package is the base of round_robin balancer, its purpose is to be used
// to build round_robin like balancers with complex picking algorithms.
// Balancers with more complicated logic should try to implement a balancer
// builder from scratch.
//
// All APIs in this package are experimental.
package base
import (
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/resolver"
)
// PickerBuilder creates balancer.Picker.
type PickerBuilder interface {
// Build returns a picker that will be used by gRPC to pick a SubConn.
Build(info PickerBuildInfo) balancer.Picker
}
// PickerBuildInfo contains information needed by the picker builder to
// construct a picker.
type PickerBuildInfo struct {
// ReadySCs is a map from all ready SubConns to the Addresses used to
// create them.
ReadySCs map[balancer.SubConn]SubConnInfo
}
// SubConnInfo contains information about a SubConn created by the base
// balancer.
type SubConnInfo struct {
Address resolver.Address // the address used to create this SubConn
}
// Config contains the config info about the base balancer builder.
type Config struct {
// HealthCheck indicates whether health checking should be enabled for this specific balancer.
HealthCheck bool
}
// NewBalancerBuilder returns a base balancer builder configured by the provided config.
func NewBalancerBuilder(name string, pb PickerBuilder, config Config) balancer.Builder {
return &baseBuilder{
name: name,
pickerBuilder: pb,
config: config,
}
}

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/*
*
* Copyright 2022 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package balancer
import "google.golang.org/grpc/connectivity"
// ConnectivityStateEvaluator takes the connectivity states of multiple SubConns
// and returns one aggregated connectivity state.
//
// It's not thread safe.
type ConnectivityStateEvaluator struct {
numReady uint64 // Number of addrConns in ready state.
numConnecting uint64 // Number of addrConns in connecting state.
numTransientFailure uint64 // Number of addrConns in transient failure state.
numIdle uint64 // Number of addrConns in idle state.
}
// RecordTransition records state change happening in subConn and based on that
// it evaluates what aggregated state should be.
//
// - If at least one SubConn in Ready, the aggregated state is Ready;
// - Else if at least one SubConn in Connecting, the aggregated state is Connecting;
// - Else if at least one SubConn is Idle, the aggregated state is Idle;
// - Else if at least one SubConn is TransientFailure (or there are no SubConns), the aggregated state is Transient Failure.
//
// Shutdown is not considered.
func (cse *ConnectivityStateEvaluator) RecordTransition(oldState, newState connectivity.State) connectivity.State {
// Update counters.
for idx, state := range []connectivity.State{oldState, newState} {
updateVal := 2*uint64(idx) - 1 // -1 for oldState and +1 for new.
switch state {
case connectivity.Ready:
cse.numReady += updateVal
case connectivity.Connecting:
cse.numConnecting += updateVal
case connectivity.TransientFailure:
cse.numTransientFailure += updateVal
case connectivity.Idle:
cse.numIdle += updateVal
}
}
return cse.CurrentState()
}
// CurrentState returns the current aggregate conn state by evaluating the counters
func (cse *ConnectivityStateEvaluator) CurrentState() connectivity.State {
// Evaluate.
if cse.numReady > 0 {
return connectivity.Ready
}
if cse.numConnecting > 0 {
return connectivity.Connecting
}
if cse.numIdle > 0 {
return connectivity.Idle
}
return connectivity.TransientFailure
}

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/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package state declares grpclb types to be set by resolvers wishing to pass
// information to grpclb via resolver.State Attributes.
package state
import (
"google.golang.org/grpc/resolver"
)
// keyType is the key to use for storing State in Attributes.
type keyType string
const key = keyType("grpc.grpclb.state")
// State contains gRPCLB-relevant data passed from the name resolver.
type State struct {
// BalancerAddresses contains the remote load balancer address(es). If
// set, overrides any resolver-provided addresses with Type of GRPCLB.
BalancerAddresses []resolver.Address
}
// Set returns a copy of the provided state with attributes containing s. s's
// data should not be mutated after calling Set.
func Set(state resolver.State, s *State) resolver.State {
state.Attributes = state.Attributes.WithValue(key, s)
return state
}
// Get returns the grpclb State in the resolver.State, or nil if not present.
// The returned data should not be mutated.
func Get(state resolver.State) *State {
s, _ := state.Attributes.Value(key).(*State)
return s
}

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/*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package internal contains code internal to the pickfirst package.
package internal
import (
rand "math/rand/v2"
"time"
)
var (
// RandShuffle pseudo-randomizes the order of addresses.
RandShuffle = rand.Shuffle
// TimeAfterFunc allows mocking the timer for testing connection delay
// related functionality.
TimeAfterFunc = func(d time.Duration, f func()) func() {
timer := time.AfterFunc(d, f)
return func() { timer.Stop() }
}
)

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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package pickfirst contains the pick_first load balancing policy.
package pickfirst
import (
"encoding/json"
"errors"
"fmt"
rand "math/rand/v2"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/balancer/pickfirst/internal"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal/envconfig"
internalgrpclog "google.golang.org/grpc/internal/grpclog"
"google.golang.org/grpc/internal/pretty"
"google.golang.org/grpc/resolver"
"google.golang.org/grpc/serviceconfig"
_ "google.golang.org/grpc/balancer/pickfirst/pickfirstleaf" // For automatically registering the new pickfirst if required.
)
func init() {
if envconfig.NewPickFirstEnabled {
return
}
balancer.Register(pickfirstBuilder{})
}
var logger = grpclog.Component("pick-first-lb")
const (
// Name is the name of the pick_first balancer.
Name = "pick_first"
logPrefix = "[pick-first-lb %p] "
)
type pickfirstBuilder struct{}
func (pickfirstBuilder) Build(cc balancer.ClientConn, _ balancer.BuildOptions) balancer.Balancer {
b := &pickfirstBalancer{cc: cc}
b.logger = internalgrpclog.NewPrefixLogger(logger, fmt.Sprintf(logPrefix, b))
return b
}
func (pickfirstBuilder) Name() string {
return Name
}
type pfConfig struct {
serviceconfig.LoadBalancingConfig `json:"-"`
// If set to true, instructs the LB policy to shuffle the order of the list
// of endpoints received from the name resolver before attempting to
// connect to them.
ShuffleAddressList bool `json:"shuffleAddressList"`
}
func (pickfirstBuilder) ParseConfig(js json.RawMessage) (serviceconfig.LoadBalancingConfig, error) {
var cfg pfConfig
if err := json.Unmarshal(js, &cfg); err != nil {
return nil, fmt.Errorf("pickfirst: unable to unmarshal LB policy config: %s, error: %v", string(js), err)
}
return cfg, nil
}
type pickfirstBalancer struct {
logger *internalgrpclog.PrefixLogger
state connectivity.State
cc balancer.ClientConn
subConn balancer.SubConn
}
func (b *pickfirstBalancer) ResolverError(err error) {
if b.logger.V(2) {
b.logger.Infof("Received error from the name resolver: %v", err)
}
if b.subConn == nil {
b.state = connectivity.TransientFailure
}
if b.state != connectivity.TransientFailure {
// The picker will not change since the balancer does not currently
// report an error.
return
}
b.cc.UpdateState(balancer.State{
ConnectivityState: connectivity.TransientFailure,
Picker: &picker{err: fmt.Errorf("name resolver error: %v", err)},
})
}
// Shuffler is an interface for shuffling an address list.
type Shuffler interface {
ShuffleAddressListForTesting(n int, swap func(i, j int))
}
// ShuffleAddressListForTesting pseudo-randomizes the order of addresses. n
// is the number of elements. swap swaps the elements with indexes i and j.
func ShuffleAddressListForTesting(n int, swap func(i, j int)) { rand.Shuffle(n, swap) }
func (b *pickfirstBalancer) UpdateClientConnState(state balancer.ClientConnState) error {
if len(state.ResolverState.Addresses) == 0 && len(state.ResolverState.Endpoints) == 0 {
// The resolver reported an empty address list. Treat it like an error by
// calling b.ResolverError.
if b.subConn != nil {
// Shut down the old subConn. All addresses were removed, so it is
// no longer valid.
b.subConn.Shutdown()
b.subConn = nil
}
b.ResolverError(errors.New("produced zero addresses"))
return balancer.ErrBadResolverState
}
// We don't have to guard this block with the env var because ParseConfig
// already does so.
cfg, ok := state.BalancerConfig.(pfConfig)
if state.BalancerConfig != nil && !ok {
return fmt.Errorf("pickfirst: received illegal BalancerConfig (type %T): %v", state.BalancerConfig, state.BalancerConfig)
}
if b.logger.V(2) {
b.logger.Infof("Received new config %s, resolver state %s", pretty.ToJSON(cfg), pretty.ToJSON(state.ResolverState))
}
var addrs []resolver.Address
if endpoints := state.ResolverState.Endpoints; len(endpoints) != 0 {
// Perform the optional shuffling described in gRFC A62. The shuffling will
// change the order of endpoints but not touch the order of the addresses
// within each endpoint. - A61
if cfg.ShuffleAddressList {
endpoints = append([]resolver.Endpoint{}, endpoints...)
internal.RandShuffle(len(endpoints), func(i, j int) { endpoints[i], endpoints[j] = endpoints[j], endpoints[i] })
}
// "Flatten the list by concatenating the ordered list of addresses for each
// of the endpoints, in order." - A61
for _, endpoint := range endpoints {
// "In the flattened list, interleave addresses from the two address
// families, as per RFC-8304 section 4." - A61
// TODO: support the above language.
addrs = append(addrs, endpoint.Addresses...)
}
} else {
// Endpoints not set, process addresses until we migrate resolver
// emissions fully to Endpoints. The top channel does wrap emitted
// addresses with endpoints, however some balancers such as weighted
// target do not forward the corresponding correct endpoints down/split
// endpoints properly. Once all balancers correctly forward endpoints
// down, can delete this else conditional.
addrs = state.ResolverState.Addresses
if cfg.ShuffleAddressList {
addrs = append([]resolver.Address{}, addrs...)
rand.Shuffle(len(addrs), func(i, j int) { addrs[i], addrs[j] = addrs[j], addrs[i] })
}
}
if b.subConn != nil {
b.cc.UpdateAddresses(b.subConn, addrs)
return nil
}
var subConn balancer.SubConn
subConn, err := b.cc.NewSubConn(addrs, balancer.NewSubConnOptions{
StateListener: func(state balancer.SubConnState) {
b.updateSubConnState(subConn, state)
},
})
if err != nil {
if b.logger.V(2) {
b.logger.Infof("Failed to create new SubConn: %v", err)
}
b.state = connectivity.TransientFailure
b.cc.UpdateState(balancer.State{
ConnectivityState: connectivity.TransientFailure,
Picker: &picker{err: fmt.Errorf("error creating connection: %v", err)},
})
return balancer.ErrBadResolverState
}
b.subConn = subConn
b.state = connectivity.Idle
b.cc.UpdateState(balancer.State{
ConnectivityState: connectivity.Connecting,
Picker: &picker{err: balancer.ErrNoSubConnAvailable},
})
b.subConn.Connect()
return nil
}
// UpdateSubConnState is unused as a StateListener is always registered when
// creating SubConns.
func (b *pickfirstBalancer) UpdateSubConnState(subConn balancer.SubConn, state balancer.SubConnState) {
b.logger.Errorf("UpdateSubConnState(%v, %+v) called unexpectedly", subConn, state)
}
func (b *pickfirstBalancer) updateSubConnState(subConn balancer.SubConn, state balancer.SubConnState) {
if b.logger.V(2) {
b.logger.Infof("Received SubConn state update: %p, %+v", subConn, state)
}
if b.subConn != subConn {
if b.logger.V(2) {
b.logger.Infof("Ignored state change because subConn is not recognized")
}
return
}
if state.ConnectivityState == connectivity.Shutdown {
b.subConn = nil
return
}
switch state.ConnectivityState {
case connectivity.Ready:
b.cc.UpdateState(balancer.State{
ConnectivityState: state.ConnectivityState,
Picker: &picker{result: balancer.PickResult{SubConn: subConn}},
})
case connectivity.Connecting:
if b.state == connectivity.TransientFailure {
// We stay in TransientFailure until we are Ready. See A62.
return
}
b.cc.UpdateState(balancer.State{
ConnectivityState: state.ConnectivityState,
Picker: &picker{err: balancer.ErrNoSubConnAvailable},
})
case connectivity.Idle:
if b.state == connectivity.TransientFailure {
// We stay in TransientFailure until we are Ready. Also kick the
// subConn out of Idle into Connecting. See A62.
b.subConn.Connect()
return
}
b.cc.UpdateState(balancer.State{
ConnectivityState: state.ConnectivityState,
Picker: &idlePicker{subConn: subConn},
})
case connectivity.TransientFailure:
b.cc.UpdateState(balancer.State{
ConnectivityState: state.ConnectivityState,
Picker: &picker{err: state.ConnectionError},
})
}
b.state = state.ConnectivityState
}
func (b *pickfirstBalancer) Close() {
}
func (b *pickfirstBalancer) ExitIdle() {
if b.subConn != nil && b.state == connectivity.Idle {
b.subConn.Connect()
}
}
type picker struct {
result balancer.PickResult
err error
}
func (p *picker) Pick(balancer.PickInfo) (balancer.PickResult, error) {
return p.result, p.err
}
// idlePicker is used when the SubConn is IDLE and kicks the SubConn into
// CONNECTING when Pick is called.
type idlePicker struct {
subConn balancer.SubConn
}
func (i *idlePicker) Pick(balancer.PickInfo) (balancer.PickResult, error) {
i.subConn.Connect()
return balancer.PickResult{}, balancer.ErrNoSubConnAvailable
}

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e2e/vendor/google.golang.org/grpc/balancer/pickfirst/pickfirstleaf/pickfirstleaf.go generated vendored Normal file
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@ -0,0 +1,932 @@
/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package pickfirstleaf contains the pick_first load balancing policy which
// will be the universal leaf policy after dualstack changes are implemented.
//
// # Experimental
//
// Notice: This package is EXPERIMENTAL and may be changed or removed in a
// later release.
package pickfirstleaf
import (
"encoding/json"
"errors"
"fmt"
"net"
"net/netip"
"sync"
"time"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/balancer/pickfirst/internal"
"google.golang.org/grpc/connectivity"
expstats "google.golang.org/grpc/experimental/stats"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal/envconfig"
internalgrpclog "google.golang.org/grpc/internal/grpclog"
"google.golang.org/grpc/internal/pretty"
"google.golang.org/grpc/resolver"
"google.golang.org/grpc/serviceconfig"
)
func init() {
if envconfig.NewPickFirstEnabled {
// Register as the default pick_first balancer.
Name = "pick_first"
}
balancer.Register(pickfirstBuilder{})
}
type (
// enableHealthListenerKeyType is a unique key type used in resolver
// attributes to indicate whether the health listener usage is enabled.
enableHealthListenerKeyType struct{}
// managedByPickfirstKeyType is an attribute key type to inform Outlier
// Detection that the generic health listener is being used.
// TODO: https://github.com/grpc/grpc-go/issues/7915 - Remove this when
// implementing the dualstack design. This is a hack. Once Dualstack is
// completed, outlier detection will stop sending ejection updates through
// the connectivity listener.
managedByPickfirstKeyType struct{}
)
var (
logger = grpclog.Component("pick-first-leaf-lb")
// Name is the name of the pick_first_leaf balancer.
// It is changed to "pick_first" in init() if this balancer is to be
// registered as the default pickfirst.
Name = "pick_first_leaf"
disconnectionsMetric = expstats.RegisterInt64Count(expstats.MetricDescriptor{
Name: "grpc.lb.pick_first.disconnections",
Description: "EXPERIMENTAL. Number of times the selected subchannel becomes disconnected.",
Unit: "disconnection",
Labels: []string{"grpc.target"},
Default: false,
})
connectionAttemptsSucceededMetric = expstats.RegisterInt64Count(expstats.MetricDescriptor{
Name: "grpc.lb.pick_first.connection_attempts_succeeded",
Description: "EXPERIMENTAL. Number of successful connection attempts.",
Unit: "attempt",
Labels: []string{"grpc.target"},
Default: false,
})
connectionAttemptsFailedMetric = expstats.RegisterInt64Count(expstats.MetricDescriptor{
Name: "grpc.lb.pick_first.connection_attempts_failed",
Description: "EXPERIMENTAL. Number of failed connection attempts.",
Unit: "attempt",
Labels: []string{"grpc.target"},
Default: false,
})
)
const (
// TODO: change to pick-first when this becomes the default pick_first policy.
logPrefix = "[pick-first-leaf-lb %p] "
// connectionDelayInterval is the time to wait for during the happy eyeballs
// pass before starting the next connection attempt.
connectionDelayInterval = 250 * time.Millisecond
)
type ipAddrFamily int
const (
// ipAddrFamilyUnknown represents strings that can't be parsed as an IP
// address.
ipAddrFamilyUnknown ipAddrFamily = iota
ipAddrFamilyV4
ipAddrFamilyV6
)
type pickfirstBuilder struct{}
func (pickfirstBuilder) Build(cc balancer.ClientConn, bo balancer.BuildOptions) balancer.Balancer {
b := &pickfirstBalancer{
cc: cc,
target: bo.Target.String(),
metricsRecorder: bo.MetricsRecorder, // ClientConn will always create a Metrics Recorder.
subConns: resolver.NewAddressMap(),
state: connectivity.Connecting,
cancelConnectionTimer: func() {},
}
b.logger = internalgrpclog.NewPrefixLogger(logger, fmt.Sprintf(logPrefix, b))
return b
}
func (b pickfirstBuilder) Name() string {
return Name
}
func (pickfirstBuilder) ParseConfig(js json.RawMessage) (serviceconfig.LoadBalancingConfig, error) {
var cfg pfConfig
if err := json.Unmarshal(js, &cfg); err != nil {
return nil, fmt.Errorf("pickfirst: unable to unmarshal LB policy config: %s, error: %v", string(js), err)
}
return cfg, nil
}
// EnableHealthListener updates the state to configure pickfirst for using a
// generic health listener.
func EnableHealthListener(state resolver.State) resolver.State {
state.Attributes = state.Attributes.WithValue(enableHealthListenerKeyType{}, true)
return state
}
// IsManagedByPickfirst returns whether an address belongs to a SubConn
// managed by the pickfirst LB policy.
// TODO: https://github.com/grpc/grpc-go/issues/7915 - This is a hack to disable
// outlier_detection via the with connectivity listener when using pick_first.
// Once Dualstack changes are complete, all SubConns will be created by
// pick_first and outlier detection will only use the health listener for
// ejection. This hack can then be removed.
func IsManagedByPickfirst(addr resolver.Address) bool {
return addr.BalancerAttributes.Value(managedByPickfirstKeyType{}) != nil
}
type pfConfig struct {
serviceconfig.LoadBalancingConfig `json:"-"`
// If set to true, instructs the LB policy to shuffle the order of the list
// of endpoints received from the name resolver before attempting to
// connect to them.
ShuffleAddressList bool `json:"shuffleAddressList"`
}
// scData keeps track of the current state of the subConn.
// It is not safe for concurrent access.
type scData struct {
// The following fields are initialized at build time and read-only after
// that.
subConn balancer.SubConn
addr resolver.Address
rawConnectivityState connectivity.State
// The effective connectivity state based on raw connectivity, health state
// and after following sticky TransientFailure behaviour defined in A62.
effectiveState connectivity.State
lastErr error
connectionFailedInFirstPass bool
}
func (b *pickfirstBalancer) newSCData(addr resolver.Address) (*scData, error) {
addr.BalancerAttributes = addr.BalancerAttributes.WithValue(managedByPickfirstKeyType{}, true)
sd := &scData{
rawConnectivityState: connectivity.Idle,
effectiveState: connectivity.Idle,
addr: addr,
}
sc, err := b.cc.NewSubConn([]resolver.Address{addr}, balancer.NewSubConnOptions{
StateListener: func(state balancer.SubConnState) {
b.updateSubConnState(sd, state)
},
})
if err != nil {
return nil, err
}
sd.subConn = sc
return sd, nil
}
type pickfirstBalancer struct {
// The following fields are initialized at build time and read-only after
// that and therefore do not need to be guarded by a mutex.
logger *internalgrpclog.PrefixLogger
cc balancer.ClientConn
target string
metricsRecorder expstats.MetricsRecorder // guaranteed to be non nil
// The mutex is used to ensure synchronization of updates triggered
// from the idle picker and the already serialized resolver,
// SubConn state updates.
mu sync.Mutex
// State reported to the channel based on SubConn states and resolver
// updates.
state connectivity.State
// scData for active subonns mapped by address.
subConns *resolver.AddressMap
addressList addressList
firstPass bool
numTF int
cancelConnectionTimer func()
healthCheckingEnabled bool
}
// ResolverError is called by the ClientConn when the name resolver produces
// an error or when pickfirst determined the resolver update to be invalid.
func (b *pickfirstBalancer) ResolverError(err error) {
b.mu.Lock()
defer b.mu.Unlock()
b.resolverErrorLocked(err)
}
func (b *pickfirstBalancer) resolverErrorLocked(err error) {
if b.logger.V(2) {
b.logger.Infof("Received error from the name resolver: %v", err)
}
// The picker will not change since the balancer does not currently
// report an error. If the balancer hasn't received a single good resolver
// update yet, transition to TRANSIENT_FAILURE.
if b.state != connectivity.TransientFailure && b.addressList.size() > 0 {
if b.logger.V(2) {
b.logger.Infof("Ignoring resolver error because balancer is using a previous good update.")
}
return
}
b.updateBalancerState(balancer.State{
ConnectivityState: connectivity.TransientFailure,
Picker: &picker{err: fmt.Errorf("name resolver error: %v", err)},
})
}
func (b *pickfirstBalancer) UpdateClientConnState(state balancer.ClientConnState) error {
b.mu.Lock()
defer b.mu.Unlock()
b.cancelConnectionTimer()
if len(state.ResolverState.Addresses) == 0 && len(state.ResolverState.Endpoints) == 0 {
// Cleanup state pertaining to the previous resolver state.
// Treat an empty address list like an error by calling b.ResolverError.
b.closeSubConnsLocked()
b.addressList.updateAddrs(nil)
b.resolverErrorLocked(errors.New("produced zero addresses"))
return balancer.ErrBadResolverState
}
b.healthCheckingEnabled = state.ResolverState.Attributes.Value(enableHealthListenerKeyType{}) != nil
cfg, ok := state.BalancerConfig.(pfConfig)
if state.BalancerConfig != nil && !ok {
return fmt.Errorf("pickfirst: received illegal BalancerConfig (type %T): %v: %w", state.BalancerConfig, state.BalancerConfig, balancer.ErrBadResolverState)
}
if b.logger.V(2) {
b.logger.Infof("Received new config %s, resolver state %s", pretty.ToJSON(cfg), pretty.ToJSON(state.ResolverState))
}
var newAddrs []resolver.Address
if endpoints := state.ResolverState.Endpoints; len(endpoints) != 0 {
// Perform the optional shuffling described in gRFC A62. The shuffling
// will change the order of endpoints but not touch the order of the
// addresses within each endpoint. - A61
if cfg.ShuffleAddressList {
endpoints = append([]resolver.Endpoint{}, endpoints...)
internal.RandShuffle(len(endpoints), func(i, j int) { endpoints[i], endpoints[j] = endpoints[j], endpoints[i] })
}
// "Flatten the list by concatenating the ordered list of addresses for
// each of the endpoints, in order." - A61
for _, endpoint := range endpoints {
newAddrs = append(newAddrs, endpoint.Addresses...)
}
} else {
// Endpoints not set, process addresses until we migrate resolver
// emissions fully to Endpoints. The top channel does wrap emitted
// addresses with endpoints, however some balancers such as weighted
// target do not forward the corresponding correct endpoints down/split
// endpoints properly. Once all balancers correctly forward endpoints
// down, can delete this else conditional.
newAddrs = state.ResolverState.Addresses
if cfg.ShuffleAddressList {
newAddrs = append([]resolver.Address{}, newAddrs...)
internal.RandShuffle(len(endpoints), func(i, j int) { endpoints[i], endpoints[j] = endpoints[j], endpoints[i] })
}
}
// If an address appears in multiple endpoints or in the same endpoint
// multiple times, we keep it only once. We will create only one SubConn
// for the address because an AddressMap is used to store SubConns.
// Not de-duplicating would result in attempting to connect to the same
// SubConn multiple times in the same pass. We don't want this.
newAddrs = deDupAddresses(newAddrs)
newAddrs = interleaveAddresses(newAddrs)
prevAddr := b.addressList.currentAddress()
prevSCData, found := b.subConns.Get(prevAddr)
prevAddrsCount := b.addressList.size()
isPrevRawConnectivityStateReady := found && prevSCData.(*scData).rawConnectivityState == connectivity.Ready
b.addressList.updateAddrs(newAddrs)
// If the previous ready SubConn exists in new address list,
// keep this connection and don't create new SubConns.
if isPrevRawConnectivityStateReady && b.addressList.seekTo(prevAddr) {
return nil
}
b.reconcileSubConnsLocked(newAddrs)
// If it's the first resolver update or the balancer was already READY
// (but the new address list does not contain the ready SubConn) or
// CONNECTING, enter CONNECTING.
// We may be in TRANSIENT_FAILURE due to a previous empty address list,
// we should still enter CONNECTING because the sticky TF behaviour
// mentioned in A62 applies only when the TRANSIENT_FAILURE is reported
// due to connectivity failures.
if isPrevRawConnectivityStateReady || b.state == connectivity.Connecting || prevAddrsCount == 0 {
// Start connection attempt at first address.
b.forceUpdateConcludedStateLocked(balancer.State{
ConnectivityState: connectivity.Connecting,
Picker: &picker{err: balancer.ErrNoSubConnAvailable},
})
b.startFirstPassLocked()
} else if b.state == connectivity.TransientFailure {
// If we're in TRANSIENT_FAILURE, we stay in TRANSIENT_FAILURE until
// we're READY. See A62.
b.startFirstPassLocked()
}
return nil
}
// UpdateSubConnState is unused as a StateListener is always registered when
// creating SubConns.
func (b *pickfirstBalancer) UpdateSubConnState(subConn balancer.SubConn, state balancer.SubConnState) {
b.logger.Errorf("UpdateSubConnState(%v, %+v) called unexpectedly", subConn, state)
}
func (b *pickfirstBalancer) Close() {
b.mu.Lock()
defer b.mu.Unlock()
b.closeSubConnsLocked()
b.cancelConnectionTimer()
b.state = connectivity.Shutdown
}
// ExitIdle moves the balancer out of idle state. It can be called concurrently
// by the idlePicker and clientConn so access to variables should be
// synchronized.
func (b *pickfirstBalancer) ExitIdle() {
b.mu.Lock()
defer b.mu.Unlock()
if b.state == connectivity.Idle {
b.startFirstPassLocked()
}
}
func (b *pickfirstBalancer) startFirstPassLocked() {
b.firstPass = true
b.numTF = 0
// Reset the connection attempt record for existing SubConns.
for _, sd := range b.subConns.Values() {
sd.(*scData).connectionFailedInFirstPass = false
}
b.requestConnectionLocked()
}
func (b *pickfirstBalancer) closeSubConnsLocked() {
for _, sd := range b.subConns.Values() {
sd.(*scData).subConn.Shutdown()
}
b.subConns = resolver.NewAddressMap()
}
// deDupAddresses ensures that each address appears only once in the slice.
func deDupAddresses(addrs []resolver.Address) []resolver.Address {
seenAddrs := resolver.NewAddressMap()
retAddrs := []resolver.Address{}
for _, addr := range addrs {
if _, ok := seenAddrs.Get(addr); ok {
continue
}
retAddrs = append(retAddrs, addr)
}
return retAddrs
}
// interleaveAddresses interleaves addresses of both families (IPv4 and IPv6)
// as per RFC-8305 section 4.
// Whichever address family is first in the list is followed by an address of
// the other address family; that is, if the first address in the list is IPv6,
// then the first IPv4 address should be moved up in the list to be second in
// the list. It doesn't support configuring "First Address Family Count", i.e.
// there will always be a single member of the first address family at the
// beginning of the interleaved list.
// Addresses that are neither IPv4 nor IPv6 are treated as part of a third
// "unknown" family for interleaving.
// See: https://datatracker.ietf.org/doc/html/rfc8305#autoid-6
func interleaveAddresses(addrs []resolver.Address) []resolver.Address {
familyAddrsMap := map[ipAddrFamily][]resolver.Address{}
interleavingOrder := []ipAddrFamily{}
for _, addr := range addrs {
family := addressFamily(addr.Addr)
if _, found := familyAddrsMap[family]; !found {
interleavingOrder = append(interleavingOrder, family)
}
familyAddrsMap[family] = append(familyAddrsMap[family], addr)
}
interleavedAddrs := make([]resolver.Address, 0, len(addrs))
for curFamilyIdx := 0; len(interleavedAddrs) < len(addrs); curFamilyIdx = (curFamilyIdx + 1) % len(interleavingOrder) {
// Some IP types may have fewer addresses than others, so we look for
// the next type that has a remaining member to add to the interleaved
// list.
family := interleavingOrder[curFamilyIdx]
remainingMembers := familyAddrsMap[family]
if len(remainingMembers) > 0 {
interleavedAddrs = append(interleavedAddrs, remainingMembers[0])
familyAddrsMap[family] = remainingMembers[1:]
}
}
return interleavedAddrs
}
// addressFamily returns the ipAddrFamily after parsing the address string.
// If the address isn't of the format "ip-address:port", it returns
// ipAddrFamilyUnknown. The address may be valid even if it's not an IP when
// using a resolver like passthrough where the address may be a hostname in
// some format that the dialer can resolve.
func addressFamily(address string) ipAddrFamily {
// Parse the IP after removing the port.
host, _, err := net.SplitHostPort(address)
if err != nil {
return ipAddrFamilyUnknown
}
ip, err := netip.ParseAddr(host)
if err != nil {
return ipAddrFamilyUnknown
}
switch {
case ip.Is4() || ip.Is4In6():
return ipAddrFamilyV4
case ip.Is6():
return ipAddrFamilyV6
default:
return ipAddrFamilyUnknown
}
}
// reconcileSubConnsLocked updates the active subchannels based on a new address
// list from the resolver. It does this by:
// - closing subchannels: any existing subchannels associated with addresses
// that are no longer in the updated list are shut down.
// - removing subchannels: entries for these closed subchannels are removed
// from the subchannel map.
//
// This ensures that the subchannel map accurately reflects the current set of
// addresses received from the name resolver.
func (b *pickfirstBalancer) reconcileSubConnsLocked(newAddrs []resolver.Address) {
newAddrsMap := resolver.NewAddressMap()
for _, addr := range newAddrs {
newAddrsMap.Set(addr, true)
}
for _, oldAddr := range b.subConns.Keys() {
if _, ok := newAddrsMap.Get(oldAddr); ok {
continue
}
val, _ := b.subConns.Get(oldAddr)
val.(*scData).subConn.Shutdown()
b.subConns.Delete(oldAddr)
}
}
// shutdownRemainingLocked shuts down remaining subConns. Called when a subConn
// becomes ready, which means that all other subConn must be shutdown.
func (b *pickfirstBalancer) shutdownRemainingLocked(selected *scData) {
b.cancelConnectionTimer()
for _, v := range b.subConns.Values() {
sd := v.(*scData)
if sd.subConn != selected.subConn {
sd.subConn.Shutdown()
}
}
b.subConns = resolver.NewAddressMap()
b.subConns.Set(selected.addr, selected)
}
// requestConnectionLocked starts connecting on the subchannel corresponding to
// the current address. If no subchannel exists, one is created. If the current
// subchannel is in TransientFailure, a connection to the next address is
// attempted until a subchannel is found.
func (b *pickfirstBalancer) requestConnectionLocked() {
if !b.addressList.isValid() {
return
}
var lastErr error
for valid := true; valid; valid = b.addressList.increment() {
curAddr := b.addressList.currentAddress()
sd, ok := b.subConns.Get(curAddr)
if !ok {
var err error
// We want to assign the new scData to sd from the outer scope,
// hence we can't use := below.
sd, err = b.newSCData(curAddr)
if err != nil {
// This should never happen, unless the clientConn is being shut
// down.
if b.logger.V(2) {
b.logger.Infof("Failed to create a subConn for address %v: %v", curAddr.String(), err)
}
// Do nothing, the LB policy will be closed soon.
return
}
b.subConns.Set(curAddr, sd)
}
scd := sd.(*scData)
switch scd.rawConnectivityState {
case connectivity.Idle:
scd.subConn.Connect()
b.scheduleNextConnectionLocked()
return
case connectivity.TransientFailure:
// The SubConn is being re-used and failed during a previous pass
// over the addressList. It has not completed backoff yet.
// Mark it as having failed and try the next address.
scd.connectionFailedInFirstPass = true
lastErr = scd.lastErr
continue
case connectivity.Connecting:
// Wait for the connection attempt to complete or the timer to fire
// before attempting the next address.
b.scheduleNextConnectionLocked()
return
default:
b.logger.Errorf("SubConn with unexpected state %v present in SubConns map.", scd.rawConnectivityState)
return
}
}
// All the remaining addresses in the list are in TRANSIENT_FAILURE, end the
// first pass if possible.
b.endFirstPassIfPossibleLocked(lastErr)
}
func (b *pickfirstBalancer) scheduleNextConnectionLocked() {
b.cancelConnectionTimer()
if !b.addressList.hasNext() {
return
}
curAddr := b.addressList.currentAddress()
cancelled := false // Access to this is protected by the balancer's mutex.
closeFn := internal.TimeAfterFunc(connectionDelayInterval, func() {
b.mu.Lock()
defer b.mu.Unlock()
// If the scheduled task is cancelled while acquiring the mutex, return.
if cancelled {
return
}
if b.logger.V(2) {
b.logger.Infof("Happy Eyeballs timer expired while waiting for connection to %q.", curAddr.Addr)
}
if b.addressList.increment() {
b.requestConnectionLocked()
}
})
// Access to the cancellation callback held by the balancer is guarded by
// the balancer's mutex, so it's safe to set the boolean from the callback.
b.cancelConnectionTimer = sync.OnceFunc(func() {
cancelled = true
closeFn()
})
}
func (b *pickfirstBalancer) updateSubConnState(sd *scData, newState balancer.SubConnState) {
b.mu.Lock()
defer b.mu.Unlock()
oldState := sd.rawConnectivityState
sd.rawConnectivityState = newState.ConnectivityState
// Previously relevant SubConns can still callback with state updates.
// To prevent pickers from returning these obsolete SubConns, this logic
// is included to check if the current list of active SubConns includes this
// SubConn.
if !b.isActiveSCData(sd) {
return
}
if newState.ConnectivityState == connectivity.Shutdown {
sd.effectiveState = connectivity.Shutdown
return
}
// Record a connection attempt when exiting CONNECTING.
if newState.ConnectivityState == connectivity.TransientFailure {
sd.connectionFailedInFirstPass = true
connectionAttemptsFailedMetric.Record(b.metricsRecorder, 1, b.target)
}
if newState.ConnectivityState == connectivity.Ready {
connectionAttemptsSucceededMetric.Record(b.metricsRecorder, 1, b.target)
b.shutdownRemainingLocked(sd)
if !b.addressList.seekTo(sd.addr) {
// This should not fail as we should have only one SubConn after
// entering READY. The SubConn should be present in the addressList.
b.logger.Errorf("Address %q not found address list in %v", sd.addr, b.addressList.addresses)
return
}
if !b.healthCheckingEnabled {
if b.logger.V(2) {
b.logger.Infof("SubConn %p reported connectivity state READY and the health listener is disabled. Transitioning SubConn to READY.", sd.subConn)
}
sd.effectiveState = connectivity.Ready
b.updateBalancerState(balancer.State{
ConnectivityState: connectivity.Ready,
Picker: &picker{result: balancer.PickResult{SubConn: sd.subConn}},
})
return
}
if b.logger.V(2) {
b.logger.Infof("SubConn %p reported connectivity state READY. Registering health listener.", sd.subConn)
}
// Send a CONNECTING update to take the SubConn out of sticky-TF if
// required.
sd.effectiveState = connectivity.Connecting
b.updateBalancerState(balancer.State{
ConnectivityState: connectivity.Connecting,
Picker: &picker{err: balancer.ErrNoSubConnAvailable},
})
sd.subConn.RegisterHealthListener(func(scs balancer.SubConnState) {
b.updateSubConnHealthState(sd, scs)
})
return
}
// If the LB policy is READY, and it receives a subchannel state change,
// it means that the READY subchannel has failed.
// A SubConn can also transition from CONNECTING directly to IDLE when
// a transport is successfully created, but the connection fails
// before the SubConn can send the notification for READY. We treat
// this as a successful connection and transition to IDLE.
// TODO: https://github.com/grpc/grpc-go/issues/7862 - Remove the second
// part of the if condition below once the issue is fixed.
if oldState == connectivity.Ready || (oldState == connectivity.Connecting && newState.ConnectivityState == connectivity.Idle) {
// Once a transport fails, the balancer enters IDLE and starts from
// the first address when the picker is used.
b.shutdownRemainingLocked(sd)
sd.effectiveState = newState.ConnectivityState
// READY SubConn interspliced in between CONNECTING and IDLE, need to
// account for that.
if oldState == connectivity.Connecting {
// A known issue (https://github.com/grpc/grpc-go/issues/7862)
// causes a race that prevents the READY state change notification.
// This works around it.
connectionAttemptsSucceededMetric.Record(b.metricsRecorder, 1, b.target)
}
disconnectionsMetric.Record(b.metricsRecorder, 1, b.target)
b.addressList.reset()
b.updateBalancerState(balancer.State{
ConnectivityState: connectivity.Idle,
Picker: &idlePicker{exitIdle: sync.OnceFunc(b.ExitIdle)},
})
return
}
if b.firstPass {
switch newState.ConnectivityState {
case connectivity.Connecting:
// The effective state can be in either IDLE, CONNECTING or
// TRANSIENT_FAILURE. If it's TRANSIENT_FAILURE, stay in
// TRANSIENT_FAILURE until it's READY. See A62.
if sd.effectiveState != connectivity.TransientFailure {
sd.effectiveState = connectivity.Connecting
b.updateBalancerState(balancer.State{
ConnectivityState: connectivity.Connecting,
Picker: &picker{err: balancer.ErrNoSubConnAvailable},
})
}
case connectivity.TransientFailure:
sd.lastErr = newState.ConnectionError
sd.effectiveState = connectivity.TransientFailure
// Since we're re-using common SubConns while handling resolver
// updates, we could receive an out of turn TRANSIENT_FAILURE from
// a pass over the previous address list. Happy Eyeballs will also
// cause out of order updates to arrive.
if curAddr := b.addressList.currentAddress(); equalAddressIgnoringBalAttributes(&curAddr, &sd.addr) {
b.cancelConnectionTimer()
if b.addressList.increment() {
b.requestConnectionLocked()
return
}
}
// End the first pass if we've seen a TRANSIENT_FAILURE from all
// SubConns once.
b.endFirstPassIfPossibleLocked(newState.ConnectionError)
}
return
}
// We have finished the first pass, keep re-connecting failing SubConns.
switch newState.ConnectivityState {
case connectivity.TransientFailure:
b.numTF = (b.numTF + 1) % b.subConns.Len()
sd.lastErr = newState.ConnectionError
if b.numTF%b.subConns.Len() == 0 {
b.updateBalancerState(balancer.State{
ConnectivityState: connectivity.TransientFailure,
Picker: &picker{err: newState.ConnectionError},
})
}
// We don't need to request re-resolution since the SubConn already
// does that before reporting TRANSIENT_FAILURE.
// TODO: #7534 - Move re-resolution requests from SubConn into
// pick_first.
case connectivity.Idle:
sd.subConn.Connect()
}
}
// endFirstPassIfPossibleLocked ends the first happy-eyeballs pass if all the
// addresses are tried and their SubConns have reported a failure.
func (b *pickfirstBalancer) endFirstPassIfPossibleLocked(lastErr error) {
// An optimization to avoid iterating over the entire SubConn map.
if b.addressList.isValid() {
return
}
// Connect() has been called on all the SubConns. The first pass can be
// ended if all the SubConns have reported a failure.
for _, v := range b.subConns.Values() {
sd := v.(*scData)
if !sd.connectionFailedInFirstPass {
return
}
}
b.firstPass = false
b.updateBalancerState(balancer.State{
ConnectivityState: connectivity.TransientFailure,
Picker: &picker{err: lastErr},
})
// Start re-connecting all the SubConns that are already in IDLE.
for _, v := range b.subConns.Values() {
sd := v.(*scData)
if sd.rawConnectivityState == connectivity.Idle {
sd.subConn.Connect()
}
}
}
func (b *pickfirstBalancer) isActiveSCData(sd *scData) bool {
activeSD, found := b.subConns.Get(sd.addr)
return found && activeSD == sd
}
func (b *pickfirstBalancer) updateSubConnHealthState(sd *scData, state balancer.SubConnState) {
b.mu.Lock()
defer b.mu.Unlock()
// Previously relevant SubConns can still callback with state updates.
// To prevent pickers from returning these obsolete SubConns, this logic
// is included to check if the current list of active SubConns includes
// this SubConn.
if !b.isActiveSCData(sd) {
return
}
sd.effectiveState = state.ConnectivityState
switch state.ConnectivityState {
case connectivity.Ready:
b.updateBalancerState(balancer.State{
ConnectivityState: connectivity.Ready,
Picker: &picker{result: balancer.PickResult{SubConn: sd.subConn}},
})
case connectivity.TransientFailure:
b.updateBalancerState(balancer.State{
ConnectivityState: connectivity.TransientFailure,
Picker: &picker{err: fmt.Errorf("pickfirst: health check failure: %v", state.ConnectionError)},
})
case connectivity.Connecting:
b.updateBalancerState(balancer.State{
ConnectivityState: connectivity.Connecting,
Picker: &picker{err: balancer.ErrNoSubConnAvailable},
})
default:
b.logger.Errorf("Got unexpected health update for SubConn %p: %v", state)
}
}
// updateBalancerState stores the state reported to the channel and calls
// ClientConn.UpdateState(). As an optimization, it avoids sending duplicate
// updates to the channel.
func (b *pickfirstBalancer) updateBalancerState(newState balancer.State) {
// In case of TransientFailures allow the picker to be updated to update
// the connectivity error, in all other cases don't send duplicate state
// updates.
if newState.ConnectivityState == b.state && b.state != connectivity.TransientFailure {
return
}
b.forceUpdateConcludedStateLocked(newState)
}
// forceUpdateConcludedStateLocked stores the state reported to the channel and
// calls ClientConn.UpdateState().
// A separate function is defined to force update the ClientConn state since the
// channel doesn't correctly assume that LB policies start in CONNECTING and
// relies on LB policy to send an initial CONNECTING update.
func (b *pickfirstBalancer) forceUpdateConcludedStateLocked(newState balancer.State) {
b.state = newState.ConnectivityState
b.cc.UpdateState(newState)
}
type picker struct {
result balancer.PickResult
err error
}
func (p *picker) Pick(balancer.PickInfo) (balancer.PickResult, error) {
return p.result, p.err
}
// idlePicker is used when the SubConn is IDLE and kicks the SubConn into
// CONNECTING when Pick is called.
type idlePicker struct {
exitIdle func()
}
func (i *idlePicker) Pick(balancer.PickInfo) (balancer.PickResult, error) {
i.exitIdle()
return balancer.PickResult{}, balancer.ErrNoSubConnAvailable
}
// addressList manages sequentially iterating over addresses present in a list
// of endpoints. It provides a 1 dimensional view of the addresses present in
// the endpoints.
// This type is not safe for concurrent access.
type addressList struct {
addresses []resolver.Address
idx int
}
func (al *addressList) isValid() bool {
return al.idx < len(al.addresses)
}
func (al *addressList) size() int {
return len(al.addresses)
}
// increment moves to the next index in the address list.
// This method returns false if it went off the list, true otherwise.
func (al *addressList) increment() bool {
if !al.isValid() {
return false
}
al.idx++
return al.idx < len(al.addresses)
}
// currentAddress returns the current address pointed to in the addressList.
// If the list is in an invalid state, it returns an empty address instead.
func (al *addressList) currentAddress() resolver.Address {
if !al.isValid() {
return resolver.Address{}
}
return al.addresses[al.idx]
}
func (al *addressList) reset() {
al.idx = 0
}
func (al *addressList) updateAddrs(addrs []resolver.Address) {
al.addresses = addrs
al.reset()
}
// seekTo returns false if the needle was not found and the current index was
// left unchanged.
func (al *addressList) seekTo(needle resolver.Address) bool {
for ai, addr := range al.addresses {
if !equalAddressIgnoringBalAttributes(&addr, &needle) {
continue
}
al.idx = ai
return true
}
return false
}
// hasNext returns whether incrementing the addressList will result in moving
// past the end of the list. If the list has already moved past the end, it
// returns false.
func (al *addressList) hasNext() bool {
if !al.isValid() {
return false
}
return al.idx+1 < len(al.addresses)
}
// equalAddressIgnoringBalAttributes returns true is a and b are considered
// equal. This is different from the Equal method on the resolver.Address type
// which considers all fields to determine equality. Here, we only consider
// fields that are meaningful to the SubConn.
func equalAddressIgnoringBalAttributes(a, b *resolver.Address) bool {
return a.Addr == b.Addr && a.ServerName == b.ServerName &&
a.Attributes.Equal(b.Attributes) &&
a.Metadata == b.Metadata
}

81
e2e/vendor/google.golang.org/grpc/balancer/roundrobin/roundrobin.go generated vendored Normal file
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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package roundrobin defines a roundrobin balancer. Roundrobin balancer is
// installed as one of the default balancers in gRPC, users don't need to
// explicitly install this balancer.
package roundrobin
import (
rand "math/rand/v2"
"sync/atomic"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/balancer/base"
"google.golang.org/grpc/grpclog"
)
// Name is the name of round_robin balancer.
const Name = "round_robin"
var logger = grpclog.Component("roundrobin")
// newBuilder creates a new roundrobin balancer builder.
func newBuilder() balancer.Builder {
return base.NewBalancerBuilder(Name, &rrPickerBuilder{}, base.Config{HealthCheck: true})
}
func init() {
balancer.Register(newBuilder())
}
type rrPickerBuilder struct{}
func (*rrPickerBuilder) Build(info base.PickerBuildInfo) balancer.Picker {
logger.Infof("roundrobinPicker: Build called with info: %v", info)
if len(info.ReadySCs) == 0 {
return base.NewErrPicker(balancer.ErrNoSubConnAvailable)
}
scs := make([]balancer.SubConn, 0, len(info.ReadySCs))
for sc := range info.ReadySCs {
scs = append(scs, sc)
}
return &rrPicker{
subConns: scs,
// Start at a random index, as the same RR balancer rebuilds a new
// picker when SubConn states change, and we don't want to apply excess
// load to the first server in the list.
next: uint32(rand.IntN(len(scs))),
}
}
type rrPicker struct {
// subConns is the snapshot of the roundrobin balancer when this picker was
// created. The slice is immutable. Each Get() will do a round robin
// selection from it and return the selected SubConn.
subConns []balancer.SubConn
next uint32
}
func (p *rrPicker) Pick(balancer.PickInfo) (balancer.PickResult, error) {
subConnsLen := uint32(len(p.subConns))
nextIndex := atomic.AddUint32(&p.next, 1)
sc := p.subConns[nextIndex%subConnsLen]
return balancer.PickResult{SubConn: sc}, nil
}

134
e2e/vendor/google.golang.org/grpc/balancer/subconn.go generated vendored Normal file
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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package balancer
import (
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/internal"
"google.golang.org/grpc/resolver"
)
// A SubConn represents a single connection to a gRPC backend service.
//
// All SubConns start in IDLE, and will not try to connect. To trigger a
// connection attempt, Balancers must call Connect.
//
// If the connection attempt fails, the SubConn will transition to
// TRANSIENT_FAILURE for a backoff period, and then return to IDLE. If the
// connection attempt succeeds, it will transition to READY.
//
// If a READY SubConn becomes disconnected, the SubConn will transition to IDLE.
//
// If a connection re-enters IDLE, Balancers must call Connect again to trigger
// a new connection attempt.
//
// Each SubConn contains a list of addresses. gRPC will try to connect to the
// addresses in sequence, and stop trying the remainder once the first
// connection is successful. However, this behavior is deprecated. SubConns
// should only use a single address.
//
// NOTICE: This interface is intended to be implemented by gRPC, or intercepted
// by custom load balancing poilices. Users should not need their own complete
// implementation of this interface -- they should always delegate to a SubConn
// returned by ClientConn.NewSubConn() by embedding it in their implementations.
// An embedded SubConn must never be nil, or runtime panics will occur.
type SubConn interface {
// UpdateAddresses updates the addresses used in this SubConn.
// gRPC checks if currently-connected address is still in the new list.
// If it's in the list, the connection will be kept.
// If it's not in the list, the connection will gracefully close, and
// a new connection will be created.
//
// This will trigger a state transition for the SubConn.
//
// Deprecated: this method will be removed. Create new SubConns for new
// addresses instead.
UpdateAddresses([]resolver.Address)
// Connect starts the connecting for this SubConn.
Connect()
// GetOrBuildProducer returns a reference to the existing Producer for this
// ProducerBuilder in this SubConn, or, if one does not currently exist,
// creates a new one and returns it. Returns a close function which may be
// called when the Producer is no longer needed. Otherwise the producer
// will automatically be closed upon connection loss or subchannel close.
// Should only be called on a SubConn in state Ready. Otherwise the
// producer will be unable to create streams.
GetOrBuildProducer(ProducerBuilder) (p Producer, close func())
// Shutdown shuts down the SubConn gracefully. Any started RPCs will be
// allowed to complete. No future calls should be made on the SubConn.
// One final state update will be delivered to the StateListener (or
// UpdateSubConnState; deprecated) with ConnectivityState of Shutdown to
// indicate the shutdown operation. This may be delivered before
// in-progress RPCs are complete and the actual connection is closed.
Shutdown()
// RegisterHealthListener registers a health listener that receives health
// updates for a Ready SubConn. Only one health listener can be registered
// at a time. A health listener should be registered each time the SubConn's
// connectivity state changes to READY. Registering a health listener when
// the connectivity state is not READY may result in undefined behaviour.
// This method must not be called synchronously while handling an update
// from a previously registered health listener.
RegisterHealthListener(func(SubConnState))
// EnforceSubConnEmbedding is included to force implementers to embed
// another implementation of this interface, allowing gRPC to add methods
// without breaking users.
internal.EnforceSubConnEmbedding
}
// A ProducerBuilder is a simple constructor for a Producer. It is used by the
// SubConn to create producers when needed.
type ProducerBuilder interface {
// Build creates a Producer. The first parameter is always a
// grpc.ClientConnInterface (a type to allow creating RPCs/streams on the
// associated SubConn), but is declared as `any` to avoid a dependency
// cycle. Build also returns a close function that will be called when all
// references to the Producer have been given up for a SubConn, or when a
// connectivity state change occurs on the SubConn. The close function
// should always block until all asynchronous cleanup work is completed.
Build(grpcClientConnInterface any) (p Producer, close func())
}
// SubConnState describes the state of a SubConn.
type SubConnState struct {
// ConnectivityState is the connectivity state of the SubConn.
ConnectivityState connectivity.State
// ConnectionError is set if the ConnectivityState is TransientFailure,
// describing the reason the SubConn failed. Otherwise, it is nil.
ConnectionError error
// connectedAddr contains the connected address when ConnectivityState is
// Ready. Otherwise, it is indeterminate.
connectedAddress resolver.Address
}
// connectedAddress returns the connected address for a SubConnState. The
// address is only valid if the state is READY.
func connectedAddress(scs SubConnState) resolver.Address {
return scs.connectedAddress
}
// setConnectedAddress sets the connected address for a SubConnState.
func setConnectedAddress(scs *SubConnState, addr resolver.Address) {
scs.connectedAddress = addr
}
// A Producer is a type shared among potentially many consumers. It is
// associated with a SubConn, and an implementation will typically contain
// other methods to provide additional functionality, e.g. configuration or
// subscription registration.
type Producer any

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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpc
import (
"context"
"fmt"
"sync"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/internal"
"google.golang.org/grpc/internal/balancer/gracefulswitch"
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/internal/grpcsync"
"google.golang.org/grpc/resolver"
"google.golang.org/grpc/status"
)
var (
setConnectedAddress = internal.SetConnectedAddress.(func(*balancer.SubConnState, resolver.Address))
// noOpRegisterHealthListenerFn is used when client side health checking is
// disabled. It sends a single READY update on the registered listener.
noOpRegisterHealthListenerFn = func(_ context.Context, listener func(balancer.SubConnState)) func() {
listener(balancer.SubConnState{ConnectivityState: connectivity.Ready})
return func() {}
}
)
// ccBalancerWrapper sits between the ClientConn and the Balancer.
//
// ccBalancerWrapper implements methods corresponding to the ones on the
// balancer.Balancer interface. The ClientConn is free to call these methods
// concurrently and the ccBalancerWrapper ensures that calls from the ClientConn
// to the Balancer happen in order by performing them in the serializer, without
// any mutexes held.
//
// ccBalancerWrapper also implements the balancer.ClientConn interface and is
// passed to the Balancer implementations. It invokes unexported methods on the
// ClientConn to handle these calls from the Balancer.
//
// It uses the gracefulswitch.Balancer internally to ensure that balancer
// switches happen in a graceful manner.
type ccBalancerWrapper struct {
// The following fields are initialized when the wrapper is created and are
// read-only afterwards, and therefore can be accessed without a mutex.
cc *ClientConn
opts balancer.BuildOptions
serializer *grpcsync.CallbackSerializer
serializerCancel context.CancelFunc
// The following fields are only accessed within the serializer or during
// initialization.
curBalancerName string
balancer *gracefulswitch.Balancer
// The following field is protected by mu. Caller must take cc.mu before
// taking mu.
mu sync.Mutex
closed bool
}
// newCCBalancerWrapper creates a new balancer wrapper in idle state. The
// underlying balancer is not created until the updateClientConnState() method
// is invoked.
func newCCBalancerWrapper(cc *ClientConn) *ccBalancerWrapper {
ctx, cancel := context.WithCancel(cc.ctx)
ccb := &ccBalancerWrapper{
cc: cc,
opts: balancer.BuildOptions{
DialCreds: cc.dopts.copts.TransportCredentials,
CredsBundle: cc.dopts.copts.CredsBundle,
Dialer: cc.dopts.copts.Dialer,
Authority: cc.authority,
CustomUserAgent: cc.dopts.copts.UserAgent,
ChannelzParent: cc.channelz,
Target: cc.parsedTarget,
MetricsRecorder: cc.metricsRecorderList,
},
serializer: grpcsync.NewCallbackSerializer(ctx),
serializerCancel: cancel,
}
ccb.balancer = gracefulswitch.NewBalancer(ccb, ccb.opts)
return ccb
}
// updateClientConnState is invoked by grpc to push a ClientConnState update to
// the underlying balancer. This is always executed from the serializer, so
// it is safe to call into the balancer here.
func (ccb *ccBalancerWrapper) updateClientConnState(ccs *balancer.ClientConnState) error {
errCh := make(chan error)
uccs := func(ctx context.Context) {
defer close(errCh)
if ctx.Err() != nil || ccb.balancer == nil {
return
}
name := gracefulswitch.ChildName(ccs.BalancerConfig)
if ccb.curBalancerName != name {
ccb.curBalancerName = name
channelz.Infof(logger, ccb.cc.channelz, "Channel switches to new LB policy %q", name)
}
err := ccb.balancer.UpdateClientConnState(*ccs)
if logger.V(2) && err != nil {
logger.Infof("error from balancer.UpdateClientConnState: %v", err)
}
errCh <- err
}
onFailure := func() { close(errCh) }
// UpdateClientConnState can race with Close, and when the latter wins, the
// serializer is closed, and the attempt to schedule the callback will fail.
// It is acceptable to ignore this failure. But since we want to handle the
// state update in a blocking fashion (when we successfully schedule the
// callback), we have to use the ScheduleOr method and not the MaybeSchedule
// method on the serializer.
ccb.serializer.ScheduleOr(uccs, onFailure)
return <-errCh
}
// resolverError is invoked by grpc to push a resolver error to the underlying
// balancer. The call to the balancer is executed from the serializer.
func (ccb *ccBalancerWrapper) resolverError(err error) {
ccb.serializer.TrySchedule(func(ctx context.Context) {
if ctx.Err() != nil || ccb.balancer == nil {
return
}
ccb.balancer.ResolverError(err)
})
}
// close initiates async shutdown of the wrapper. cc.mu must be held when
// calling this function. To determine the wrapper has finished shutting down,
// the channel should block on ccb.serializer.Done() without cc.mu held.
func (ccb *ccBalancerWrapper) close() {
ccb.mu.Lock()
ccb.closed = true
ccb.mu.Unlock()
channelz.Info(logger, ccb.cc.channelz, "ccBalancerWrapper: closing")
ccb.serializer.TrySchedule(func(context.Context) {
if ccb.balancer == nil {
return
}
ccb.balancer.Close()
ccb.balancer = nil
})
ccb.serializerCancel()
}
// exitIdle invokes the balancer's exitIdle method in the serializer.
func (ccb *ccBalancerWrapper) exitIdle() {
ccb.serializer.TrySchedule(func(ctx context.Context) {
if ctx.Err() != nil || ccb.balancer == nil {
return
}
ccb.balancer.ExitIdle()
})
}
func (ccb *ccBalancerWrapper) NewSubConn(addrs []resolver.Address, opts balancer.NewSubConnOptions) (balancer.SubConn, error) {
ccb.cc.mu.Lock()
defer ccb.cc.mu.Unlock()
ccb.mu.Lock()
if ccb.closed {
ccb.mu.Unlock()
return nil, fmt.Errorf("balancer is being closed; no new SubConns allowed")
}
ccb.mu.Unlock()
if len(addrs) == 0 {
return nil, fmt.Errorf("grpc: cannot create SubConn with empty address list")
}
ac, err := ccb.cc.newAddrConnLocked(addrs, opts)
if err != nil {
channelz.Warningf(logger, ccb.cc.channelz, "acBalancerWrapper: NewSubConn: failed to newAddrConn: %v", err)
return nil, err
}
acbw := &acBalancerWrapper{
ccb: ccb,
ac: ac,
producers: make(map[balancer.ProducerBuilder]*refCountedProducer),
stateListener: opts.StateListener,
healthData: newHealthData(connectivity.Idle),
}
ac.acbw = acbw
return acbw, nil
}
func (ccb *ccBalancerWrapper) RemoveSubConn(balancer.SubConn) {
// The graceful switch balancer will never call this.
logger.Errorf("ccb RemoveSubConn(%v) called unexpectedly, sc")
}
func (ccb *ccBalancerWrapper) UpdateAddresses(sc balancer.SubConn, addrs []resolver.Address) {
acbw, ok := sc.(*acBalancerWrapper)
if !ok {
return
}
acbw.UpdateAddresses(addrs)
}
func (ccb *ccBalancerWrapper) UpdateState(s balancer.State) {
ccb.cc.mu.Lock()
defer ccb.cc.mu.Unlock()
if ccb.cc.conns == nil {
// The CC has been closed; ignore this update.
return
}
ccb.mu.Lock()
if ccb.closed {
ccb.mu.Unlock()
return
}
ccb.mu.Unlock()
// Update picker before updating state. Even though the ordering here does
// not matter, it can lead to multiple calls of Pick in the common start-up
// case where we wait for ready and then perform an RPC. If the picker is
// updated later, we could call the "connecting" picker when the state is
// updated, and then call the "ready" picker after the picker gets updated.
// Note that there is no need to check if the balancer wrapper was closed,
// as we know the graceful switch LB policy will not call cc if it has been
// closed.
ccb.cc.pickerWrapper.updatePicker(s.Picker)
ccb.cc.csMgr.updateState(s.ConnectivityState)
}
func (ccb *ccBalancerWrapper) ResolveNow(o resolver.ResolveNowOptions) {
ccb.cc.mu.RLock()
defer ccb.cc.mu.RUnlock()
ccb.mu.Lock()
if ccb.closed {
ccb.mu.Unlock()
return
}
ccb.mu.Unlock()
ccb.cc.resolveNowLocked(o)
}
func (ccb *ccBalancerWrapper) Target() string {
return ccb.cc.target
}
// acBalancerWrapper is a wrapper on top of ac for balancers.
// It implements balancer.SubConn interface.
type acBalancerWrapper struct {
internal.EnforceSubConnEmbedding
ac *addrConn // read-only
ccb *ccBalancerWrapper // read-only
stateListener func(balancer.SubConnState)
producersMu sync.Mutex
producers map[balancer.ProducerBuilder]*refCountedProducer
// Access to healthData is protected by healthMu.
healthMu sync.Mutex
// healthData is stored as a pointer to detect when the health listener is
// dropped or updated. This is required as closures can't be compared for
// equality.
healthData *healthData
}
// healthData holds data related to health state reporting.
type healthData struct {
// connectivityState stores the most recent connectivity state delivered
// to the LB policy. This is stored to avoid sending updates when the
// SubConn has already exited connectivity state READY.
connectivityState connectivity.State
// closeHealthProducer stores function to close the ref counted health
// producer. The health producer is automatically closed when the SubConn
// state changes.
closeHealthProducer func()
}
func newHealthData(s connectivity.State) *healthData {
return &healthData{
connectivityState: s,
closeHealthProducer: func() {},
}
}
// updateState is invoked by grpc to push a subConn state update to the
// underlying balancer.
func (acbw *acBalancerWrapper) updateState(s connectivity.State, curAddr resolver.Address, err error) {
acbw.ccb.serializer.TrySchedule(func(ctx context.Context) {
if ctx.Err() != nil || acbw.ccb.balancer == nil {
return
}
// Invalidate all producers on any state change.
acbw.closeProducers()
// Even though it is optional for balancers, gracefulswitch ensures
// opts.StateListener is set, so this cannot ever be nil.
// TODO: delete this comment when UpdateSubConnState is removed.
scs := balancer.SubConnState{ConnectivityState: s, ConnectionError: err}
if s == connectivity.Ready {
setConnectedAddress(&scs, curAddr)
}
// Invalidate the health listener by updating the healthData.
acbw.healthMu.Lock()
// A race may occur if a health listener is registered soon after the
// connectivity state is set but before the stateListener is called.
// Two cases may arise:
// 1. The new state is not READY: RegisterHealthListener has checks to
// ensure no updates are sent when the connectivity state is not
// READY.
// 2. The new state is READY: This means that the old state wasn't Ready.
// The RegisterHealthListener API mentions that a health listener
// must not be registered when a SubConn is not ready to avoid such
// races. When this happens, the LB policy would get health updates
// on the old listener. When the LB policy registers a new listener
// on receiving the connectivity update, the health updates will be
// sent to the new health listener.
acbw.healthData = newHealthData(scs.ConnectivityState)
acbw.healthMu.Unlock()
acbw.stateListener(scs)
})
}
func (acbw *acBalancerWrapper) String() string {
return fmt.Sprintf("SubConn(id:%d)", acbw.ac.channelz.ID)
}
func (acbw *acBalancerWrapper) UpdateAddresses(addrs []resolver.Address) {
acbw.ac.updateAddrs(addrs)
}
func (acbw *acBalancerWrapper) Connect() {
go acbw.ac.connect()
}
func (acbw *acBalancerWrapper) Shutdown() {
acbw.closeProducers()
acbw.ccb.cc.removeAddrConn(acbw.ac, errConnDrain)
}
// NewStream begins a streaming RPC on the addrConn. If the addrConn is not
// ready, blocks until it is or ctx expires. Returns an error when the context
// expires or the addrConn is shut down.
func (acbw *acBalancerWrapper) NewStream(ctx context.Context, desc *StreamDesc, method string, opts ...CallOption) (ClientStream, error) {
transport := acbw.ac.getReadyTransport()
if transport == nil {
return nil, status.Errorf(codes.Unavailable, "SubConn state is not Ready")
}
return newNonRetryClientStream(ctx, desc, method, transport, acbw.ac, opts...)
}
// Invoke performs a unary RPC. If the addrConn is not ready, returns
// errSubConnNotReady.
func (acbw *acBalancerWrapper) Invoke(ctx context.Context, method string, args any, reply any, opts ...CallOption) error {
cs, err := acbw.NewStream(ctx, unaryStreamDesc, method, opts...)
if err != nil {
return err
}
if err := cs.SendMsg(args); err != nil {
return err
}
return cs.RecvMsg(reply)
}
type refCountedProducer struct {
producer balancer.Producer
refs int // number of current refs to the producer
close func() // underlying producer's close function
}
func (acbw *acBalancerWrapper) GetOrBuildProducer(pb balancer.ProducerBuilder) (balancer.Producer, func()) {
acbw.producersMu.Lock()
defer acbw.producersMu.Unlock()
// Look up existing producer from this builder.
pData := acbw.producers[pb]
if pData == nil {
// Not found; create a new one and add it to the producers map.
p, closeFn := pb.Build(acbw)
pData = &refCountedProducer{producer: p, close: closeFn}
acbw.producers[pb] = pData
}
// Account for this new reference.
pData.refs++
// Return a cleanup function wrapped in a OnceFunc to remove this reference
// and delete the refCountedProducer from the map if the total reference
// count goes to zero.
unref := func() {
acbw.producersMu.Lock()
// If closeProducers has already closed this producer instance, refs is
// set to 0, so the check after decrementing will never pass, and the
// producer will not be double-closed.
pData.refs--
if pData.refs == 0 {
defer pData.close() // Run outside the acbw mutex
delete(acbw.producers, pb)
}
acbw.producersMu.Unlock()
}
return pData.producer, grpcsync.OnceFunc(unref)
}
func (acbw *acBalancerWrapper) closeProducers() {
acbw.producersMu.Lock()
defer acbw.producersMu.Unlock()
for pb, pData := range acbw.producers {
pData.refs = 0
pData.close()
delete(acbw.producers, pb)
}
}
// healthProducerRegisterFn is a type alias for the health producer's function
// for registering listeners.
type healthProducerRegisterFn = func(context.Context, balancer.SubConn, string, func(balancer.SubConnState)) func()
// healthListenerRegFn returns a function to register a listener for health
// updates. If client side health checks are disabled, the registered listener
// will get a single READY (raw connectivity state) update.
//
// Client side health checking is enabled when all the following
// conditions are satisfied:
// 1. Health checking is not disabled using the dial option.
// 2. The health package is imported.
// 3. The health check config is present in the service config.
func (acbw *acBalancerWrapper) healthListenerRegFn() func(context.Context, func(balancer.SubConnState)) func() {
if acbw.ccb.cc.dopts.disableHealthCheck {
return noOpRegisterHealthListenerFn
}
regHealthLisFn := internal.RegisterClientHealthCheckListener
if regHealthLisFn == nil {
// The health package is not imported.
return noOpRegisterHealthListenerFn
}
cfg := acbw.ac.cc.healthCheckConfig()
if cfg == nil {
return noOpRegisterHealthListenerFn
}
return func(ctx context.Context, listener func(balancer.SubConnState)) func() {
return regHealthLisFn.(healthProducerRegisterFn)(ctx, acbw, cfg.ServiceName, listener)
}
}
// RegisterHealthListener accepts a health listener from the LB policy. It sends
// updates to the health listener as long as the SubConn's connectivity state
// doesn't change and a new health listener is not registered. To invalidate
// the currently registered health listener, acbw updates the healthData. If a
// nil listener is registered, the active health listener is dropped.
func (acbw *acBalancerWrapper) RegisterHealthListener(listener func(balancer.SubConnState)) {
acbw.healthMu.Lock()
defer acbw.healthMu.Unlock()
acbw.healthData.closeHealthProducer()
// listeners should not be registered when the connectivity state
// isn't Ready. This may happen when the balancer registers a listener
// after the connectivityState is updated, but before it is notified
// of the update.
if acbw.healthData.connectivityState != connectivity.Ready {
return
}
// Replace the health data to stop sending updates to any previously
// registered health listeners.
hd := newHealthData(connectivity.Ready)
acbw.healthData = hd
if listener == nil {
return
}
registerFn := acbw.healthListenerRegFn()
acbw.ccb.serializer.TrySchedule(func(ctx context.Context) {
if ctx.Err() != nil || acbw.ccb.balancer == nil {
return
}
// Don't send updates if a new listener is registered.
acbw.healthMu.Lock()
defer acbw.healthMu.Unlock()
if acbw.healthData != hd {
return
}
// Serialize the health updates from the health producer with
// other calls into the LB policy.
listenerWrapper := func(scs balancer.SubConnState) {
acbw.ccb.serializer.TrySchedule(func(ctx context.Context) {
if ctx.Err() != nil || acbw.ccb.balancer == nil {
return
}
acbw.healthMu.Lock()
defer acbw.healthMu.Unlock()
if acbw.healthData != hd {
return
}
listener(scs)
})
}
hd.closeHealthProducer = registerFn(ctx, listenerWrapper)
})
}

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/*
*
* Copyright 2014 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpc
import (
"context"
)
// Invoke sends the RPC request on the wire and returns after response is
// received. This is typically called by generated code.
//
// All errors returned by Invoke are compatible with the status package.
func (cc *ClientConn) Invoke(ctx context.Context, method string, args, reply any, opts ...CallOption) error {
// allow interceptor to see all applicable call options, which means those
// configured as defaults from dial option as well as per-call options
opts = combine(cc.dopts.callOptions, opts)
if cc.dopts.unaryInt != nil {
return cc.dopts.unaryInt(ctx, method, args, reply, cc, invoke, opts...)
}
return invoke(ctx, method, args, reply, cc, opts...)
}
func combine(o1 []CallOption, o2 []CallOption) []CallOption {
// we don't use append because o1 could have extra capacity whose
// elements would be overwritten, which could cause inadvertent
// sharing (and race conditions) between concurrent calls
if len(o1) == 0 {
return o2
} else if len(o2) == 0 {
return o1
}
ret := make([]CallOption, len(o1)+len(o2))
copy(ret, o1)
copy(ret[len(o1):], o2)
return ret
}
// Invoke sends the RPC request on the wire and returns after response is
// received. This is typically called by generated code.
//
// DEPRECATED: Use ClientConn.Invoke instead.
func Invoke(ctx context.Context, method string, args, reply any, cc *ClientConn, opts ...CallOption) error {
return cc.Invoke(ctx, method, args, reply, opts...)
}
var unaryStreamDesc = &StreamDesc{ServerStreams: false, ClientStreams: false}
func invoke(ctx context.Context, method string, req, reply any, cc *ClientConn, opts ...CallOption) error {
cs, err := newClientStream(ctx, unaryStreamDesc, cc, method, opts...)
if err != nil {
return err
}
if err := cs.SendMsg(req); err != nil {
return err
}
return cs.RecvMsg(reply)
}

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/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package channelz exports internals of the channelz implementation as required
// by other gRPC packages.
//
// The implementation of the channelz spec as defined in
// https://github.com/grpc/proposal/blob/master/A14-channelz.md, is provided by
// the `internal/channelz` package.
//
// # Experimental
//
// Notice: All APIs in this package are experimental and may be removed in a
// later release.
package channelz
import "google.golang.org/grpc/internal/channelz"
// Identifier is an opaque identifier which uniquely identifies an entity in the
// channelz database.
type Identifier = channelz.Identifier

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/*
*
* Copyright 2014 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpc
import (
"google.golang.org/grpc/encoding"
_ "google.golang.org/grpc/encoding/proto" // to register the Codec for "proto"
"google.golang.org/grpc/mem"
)
// baseCodec captures the new encoding.CodecV2 interface without the Name
// function, allowing it to be implemented by older Codec and encoding.Codec
// implementations. The omitted Name function is only needed for the register in
// the encoding package and is not part of the core functionality.
type baseCodec interface {
Marshal(v any) (mem.BufferSlice, error)
Unmarshal(data mem.BufferSlice, v any) error
}
// getCodec returns an encoding.CodecV2 for the codec of the given name (if
// registered). Initially checks the V2 registry with encoding.GetCodecV2 and
// returns the V2 codec if it is registered. Otherwise, it checks the V1 registry
// with encoding.GetCodec and if it is registered wraps it with newCodecV1Bridge
// to turn it into an encoding.CodecV2. Returns nil otherwise.
func getCodec(name string) encoding.CodecV2 {
if codecV1 := encoding.GetCodec(name); codecV1 != nil {
return newCodecV1Bridge(codecV1)
}
return encoding.GetCodecV2(name)
}
func newCodecV0Bridge(c Codec) baseCodec {
return codecV0Bridge{codec: c}
}
func newCodecV1Bridge(c encoding.Codec) encoding.CodecV2 {
return codecV1Bridge{
codecV0Bridge: codecV0Bridge{codec: c},
name: c.Name(),
}
}
var _ baseCodec = codecV0Bridge{}
type codecV0Bridge struct {
codec interface {
Marshal(v any) ([]byte, error)
Unmarshal(data []byte, v any) error
}
}
func (c codecV0Bridge) Marshal(v any) (mem.BufferSlice, error) {
data, err := c.codec.Marshal(v)
if err != nil {
return nil, err
}
return mem.BufferSlice{mem.SliceBuffer(data)}, nil
}
func (c codecV0Bridge) Unmarshal(data mem.BufferSlice, v any) (err error) {
return c.codec.Unmarshal(data.Materialize(), v)
}
var _ encoding.CodecV2 = codecV1Bridge{}
type codecV1Bridge struct {
codecV0Bridge
name string
}
func (c codecV1Bridge) Name() string {
return c.name
}
// Codec defines the interface gRPC uses to encode and decode messages.
// Note that implementations of this interface must be thread safe;
// a Codec's methods can be called from concurrent goroutines.
//
// Deprecated: use encoding.Codec instead.
type Codec interface {
// Marshal returns the wire format of v.
Marshal(v any) ([]byte, error)
// Unmarshal parses the wire format into v.
Unmarshal(data []byte, v any) error
// String returns the name of the Codec implementation. This is unused by
// gRPC.
String() string
}

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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package codes
import (
"strconv"
"google.golang.org/grpc/internal"
)
func init() {
internal.CanonicalString = canonicalString
}
func (c Code) String() string {
switch c {
case OK:
return "OK"
case Canceled:
return "Canceled"
case Unknown:
return "Unknown"
case InvalidArgument:
return "InvalidArgument"
case DeadlineExceeded:
return "DeadlineExceeded"
case NotFound:
return "NotFound"
case AlreadyExists:
return "AlreadyExists"
case PermissionDenied:
return "PermissionDenied"
case ResourceExhausted:
return "ResourceExhausted"
case FailedPrecondition:
return "FailedPrecondition"
case Aborted:
return "Aborted"
case OutOfRange:
return "OutOfRange"
case Unimplemented:
return "Unimplemented"
case Internal:
return "Internal"
case Unavailable:
return "Unavailable"
case DataLoss:
return "DataLoss"
case Unauthenticated:
return "Unauthenticated"
default:
return "Code(" + strconv.FormatInt(int64(c), 10) + ")"
}
}
func canonicalString(c Code) string {
switch c {
case OK:
return "OK"
case Canceled:
return "CANCELLED"
case Unknown:
return "UNKNOWN"
case InvalidArgument:
return "INVALID_ARGUMENT"
case DeadlineExceeded:
return "DEADLINE_EXCEEDED"
case NotFound:
return "NOT_FOUND"
case AlreadyExists:
return "ALREADY_EXISTS"
case PermissionDenied:
return "PERMISSION_DENIED"
case ResourceExhausted:
return "RESOURCE_EXHAUSTED"
case FailedPrecondition:
return "FAILED_PRECONDITION"
case Aborted:
return "ABORTED"
case OutOfRange:
return "OUT_OF_RANGE"
case Unimplemented:
return "UNIMPLEMENTED"
case Internal:
return "INTERNAL"
case Unavailable:
return "UNAVAILABLE"
case DataLoss:
return "DATA_LOSS"
case Unauthenticated:
return "UNAUTHENTICATED"
default:
return "CODE(" + strconv.FormatInt(int64(c), 10) + ")"
}
}

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/*
*
* Copyright 2014 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package codes defines the canonical error codes used by gRPC. It is
// consistent across various languages.
package codes // import "google.golang.org/grpc/codes"
import (
"fmt"
"strconv"
)
// A Code is a status code defined according to the [gRPC documentation].
//
// Only the codes defined as consts in this package are valid codes. Do not use
// other code values. Behavior of other codes is implementation-specific and
// interoperability between implementations is not guaranteed.
//
// [gRPC documentation]: https://github.com/grpc/grpc/blob/master/doc/statuscodes.md
type Code uint32
const (
// OK is returned on success.
OK Code = 0
// Canceled indicates the operation was canceled (typically by the caller).
//
// The gRPC framework will generate this error code when cancellation
// is requested.
Canceled Code = 1
// Unknown error. An example of where this error may be returned is
// if a Status value received from another address space belongs to
// an error-space that is not known in this address space. Also
// errors raised by APIs that do not return enough error information
// may be converted to this error.
//
// The gRPC framework will generate this error code in the above two
// mentioned cases.
Unknown Code = 2
// InvalidArgument indicates client specified an invalid argument.
// Note that this differs from FailedPrecondition. It indicates arguments
// that are problematic regardless of the state of the system
// (e.g., a malformed file name).
//
// This error code will not be generated by the gRPC framework.
InvalidArgument Code = 3
// DeadlineExceeded means operation expired before completion.
// For operations that change the state of the system, this error may be
// returned even if the operation has completed successfully. For
// example, a successful response from a server could have been delayed
// long enough for the deadline to expire.
//
// The gRPC framework will generate this error code when the deadline is
// exceeded.
DeadlineExceeded Code = 4
// NotFound means some requested entity (e.g., file or directory) was
// not found.
//
// This error code will not be generated by the gRPC framework.
NotFound Code = 5
// AlreadyExists means an attempt to create an entity failed because one
// already exists.
//
// This error code will not be generated by the gRPC framework.
AlreadyExists Code = 6
// PermissionDenied indicates the caller does not have permission to
// execute the specified operation. It must not be used for rejections
// caused by exhausting some resource (use ResourceExhausted
// instead for those errors). It must not be
// used if the caller cannot be identified (use Unauthenticated
// instead for those errors).
//
// This error code will not be generated by the gRPC core framework,
// but expect authentication middleware to use it.
PermissionDenied Code = 7
// ResourceExhausted indicates some resource has been exhausted, perhaps
// a per-user quota, or perhaps the entire file system is out of space.
//
// This error code will be generated by the gRPC framework in
// out-of-memory and server overload situations, or when a message is
// larger than the configured maximum size.
ResourceExhausted Code = 8
// FailedPrecondition indicates operation was rejected because the
// system is not in a state required for the operation's execution.
// For example, directory to be deleted may be non-empty, an rmdir
// operation is applied to a non-directory, etc.
//
// A litmus test that may help a service implementor in deciding
// between FailedPrecondition, Aborted, and Unavailable:
// (a) Use Unavailable if the client can retry just the failing call.
// (b) Use Aborted if the client should retry at a higher-level
// (e.g., restarting a read-modify-write sequence).
// (c) Use FailedPrecondition if the client should not retry until
// the system state has been explicitly fixed. E.g., if an "rmdir"
// fails because the directory is non-empty, FailedPrecondition
// should be returned since the client should not retry unless
// they have first fixed up the directory by deleting files from it.
// (d) Use FailedPrecondition if the client performs conditional
// REST Get/Update/Delete on a resource and the resource on the
// server does not match the condition. E.g., conflicting
// read-modify-write on the same resource.
//
// This error code will not be generated by the gRPC framework.
FailedPrecondition Code = 9
// Aborted indicates the operation was aborted, typically due to a
// concurrency issue like sequencer check failures, transaction aborts,
// etc.
//
// See litmus test above for deciding between FailedPrecondition,
// Aborted, and Unavailable.
//
// This error code will not be generated by the gRPC framework.
Aborted Code = 10
// OutOfRange means operation was attempted past the valid range.
// E.g., seeking or reading past end of file.
//
// Unlike InvalidArgument, this error indicates a problem that may
// be fixed if the system state changes. For example, a 32-bit file
// system will generate InvalidArgument if asked to read at an
// offset that is not in the range [0,2^32-1], but it will generate
// OutOfRange if asked to read from an offset past the current
// file size.
//
// There is a fair bit of overlap between FailedPrecondition and
// OutOfRange. We recommend using OutOfRange (the more specific
// error) when it applies so that callers who are iterating through
// a space can easily look for an OutOfRange error to detect when
// they are done.
//
// This error code will not be generated by the gRPC framework.
OutOfRange Code = 11
// Unimplemented indicates operation is not implemented or not
// supported/enabled in this service.
//
// This error code will be generated by the gRPC framework. Most
// commonly, you will see this error code when a method implementation
// is missing on the server. It can also be generated for unknown
// compression algorithms or a disagreement as to whether an RPC should
// be streaming.
Unimplemented Code = 12
// Internal errors. Means some invariants expected by underlying
// system has been broken. If you see one of these errors,
// something is very broken.
//
// This error code will be generated by the gRPC framework in several
// internal error conditions.
Internal Code = 13
// Unavailable indicates the service is currently unavailable.
// This is a most likely a transient condition and may be corrected
// by retrying with a backoff. Note that it is not always safe to retry
// non-idempotent operations.
//
// See litmus test above for deciding between FailedPrecondition,
// Aborted, and Unavailable.
//
// This error code will be generated by the gRPC framework during
// abrupt shutdown of a server process or network connection.
Unavailable Code = 14
// DataLoss indicates unrecoverable data loss or corruption.
//
// This error code will not be generated by the gRPC framework.
DataLoss Code = 15
// Unauthenticated indicates the request does not have valid
// authentication credentials for the operation.
//
// The gRPC framework will generate this error code when the
// authentication metadata is invalid or a Credentials callback fails,
// but also expect authentication middleware to generate it.
Unauthenticated Code = 16
_maxCode = 17
)
var strToCode = map[string]Code{
`"OK"`: OK,
`"CANCELLED"`:/* [sic] */ Canceled,
`"UNKNOWN"`: Unknown,
`"INVALID_ARGUMENT"`: InvalidArgument,
`"DEADLINE_EXCEEDED"`: DeadlineExceeded,
`"NOT_FOUND"`: NotFound,
`"ALREADY_EXISTS"`: AlreadyExists,
`"PERMISSION_DENIED"`: PermissionDenied,
`"RESOURCE_EXHAUSTED"`: ResourceExhausted,
`"FAILED_PRECONDITION"`: FailedPrecondition,
`"ABORTED"`: Aborted,
`"OUT_OF_RANGE"`: OutOfRange,
`"UNIMPLEMENTED"`: Unimplemented,
`"INTERNAL"`: Internal,
`"UNAVAILABLE"`: Unavailable,
`"DATA_LOSS"`: DataLoss,
`"UNAUTHENTICATED"`: Unauthenticated,
}
// UnmarshalJSON unmarshals b into the Code.
func (c *Code) UnmarshalJSON(b []byte) error {
// From json.Unmarshaler: By convention, to approximate the behavior of
// Unmarshal itself, Unmarshalers implement UnmarshalJSON([]byte("null")) as
// a no-op.
if string(b) == "null" {
return nil
}
if c == nil {
return fmt.Errorf("nil receiver passed to UnmarshalJSON")
}
if ci, err := strconv.ParseUint(string(b), 10, 32); err == nil {
if ci >= _maxCode {
return fmt.Errorf("invalid code: %d", ci)
}
*c = Code(ci)
return nil
}
if jc, ok := strToCode[string(b)]; ok {
*c = jc
return nil
}
return fmt.Errorf("invalid code: %q", string(b))
}

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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package connectivity defines connectivity semantics.
// For details, see https://github.com/grpc/grpc/blob/master/doc/connectivity-semantics-and-api.md.
package connectivity
import (
"google.golang.org/grpc/grpclog"
)
var logger = grpclog.Component("core")
// State indicates the state of connectivity.
// It can be the state of a ClientConn or SubConn.
type State int
func (s State) String() string {
switch s {
case Idle:
return "IDLE"
case Connecting:
return "CONNECTING"
case Ready:
return "READY"
case TransientFailure:
return "TRANSIENT_FAILURE"
case Shutdown:
return "SHUTDOWN"
default:
logger.Errorf("unknown connectivity state: %d", s)
return "INVALID_STATE"
}
}
const (
// Idle indicates the ClientConn is idle.
Idle State = iota
// Connecting indicates the ClientConn is connecting.
Connecting
// Ready indicates the ClientConn is ready for work.
Ready
// TransientFailure indicates the ClientConn has seen a failure but expects to recover.
TransientFailure
// Shutdown indicates the ClientConn has started shutting down.
Shutdown
)
// ServingMode indicates the current mode of operation of the server.
//
// Only xDS enabled gRPC servers currently report their serving mode.
type ServingMode int
const (
// ServingModeStarting indicates that the server is starting up.
ServingModeStarting ServingMode = iota
// ServingModeServing indicates that the server contains all required
// configuration and is serving RPCs.
ServingModeServing
// ServingModeNotServing indicates that the server is not accepting new
// connections. Existing connections will be closed gracefully, allowing
// in-progress RPCs to complete. A server enters this mode when it does not
// contain the required configuration to serve RPCs.
ServingModeNotServing
)
func (s ServingMode) String() string {
switch s {
case ServingModeStarting:
return "STARTING"
case ServingModeServing:
return "SERVING"
case ServingModeNotServing:
return "NOT_SERVING"
default:
logger.Errorf("unknown serving mode: %d", s)
return "INVALID_MODE"
}
}

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/*
*
* Copyright 2014 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package credentials implements various credentials supported by gRPC library,
// which encapsulate all the state needed by a client to authenticate with a
// server and make various assertions, e.g., about the client's identity, role,
// or whether it is authorized to make a particular call.
package credentials // import "google.golang.org/grpc/credentials"
import (
"context"
"errors"
"fmt"
"net"
"google.golang.org/grpc/attributes"
icredentials "google.golang.org/grpc/internal/credentials"
"google.golang.org/protobuf/proto"
)
// PerRPCCredentials defines the common interface for the credentials which need to
// attach security information to every RPC (e.g., oauth2).
type PerRPCCredentials interface {
// GetRequestMetadata gets the current request metadata, refreshing tokens
// if required. This should be called by the transport layer on each
// request, and the data should be populated in headers or other
// context. If a status code is returned, it will be used as the status for
// the RPC (restricted to an allowable set of codes as defined by gRFC
// A54). uri is the URI of the entry point for the request. When supported
// by the underlying implementation, ctx can be used for timeout and
// cancellation. Additionally, RequestInfo data will be available via ctx
// to this call. TODO(zhaoq): Define the set of the qualified keys instead
// of leaving it as an arbitrary string.
GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error)
// RequireTransportSecurity indicates whether the credentials requires
// transport security.
RequireTransportSecurity() bool
}
// SecurityLevel defines the protection level on an established connection.
//
// This API is experimental.
type SecurityLevel int
const (
// InvalidSecurityLevel indicates an invalid security level.
// The zero SecurityLevel value is invalid for backward compatibility.
InvalidSecurityLevel SecurityLevel = iota
// NoSecurity indicates a connection is insecure.
NoSecurity
// IntegrityOnly indicates a connection only provides integrity protection.
IntegrityOnly
// PrivacyAndIntegrity indicates a connection provides both privacy and integrity protection.
PrivacyAndIntegrity
)
// String returns SecurityLevel in a string format.
func (s SecurityLevel) String() string {
switch s {
case NoSecurity:
return "NoSecurity"
case IntegrityOnly:
return "IntegrityOnly"
case PrivacyAndIntegrity:
return "PrivacyAndIntegrity"
}
return fmt.Sprintf("invalid SecurityLevel: %v", int(s))
}
// CommonAuthInfo contains authenticated information common to AuthInfo implementations.
// It should be embedded in a struct implementing AuthInfo to provide additional information
// about the credentials.
//
// This API is experimental.
type CommonAuthInfo struct {
SecurityLevel SecurityLevel
}
// GetCommonAuthInfo returns the pointer to CommonAuthInfo struct.
func (c CommonAuthInfo) GetCommonAuthInfo() CommonAuthInfo {
return c
}
// ProtocolInfo provides information regarding the gRPC wire protocol version,
// security protocol, security protocol version in use, server name, etc.
type ProtocolInfo struct {
// ProtocolVersion is the gRPC wire protocol version.
ProtocolVersion string
// SecurityProtocol is the security protocol in use.
SecurityProtocol string
// SecurityVersion is the security protocol version. It is a static version string from the
// credentials, not a value that reflects per-connection protocol negotiation. To retrieve
// details about the credentials used for a connection, use the Peer's AuthInfo field instead.
//
// Deprecated: please use Peer.AuthInfo.
SecurityVersion string
// ServerName is the user-configured server name.
ServerName string
}
// AuthInfo defines the common interface for the auth information the users are interested in.
// A struct that implements AuthInfo should embed CommonAuthInfo by including additional
// information about the credentials in it.
type AuthInfo interface {
AuthType() string
}
// ErrConnDispatched indicates that rawConn has been dispatched out of gRPC
// and the caller should not close rawConn.
var ErrConnDispatched = errors.New("credentials: rawConn is dispatched out of gRPC")
// TransportCredentials defines the common interface for all the live gRPC wire
// protocols and supported transport security protocols (e.g., TLS, SSL).
type TransportCredentials interface {
// ClientHandshake does the authentication handshake specified by the
// corresponding authentication protocol on rawConn for clients. It returns
// the authenticated connection and the corresponding auth information
// about the connection. The auth information should embed CommonAuthInfo
// to return additional information about the credentials. Implementations
// must use the provided context to implement timely cancellation. gRPC
// will try to reconnect if the error returned is a temporary error
// (io.EOF, context.DeadlineExceeded or err.Temporary() == true). If the
// returned error is a wrapper error, implementations should make sure that
// the error implements Temporary() to have the correct retry behaviors.
// Additionally, ClientHandshakeInfo data will be available via the context
// passed to this call.
//
// The second argument to this method is the `:authority` header value used
// while creating new streams on this connection after authentication
// succeeds. Implementations must use this as the server name during the
// authentication handshake.
//
// If the returned net.Conn is closed, it MUST close the net.Conn provided.
ClientHandshake(context.Context, string, net.Conn) (net.Conn, AuthInfo, error)
// ServerHandshake does the authentication handshake for servers. It returns
// the authenticated connection and the corresponding auth information about
// the connection. The auth information should embed CommonAuthInfo to return additional information
// about the credentials.
//
// If the returned net.Conn is closed, it MUST close the net.Conn provided.
ServerHandshake(net.Conn) (net.Conn, AuthInfo, error)
// Info provides the ProtocolInfo of this TransportCredentials.
Info() ProtocolInfo
// Clone makes a copy of this TransportCredentials.
Clone() TransportCredentials
// OverrideServerName specifies the value used for the following:
// - verifying the hostname on the returned certificates
// - as SNI in the client's handshake to support virtual hosting
// - as the value for `:authority` header at stream creation time
//
// Deprecated: use grpc.WithAuthority instead. Will be supported
// throughout 1.x.
OverrideServerName(string) error
}
// Bundle is a combination of TransportCredentials and PerRPCCredentials.
//
// It also contains a mode switching method, so it can be used as a combination
// of different credential policies.
//
// Bundle cannot be used together with individual TransportCredentials.
// PerRPCCredentials from Bundle will be appended to other PerRPCCredentials.
//
// This API is experimental.
type Bundle interface {
// TransportCredentials returns the transport credentials from the Bundle.
//
// Implementations must return non-nil transport credentials. If transport
// security is not needed by the Bundle, implementations may choose to
// return insecure.NewCredentials().
TransportCredentials() TransportCredentials
// PerRPCCredentials returns the per-RPC credentials from the Bundle.
//
// May be nil if per-RPC credentials are not needed.
PerRPCCredentials() PerRPCCredentials
// NewWithMode should make a copy of Bundle, and switch mode. Modifying the
// existing Bundle may cause races.
//
// NewWithMode returns nil if the requested mode is not supported.
NewWithMode(mode string) (Bundle, error)
}
// RequestInfo contains request data attached to the context passed to GetRequestMetadata calls.
//
// This API is experimental.
type RequestInfo struct {
// The method passed to Invoke or NewStream for this RPC. (For proto methods, this has the format "/some.Service/Method")
Method string
// AuthInfo contains the information from a security handshake (TransportCredentials.ClientHandshake, TransportCredentials.ServerHandshake)
AuthInfo AuthInfo
}
// RequestInfoFromContext extracts the RequestInfo from the context if it exists.
//
// This API is experimental.
func RequestInfoFromContext(ctx context.Context) (ri RequestInfo, ok bool) {
ri, ok = icredentials.RequestInfoFromContext(ctx).(RequestInfo)
return ri, ok
}
// ClientHandshakeInfo holds data to be passed to ClientHandshake. This makes
// it possible to pass arbitrary data to the handshaker from gRPC, resolver,
// balancer etc. Individual credential implementations control the actual
// format of the data that they are willing to receive.
//
// This API is experimental.
type ClientHandshakeInfo struct {
// Attributes contains the attributes for the address. It could be provided
// by the gRPC, resolver, balancer etc.
Attributes *attributes.Attributes
}
// ClientHandshakeInfoFromContext returns the ClientHandshakeInfo struct stored
// in ctx.
//
// This API is experimental.
func ClientHandshakeInfoFromContext(ctx context.Context) ClientHandshakeInfo {
chi, _ := icredentials.ClientHandshakeInfoFromContext(ctx).(ClientHandshakeInfo)
return chi
}
// CheckSecurityLevel checks if a connection's security level is greater than or equal to the specified one.
// It returns success if 1) the condition is satisfied or 2) AuthInfo struct does not implement GetCommonAuthInfo() method
// or 3) CommonAuthInfo.SecurityLevel has an invalid zero value. For 2) and 3), it is for the purpose of backward-compatibility.
//
// This API is experimental.
func CheckSecurityLevel(ai AuthInfo, level SecurityLevel) error {
type internalInfo interface {
GetCommonAuthInfo() CommonAuthInfo
}
if ai == nil {
return errors.New("AuthInfo is nil")
}
if ci, ok := ai.(internalInfo); ok {
// CommonAuthInfo.SecurityLevel has an invalid value.
if ci.GetCommonAuthInfo().SecurityLevel == InvalidSecurityLevel {
return nil
}
if ci.GetCommonAuthInfo().SecurityLevel < level {
return fmt.Errorf("requires SecurityLevel %v; connection has %v", level, ci.GetCommonAuthInfo().SecurityLevel)
}
}
// The condition is satisfied or AuthInfo struct does not implement GetCommonAuthInfo() method.
return nil
}
// ChannelzSecurityInfo defines the interface that security protocols should implement
// in order to provide security info to channelz.
//
// This API is experimental.
type ChannelzSecurityInfo interface {
GetSecurityValue() ChannelzSecurityValue
}
// ChannelzSecurityValue defines the interface that GetSecurityValue() return value
// should satisfy. This interface should only be satisfied by *TLSChannelzSecurityValue
// and *OtherChannelzSecurityValue.
//
// This API is experimental.
type ChannelzSecurityValue interface {
isChannelzSecurityValue()
}
// OtherChannelzSecurityValue defines the struct that non-TLS protocol should return
// from GetSecurityValue(), which contains protocol specific security info. Note
// the Value field will be sent to users of channelz requesting channel info, and
// thus sensitive info should better be avoided.
//
// This API is experimental.
type OtherChannelzSecurityValue struct {
ChannelzSecurityValue
Name string
Value proto.Message
}

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/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package insecure provides an implementation of the
// credentials.TransportCredentials interface which disables transport security.
package insecure
import (
"context"
"net"
"google.golang.org/grpc/credentials"
)
// NewCredentials returns a credentials which disables transport security.
//
// Note that using this credentials with per-RPC credentials which require
// transport security is incompatible and will cause grpc.Dial() to fail.
func NewCredentials() credentials.TransportCredentials {
return insecureTC{}
}
// insecureTC implements the insecure transport credentials. The handshake
// methods simply return the passed in net.Conn and set the security level to
// NoSecurity.
type insecureTC struct{}
func (insecureTC) ClientHandshake(_ context.Context, _ string, conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
return conn, info{credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity}}, nil
}
func (insecureTC) ServerHandshake(conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
return conn, info{credentials.CommonAuthInfo{SecurityLevel: credentials.NoSecurity}}, nil
}
func (insecureTC) Info() credentials.ProtocolInfo {
return credentials.ProtocolInfo{SecurityProtocol: "insecure"}
}
func (insecureTC) Clone() credentials.TransportCredentials {
return insecureTC{}
}
func (insecureTC) OverrideServerName(string) error {
return nil
}
// info contains the auth information for an insecure connection.
// It implements the AuthInfo interface.
type info struct {
credentials.CommonAuthInfo
}
// AuthType returns the type of info as a string.
func (info) AuthType() string {
return "insecure"
}
// insecureBundle implements an insecure bundle.
// An insecure bundle provides a thin wrapper around insecureTC to support
// the credentials.Bundle interface.
type insecureBundle struct{}
// NewBundle returns a bundle with disabled transport security and no per rpc credential.
func NewBundle() credentials.Bundle {
return insecureBundle{}
}
// NewWithMode returns a new insecure Bundle. The mode is ignored.
func (insecureBundle) NewWithMode(string) (credentials.Bundle, error) {
return insecureBundle{}, nil
}
// PerRPCCredentials returns an nil implementation as insecure
// bundle does not support a per rpc credential.
func (insecureBundle) PerRPCCredentials() credentials.PerRPCCredentials {
return nil
}
// TransportCredentials returns the underlying insecure transport credential.
func (insecureBundle) TransportCredentials() credentials.TransportCredentials {
return NewCredentials()
}

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/*
*
* Copyright 2014 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package credentials
import (
"context"
"crypto/tls"
"crypto/x509"
"fmt"
"net"
"net/url"
"os"
"google.golang.org/grpc/grpclog"
credinternal "google.golang.org/grpc/internal/credentials"
"google.golang.org/grpc/internal/envconfig"
)
const alpnFailureHelpMessage = "If you upgraded from a grpc-go version earlier than 1.67, your TLS connections may have stopped working due to ALPN enforcement. For more details, see: https://github.com/grpc/grpc-go/issues/434"
var logger = grpclog.Component("credentials")
// TLSInfo contains the auth information for a TLS authenticated connection.
// It implements the AuthInfo interface.
type TLSInfo struct {
State tls.ConnectionState
CommonAuthInfo
// This API is experimental.
SPIFFEID *url.URL
}
// AuthType returns the type of TLSInfo as a string.
func (t TLSInfo) AuthType() string {
return "tls"
}
// cipherSuiteLookup returns the string version of a TLS cipher suite ID.
func cipherSuiteLookup(cipherSuiteID uint16) string {
for _, s := range tls.CipherSuites() {
if s.ID == cipherSuiteID {
return s.Name
}
}
for _, s := range tls.InsecureCipherSuites() {
if s.ID == cipherSuiteID {
return s.Name
}
}
return fmt.Sprintf("unknown ID: %v", cipherSuiteID)
}
// GetSecurityValue returns security info requested by channelz.
func (t TLSInfo) GetSecurityValue() ChannelzSecurityValue {
v := &TLSChannelzSecurityValue{
StandardName: cipherSuiteLookup(t.State.CipherSuite),
}
// Currently there's no way to get LocalCertificate info from tls package.
if len(t.State.PeerCertificates) > 0 {
v.RemoteCertificate = t.State.PeerCertificates[0].Raw
}
return v
}
// tlsCreds is the credentials required for authenticating a connection using TLS.
type tlsCreds struct {
// TLS configuration
config *tls.Config
}
func (c tlsCreds) Info() ProtocolInfo {
return ProtocolInfo{
SecurityProtocol: "tls",
SecurityVersion: "1.2",
ServerName: c.config.ServerName,
}
}
func (c *tlsCreds) ClientHandshake(ctx context.Context, authority string, rawConn net.Conn) (_ net.Conn, _ AuthInfo, err error) {
// use local cfg to avoid clobbering ServerName if using multiple endpoints
cfg := credinternal.CloneTLSConfig(c.config)
if cfg.ServerName == "" {
serverName, _, err := net.SplitHostPort(authority)
if err != nil {
// If the authority had no host port or if the authority cannot be parsed, use it as-is.
serverName = authority
}
cfg.ServerName = serverName
}
conn := tls.Client(rawConn, cfg)
errChannel := make(chan error, 1)
go func() {
errChannel <- conn.Handshake()
close(errChannel)
}()
select {
case err := <-errChannel:
if err != nil {
conn.Close()
return nil, nil, err
}
case <-ctx.Done():
conn.Close()
return nil, nil, ctx.Err()
}
// The negotiated protocol can be either of the following:
// 1. h2: When the server supports ALPN. Only HTTP/2 can be negotiated since
// it is the only protocol advertised by the client during the handshake.
// The tls library ensures that the server chooses a protocol advertised
// by the client.
// 2. "" (empty string): If the server doesn't support ALPN. ALPN is a requirement
// for using HTTP/2 over TLS. We can terminate the connection immediately.
np := conn.ConnectionState().NegotiatedProtocol
if np == "" {
if envconfig.EnforceALPNEnabled {
conn.Close()
return nil, nil, fmt.Errorf("credentials: cannot check peer: missing selected ALPN property. %s", alpnFailureHelpMessage)
}
logger.Warningf("Allowing TLS connection to server %q with ALPN disabled. TLS connections to servers with ALPN disabled will be disallowed in future grpc-go releases", cfg.ServerName)
}
tlsInfo := TLSInfo{
State: conn.ConnectionState(),
CommonAuthInfo: CommonAuthInfo{
SecurityLevel: PrivacyAndIntegrity,
},
}
id := credinternal.SPIFFEIDFromState(conn.ConnectionState())
if id != nil {
tlsInfo.SPIFFEID = id
}
return credinternal.WrapSyscallConn(rawConn, conn), tlsInfo, nil
}
func (c *tlsCreds) ServerHandshake(rawConn net.Conn) (net.Conn, AuthInfo, error) {
conn := tls.Server(rawConn, c.config)
if err := conn.Handshake(); err != nil {
conn.Close()
return nil, nil, err
}
cs := conn.ConnectionState()
// The negotiated application protocol can be empty only if the client doesn't
// support ALPN. In such cases, we can close the connection since ALPN is required
// for using HTTP/2 over TLS.
if cs.NegotiatedProtocol == "" {
if envconfig.EnforceALPNEnabled {
conn.Close()
return nil, nil, fmt.Errorf("credentials: cannot check peer: missing selected ALPN property. %s", alpnFailureHelpMessage)
} else if logger.V(2) {
logger.Info("Allowing TLS connection from client with ALPN disabled. TLS connections with ALPN disabled will be disallowed in future grpc-go releases")
}
}
tlsInfo := TLSInfo{
State: cs,
CommonAuthInfo: CommonAuthInfo{
SecurityLevel: PrivacyAndIntegrity,
},
}
id := credinternal.SPIFFEIDFromState(conn.ConnectionState())
if id != nil {
tlsInfo.SPIFFEID = id
}
return credinternal.WrapSyscallConn(rawConn, conn), tlsInfo, nil
}
func (c *tlsCreds) Clone() TransportCredentials {
return NewTLS(c.config)
}
func (c *tlsCreds) OverrideServerName(serverNameOverride string) error {
c.config.ServerName = serverNameOverride
return nil
}
// The following cipher suites are forbidden for use with HTTP/2 by
// https://datatracker.ietf.org/doc/html/rfc7540#appendix-A
var tls12ForbiddenCipherSuites = map[uint16]struct{}{
tls.TLS_RSA_WITH_AES_128_CBC_SHA: {},
tls.TLS_RSA_WITH_AES_256_CBC_SHA: {},
tls.TLS_RSA_WITH_AES_128_GCM_SHA256: {},
tls.TLS_RSA_WITH_AES_256_GCM_SHA384: {},
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA: {},
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA: {},
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA: {},
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA: {},
}
// NewTLS uses c to construct a TransportCredentials based on TLS.
func NewTLS(c *tls.Config) TransportCredentials {
config := applyDefaults(c)
if config.GetConfigForClient != nil {
oldFn := config.GetConfigForClient
config.GetConfigForClient = func(hello *tls.ClientHelloInfo) (*tls.Config, error) {
cfgForClient, err := oldFn(hello)
if err != nil || cfgForClient == nil {
return cfgForClient, err
}
return applyDefaults(cfgForClient), nil
}
}
return &tlsCreds{config: config}
}
func applyDefaults(c *tls.Config) *tls.Config {
config := credinternal.CloneTLSConfig(c)
config.NextProtos = credinternal.AppendH2ToNextProtos(config.NextProtos)
// If the user did not configure a MinVersion and did not configure a
// MaxVersion < 1.2, use MinVersion=1.2, which is required by
// https://datatracker.ietf.org/doc/html/rfc7540#section-9.2
if config.MinVersion == 0 && (config.MaxVersion == 0 || config.MaxVersion >= tls.VersionTLS12) {
config.MinVersion = tls.VersionTLS12
}
// If the user did not configure CipherSuites, use all "secure" cipher
// suites reported by the TLS package, but remove some explicitly forbidden
// by https://datatracker.ietf.org/doc/html/rfc7540#appendix-A
if config.CipherSuites == nil {
for _, cs := range tls.CipherSuites() {
if _, ok := tls12ForbiddenCipherSuites[cs.ID]; !ok {
config.CipherSuites = append(config.CipherSuites, cs.ID)
}
}
}
return config
}
// NewClientTLSFromCert constructs TLS credentials from the provided root
// certificate authority certificate(s) to validate server connections. If
// certificates to establish the identity of the client need to be included in
// the credentials (eg: for mTLS), use NewTLS instead, where a complete
// tls.Config can be specified.
// serverNameOverride is for testing only. If set to a non empty string,
// it will override the virtual host name of authority (e.g. :authority header
// field) in requests.
func NewClientTLSFromCert(cp *x509.CertPool, serverNameOverride string) TransportCredentials {
return NewTLS(&tls.Config{ServerName: serverNameOverride, RootCAs: cp})
}
// NewClientTLSFromFile constructs TLS credentials from the provided root
// certificate authority certificate file(s) to validate server connections. If
// certificates to establish the identity of the client need to be included in
// the credentials (eg: for mTLS), use NewTLS instead, where a complete
// tls.Config can be specified.
// serverNameOverride is for testing only. If set to a non empty string,
// it will override the virtual host name of authority (e.g. :authority header
// field) in requests.
func NewClientTLSFromFile(certFile, serverNameOverride string) (TransportCredentials, error) {
b, err := os.ReadFile(certFile)
if err != nil {
return nil, err
}
cp := x509.NewCertPool()
if !cp.AppendCertsFromPEM(b) {
return nil, fmt.Errorf("credentials: failed to append certificates")
}
return NewTLS(&tls.Config{ServerName: serverNameOverride, RootCAs: cp}), nil
}
// NewServerTLSFromCert constructs TLS credentials from the input certificate for server.
func NewServerTLSFromCert(cert *tls.Certificate) TransportCredentials {
return NewTLS(&tls.Config{Certificates: []tls.Certificate{*cert}})
}
// NewServerTLSFromFile constructs TLS credentials from the input certificate file and key
// file for server.
func NewServerTLSFromFile(certFile, keyFile string) (TransportCredentials, error) {
cert, err := tls.LoadX509KeyPair(certFile, keyFile)
if err != nil {
return nil, err
}
return NewTLS(&tls.Config{Certificates: []tls.Certificate{cert}}), nil
}
// TLSChannelzSecurityValue defines the struct that TLS protocol should return
// from GetSecurityValue(), containing security info like cipher and certificate used.
//
// # Experimental
//
// Notice: This type is EXPERIMENTAL and may be changed or removed in a
// later release.
type TLSChannelzSecurityValue struct {
ChannelzSecurityValue
StandardName string
LocalCertificate []byte
RemoteCertificate []byte
}

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@ -0,0 +1,756 @@
/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpc
import (
"context"
"net"
"net/url"
"time"
"google.golang.org/grpc/backoff"
"google.golang.org/grpc/channelz"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/credentials/insecure"
"google.golang.org/grpc/internal"
internalbackoff "google.golang.org/grpc/internal/backoff"
"google.golang.org/grpc/internal/binarylog"
"google.golang.org/grpc/internal/transport"
"google.golang.org/grpc/keepalive"
"google.golang.org/grpc/mem"
"google.golang.org/grpc/resolver"
"google.golang.org/grpc/stats"
)
const (
// https://github.com/grpc/proposal/blob/master/A6-client-retries.md#limits-on-retries-and-hedges
defaultMaxCallAttempts = 5
)
func init() {
internal.AddGlobalDialOptions = func(opt ...DialOption) {
globalDialOptions = append(globalDialOptions, opt...)
}
internal.ClearGlobalDialOptions = func() {
globalDialOptions = nil
}
internal.AddGlobalPerTargetDialOptions = func(opt any) {
if ptdo, ok := opt.(perTargetDialOption); ok {
globalPerTargetDialOptions = append(globalPerTargetDialOptions, ptdo)
}
}
internal.ClearGlobalPerTargetDialOptions = func() {
globalPerTargetDialOptions = nil
}
internal.WithBinaryLogger = withBinaryLogger
internal.JoinDialOptions = newJoinDialOption
internal.DisableGlobalDialOptions = newDisableGlobalDialOptions
internal.WithBufferPool = withBufferPool
}
// dialOptions configure a Dial call. dialOptions are set by the DialOption
// values passed to Dial.
type dialOptions struct {
unaryInt UnaryClientInterceptor
streamInt StreamClientInterceptor
chainUnaryInts []UnaryClientInterceptor
chainStreamInts []StreamClientInterceptor
cp Compressor
dc Decompressor
bs internalbackoff.Strategy
block bool
returnLastError bool
timeout time.Duration
authority string
binaryLogger binarylog.Logger
copts transport.ConnectOptions
callOptions []CallOption
channelzParent channelz.Identifier
disableServiceConfig bool
disableRetry bool
disableHealthCheck bool
minConnectTimeout func() time.Duration
defaultServiceConfig *ServiceConfig // defaultServiceConfig is parsed from defaultServiceConfigRawJSON.
defaultServiceConfigRawJSON *string
resolvers []resolver.Builder
idleTimeout time.Duration
defaultScheme string
maxCallAttempts int
}
// DialOption configures how we set up the connection.
type DialOption interface {
apply(*dialOptions)
}
var globalDialOptions []DialOption
// perTargetDialOption takes a parsed target and returns a dial option to apply.
//
// This gets called after NewClient() parses the target, and allows per target
// configuration set through a returned DialOption. The DialOption will not take
// effect if specifies a resolver builder, as that Dial Option is factored in
// while parsing target.
type perTargetDialOption interface {
// DialOption returns a Dial Option to apply.
DialOptionForTarget(parsedTarget url.URL) DialOption
}
var globalPerTargetDialOptions []perTargetDialOption
// EmptyDialOption does not alter the dial configuration. It can be embedded in
// another structure to build custom dial options.
//
// # Experimental
//
// Notice: This type is EXPERIMENTAL and may be changed or removed in a
// later release.
type EmptyDialOption struct{}
func (EmptyDialOption) apply(*dialOptions) {}
type disableGlobalDialOptions struct{}
func (disableGlobalDialOptions) apply(*dialOptions) {}
// newDisableGlobalDialOptions returns a DialOption that prevents the ClientConn
// from applying the global DialOptions (set via AddGlobalDialOptions).
func newDisableGlobalDialOptions() DialOption {
return &disableGlobalDialOptions{}
}
// funcDialOption wraps a function that modifies dialOptions into an
// implementation of the DialOption interface.
type funcDialOption struct {
f func(*dialOptions)
}
func (fdo *funcDialOption) apply(do *dialOptions) {
fdo.f(do)
}
func newFuncDialOption(f func(*dialOptions)) *funcDialOption {
return &funcDialOption{
f: f,
}
}
type joinDialOption struct {
opts []DialOption
}
func (jdo *joinDialOption) apply(do *dialOptions) {
for _, opt := range jdo.opts {
opt.apply(do)
}
}
func newJoinDialOption(opts ...DialOption) DialOption {
return &joinDialOption{opts: opts}
}
// WithSharedWriteBuffer allows reusing per-connection transport write buffer.
// If this option is set to true every connection will release the buffer after
// flushing the data on the wire.
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func WithSharedWriteBuffer(val bool) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.SharedWriteBuffer = val
})
}
// WithWriteBufferSize determines how much data can be batched before doing a
// write on the wire. The default value for this buffer is 32KB.
//
// Zero or negative values will disable the write buffer such that each write
// will be on underlying connection. Note: A Send call may not directly
// translate to a write.
func WithWriteBufferSize(s int) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.WriteBufferSize = s
})
}
// WithReadBufferSize lets you set the size of read buffer, this determines how
// much data can be read at most for each read syscall.
//
// The default value for this buffer is 32KB. Zero or negative values will
// disable read buffer for a connection so data framer can access the
// underlying conn directly.
func WithReadBufferSize(s int) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.ReadBufferSize = s
})
}
// WithInitialWindowSize returns a DialOption which sets the value for initial
// window size on a stream. The lower bound for window size is 64K and any value
// smaller than that will be ignored.
func WithInitialWindowSize(s int32) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.InitialWindowSize = s
})
}
// WithInitialConnWindowSize returns a DialOption which sets the value for
// initial window size on a connection. The lower bound for window size is 64K
// and any value smaller than that will be ignored.
func WithInitialConnWindowSize(s int32) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.InitialConnWindowSize = s
})
}
// WithMaxMsgSize returns a DialOption which sets the maximum message size the
// client can receive.
//
// Deprecated: use WithDefaultCallOptions(MaxCallRecvMsgSize(s)) instead. Will
// be supported throughout 1.x.
func WithMaxMsgSize(s int) DialOption {
return WithDefaultCallOptions(MaxCallRecvMsgSize(s))
}
// WithDefaultCallOptions returns a DialOption which sets the default
// CallOptions for calls over the connection.
func WithDefaultCallOptions(cos ...CallOption) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.callOptions = append(o.callOptions, cos...)
})
}
// WithCodec returns a DialOption which sets a codec for message marshaling and
// unmarshaling.
//
// Deprecated: use WithDefaultCallOptions(ForceCodec(_)) instead. Will be
// supported throughout 1.x.
func WithCodec(c Codec) DialOption {
return WithDefaultCallOptions(CallCustomCodec(c))
}
// WithCompressor returns a DialOption which sets a Compressor to use for
// message compression. It has lower priority than the compressor set by the
// UseCompressor CallOption.
//
// Deprecated: use UseCompressor instead. Will be supported throughout 1.x.
func WithCompressor(cp Compressor) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.cp = cp
})
}
// WithDecompressor returns a DialOption which sets a Decompressor to use for
// incoming message decompression. If incoming response messages are encoded
// using the decompressor's Type(), it will be used. Otherwise, the message
// encoding will be used to look up the compressor registered via
// encoding.RegisterCompressor, which will then be used to decompress the
// message. If no compressor is registered for the encoding, an Unimplemented
// status error will be returned.
//
// Deprecated: use encoding.RegisterCompressor instead. Will be supported
// throughout 1.x.
func WithDecompressor(dc Decompressor) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.dc = dc
})
}
// WithConnectParams configures the ClientConn to use the provided ConnectParams
// for creating and maintaining connections to servers.
//
// The backoff configuration specified as part of the ConnectParams overrides
// all defaults specified in
// https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md. Consider
// using the backoff.DefaultConfig as a base, in cases where you want to
// override only a subset of the backoff configuration.
func WithConnectParams(p ConnectParams) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.bs = internalbackoff.Exponential{Config: p.Backoff}
o.minConnectTimeout = func() time.Duration {
return p.MinConnectTimeout
}
})
}
// WithBackoffMaxDelay configures the dialer to use the provided maximum delay
// when backing off after failed connection attempts.
//
// Deprecated: use WithConnectParams instead. Will be supported throughout 1.x.
func WithBackoffMaxDelay(md time.Duration) DialOption {
return WithBackoffConfig(BackoffConfig{MaxDelay: md})
}
// WithBackoffConfig configures the dialer to use the provided backoff
// parameters after connection failures.
//
// Deprecated: use WithConnectParams instead. Will be supported throughout 1.x.
func WithBackoffConfig(b BackoffConfig) DialOption {
bc := backoff.DefaultConfig
bc.MaxDelay = b.MaxDelay
return withBackoff(internalbackoff.Exponential{Config: bc})
}
// withBackoff sets the backoff strategy used for connectRetryNum after a failed
// connection attempt.
//
// This can be exported if arbitrary backoff strategies are allowed by gRPC.
func withBackoff(bs internalbackoff.Strategy) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.bs = bs
})
}
// WithBlock returns a DialOption which makes callers of Dial block until the
// underlying connection is up. Without this, Dial returns immediately and
// connecting the server happens in background.
//
// Use of this feature is not recommended. For more information, please see:
// https://github.com/grpc/grpc-go/blob/master/Documentation/anti-patterns.md
//
// Deprecated: this DialOption is not supported by NewClient.
// Will be supported throughout 1.x.
func WithBlock() DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.block = true
})
}
// WithReturnConnectionError returns a DialOption which makes the client connection
// return a string containing both the last connection error that occurred and
// the context.DeadlineExceeded error.
// Implies WithBlock()
//
// Use of this feature is not recommended. For more information, please see:
// https://github.com/grpc/grpc-go/blob/master/Documentation/anti-patterns.md
//
// Deprecated: this DialOption is not supported by NewClient.
// Will be supported throughout 1.x.
func WithReturnConnectionError() DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.block = true
o.returnLastError = true
})
}
// WithInsecure returns a DialOption which disables transport security for this
// ClientConn. Under the hood, it uses insecure.NewCredentials().
//
// Note that using this DialOption with per-RPC credentials (through
// WithCredentialsBundle or WithPerRPCCredentials) which require transport
// security is incompatible and will cause grpc.Dial() to fail.
//
// Deprecated: use WithTransportCredentials and insecure.NewCredentials()
// instead. Will be supported throughout 1.x.
func WithInsecure() DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.TransportCredentials = insecure.NewCredentials()
})
}
// WithNoProxy returns a DialOption which disables the use of proxies for this
// ClientConn. This is ignored if WithDialer or WithContextDialer are used.
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func WithNoProxy() DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.UseProxy = false
})
}
// WithTransportCredentials returns a DialOption which configures a connection
// level security credentials (e.g., TLS/SSL). This should not be used together
// with WithCredentialsBundle.
func WithTransportCredentials(creds credentials.TransportCredentials) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.TransportCredentials = creds
})
}
// WithPerRPCCredentials returns a DialOption which sets credentials and places
// auth state on each outbound RPC.
func WithPerRPCCredentials(creds credentials.PerRPCCredentials) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.PerRPCCredentials = append(o.copts.PerRPCCredentials, creds)
})
}
// WithCredentialsBundle returns a DialOption to set a credentials bundle for
// the ClientConn.WithCreds. This should not be used together with
// WithTransportCredentials.
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func WithCredentialsBundle(b credentials.Bundle) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.CredsBundle = b
})
}
// WithTimeout returns a DialOption that configures a timeout for dialing a
// ClientConn initially. This is valid if and only if WithBlock() is present.
//
// Deprecated: this DialOption is not supported by NewClient.
// Will be supported throughout 1.x.
func WithTimeout(d time.Duration) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.timeout = d
})
}
// WithContextDialer returns a DialOption that sets a dialer to create
// connections. If FailOnNonTempDialError() is set to true, and an error is
// returned by f, gRPC checks the error's Temporary() method to decide if it
// should try to reconnect to the network address.
//
// Note that gRPC by default performs name resolution on the target passed to
// NewClient. To bypass name resolution and cause the target string to be
// passed directly to the dialer here instead, use the "passthrough" resolver
// by specifying it in the target string, e.g. "passthrough:target".
//
// Note: All supported releases of Go (as of December 2023) override the OS
// defaults for TCP keepalive time and interval to 15s. To enable TCP keepalive
// with OS defaults for keepalive time and interval, use a net.Dialer that sets
// the KeepAlive field to a negative value, and sets the SO_KEEPALIVE socket
// option to true from the Control field. For a concrete example of how to do
// this, see internal.NetDialerWithTCPKeepalive().
//
// For more information, please see [issue 23459] in the Go GitHub repo.
//
// [issue 23459]: https://github.com/golang/go/issues/23459
func WithContextDialer(f func(context.Context, string) (net.Conn, error)) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.Dialer = f
})
}
// WithDialer returns a DialOption that specifies a function to use for dialing
// network addresses. If FailOnNonTempDialError() is set to true, and an error
// is returned by f, gRPC checks the error's Temporary() method to decide if it
// should try to reconnect to the network address.
//
// Deprecated: use WithContextDialer instead. Will be supported throughout
// 1.x.
func WithDialer(f func(string, time.Duration) (net.Conn, error)) DialOption {
return WithContextDialer(
func(ctx context.Context, addr string) (net.Conn, error) {
if deadline, ok := ctx.Deadline(); ok {
return f(addr, time.Until(deadline))
}
return f(addr, 0)
})
}
// WithStatsHandler returns a DialOption that specifies the stats handler for
// all the RPCs and underlying network connections in this ClientConn.
func WithStatsHandler(h stats.Handler) DialOption {
return newFuncDialOption(func(o *dialOptions) {
if h == nil {
logger.Error("ignoring nil parameter in grpc.WithStatsHandler ClientOption")
// Do not allow a nil stats handler, which would otherwise cause
// panics.
return
}
o.copts.StatsHandlers = append(o.copts.StatsHandlers, h)
})
}
// withBinaryLogger returns a DialOption that specifies the binary logger for
// this ClientConn.
func withBinaryLogger(bl binarylog.Logger) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.binaryLogger = bl
})
}
// FailOnNonTempDialError returns a DialOption that specifies if gRPC fails on
// non-temporary dial errors. If f is true, and dialer returns a non-temporary
// error, gRPC will fail the connection to the network address and won't try to
// reconnect. The default value of FailOnNonTempDialError is false.
//
// FailOnNonTempDialError only affects the initial dial, and does not do
// anything useful unless you are also using WithBlock().
//
// Use of this feature is not recommended. For more information, please see:
// https://github.com/grpc/grpc-go/blob/master/Documentation/anti-patterns.md
//
// Deprecated: this DialOption is not supported by NewClient.
// This API may be changed or removed in a
// later release.
func FailOnNonTempDialError(f bool) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.FailOnNonTempDialError = f
})
}
// WithUserAgent returns a DialOption that specifies a user agent string for all
// the RPCs.
func WithUserAgent(s string) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.UserAgent = s + " " + grpcUA
})
}
// WithKeepaliveParams returns a DialOption that specifies keepalive parameters
// for the client transport.
//
// Keepalive is disabled by default.
func WithKeepaliveParams(kp keepalive.ClientParameters) DialOption {
if kp.Time < internal.KeepaliveMinPingTime {
logger.Warningf("Adjusting keepalive ping interval to minimum period of %v", internal.KeepaliveMinPingTime)
kp.Time = internal.KeepaliveMinPingTime
}
return newFuncDialOption(func(o *dialOptions) {
o.copts.KeepaliveParams = kp
})
}
// WithUnaryInterceptor returns a DialOption that specifies the interceptor for
// unary RPCs.
func WithUnaryInterceptor(f UnaryClientInterceptor) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.unaryInt = f
})
}
// WithChainUnaryInterceptor returns a DialOption that specifies the chained
// interceptor for unary RPCs. The first interceptor will be the outer most,
// while the last interceptor will be the inner most wrapper around the real call.
// All interceptors added by this method will be chained, and the interceptor
// defined by WithUnaryInterceptor will always be prepended to the chain.
func WithChainUnaryInterceptor(interceptors ...UnaryClientInterceptor) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.chainUnaryInts = append(o.chainUnaryInts, interceptors...)
})
}
// WithStreamInterceptor returns a DialOption that specifies the interceptor for
// streaming RPCs.
func WithStreamInterceptor(f StreamClientInterceptor) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.streamInt = f
})
}
// WithChainStreamInterceptor returns a DialOption that specifies the chained
// interceptor for streaming RPCs. The first interceptor will be the outer most,
// while the last interceptor will be the inner most wrapper around the real call.
// All interceptors added by this method will be chained, and the interceptor
// defined by WithStreamInterceptor will always be prepended to the chain.
func WithChainStreamInterceptor(interceptors ...StreamClientInterceptor) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.chainStreamInts = append(o.chainStreamInts, interceptors...)
})
}
// WithAuthority returns a DialOption that specifies the value to be used as the
// :authority pseudo-header and as the server name in authentication handshake.
func WithAuthority(a string) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.authority = a
})
}
// WithChannelzParentID returns a DialOption that specifies the channelz ID of
// current ClientConn's parent. This function is used in nested channel creation
// (e.g. grpclb dial).
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func WithChannelzParentID(c channelz.Identifier) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.channelzParent = c
})
}
// WithDisableServiceConfig returns a DialOption that causes gRPC to ignore any
// service config provided by the resolver and provides a hint to the resolver
// to not fetch service configs.
//
// Note that this dial option only disables service config from resolver. If
// default service config is provided, gRPC will use the default service config.
func WithDisableServiceConfig() DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.disableServiceConfig = true
})
}
// WithDefaultServiceConfig returns a DialOption that configures the default
// service config, which will be used in cases where:
//
// 1. WithDisableServiceConfig is also used, or
//
// 2. The name resolver does not provide a service config or provides an
// invalid service config.
//
// The parameter s is the JSON representation of the default service config.
// For more information about service configs, see:
// https://github.com/grpc/grpc/blob/master/doc/service_config.md
// For a simple example of usage, see:
// examples/features/load_balancing/client/main.go
func WithDefaultServiceConfig(s string) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.defaultServiceConfigRawJSON = &s
})
}
// WithDisableRetry returns a DialOption that disables retries, even if the
// service config enables them. This does not impact transparent retries, which
// will happen automatically if no data is written to the wire or if the RPC is
// unprocessed by the remote server.
func WithDisableRetry() DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.disableRetry = true
})
}
// MaxHeaderListSizeDialOption is a DialOption that specifies the maximum
// (uncompressed) size of header list that the client is prepared to accept.
type MaxHeaderListSizeDialOption struct {
MaxHeaderListSize uint32
}
func (o MaxHeaderListSizeDialOption) apply(do *dialOptions) {
do.copts.MaxHeaderListSize = &o.MaxHeaderListSize
}
// WithMaxHeaderListSize returns a DialOption that specifies the maximum
// (uncompressed) size of header list that the client is prepared to accept.
func WithMaxHeaderListSize(s uint32) DialOption {
return MaxHeaderListSizeDialOption{
MaxHeaderListSize: s,
}
}
// WithDisableHealthCheck disables the LB channel health checking for all
// SubConns of this ClientConn.
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func WithDisableHealthCheck() DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.disableHealthCheck = true
})
}
func defaultDialOptions() dialOptions {
return dialOptions{
copts: transport.ConnectOptions{
ReadBufferSize: defaultReadBufSize,
WriteBufferSize: defaultWriteBufSize,
UseProxy: true,
UserAgent: grpcUA,
BufferPool: mem.DefaultBufferPool(),
},
bs: internalbackoff.DefaultExponential,
idleTimeout: 30 * time.Minute,
defaultScheme: "dns",
maxCallAttempts: defaultMaxCallAttempts,
}
}
// withMinConnectDeadline specifies the function that clientconn uses to
// get minConnectDeadline. This can be used to make connection attempts happen
// faster/slower.
//
// For testing purpose only.
func withMinConnectDeadline(f func() time.Duration) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.minConnectTimeout = f
})
}
// withDefaultScheme is used to allow Dial to use "passthrough" as the default
// name resolver, while NewClient uses "dns" otherwise.
func withDefaultScheme(s string) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.defaultScheme = s
})
}
// WithResolvers allows a list of resolver implementations to be registered
// locally with the ClientConn without needing to be globally registered via
// resolver.Register. They will be matched against the scheme used for the
// current Dial only, and will take precedence over the global registry.
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func WithResolvers(rs ...resolver.Builder) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.resolvers = append(o.resolvers, rs...)
})
}
// WithIdleTimeout returns a DialOption that configures an idle timeout for the
// channel. If the channel is idle for the configured timeout, i.e there are no
// ongoing RPCs and no new RPCs are initiated, the channel will enter idle mode
// and as a result the name resolver and load balancer will be shut down. The
// channel will exit idle mode when the Connect() method is called or when an
// RPC is initiated.
//
// A default timeout of 30 minutes will be used if this dial option is not set
// at dial time and idleness can be disabled by passing a timeout of zero.
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func WithIdleTimeout(d time.Duration) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.idleTimeout = d
})
}
// WithMaxCallAttempts returns a DialOption that configures the maximum number
// of attempts per call (including retries and hedging) using the channel.
// Service owners may specify a higher value for these parameters, but higher
// values will be treated as equal to the maximum value by the client
// implementation. This mitigates security concerns related to the service
// config being transferred to the client via DNS.
//
// A value of 5 will be used if this dial option is not set or n < 2.
func WithMaxCallAttempts(n int) DialOption {
return newFuncDialOption(func(o *dialOptions) {
if n < 2 {
n = defaultMaxCallAttempts
}
o.maxCallAttempts = n
})
}
func withBufferPool(bufferPool mem.BufferPool) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.copts.BufferPool = bufferPool
})
}

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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
//go:generate ./scripts/regenerate.sh
/*
Package grpc implements an RPC system called gRPC.
See grpc.io for more information about gRPC.
*/
package grpc // import "google.golang.org/grpc"

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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package encoding defines the interface for the compressor and codec, and
// functions to register and retrieve compressors and codecs.
//
// # Experimental
//
// Notice: This package is EXPERIMENTAL and may be changed or removed in a
// later release.
package encoding
import (
"io"
"strings"
"google.golang.org/grpc/internal/grpcutil"
)
// Identity specifies the optional encoding for uncompressed streams.
// It is intended for grpc internal use only.
const Identity = "identity"
// Compressor is used for compressing and decompressing when sending or
// receiving messages.
//
// If a Compressor implements `DecompressedSize(compressedBytes []byte) int`,
// gRPC will invoke it to determine the size of the buffer allocated for the
// result of decompression. A return value of -1 indicates unknown size.
type Compressor interface {
// Compress writes the data written to wc to w after compressing it. If an
// error occurs while initializing the compressor, that error is returned
// instead.
Compress(w io.Writer) (io.WriteCloser, error)
// Decompress reads data from r, decompresses it, and provides the
// uncompressed data via the returned io.Reader. If an error occurs while
// initializing the decompressor, that error is returned instead.
Decompress(r io.Reader) (io.Reader, error)
// Name is the name of the compression codec and is used to set the content
// coding header. The result must be static; the result cannot change
// between calls.
Name() string
}
var registeredCompressor = make(map[string]Compressor)
// RegisterCompressor registers the compressor with gRPC by its name. It can
// be activated when sending an RPC via grpc.UseCompressor(). It will be
// automatically accessed when receiving a message based on the content coding
// header. Servers also use it to send a response with the same encoding as
// the request.
//
// NOTE: this function must only be called during initialization time (i.e. in
// an init() function), and is not thread-safe. If multiple Compressors are
// registered with the same name, the one registered last will take effect.
func RegisterCompressor(c Compressor) {
registeredCompressor[c.Name()] = c
if !grpcutil.IsCompressorNameRegistered(c.Name()) {
grpcutil.RegisteredCompressorNames = append(grpcutil.RegisteredCompressorNames, c.Name())
}
}
// GetCompressor returns Compressor for the given compressor name.
func GetCompressor(name string) Compressor {
return registeredCompressor[name]
}
// Codec defines the interface gRPC uses to encode and decode messages. Note
// that implementations of this interface must be thread safe; a Codec's
// methods can be called from concurrent goroutines.
type Codec interface {
// Marshal returns the wire format of v.
Marshal(v any) ([]byte, error)
// Unmarshal parses the wire format into v.
Unmarshal(data []byte, v any) error
// Name returns the name of the Codec implementation. The returned string
// will be used as part of content type in transmission. The result must be
// static; the result cannot change between calls.
Name() string
}
var registeredCodecs = make(map[string]any)
// RegisterCodec registers the provided Codec for use with all gRPC clients and
// servers.
//
// The Codec will be stored and looked up by result of its Name() method, which
// should match the content-subtype of the encoding handled by the Codec. This
// is case-insensitive, and is stored and looked up as lowercase. If the
// result of calling Name() is an empty string, RegisterCodec will panic. See
// Content-Type on
// https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#requests for
// more details.
//
// NOTE: this function must only be called during initialization time (i.e. in
// an init() function), and is not thread-safe. If multiple Codecs are
// registered with the same name, the one registered last will take effect.
func RegisterCodec(codec Codec) {
if codec == nil {
panic("cannot register a nil Codec")
}
if codec.Name() == "" {
panic("cannot register Codec with empty string result for Name()")
}
contentSubtype := strings.ToLower(codec.Name())
registeredCodecs[contentSubtype] = codec
}
// GetCodec gets a registered Codec by content-subtype, or nil if no Codec is
// registered for the content-subtype.
//
// The content-subtype is expected to be lowercase.
func GetCodec(contentSubtype string) Codec {
c, _ := registeredCodecs[contentSubtype].(Codec)
return c
}

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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package encoding
import (
"strings"
"google.golang.org/grpc/mem"
)
// CodecV2 defines the interface gRPC uses to encode and decode messages. Note
// that implementations of this interface must be thread safe; a CodecV2's
// methods can be called from concurrent goroutines.
type CodecV2 interface {
// Marshal returns the wire format of v. The buffers in the returned
// [mem.BufferSlice] must have at least one reference each, which will be freed
// by gRPC when they are no longer needed.
Marshal(v any) (out mem.BufferSlice, err error)
// Unmarshal parses the wire format into v. Note that data will be freed as soon
// as this function returns. If the codec wishes to guarantee access to the data
// after this function, it must take its own reference that it frees when it is
// no longer needed.
Unmarshal(data mem.BufferSlice, v any) error
// Name returns the name of the Codec implementation. The returned string
// will be used as part of content type in transmission. The result must be
// static; the result cannot change between calls.
Name() string
}
// RegisterCodecV2 registers the provided CodecV2 for use with all gRPC clients and
// servers.
//
// The CodecV2 will be stored and looked up by result of its Name() method, which
// should match the content-subtype of the encoding handled by the CodecV2. This
// is case-insensitive, and is stored and looked up as lowercase. If the
// result of calling Name() is an empty string, RegisterCodecV2 will panic. See
// Content-Type on
// https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#requests for
// more details.
//
// If both a Codec and CodecV2 are registered with the same name, the CodecV2
// will be used.
//
// NOTE: this function must only be called during initialization time (i.e. in
// an init() function), and is not thread-safe. If multiple Codecs are
// registered with the same name, the one registered last will take effect.
func RegisterCodecV2(codec CodecV2) {
if codec == nil {
panic("cannot register a nil CodecV2")
}
if codec.Name() == "" {
panic("cannot register CodecV2 with empty string result for Name()")
}
contentSubtype := strings.ToLower(codec.Name())
registeredCodecs[contentSubtype] = codec
}
// GetCodecV2 gets a registered CodecV2 by content-subtype, or nil if no CodecV2 is
// registered for the content-subtype.
//
// The content-subtype is expected to be lowercase.
func GetCodecV2(contentSubtype string) CodecV2 {
c, _ := registeredCodecs[contentSubtype].(CodecV2)
return c
}

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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package gzip implements and registers the gzip compressor
// during the initialization.
//
// # Experimental
//
// Notice: This package is EXPERIMENTAL and may be changed or removed in a
// later release.
package gzip
import (
"compress/gzip"
"encoding/binary"
"fmt"
"io"
"sync"
"google.golang.org/grpc/encoding"
)
// Name is the name registered for the gzip compressor.
const Name = "gzip"
func init() {
c := &compressor{}
c.poolCompressor.New = func() any {
return &writer{Writer: gzip.NewWriter(io.Discard), pool: &c.poolCompressor}
}
encoding.RegisterCompressor(c)
}
type writer struct {
*gzip.Writer
pool *sync.Pool
}
// SetLevel updates the registered gzip compressor to use the compression level specified (gzip.HuffmanOnly is not supported).
// NOTE: this function must only be called during initialization time (i.e. in an init() function),
// and is not thread-safe.
//
// The error returned will be nil if the specified level is valid.
func SetLevel(level int) error {
if level < gzip.DefaultCompression || level > gzip.BestCompression {
return fmt.Errorf("grpc: invalid gzip compression level: %d", level)
}
c := encoding.GetCompressor(Name).(*compressor)
c.poolCompressor.New = func() any {
w, err := gzip.NewWriterLevel(io.Discard, level)
if err != nil {
panic(err)
}
return &writer{Writer: w, pool: &c.poolCompressor}
}
return nil
}
func (c *compressor) Compress(w io.Writer) (io.WriteCloser, error) {
z := c.poolCompressor.Get().(*writer)
z.Writer.Reset(w)
return z, nil
}
func (z *writer) Close() error {
defer z.pool.Put(z)
return z.Writer.Close()
}
type reader struct {
*gzip.Reader
pool *sync.Pool
}
func (c *compressor) Decompress(r io.Reader) (io.Reader, error) {
z, inPool := c.poolDecompressor.Get().(*reader)
if !inPool {
newZ, err := gzip.NewReader(r)
if err != nil {
return nil, err
}
return &reader{Reader: newZ, pool: &c.poolDecompressor}, nil
}
if err := z.Reset(r); err != nil {
c.poolDecompressor.Put(z)
return nil, err
}
return z, nil
}
func (z *reader) Read(p []byte) (n int, err error) {
n, err = z.Reader.Read(p)
if err == io.EOF {
z.pool.Put(z)
}
return n, err
}
// RFC1952 specifies that the last four bytes "contains the size of
// the original (uncompressed) input data modulo 2^32."
// gRPC has a max message size of 2GB so we don't need to worry about wraparound.
func (c *compressor) DecompressedSize(buf []byte) int {
last := len(buf)
if last < 4 {
return -1
}
return int(binary.LittleEndian.Uint32(buf[last-4 : last]))
}
func (c *compressor) Name() string {
return Name
}
type compressor struct {
poolCompressor sync.Pool
poolDecompressor sync.Pool
}

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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package proto defines the protobuf codec. Importing this package will
// register the codec.
package proto
import (
"fmt"
"google.golang.org/grpc/encoding"
"google.golang.org/grpc/mem"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/protoadapt"
)
// Name is the name registered for the proto compressor.
const Name = "proto"
func init() {
encoding.RegisterCodecV2(&codecV2{})
}
// codec is a CodecV2 implementation with protobuf. It is the default codec for
// gRPC.
type codecV2 struct{}
func (c *codecV2) Marshal(v any) (data mem.BufferSlice, err error) {
vv := messageV2Of(v)
if vv == nil {
return nil, fmt.Errorf("proto: failed to marshal, message is %T, want proto.Message", v)
}
size := proto.Size(vv)
if mem.IsBelowBufferPoolingThreshold(size) {
buf, err := proto.Marshal(vv)
if err != nil {
return nil, err
}
data = append(data, mem.SliceBuffer(buf))
} else {
pool := mem.DefaultBufferPool()
buf := pool.Get(size)
if _, err := (proto.MarshalOptions{}).MarshalAppend((*buf)[:0], vv); err != nil {
pool.Put(buf)
return nil, err
}
data = append(data, mem.NewBuffer(buf, pool))
}
return data, nil
}
func (c *codecV2) Unmarshal(data mem.BufferSlice, v any) (err error) {
vv := messageV2Of(v)
if vv == nil {
return fmt.Errorf("failed to unmarshal, message is %T, want proto.Message", v)
}
buf := data.MaterializeToBuffer(mem.DefaultBufferPool())
defer buf.Free()
// TODO: Upgrade proto.Unmarshal to support mem.BufferSlice. Right now, it's not
// really possible without a major overhaul of the proto package, but the
// vtprotobuf library may be able to support this.
return proto.Unmarshal(buf.ReadOnlyData(), vv)
}
func messageV2Of(v any) proto.Message {
switch v := v.(type) {
case protoadapt.MessageV1:
return protoadapt.MessageV2Of(v)
case protoadapt.MessageV2:
return v
}
return nil
}
func (c *codecV2) Name() string {
return Name
}

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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package stats
import (
"maps"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal"
"google.golang.org/grpc/stats"
)
func init() {
internal.SnapshotMetricRegistryForTesting = snapshotMetricsRegistryForTesting
}
var logger = grpclog.Component("metrics-registry")
// DefaultMetrics are the default metrics registered through global metrics
// registry. This is written to at initialization time only, and is read only
// after initialization.
var DefaultMetrics = stats.NewMetricSet()
// MetricDescriptor is the data for a registered metric.
type MetricDescriptor struct {
// The name of this metric. This name must be unique across the whole binary
// (including any per call metrics). See
// https://github.com/grpc/proposal/blob/master/A79-non-per-call-metrics-architecture.md#metric-instrument-naming-conventions
// for metric naming conventions.
Name string
// The description of this metric.
Description string
// The unit (e.g. entries, seconds) of this metric.
Unit string
// The required label keys for this metric. These are intended to
// metrics emitted from a stats handler.
Labels []string
// The optional label keys for this metric. These are intended to attached
// to metrics emitted from a stats handler if configured.
OptionalLabels []string
// Whether this metric is on by default.
Default bool
// The type of metric. This is set by the metric registry, and not intended
// to be set by a component registering a metric.
Type MetricType
// Bounds are the bounds of this metric. This only applies to histogram
// metrics. If unset or set with length 0, stats handlers will fall back to
// default bounds.
Bounds []float64
}
// MetricType is the type of metric.
type MetricType int
// Type of metric supported by this instrument registry.
const (
MetricTypeIntCount MetricType = iota
MetricTypeFloatCount
MetricTypeIntHisto
MetricTypeFloatHisto
MetricTypeIntGauge
)
// Int64CountHandle is a typed handle for a int count metric. This handle
// is passed at the recording point in order to know which metric to record
// on.
type Int64CountHandle MetricDescriptor
// Descriptor returns the int64 count handle typecast to a pointer to a
// MetricDescriptor.
func (h *Int64CountHandle) Descriptor() *MetricDescriptor {
return (*MetricDescriptor)(h)
}
// Record records the int64 count value on the metrics recorder provided.
func (h *Int64CountHandle) Record(recorder MetricsRecorder, incr int64, labels ...string) {
recorder.RecordInt64Count(h, incr, labels...)
}
// Float64CountHandle is a typed handle for a float count metric. This handle is
// passed at the recording point in order to know which metric to record on.
type Float64CountHandle MetricDescriptor
// Descriptor returns the float64 count handle typecast to a pointer to a
// MetricDescriptor.
func (h *Float64CountHandle) Descriptor() *MetricDescriptor {
return (*MetricDescriptor)(h)
}
// Record records the float64 count value on the metrics recorder provided.
func (h *Float64CountHandle) Record(recorder MetricsRecorder, incr float64, labels ...string) {
recorder.RecordFloat64Count(h, incr, labels...)
}
// Int64HistoHandle is a typed handle for an int histogram metric. This handle
// is passed at the recording point in order to know which metric to record on.
type Int64HistoHandle MetricDescriptor
// Descriptor returns the int64 histo handle typecast to a pointer to a
// MetricDescriptor.
func (h *Int64HistoHandle) Descriptor() *MetricDescriptor {
return (*MetricDescriptor)(h)
}
// Record records the int64 histo value on the metrics recorder provided.
func (h *Int64HistoHandle) Record(recorder MetricsRecorder, incr int64, labels ...string) {
recorder.RecordInt64Histo(h, incr, labels...)
}
// Float64HistoHandle is a typed handle for a float histogram metric. This
// handle is passed at the recording point in order to know which metric to
// record on.
type Float64HistoHandle MetricDescriptor
// Descriptor returns the float64 histo handle typecast to a pointer to a
// MetricDescriptor.
func (h *Float64HistoHandle) Descriptor() *MetricDescriptor {
return (*MetricDescriptor)(h)
}
// Record records the float64 histo value on the metrics recorder provided.
func (h *Float64HistoHandle) Record(recorder MetricsRecorder, incr float64, labels ...string) {
recorder.RecordFloat64Histo(h, incr, labels...)
}
// Int64GaugeHandle is a typed handle for an int gauge metric. This handle is
// passed at the recording point in order to know which metric to record on.
type Int64GaugeHandle MetricDescriptor
// Descriptor returns the int64 gauge handle typecast to a pointer to a
// MetricDescriptor.
func (h *Int64GaugeHandle) Descriptor() *MetricDescriptor {
return (*MetricDescriptor)(h)
}
// Record records the int64 histo value on the metrics recorder provided.
func (h *Int64GaugeHandle) Record(recorder MetricsRecorder, incr int64, labels ...string) {
recorder.RecordInt64Gauge(h, incr, labels...)
}
// registeredMetrics are the registered metric descriptor names.
var registeredMetrics = make(map[string]bool)
// metricsRegistry contains all of the registered metrics.
//
// This is written to only at init time, and read only after that.
var metricsRegistry = make(map[string]*MetricDescriptor)
// DescriptorForMetric returns the MetricDescriptor from the global registry.
//
// Returns nil if MetricDescriptor not present.
func DescriptorForMetric(metricName string) *MetricDescriptor {
return metricsRegistry[metricName]
}
func registerMetric(metricName string, def bool) {
if registeredMetrics[metricName] {
logger.Fatalf("metric %v already registered", metricName)
}
registeredMetrics[metricName] = true
if def {
DefaultMetrics = DefaultMetrics.Add(metricName)
}
}
// RegisterInt64Count registers the metric description onto the global registry.
// It returns a typed handle to use to recording data.
//
// NOTE: this function must only be called during initialization time (i.e. in
// an init() function), and is not thread-safe. If multiple metrics are
// registered with the same name, this function will panic.
func RegisterInt64Count(descriptor MetricDescriptor) *Int64CountHandle {
registerMetric(descriptor.Name, descriptor.Default)
descriptor.Type = MetricTypeIntCount
descPtr := &descriptor
metricsRegistry[descriptor.Name] = descPtr
return (*Int64CountHandle)(descPtr)
}
// RegisterFloat64Count registers the metric description onto the global
// registry. It returns a typed handle to use to recording data.
//
// NOTE: this function must only be called during initialization time (i.e. in
// an init() function), and is not thread-safe. If multiple metrics are
// registered with the same name, this function will panic.
func RegisterFloat64Count(descriptor MetricDescriptor) *Float64CountHandle {
registerMetric(descriptor.Name, descriptor.Default)
descriptor.Type = MetricTypeFloatCount
descPtr := &descriptor
metricsRegistry[descriptor.Name] = descPtr
return (*Float64CountHandle)(descPtr)
}
// RegisterInt64Histo registers the metric description onto the global registry.
// It returns a typed handle to use to recording data.
//
// NOTE: this function must only be called during initialization time (i.e. in
// an init() function), and is not thread-safe. If multiple metrics are
// registered with the same name, this function will panic.
func RegisterInt64Histo(descriptor MetricDescriptor) *Int64HistoHandle {
registerMetric(descriptor.Name, descriptor.Default)
descriptor.Type = MetricTypeIntHisto
descPtr := &descriptor
metricsRegistry[descriptor.Name] = descPtr
return (*Int64HistoHandle)(descPtr)
}
// RegisterFloat64Histo registers the metric description onto the global
// registry. It returns a typed handle to use to recording data.
//
// NOTE: this function must only be called during initialization time (i.e. in
// an init() function), and is not thread-safe. If multiple metrics are
// registered with the same name, this function will panic.
func RegisterFloat64Histo(descriptor MetricDescriptor) *Float64HistoHandle {
registerMetric(descriptor.Name, descriptor.Default)
descriptor.Type = MetricTypeFloatHisto
descPtr := &descriptor
metricsRegistry[descriptor.Name] = descPtr
return (*Float64HistoHandle)(descPtr)
}
// RegisterInt64Gauge registers the metric description onto the global registry.
// It returns a typed handle to use to recording data.
//
// NOTE: this function must only be called during initialization time (i.e. in
// an init() function), and is not thread-safe. If multiple metrics are
// registered with the same name, this function will panic.
func RegisterInt64Gauge(descriptor MetricDescriptor) *Int64GaugeHandle {
registerMetric(descriptor.Name, descriptor.Default)
descriptor.Type = MetricTypeIntGauge
descPtr := &descriptor
metricsRegistry[descriptor.Name] = descPtr
return (*Int64GaugeHandle)(descPtr)
}
// snapshotMetricsRegistryForTesting snapshots the global data of the metrics
// registry. Returns a cleanup function that sets the metrics registry to its
// original state.
func snapshotMetricsRegistryForTesting() func() {
oldDefaultMetrics := DefaultMetrics
oldRegisteredMetrics := registeredMetrics
oldMetricsRegistry := metricsRegistry
registeredMetrics = make(map[string]bool)
metricsRegistry = make(map[string]*MetricDescriptor)
maps.Copy(registeredMetrics, registeredMetrics)
maps.Copy(metricsRegistry, metricsRegistry)
return func() {
DefaultMetrics = oldDefaultMetrics
registeredMetrics = oldRegisteredMetrics
metricsRegistry = oldMetricsRegistry
}
}

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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package stats contains experimental metrics/stats API's.
package stats
import "google.golang.org/grpc/stats"
// MetricsRecorder records on metrics derived from metric registry.
type MetricsRecorder interface {
// RecordInt64Count records the measurement alongside labels on the int
// count associated with the provided handle.
RecordInt64Count(handle *Int64CountHandle, incr int64, labels ...string)
// RecordFloat64Count records the measurement alongside labels on the float
// count associated with the provided handle.
RecordFloat64Count(handle *Float64CountHandle, incr float64, labels ...string)
// RecordInt64Histo records the measurement alongside labels on the int
// histo associated with the provided handle.
RecordInt64Histo(handle *Int64HistoHandle, incr int64, labels ...string)
// RecordFloat64Histo records the measurement alongside labels on the float
// histo associated with the provided handle.
RecordFloat64Histo(handle *Float64HistoHandle, incr float64, labels ...string)
// RecordInt64Gauge records the measurement alongside labels on the int
// gauge associated with the provided handle.
RecordInt64Gauge(handle *Int64GaugeHandle, incr int64, labels ...string)
}
// Metrics is an experimental legacy alias of the now-stable stats.MetricSet.
// Metrics will be deleted in a future release.
type Metrics = stats.MetricSet
// Metric was replaced by direct usage of strings.
type Metric = string
// NewMetrics is an experimental legacy alias of the now-stable
// stats.NewMetricSet. NewMetrics will be deleted in a future release.
func NewMetrics(metrics ...Metric) *Metrics {
return stats.NewMetricSet(metrics...)
}

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/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpclog
import (
"fmt"
)
// componentData records the settings for a component.
type componentData struct {
name string
}
var cache = map[string]*componentData{}
func (c *componentData) InfoDepth(depth int, args ...any) {
args = append([]any{"[" + string(c.name) + "]"}, args...)
InfoDepth(depth+1, args...)
}
func (c *componentData) WarningDepth(depth int, args ...any) {
args = append([]any{"[" + string(c.name) + "]"}, args...)
WarningDepth(depth+1, args...)
}
func (c *componentData) ErrorDepth(depth int, args ...any) {
args = append([]any{"[" + string(c.name) + "]"}, args...)
ErrorDepth(depth+1, args...)
}
func (c *componentData) FatalDepth(depth int, args ...any) {
args = append([]any{"[" + string(c.name) + "]"}, args...)
FatalDepth(depth+1, args...)
}
func (c *componentData) Info(args ...any) {
c.InfoDepth(1, args...)
}
func (c *componentData) Warning(args ...any) {
c.WarningDepth(1, args...)
}
func (c *componentData) Error(args ...any) {
c.ErrorDepth(1, args...)
}
func (c *componentData) Fatal(args ...any) {
c.FatalDepth(1, args...)
}
func (c *componentData) Infof(format string, args ...any) {
c.InfoDepth(1, fmt.Sprintf(format, args...))
}
func (c *componentData) Warningf(format string, args ...any) {
c.WarningDepth(1, fmt.Sprintf(format, args...))
}
func (c *componentData) Errorf(format string, args ...any) {
c.ErrorDepth(1, fmt.Sprintf(format, args...))
}
func (c *componentData) Fatalf(format string, args ...any) {
c.FatalDepth(1, fmt.Sprintf(format, args...))
}
func (c *componentData) Infoln(args ...any) {
c.InfoDepth(1, args...)
}
func (c *componentData) Warningln(args ...any) {
c.WarningDepth(1, args...)
}
func (c *componentData) Errorln(args ...any) {
c.ErrorDepth(1, args...)
}
func (c *componentData) Fatalln(args ...any) {
c.FatalDepth(1, args...)
}
func (c *componentData) V(l int) bool {
return V(l)
}
// Component creates a new component and returns it for logging. If a component
// with the name already exists, nothing will be created and it will be
// returned. SetLoggerV2 will panic if it is called with a logger created by
// Component.
func Component(componentName string) DepthLoggerV2 {
if cData, ok := cache[componentName]; ok {
return cData
}
c := &componentData{componentName}
cache[componentName] = c
return c
}

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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package grpclog defines logging for grpc.
//
// In the default logger, severity level can be set by environment variable
// GRPC_GO_LOG_SEVERITY_LEVEL, verbosity level can be set by
// GRPC_GO_LOG_VERBOSITY_LEVEL.
package grpclog
import (
"os"
"google.golang.org/grpc/grpclog/internal"
)
func init() {
SetLoggerV2(newLoggerV2())
}
// V reports whether verbosity level l is at least the requested verbose level.
func V(l int) bool {
return internal.LoggerV2Impl.V(l)
}
// Info logs to the INFO log.
func Info(args ...any) {
internal.LoggerV2Impl.Info(args...)
}
// Infof logs to the INFO log. Arguments are handled in the manner of fmt.Printf.
func Infof(format string, args ...any) {
internal.LoggerV2Impl.Infof(format, args...)
}
// Infoln logs to the INFO log. Arguments are handled in the manner of fmt.Println.
func Infoln(args ...any) {
internal.LoggerV2Impl.Infoln(args...)
}
// Warning logs to the WARNING log.
func Warning(args ...any) {
internal.LoggerV2Impl.Warning(args...)
}
// Warningf logs to the WARNING log. Arguments are handled in the manner of fmt.Printf.
func Warningf(format string, args ...any) {
internal.LoggerV2Impl.Warningf(format, args...)
}
// Warningln logs to the WARNING log. Arguments are handled in the manner of fmt.Println.
func Warningln(args ...any) {
internal.LoggerV2Impl.Warningln(args...)
}
// Error logs to the ERROR log.
func Error(args ...any) {
internal.LoggerV2Impl.Error(args...)
}
// Errorf logs to the ERROR log. Arguments are handled in the manner of fmt.Printf.
func Errorf(format string, args ...any) {
internal.LoggerV2Impl.Errorf(format, args...)
}
// Errorln logs to the ERROR log. Arguments are handled in the manner of fmt.Println.
func Errorln(args ...any) {
internal.LoggerV2Impl.Errorln(args...)
}
// Fatal logs to the FATAL log. Arguments are handled in the manner of fmt.Print.
// It calls os.Exit() with exit code 1.
func Fatal(args ...any) {
internal.LoggerV2Impl.Fatal(args...)
// Make sure fatal logs will exit.
os.Exit(1)
}
// Fatalf logs to the FATAL log. Arguments are handled in the manner of fmt.Printf.
// It calls os.Exit() with exit code 1.
func Fatalf(format string, args ...any) {
internal.LoggerV2Impl.Fatalf(format, args...)
// Make sure fatal logs will exit.
os.Exit(1)
}
// Fatalln logs to the FATAL log. Arguments are handled in the manner of fmt.Println.
// It calls os.Exit() with exit code 1.
func Fatalln(args ...any) {
internal.LoggerV2Impl.Fatalln(args...)
// Make sure fatal logs will exit.
os.Exit(1)
}
// Print prints to the logger. Arguments are handled in the manner of fmt.Print.
//
// Deprecated: use Info.
func Print(args ...any) {
internal.LoggerV2Impl.Info(args...)
}
// Printf prints to the logger. Arguments are handled in the manner of fmt.Printf.
//
// Deprecated: use Infof.
func Printf(format string, args ...any) {
internal.LoggerV2Impl.Infof(format, args...)
}
// Println prints to the logger. Arguments are handled in the manner of fmt.Println.
//
// Deprecated: use Infoln.
func Println(args ...any) {
internal.LoggerV2Impl.Infoln(args...)
}
// InfoDepth logs to the INFO log at the specified depth.
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func InfoDepth(depth int, args ...any) {
if internal.DepthLoggerV2Impl != nil {
internal.DepthLoggerV2Impl.InfoDepth(depth, args...)
} else {
internal.LoggerV2Impl.Infoln(args...)
}
}
// WarningDepth logs to the WARNING log at the specified depth.
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func WarningDepth(depth int, args ...any) {
if internal.DepthLoggerV2Impl != nil {
internal.DepthLoggerV2Impl.WarningDepth(depth, args...)
} else {
internal.LoggerV2Impl.Warningln(args...)
}
}
// ErrorDepth logs to the ERROR log at the specified depth.
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func ErrorDepth(depth int, args ...any) {
if internal.DepthLoggerV2Impl != nil {
internal.DepthLoggerV2Impl.ErrorDepth(depth, args...)
} else {
internal.LoggerV2Impl.Errorln(args...)
}
}
// FatalDepth logs to the FATAL log at the specified depth.
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func FatalDepth(depth int, args ...any) {
if internal.DepthLoggerV2Impl != nil {
internal.DepthLoggerV2Impl.FatalDepth(depth, args...)
} else {
internal.LoggerV2Impl.Fatalln(args...)
}
os.Exit(1)
}

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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package internal contains functionality internal to the grpclog package.
package internal
// LoggerV2Impl is the logger used for the non-depth log functions.
var LoggerV2Impl LoggerV2
// DepthLoggerV2Impl is the logger used for the depth log functions.
var DepthLoggerV2Impl DepthLoggerV2

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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package internal
// Logger mimics golang's standard Logger as an interface.
//
// Deprecated: use LoggerV2.
type Logger interface {
Fatal(args ...any)
Fatalf(format string, args ...any)
Fatalln(args ...any)
Print(args ...any)
Printf(format string, args ...any)
Println(args ...any)
}
// LoggerWrapper wraps Logger into a LoggerV2.
type LoggerWrapper struct {
Logger
}
// Info logs to INFO log. Arguments are handled in the manner of fmt.Print.
func (l *LoggerWrapper) Info(args ...any) {
l.Logger.Print(args...)
}
// Infoln logs to INFO log. Arguments are handled in the manner of fmt.Println.
func (l *LoggerWrapper) Infoln(args ...any) {
l.Logger.Println(args...)
}
// Infof logs to INFO log. Arguments are handled in the manner of fmt.Printf.
func (l *LoggerWrapper) Infof(format string, args ...any) {
l.Logger.Printf(format, args...)
}
// Warning logs to WARNING log. Arguments are handled in the manner of fmt.Print.
func (l *LoggerWrapper) Warning(args ...any) {
l.Logger.Print(args...)
}
// Warningln logs to WARNING log. Arguments are handled in the manner of fmt.Println.
func (l *LoggerWrapper) Warningln(args ...any) {
l.Logger.Println(args...)
}
// Warningf logs to WARNING log. Arguments are handled in the manner of fmt.Printf.
func (l *LoggerWrapper) Warningf(format string, args ...any) {
l.Logger.Printf(format, args...)
}
// Error logs to ERROR log. Arguments are handled in the manner of fmt.Print.
func (l *LoggerWrapper) Error(args ...any) {
l.Logger.Print(args...)
}
// Errorln logs to ERROR log. Arguments are handled in the manner of fmt.Println.
func (l *LoggerWrapper) Errorln(args ...any) {
l.Logger.Println(args...)
}
// Errorf logs to ERROR log. Arguments are handled in the manner of fmt.Printf.
func (l *LoggerWrapper) Errorf(format string, args ...any) {
l.Logger.Printf(format, args...)
}
// V reports whether verbosity level l is at least the requested verbose level.
func (*LoggerWrapper) V(int) bool {
// Returns true for all verbose level.
return true
}

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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package internal
import (
"encoding/json"
"fmt"
"io"
"log"
"os"
)
// LoggerV2 does underlying logging work for grpclog.
type LoggerV2 interface {
// Info logs to INFO log. Arguments are handled in the manner of fmt.Print.
Info(args ...any)
// Infoln logs to INFO log. Arguments are handled in the manner of fmt.Println.
Infoln(args ...any)
// Infof logs to INFO log. Arguments are handled in the manner of fmt.Printf.
Infof(format string, args ...any)
// Warning logs to WARNING log. Arguments are handled in the manner of fmt.Print.
Warning(args ...any)
// Warningln logs to WARNING log. Arguments are handled in the manner of fmt.Println.
Warningln(args ...any)
// Warningf logs to WARNING log. Arguments are handled in the manner of fmt.Printf.
Warningf(format string, args ...any)
// Error logs to ERROR log. Arguments are handled in the manner of fmt.Print.
Error(args ...any)
// Errorln logs to ERROR log. Arguments are handled in the manner of fmt.Println.
Errorln(args ...any)
// Errorf logs to ERROR log. Arguments are handled in the manner of fmt.Printf.
Errorf(format string, args ...any)
// Fatal logs to ERROR log. Arguments are handled in the manner of fmt.Print.
// gRPC ensures that all Fatal logs will exit with os.Exit(1).
// Implementations may also call os.Exit() with a non-zero exit code.
Fatal(args ...any)
// Fatalln logs to ERROR log. Arguments are handled in the manner of fmt.Println.
// gRPC ensures that all Fatal logs will exit with os.Exit(1).
// Implementations may also call os.Exit() with a non-zero exit code.
Fatalln(args ...any)
// Fatalf logs to ERROR log. Arguments are handled in the manner of fmt.Printf.
// gRPC ensures that all Fatal logs will exit with os.Exit(1).
// Implementations may also call os.Exit() with a non-zero exit code.
Fatalf(format string, args ...any)
// V reports whether verbosity level l is at least the requested verbose level.
V(l int) bool
}
// DepthLoggerV2 logs at a specified call frame. If a LoggerV2 also implements
// DepthLoggerV2, the below functions will be called with the appropriate stack
// depth set for trivial functions the logger may ignore.
//
// # Experimental
//
// Notice: This type is EXPERIMENTAL and may be changed or removed in a
// later release.
type DepthLoggerV2 interface {
LoggerV2
// InfoDepth logs to INFO log at the specified depth. Arguments are handled in the manner of fmt.Println.
InfoDepth(depth int, args ...any)
// WarningDepth logs to WARNING log at the specified depth. Arguments are handled in the manner of fmt.Println.
WarningDepth(depth int, args ...any)
// ErrorDepth logs to ERROR log at the specified depth. Arguments are handled in the manner of fmt.Println.
ErrorDepth(depth int, args ...any)
// FatalDepth logs to FATAL log at the specified depth. Arguments are handled in the manner of fmt.Println.
FatalDepth(depth int, args ...any)
}
const (
// infoLog indicates Info severity.
infoLog int = iota
// warningLog indicates Warning severity.
warningLog
// errorLog indicates Error severity.
errorLog
// fatalLog indicates Fatal severity.
fatalLog
)
// severityName contains the string representation of each severity.
var severityName = []string{
infoLog: "INFO",
warningLog: "WARNING",
errorLog: "ERROR",
fatalLog: "FATAL",
}
// sprintf is fmt.Sprintf.
// These vars exist to make it possible to test that expensive format calls aren't made unnecessarily.
var sprintf = fmt.Sprintf
// sprint is fmt.Sprint.
// These vars exist to make it possible to test that expensive format calls aren't made unnecessarily.
var sprint = fmt.Sprint
// sprintln is fmt.Sprintln.
// These vars exist to make it possible to test that expensive format calls aren't made unnecessarily.
var sprintln = fmt.Sprintln
// exit is os.Exit.
// This var exists to make it possible to test functions calling os.Exit.
var exit = os.Exit
// loggerT is the default logger used by grpclog.
type loggerT struct {
m []*log.Logger
v int
jsonFormat bool
}
func (g *loggerT) output(severity int, s string) {
sevStr := severityName[severity]
if !g.jsonFormat {
g.m[severity].Output(2, sevStr+": "+s)
return
}
// TODO: we can also include the logging component, but that needs more
// (API) changes.
b, _ := json.Marshal(map[string]string{
"severity": sevStr,
"message": s,
})
g.m[severity].Output(2, string(b))
}
func (g *loggerT) printf(severity int, format string, args ...any) {
// Note the discard check is duplicated in each print func, rather than in
// output, to avoid the expensive Sprint calls.
// De-duplicating this by moving to output would be a significant performance regression!
if lg := g.m[severity]; lg.Writer() == io.Discard {
return
}
g.output(severity, sprintf(format, args...))
}
func (g *loggerT) print(severity int, v ...any) {
if lg := g.m[severity]; lg.Writer() == io.Discard {
return
}
g.output(severity, sprint(v...))
}
func (g *loggerT) println(severity int, v ...any) {
if lg := g.m[severity]; lg.Writer() == io.Discard {
return
}
g.output(severity, sprintln(v...))
}
func (g *loggerT) Info(args ...any) {
g.print(infoLog, args...)
}
func (g *loggerT) Infoln(args ...any) {
g.println(infoLog, args...)
}
func (g *loggerT) Infof(format string, args ...any) {
g.printf(infoLog, format, args...)
}
func (g *loggerT) Warning(args ...any) {
g.print(warningLog, args...)
}
func (g *loggerT) Warningln(args ...any) {
g.println(warningLog, args...)
}
func (g *loggerT) Warningf(format string, args ...any) {
g.printf(warningLog, format, args...)
}
func (g *loggerT) Error(args ...any) {
g.print(errorLog, args...)
}
func (g *loggerT) Errorln(args ...any) {
g.println(errorLog, args...)
}
func (g *loggerT) Errorf(format string, args ...any) {
g.printf(errorLog, format, args...)
}
func (g *loggerT) Fatal(args ...any) {
g.print(fatalLog, args...)
exit(1)
}
func (g *loggerT) Fatalln(args ...any) {
g.println(fatalLog, args...)
exit(1)
}
func (g *loggerT) Fatalf(format string, args ...any) {
g.printf(fatalLog, format, args...)
exit(1)
}
func (g *loggerT) V(l int) bool {
return l <= g.v
}
// LoggerV2Config configures the LoggerV2 implementation.
type LoggerV2Config struct {
// Verbosity sets the verbosity level of the logger.
Verbosity int
// FormatJSON controls whether the logger should output logs in JSON format.
FormatJSON bool
}
// combineLoggers returns a combined logger for both higher & lower severity logs,
// or only one if the other is io.Discard.
//
// This uses io.Discard instead of io.MultiWriter when all loggers
// are set to io.Discard. Both this package and the standard log package have
// significant optimizations for io.Discard, which io.MultiWriter lacks (as of
// this writing).
func combineLoggers(lower, higher io.Writer) io.Writer {
if lower == io.Discard {
return higher
}
if higher == io.Discard {
return lower
}
return io.MultiWriter(lower, higher)
}
// NewLoggerV2 creates a new LoggerV2 instance with the provided configuration.
// The infoW, warningW, and errorW writers are used to write log messages of
// different severity levels.
func NewLoggerV2(infoW, warningW, errorW io.Writer, c LoggerV2Config) LoggerV2 {
flag := log.LstdFlags
if c.FormatJSON {
flag = 0
}
warningW = combineLoggers(infoW, warningW)
errorW = combineLoggers(errorW, warningW)
fatalW := errorW
m := []*log.Logger{
log.New(infoW, "", flag),
log.New(warningW, "", flag),
log.New(errorW, "", flag),
log.New(fatalW, "", flag),
}
return &loggerT{m: m, v: c.Verbosity, jsonFormat: c.FormatJSON}
}

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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpclog
import "google.golang.org/grpc/grpclog/internal"
// Logger mimics golang's standard Logger as an interface.
//
// Deprecated: use LoggerV2.
type Logger internal.Logger
// SetLogger sets the logger that is used in grpc. Call only from
// init() functions.
//
// Deprecated: use SetLoggerV2.
func SetLogger(l Logger) {
internal.LoggerV2Impl = &internal.LoggerWrapper{Logger: l}
}

97
e2e/vendor/google.golang.org/grpc/grpclog/loggerv2.go generated vendored Normal file
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@ -0,0 +1,97 @@
/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpclog
import (
"io"
"os"
"strconv"
"strings"
"google.golang.org/grpc/grpclog/internal"
)
// LoggerV2 does underlying logging work for grpclog.
type LoggerV2 internal.LoggerV2
// SetLoggerV2 sets logger that is used in grpc to a V2 logger.
// Not mutex-protected, should be called before any gRPC functions.
func SetLoggerV2(l LoggerV2) {
if _, ok := l.(*componentData); ok {
panic("cannot use component logger as grpclog logger")
}
internal.LoggerV2Impl = l
internal.DepthLoggerV2Impl, _ = l.(internal.DepthLoggerV2)
}
// NewLoggerV2 creates a loggerV2 with the provided writers.
// Fatal logs will be written to errorW, warningW, infoW, followed by exit(1).
// Error logs will be written to errorW, warningW and infoW.
// Warning logs will be written to warningW and infoW.
// Info logs will be written to infoW.
func NewLoggerV2(infoW, warningW, errorW io.Writer) LoggerV2 {
return internal.NewLoggerV2(infoW, warningW, errorW, internal.LoggerV2Config{})
}
// NewLoggerV2WithVerbosity creates a loggerV2 with the provided writers and
// verbosity level.
func NewLoggerV2WithVerbosity(infoW, warningW, errorW io.Writer, v int) LoggerV2 {
return internal.NewLoggerV2(infoW, warningW, errorW, internal.LoggerV2Config{Verbosity: v})
}
// newLoggerV2 creates a loggerV2 to be used as default logger.
// All logs are written to stderr.
func newLoggerV2() LoggerV2 {
errorW := io.Discard
warningW := io.Discard
infoW := io.Discard
logLevel := os.Getenv("GRPC_GO_LOG_SEVERITY_LEVEL")
switch logLevel {
case "", "ERROR", "error": // If env is unset, set level to ERROR.
errorW = os.Stderr
case "WARNING", "warning":
warningW = os.Stderr
case "INFO", "info":
infoW = os.Stderr
}
var v int
vLevel := os.Getenv("GRPC_GO_LOG_VERBOSITY_LEVEL")
if vl, err := strconv.Atoi(vLevel); err == nil {
v = vl
}
jsonFormat := strings.EqualFold(os.Getenv("GRPC_GO_LOG_FORMATTER"), "json")
return internal.NewLoggerV2(infoW, warningW, errorW, internal.LoggerV2Config{
Verbosity: v,
FormatJSON: jsonFormat,
})
}
// DepthLoggerV2 logs at a specified call frame. If a LoggerV2 also implements
// DepthLoggerV2, the below functions will be called with the appropriate stack
// depth set for trivial functions the logger may ignore.
//
// # Experimental
//
// Notice: This type is EXPERIMENTAL and may be changed or removed in a
// later release.
type DepthLoggerV2 internal.DepthLoggerV2

278
e2e/vendor/google.golang.org/grpc/health/grpc_health_v1/health.pb.go generated vendored Normal file
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@ -0,0 +1,278 @@
// Copyright 2015 The gRPC Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// The canonical version of this proto can be found at
// https://github.com/grpc/grpc-proto/blob/master/grpc/health/v1/health.proto
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.35.2
// protoc v5.27.1
// source: grpc/health/v1/health.proto
package grpc_health_v1
import (
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
type HealthCheckResponse_ServingStatus int32
const (
HealthCheckResponse_UNKNOWN HealthCheckResponse_ServingStatus = 0
HealthCheckResponse_SERVING HealthCheckResponse_ServingStatus = 1
HealthCheckResponse_NOT_SERVING HealthCheckResponse_ServingStatus = 2
HealthCheckResponse_SERVICE_UNKNOWN HealthCheckResponse_ServingStatus = 3 // Used only by the Watch method.
)
// Enum value maps for HealthCheckResponse_ServingStatus.
var (
HealthCheckResponse_ServingStatus_name = map[int32]string{
0: "UNKNOWN",
1: "SERVING",
2: "NOT_SERVING",
3: "SERVICE_UNKNOWN",
}
HealthCheckResponse_ServingStatus_value = map[string]int32{
"UNKNOWN": 0,
"SERVING": 1,
"NOT_SERVING": 2,
"SERVICE_UNKNOWN": 3,
}
)
func (x HealthCheckResponse_ServingStatus) Enum() *HealthCheckResponse_ServingStatus {
p := new(HealthCheckResponse_ServingStatus)
*p = x
return p
}
func (x HealthCheckResponse_ServingStatus) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (HealthCheckResponse_ServingStatus) Descriptor() protoreflect.EnumDescriptor {
return file_grpc_health_v1_health_proto_enumTypes[0].Descriptor()
}
func (HealthCheckResponse_ServingStatus) Type() protoreflect.EnumType {
return &file_grpc_health_v1_health_proto_enumTypes[0]
}
func (x HealthCheckResponse_ServingStatus) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use HealthCheckResponse_ServingStatus.Descriptor instead.
func (HealthCheckResponse_ServingStatus) EnumDescriptor() ([]byte, []int) {
return file_grpc_health_v1_health_proto_rawDescGZIP(), []int{1, 0}
}
type HealthCheckRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"`
}
func (x *HealthCheckRequest) Reset() {
*x = HealthCheckRequest{}
mi := &file_grpc_health_v1_health_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
func (x *HealthCheckRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*HealthCheckRequest) ProtoMessage() {}
func (x *HealthCheckRequest) ProtoReflect() protoreflect.Message {
mi := &file_grpc_health_v1_health_proto_msgTypes[0]
if x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use HealthCheckRequest.ProtoReflect.Descriptor instead.
func (*HealthCheckRequest) Descriptor() ([]byte, []int) {
return file_grpc_health_v1_health_proto_rawDescGZIP(), []int{0}
}
func (x *HealthCheckRequest) GetService() string {
if x != nil {
return x.Service
}
return ""
}
type HealthCheckResponse struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Status HealthCheckResponse_ServingStatus `protobuf:"varint,1,opt,name=status,proto3,enum=grpc.health.v1.HealthCheckResponse_ServingStatus" json:"status,omitempty"`
}
func (x *HealthCheckResponse) Reset() {
*x = HealthCheckResponse{}
mi := &file_grpc_health_v1_health_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
func (x *HealthCheckResponse) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*HealthCheckResponse) ProtoMessage() {}
func (x *HealthCheckResponse) ProtoReflect() protoreflect.Message {
mi := &file_grpc_health_v1_health_proto_msgTypes[1]
if x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use HealthCheckResponse.ProtoReflect.Descriptor instead.
func (*HealthCheckResponse) Descriptor() ([]byte, []int) {
return file_grpc_health_v1_health_proto_rawDescGZIP(), []int{1}
}
func (x *HealthCheckResponse) GetStatus() HealthCheckResponse_ServingStatus {
if x != nil {
return x.Status
}
return HealthCheckResponse_UNKNOWN
}
var File_grpc_health_v1_health_proto protoreflect.FileDescriptor
var file_grpc_health_v1_health_proto_rawDesc = []byte{
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}
var (
file_grpc_health_v1_health_proto_rawDescOnce sync.Once
file_grpc_health_v1_health_proto_rawDescData = file_grpc_health_v1_health_proto_rawDesc
)
func file_grpc_health_v1_health_proto_rawDescGZIP() []byte {
file_grpc_health_v1_health_proto_rawDescOnce.Do(func() {
file_grpc_health_v1_health_proto_rawDescData = protoimpl.X.CompressGZIP(file_grpc_health_v1_health_proto_rawDescData)
})
return file_grpc_health_v1_health_proto_rawDescData
}
var file_grpc_health_v1_health_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
var file_grpc_health_v1_health_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
var file_grpc_health_v1_health_proto_goTypes = []any{
(HealthCheckResponse_ServingStatus)(0), // 0: grpc.health.v1.HealthCheckResponse.ServingStatus
(*HealthCheckRequest)(nil), // 1: grpc.health.v1.HealthCheckRequest
(*HealthCheckResponse)(nil), // 2: grpc.health.v1.HealthCheckResponse
}
var file_grpc_health_v1_health_proto_depIdxs = []int32{
0, // 0: grpc.health.v1.HealthCheckResponse.status:type_name -> grpc.health.v1.HealthCheckResponse.ServingStatus
1, // 1: grpc.health.v1.Health.Check:input_type -> grpc.health.v1.HealthCheckRequest
1, // 2: grpc.health.v1.Health.Watch:input_type -> grpc.health.v1.HealthCheckRequest
2, // 3: grpc.health.v1.Health.Check:output_type -> grpc.health.v1.HealthCheckResponse
2, // 4: grpc.health.v1.Health.Watch:output_type -> grpc.health.v1.HealthCheckResponse
3, // [3:5] is the sub-list for method output_type
1, // [1:3] is the sub-list for method input_type
1, // [1:1] is the sub-list for extension type_name
1, // [1:1] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
}
func init() { file_grpc_health_v1_health_proto_init() }
func file_grpc_health_v1_health_proto_init() {
if File_grpc_health_v1_health_proto != nil {
return
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_grpc_health_v1_health_proto_rawDesc,
NumEnums: 1,
NumMessages: 2,
NumExtensions: 0,
NumServices: 1,
},
GoTypes: file_grpc_health_v1_health_proto_goTypes,
DependencyIndexes: file_grpc_health_v1_health_proto_depIdxs,
EnumInfos: file_grpc_health_v1_health_proto_enumTypes,
MessageInfos: file_grpc_health_v1_health_proto_msgTypes,
}.Build()
File_grpc_health_v1_health_proto = out.File
file_grpc_health_v1_health_proto_rawDesc = nil
file_grpc_health_v1_health_proto_goTypes = nil
file_grpc_health_v1_health_proto_depIdxs = nil
}

234
e2e/vendor/google.golang.org/grpc/health/grpc_health_v1/health_grpc.pb.go generated vendored Normal file
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@ -0,0 +1,234 @@
// Copyright 2015 The gRPC Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// The canonical version of this proto can be found at
// https://github.com/grpc/grpc-proto/blob/master/grpc/health/v1/health.proto
// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
// versions:
// - protoc-gen-go-grpc v1.5.1
// - protoc v5.27.1
// source: grpc/health/v1/health.proto
package grpc_health_v1
import (
context "context"
grpc "google.golang.org/grpc"
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"
)
// This is a compile-time assertion to ensure that this generated file
// is compatible with the grpc package it is being compiled against.
// Requires gRPC-Go v1.64.0 or later.
const _ = grpc.SupportPackageIsVersion9
const (
Health_Check_FullMethodName = "/grpc.health.v1.Health/Check"
Health_Watch_FullMethodName = "/grpc.health.v1.Health/Watch"
)
// HealthClient is the client API for Health service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
//
// Health is gRPC's mechanism for checking whether a server is able to handle
// RPCs. Its semantics are documented in
// https://github.com/grpc/grpc/blob/master/doc/health-checking.md.
type HealthClient interface {
// Check gets the health of the specified service. If the requested service
// is unknown, the call will fail with status NOT_FOUND. If the caller does
// not specify a service name, the server should respond with its overall
// health status.
//
// Clients should set a deadline when calling Check, and can declare the
// server unhealthy if they do not receive a timely response.
//
// Check implementations should be idempotent and side effect free.
Check(ctx context.Context, in *HealthCheckRequest, opts ...grpc.CallOption) (*HealthCheckResponse, error)
// Performs a watch for the serving status of the requested service.
// The server will immediately send back a message indicating the current
// serving status. It will then subsequently send a new message whenever
// the service's serving status changes.
//
// If the requested service is unknown when the call is received, the
// server will send a message setting the serving status to
// SERVICE_UNKNOWN but will *not* terminate the call. If at some
// future point, the serving status of the service becomes known, the
// server will send a new message with the service's serving status.
//
// If the call terminates with status UNIMPLEMENTED, then clients
// should assume this method is not supported and should not retry the
// call. If the call terminates with any other status (including OK),
// clients should retry the call with appropriate exponential backoff.
Watch(ctx context.Context, in *HealthCheckRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[HealthCheckResponse], error)
}
type healthClient struct {
cc grpc.ClientConnInterface
}
func NewHealthClient(cc grpc.ClientConnInterface) HealthClient {
return &healthClient{cc}
}
func (c *healthClient) Check(ctx context.Context, in *HealthCheckRequest, opts ...grpc.CallOption) (*HealthCheckResponse, error) {
cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
out := new(HealthCheckResponse)
err := c.cc.Invoke(ctx, Health_Check_FullMethodName, in, out, cOpts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *healthClient) Watch(ctx context.Context, in *HealthCheckRequest, opts ...grpc.CallOption) (grpc.ServerStreamingClient[HealthCheckResponse], error) {
cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
stream, err := c.cc.NewStream(ctx, &Health_ServiceDesc.Streams[0], Health_Watch_FullMethodName, cOpts...)
if err != nil {
return nil, err
}
x := &grpc.GenericClientStream[HealthCheckRequest, HealthCheckResponse]{ClientStream: stream}
if err := x.ClientStream.SendMsg(in); err != nil {
return nil, err
}
if err := x.ClientStream.CloseSend(); err != nil {
return nil, err
}
return x, nil
}
// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
type Health_WatchClient = grpc.ServerStreamingClient[HealthCheckResponse]
// HealthServer is the server API for Health service.
// All implementations should embed UnimplementedHealthServer
// for forward compatibility.
//
// Health is gRPC's mechanism for checking whether a server is able to handle
// RPCs. Its semantics are documented in
// https://github.com/grpc/grpc/blob/master/doc/health-checking.md.
type HealthServer interface {
// Check gets the health of the specified service. If the requested service
// is unknown, the call will fail with status NOT_FOUND. If the caller does
// not specify a service name, the server should respond with its overall
// health status.
//
// Clients should set a deadline when calling Check, and can declare the
// server unhealthy if they do not receive a timely response.
//
// Check implementations should be idempotent and side effect free.
Check(context.Context, *HealthCheckRequest) (*HealthCheckResponse, error)
// Performs a watch for the serving status of the requested service.
// The server will immediately send back a message indicating the current
// serving status. It will then subsequently send a new message whenever
// the service's serving status changes.
//
// If the requested service is unknown when the call is received, the
// server will send a message setting the serving status to
// SERVICE_UNKNOWN but will *not* terminate the call. If at some
// future point, the serving status of the service becomes known, the
// server will send a new message with the service's serving status.
//
// If the call terminates with status UNIMPLEMENTED, then clients
// should assume this method is not supported and should not retry the
// call. If the call terminates with any other status (including OK),
// clients should retry the call with appropriate exponential backoff.
Watch(*HealthCheckRequest, grpc.ServerStreamingServer[HealthCheckResponse]) error
}
// UnimplementedHealthServer should be embedded to have
// forward compatible implementations.
//
// NOTE: this should be embedded by value instead of pointer to avoid a nil
// pointer dereference when methods are called.
type UnimplementedHealthServer struct{}
func (UnimplementedHealthServer) Check(context.Context, *HealthCheckRequest) (*HealthCheckResponse, error) {
return nil, status.Errorf(codes.Unimplemented, "method Check not implemented")
}
func (UnimplementedHealthServer) Watch(*HealthCheckRequest, grpc.ServerStreamingServer[HealthCheckResponse]) error {
return status.Errorf(codes.Unimplemented, "method Watch not implemented")
}
func (UnimplementedHealthServer) testEmbeddedByValue() {}
// UnsafeHealthServer may be embedded to opt out of forward compatibility for this service.
// Use of this interface is not recommended, as added methods to HealthServer will
// result in compilation errors.
type UnsafeHealthServer interface {
mustEmbedUnimplementedHealthServer()
}
func RegisterHealthServer(s grpc.ServiceRegistrar, srv HealthServer) {
// If the following call panics, it indicates UnimplementedHealthServer was
// embedded by pointer and is nil. This will cause panics if an
// unimplemented method is ever invoked, so we test this at initialization
// time to prevent it from happening at runtime later due to I/O.
if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
t.testEmbeddedByValue()
}
s.RegisterService(&Health_ServiceDesc, srv)
}
func _Health_Check_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(HealthCheckRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(HealthServer).Check(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: Health_Check_FullMethodName,
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(HealthServer).Check(ctx, req.(*HealthCheckRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Health_Watch_Handler(srv interface{}, stream grpc.ServerStream) error {
m := new(HealthCheckRequest)
if err := stream.RecvMsg(m); err != nil {
return err
}
return srv.(HealthServer).Watch(m, &grpc.GenericServerStream[HealthCheckRequest, HealthCheckResponse]{ServerStream: stream})
}
// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
type Health_WatchServer = grpc.ServerStreamingServer[HealthCheckResponse]
// Health_ServiceDesc is the grpc.ServiceDesc for Health service.
// It's only intended for direct use with grpc.RegisterService,
// and not to be introspected or modified (even as a copy)
var Health_ServiceDesc = grpc.ServiceDesc{
ServiceName: "grpc.health.v1.Health",
HandlerType: (*HealthServer)(nil),
Methods: []grpc.MethodDesc{
{
MethodName: "Check",
Handler: _Health_Check_Handler,
},
},
Streams: []grpc.StreamDesc{
{
StreamName: "Watch",
Handler: _Health_Watch_Handler,
ServerStreams: true,
},
},
Metadata: "grpc/health/v1/health.proto",
}

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/*
*
* Copyright 2016 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpc
import (
"context"
)
// UnaryInvoker is called by UnaryClientInterceptor to complete RPCs.
type UnaryInvoker func(ctx context.Context, method string, req, reply any, cc *ClientConn, opts ...CallOption) error
// UnaryClientInterceptor intercepts the execution of a unary RPC on the client.
// Unary interceptors can be specified as a DialOption, using
// WithUnaryInterceptor() or WithChainUnaryInterceptor(), when creating a
// ClientConn. When a unary interceptor(s) is set on a ClientConn, gRPC
// delegates all unary RPC invocations to the interceptor, and it is the
// responsibility of the interceptor to call invoker to complete the processing
// of the RPC.
//
// method is the RPC name. req and reply are the corresponding request and
// response messages. cc is the ClientConn on which the RPC was invoked. invoker
// is the handler to complete the RPC and it is the responsibility of the
// interceptor to call it. opts contain all applicable call options, including
// defaults from the ClientConn as well as per-call options.
//
// The returned error must be compatible with the status package.
type UnaryClientInterceptor func(ctx context.Context, method string, req, reply any, cc *ClientConn, invoker UnaryInvoker, opts ...CallOption) error
// Streamer is called by StreamClientInterceptor to create a ClientStream.
type Streamer func(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (ClientStream, error)
// StreamClientInterceptor intercepts the creation of a ClientStream. Stream
// interceptors can be specified as a DialOption, using WithStreamInterceptor()
// or WithChainStreamInterceptor(), when creating a ClientConn. When a stream
// interceptor(s) is set on the ClientConn, gRPC delegates all stream creations
// to the interceptor, and it is the responsibility of the interceptor to call
// streamer.
//
// desc contains a description of the stream. cc is the ClientConn on which the
// RPC was invoked. streamer is the handler to create a ClientStream and it is
// the responsibility of the interceptor to call it. opts contain all applicable
// call options, including defaults from the ClientConn as well as per-call
// options.
//
// StreamClientInterceptor may return a custom ClientStream to intercept all I/O
// operations. The returned error must be compatible with the status package.
type StreamClientInterceptor func(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, streamer Streamer, opts ...CallOption) (ClientStream, error)
// UnaryServerInfo consists of various information about a unary RPC on
// server side. All per-rpc information may be mutated by the interceptor.
type UnaryServerInfo struct {
// Server is the service implementation the user provides. This is read-only.
Server any
// FullMethod is the full RPC method string, i.e., /package.service/method.
FullMethod string
}
// UnaryHandler defines the handler invoked by UnaryServerInterceptor to complete the normal
// execution of a unary RPC.
//
// If a UnaryHandler returns an error, it should either be produced by the
// status package, or be one of the context errors. Otherwise, gRPC will use
// codes.Unknown as the status code and err.Error() as the status message of the
// RPC.
type UnaryHandler func(ctx context.Context, req any) (any, error)
// UnaryServerInterceptor provides a hook to intercept the execution of a unary RPC on the server. info
// contains all the information of this RPC the interceptor can operate on. And handler is the wrapper
// of the service method implementation. It is the responsibility of the interceptor to invoke handler
// to complete the RPC.
type UnaryServerInterceptor func(ctx context.Context, req any, info *UnaryServerInfo, handler UnaryHandler) (resp any, err error)
// StreamServerInfo consists of various information about a streaming RPC on
// server side. All per-rpc information may be mutated by the interceptor.
type StreamServerInfo struct {
// FullMethod is the full RPC method string, i.e., /package.service/method.
FullMethod string
// IsClientStream indicates whether the RPC is a client streaming RPC.
IsClientStream bool
// IsServerStream indicates whether the RPC is a server streaming RPC.
IsServerStream bool
}
// StreamServerInterceptor provides a hook to intercept the execution of a streaming RPC on the server.
// info contains all the information of this RPC the interceptor can operate on. And handler is the
// service method implementation. It is the responsibility of the interceptor to invoke handler to
// complete the RPC.
type StreamServerInterceptor func(srv any, ss ServerStream, info *StreamServerInfo, handler StreamHandler) error

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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package backoff implement the backoff strategy for gRPC.
//
// This is kept in internal until the gRPC project decides whether or not to
// allow alternative backoff strategies.
package backoff
import (
"context"
"errors"
rand "math/rand/v2"
"time"
grpcbackoff "google.golang.org/grpc/backoff"
)
// Strategy defines the methodology for backing off after a grpc connection
// failure.
type Strategy interface {
// Backoff returns the amount of time to wait before the next retry given
// the number of consecutive failures.
Backoff(retries int) time.Duration
}
// DefaultExponential is an exponential backoff implementation using the
// default values for all the configurable knobs defined in
// https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
var DefaultExponential = Exponential{Config: grpcbackoff.DefaultConfig}
// Exponential implements exponential backoff algorithm as defined in
// https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
type Exponential struct {
// Config contains all options to configure the backoff algorithm.
Config grpcbackoff.Config
}
// Backoff returns the amount of time to wait before the next retry given the
// number of retries.
func (bc Exponential) Backoff(retries int) time.Duration {
if retries == 0 {
return bc.Config.BaseDelay
}
backoff, max := float64(bc.Config.BaseDelay), float64(bc.Config.MaxDelay)
for backoff < max && retries > 0 {
backoff *= bc.Config.Multiplier
retries--
}
if backoff > max {
backoff = max
}
// Randomize backoff delays so that if a cluster of requests start at
// the same time, they won't operate in lockstep.
backoff *= 1 + bc.Config.Jitter*(rand.Float64()*2-1)
if backoff < 0 {
return 0
}
return time.Duration(backoff)
}
// ErrResetBackoff is the error to be returned by the function executed by RunF,
// to instruct the latter to reset its backoff state.
var ErrResetBackoff = errors.New("reset backoff state")
// RunF provides a convenient way to run a function f repeatedly until the
// context expires or f returns a non-nil error that is not ErrResetBackoff.
// When f returns ErrResetBackoff, RunF continues to run f, but resets its
// backoff state before doing so. backoff accepts an integer representing the
// number of retries, and returns the amount of time to backoff.
func RunF(ctx context.Context, f func() error, backoff func(int) time.Duration) {
attempt := 0
timer := time.NewTimer(0)
for ctx.Err() == nil {
select {
case <-timer.C:
case <-ctx.Done():
timer.Stop()
return
}
err := f()
if errors.Is(err, ErrResetBackoff) {
timer.Reset(0)
attempt = 0
continue
}
if err != nil {
return
}
timer.Reset(backoff(attempt))
attempt++
}
}

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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package gracefulswitch
import (
"encoding/json"
"fmt"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/serviceconfig"
)
type lbConfig struct {
serviceconfig.LoadBalancingConfig
childBuilder balancer.Builder
childConfig serviceconfig.LoadBalancingConfig
}
// ChildName returns the name of the child balancer of the gracefulswitch
// Balancer.
func ChildName(l serviceconfig.LoadBalancingConfig) string {
return l.(*lbConfig).childBuilder.Name()
}
// ParseConfig parses a child config list and returns a LB config for the
// gracefulswitch Balancer.
//
// cfg is expected to be a json.RawMessage containing a JSON array of LB policy
// names + configs as the format of the "loadBalancingConfig" field in
// ServiceConfig. It returns a type that should be passed to
// UpdateClientConnState in the BalancerConfig field.
func ParseConfig(cfg json.RawMessage) (serviceconfig.LoadBalancingConfig, error) {
var lbCfg []map[string]json.RawMessage
if err := json.Unmarshal(cfg, &lbCfg); err != nil {
return nil, err
}
for i, e := range lbCfg {
if len(e) != 1 {
return nil, fmt.Errorf("expected a JSON struct with one entry; received entry %v at index %d", e, i)
}
var name string
var jsonCfg json.RawMessage
for name, jsonCfg = range e {
}
builder := balancer.Get(name)
if builder == nil {
// Skip unregistered balancer names.
continue
}
parser, ok := builder.(balancer.ConfigParser)
if !ok {
// This is a valid child with no config.
return &lbConfig{childBuilder: builder}, nil
}
cfg, err := parser.ParseConfig(jsonCfg)
if err != nil {
return nil, fmt.Errorf("error parsing config for policy %q: %v", name, err)
}
return &lbConfig{childBuilder: builder, childConfig: cfg}, nil
}
return nil, fmt.Errorf("no supported policies found in config: %v", string(cfg))
}

419
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/*
*
* Copyright 2022 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package gracefulswitch implements a graceful switch load balancer.
package gracefulswitch
import (
"errors"
"fmt"
"sync"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/balancer/base"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/resolver"
)
var errBalancerClosed = errors.New("gracefulSwitchBalancer is closed")
var _ balancer.Balancer = (*Balancer)(nil)
// NewBalancer returns a graceful switch Balancer.
func NewBalancer(cc balancer.ClientConn, opts balancer.BuildOptions) *Balancer {
return &Balancer{
cc: cc,
bOpts: opts,
}
}
// Balancer is a utility to gracefully switch from one balancer to
// a new balancer. It implements the balancer.Balancer interface.
type Balancer struct {
bOpts balancer.BuildOptions
cc balancer.ClientConn
// mu protects the following fields and all fields within balancerCurrent
// and balancerPending. mu does not need to be held when calling into the
// child balancers, as all calls into these children happen only as a direct
// result of a call into the gracefulSwitchBalancer, which are also
// guaranteed to be synchronous. There is one exception: an UpdateState call
// from a child balancer when current and pending are populated can lead to
// calling Close() on the current. To prevent that racing with an
// UpdateSubConnState from the channel, we hold currentMu during Close and
// UpdateSubConnState calls.
mu sync.Mutex
balancerCurrent *balancerWrapper
balancerPending *balancerWrapper
closed bool // set to true when this balancer is closed
// currentMu must be locked before mu. This mutex guards against this
// sequence of events: UpdateSubConnState() called, finds the
// balancerCurrent, gives up lock, updateState comes in, causes Close() on
// balancerCurrent before the UpdateSubConnState is called on the
// balancerCurrent.
currentMu sync.Mutex
}
// swap swaps out the current lb with the pending lb and updates the ClientConn.
// The caller must hold gsb.mu.
func (gsb *Balancer) swap() {
gsb.cc.UpdateState(gsb.balancerPending.lastState)
cur := gsb.balancerCurrent
gsb.balancerCurrent = gsb.balancerPending
gsb.balancerPending = nil
go func() {
gsb.currentMu.Lock()
defer gsb.currentMu.Unlock()
cur.Close()
}()
}
// Helper function that checks if the balancer passed in is current or pending.
// The caller must hold gsb.mu.
func (gsb *Balancer) balancerCurrentOrPending(bw *balancerWrapper) bool {
return bw == gsb.balancerCurrent || bw == gsb.balancerPending
}
// SwitchTo initializes the graceful switch process, which completes based on
// connectivity state changes on the current/pending balancer. Thus, the switch
// process is not complete when this method returns. This method must be called
// synchronously alongside the rest of the balancer.Balancer methods this
// Graceful Switch Balancer implements.
//
// Deprecated: use ParseConfig and pass a parsed config to UpdateClientConnState
// to cause the Balancer to automatically change to the new child when necessary.
func (gsb *Balancer) SwitchTo(builder balancer.Builder) error {
_, err := gsb.switchTo(builder)
return err
}
func (gsb *Balancer) switchTo(builder balancer.Builder) (*balancerWrapper, error) {
gsb.mu.Lock()
if gsb.closed {
gsb.mu.Unlock()
return nil, errBalancerClosed
}
bw := &balancerWrapper{
builder: builder,
gsb: gsb,
lastState: balancer.State{
ConnectivityState: connectivity.Connecting,
Picker: base.NewErrPicker(balancer.ErrNoSubConnAvailable),
},
subconns: make(map[balancer.SubConn]bool),
}
balToClose := gsb.balancerPending // nil if there is no pending balancer
if gsb.balancerCurrent == nil {
gsb.balancerCurrent = bw
} else {
gsb.balancerPending = bw
}
gsb.mu.Unlock()
balToClose.Close()
// This function takes a builder instead of a balancer because builder.Build
// can call back inline, and this utility needs to handle the callbacks.
newBalancer := builder.Build(bw, gsb.bOpts)
if newBalancer == nil {
// This is illegal and should never happen; we clear the balancerWrapper
// we were constructing if it happens to avoid a potential panic.
gsb.mu.Lock()
if gsb.balancerPending != nil {
gsb.balancerPending = nil
} else {
gsb.balancerCurrent = nil
}
gsb.mu.Unlock()
return nil, balancer.ErrBadResolverState
}
// This write doesn't need to take gsb.mu because this field never gets read
// or written to on any calls from the current or pending. Calls from grpc
// to this balancer are guaranteed to be called synchronously, so this
// bw.Balancer field will never be forwarded to until this SwitchTo()
// function returns.
bw.Balancer = newBalancer
return bw, nil
}
// Returns nil if the graceful switch balancer is closed.
func (gsb *Balancer) latestBalancer() *balancerWrapper {
gsb.mu.Lock()
defer gsb.mu.Unlock()
if gsb.balancerPending != nil {
return gsb.balancerPending
}
return gsb.balancerCurrent
}
// UpdateClientConnState forwards the update to the latest balancer created.
//
// If the state's BalancerConfig is the config returned by a call to
// gracefulswitch.ParseConfig, then this function will automatically SwitchTo
// the balancer indicated by the config before forwarding its config to it, if
// necessary.
func (gsb *Balancer) UpdateClientConnState(state balancer.ClientConnState) error {
// The resolver data is only relevant to the most recent LB Policy.
balToUpdate := gsb.latestBalancer()
gsbCfg, ok := state.BalancerConfig.(*lbConfig)
if ok {
// Switch to the child in the config unless it is already active.
if balToUpdate == nil || gsbCfg.childBuilder.Name() != balToUpdate.builder.Name() {
var err error
balToUpdate, err = gsb.switchTo(gsbCfg.childBuilder)
if err != nil {
return fmt.Errorf("could not switch to new child balancer: %w", err)
}
}
// Unwrap the child balancer's config.
state.BalancerConfig = gsbCfg.childConfig
}
if balToUpdate == nil {
return errBalancerClosed
}
// Perform this call without gsb.mu to prevent deadlocks if the child calls
// back into the channel. The latest balancer can never be closed during a
// call from the channel, even without gsb.mu held.
return balToUpdate.UpdateClientConnState(state)
}
// ResolverError forwards the error to the latest balancer created.
func (gsb *Balancer) ResolverError(err error) {
// The resolver data is only relevant to the most recent LB Policy.
balToUpdate := gsb.latestBalancer()
if balToUpdate == nil {
gsb.cc.UpdateState(balancer.State{
ConnectivityState: connectivity.TransientFailure,
Picker: base.NewErrPicker(err),
})
return
}
// Perform this call without gsb.mu to prevent deadlocks if the child calls
// back into the channel. The latest balancer can never be closed during a
// call from the channel, even without gsb.mu held.
balToUpdate.ResolverError(err)
}
// ExitIdle forwards the call to the latest balancer created.
//
// If the latest balancer does not support ExitIdle, the subConns are
// re-connected to manually.
func (gsb *Balancer) ExitIdle() {
balToUpdate := gsb.latestBalancer()
if balToUpdate == nil {
return
}
// There is no need to protect this read with a mutex, as the write to the
// Balancer field happens in SwitchTo, which completes before this can be
// called.
if ei, ok := balToUpdate.Balancer.(balancer.ExitIdler); ok {
ei.ExitIdle()
return
}
gsb.mu.Lock()
defer gsb.mu.Unlock()
for sc := range balToUpdate.subconns {
sc.Connect()
}
}
// updateSubConnState forwards the update to the appropriate child.
func (gsb *Balancer) updateSubConnState(sc balancer.SubConn, state balancer.SubConnState, cb func(balancer.SubConnState)) {
gsb.currentMu.Lock()
defer gsb.currentMu.Unlock()
gsb.mu.Lock()
// Forward update to the appropriate child. Even if there is a pending
// balancer, the current balancer should continue to get SubConn updates to
// maintain the proper state while the pending is still connecting.
var balToUpdate *balancerWrapper
if gsb.balancerCurrent != nil && gsb.balancerCurrent.subconns[sc] {
balToUpdate = gsb.balancerCurrent
} else if gsb.balancerPending != nil && gsb.balancerPending.subconns[sc] {
balToUpdate = gsb.balancerPending
}
if balToUpdate == nil {
// SubConn belonged to a stale lb policy that has not yet fully closed,
// or the balancer was already closed.
gsb.mu.Unlock()
return
}
if state.ConnectivityState == connectivity.Shutdown {
delete(balToUpdate.subconns, sc)
}
gsb.mu.Unlock()
if cb != nil {
cb(state)
} else {
balToUpdate.UpdateSubConnState(sc, state)
}
}
// UpdateSubConnState forwards the update to the appropriate child.
func (gsb *Balancer) UpdateSubConnState(sc balancer.SubConn, state balancer.SubConnState) {
gsb.updateSubConnState(sc, state, nil)
}
// Close closes any active child balancers.
func (gsb *Balancer) Close() {
gsb.mu.Lock()
gsb.closed = true
currentBalancerToClose := gsb.balancerCurrent
gsb.balancerCurrent = nil
pendingBalancerToClose := gsb.balancerPending
gsb.balancerPending = nil
gsb.mu.Unlock()
currentBalancerToClose.Close()
pendingBalancerToClose.Close()
}
// balancerWrapper wraps a balancer.Balancer, and overrides some Balancer
// methods to help cleanup SubConns created by the wrapped balancer.
//
// It implements the balancer.ClientConn interface and is passed down in that
// capacity to the wrapped balancer. It maintains a set of subConns created by
// the wrapped balancer and calls from the latter to create/update/shutdown
// SubConns update this set before being forwarded to the parent ClientConn.
// State updates from the wrapped balancer can result in invocation of the
// graceful switch logic.
type balancerWrapper struct {
balancer.Balancer
gsb *Balancer
builder balancer.Builder
lastState balancer.State
subconns map[balancer.SubConn]bool // subconns created by this balancer
}
// Close closes the underlying LB policy and shuts down the subconns it
// created. bw must not be referenced via balancerCurrent or balancerPending in
// gsb when called. gsb.mu must not be held. Does not panic with a nil
// receiver.
func (bw *balancerWrapper) Close() {
// before Close is called.
if bw == nil {
return
}
// There is no need to protect this read with a mutex, as Close() is
// impossible to be called concurrently with the write in SwitchTo(). The
// callsites of Close() for this balancer in Graceful Switch Balancer will
// never be called until SwitchTo() returns.
bw.Balancer.Close()
bw.gsb.mu.Lock()
for sc := range bw.subconns {
sc.Shutdown()
}
bw.gsb.mu.Unlock()
}
func (bw *balancerWrapper) UpdateState(state balancer.State) {
// Hold the mutex for this entire call to ensure it cannot occur
// concurrently with other updateState() calls. This causes updates to
// lastState and calls to cc.UpdateState to happen atomically.
bw.gsb.mu.Lock()
defer bw.gsb.mu.Unlock()
bw.lastState = state
if !bw.gsb.balancerCurrentOrPending(bw) {
return
}
if bw == bw.gsb.balancerCurrent {
// In the case that the current balancer exits READY, and there is a pending
// balancer, you can forward the pending balancer's cached State up to
// ClientConn and swap the pending into the current. This is because there
// is no reason to gracefully switch from and keep using the old policy as
// the ClientConn is not connected to any backends.
if state.ConnectivityState != connectivity.Ready && bw.gsb.balancerPending != nil {
bw.gsb.swap()
return
}
// Even if there is a pending balancer waiting to be gracefully switched to,
// continue to forward current balancer updates to the Client Conn. Ignoring
// state + picker from the current would cause undefined behavior/cause the
// system to behave incorrectly from the current LB policies perspective.
// Also, the current LB is still being used by grpc to choose SubConns per
// RPC, and thus should use the most updated form of the current balancer.
bw.gsb.cc.UpdateState(state)
return
}
// This method is now dealing with a state update from the pending balancer.
// If the current balancer is currently in a state other than READY, the new
// policy can be swapped into place immediately. This is because there is no
// reason to gracefully switch from and keep using the old policy as the
// ClientConn is not connected to any backends.
if state.ConnectivityState != connectivity.Connecting || bw.gsb.balancerCurrent.lastState.ConnectivityState != connectivity.Ready {
bw.gsb.swap()
}
}
func (bw *balancerWrapper) NewSubConn(addrs []resolver.Address, opts balancer.NewSubConnOptions) (balancer.SubConn, error) {
bw.gsb.mu.Lock()
if !bw.gsb.balancerCurrentOrPending(bw) {
bw.gsb.mu.Unlock()
return nil, fmt.Errorf("%T at address %p that called NewSubConn is deleted", bw, bw)
}
bw.gsb.mu.Unlock()
var sc balancer.SubConn
oldListener := opts.StateListener
opts.StateListener = func(state balancer.SubConnState) { bw.gsb.updateSubConnState(sc, state, oldListener) }
sc, err := bw.gsb.cc.NewSubConn(addrs, opts)
if err != nil {
return nil, err
}
bw.gsb.mu.Lock()
if !bw.gsb.balancerCurrentOrPending(bw) { // balancer was closed during this call
sc.Shutdown()
bw.gsb.mu.Unlock()
return nil, fmt.Errorf("%T at address %p that called NewSubConn is deleted", bw, bw)
}
bw.subconns[sc] = true
bw.gsb.mu.Unlock()
return sc, nil
}
func (bw *balancerWrapper) ResolveNow(opts resolver.ResolveNowOptions) {
// Ignore ResolveNow requests from anything other than the most recent
// balancer, because older balancers were already removed from the config.
if bw != bw.gsb.latestBalancer() {
return
}
bw.gsb.cc.ResolveNow(opts)
}
func (bw *balancerWrapper) RemoveSubConn(sc balancer.SubConn) {
// Note: existing third party balancers may call this, so it must remain
// until RemoveSubConn is fully removed.
sc.Shutdown()
}
func (bw *balancerWrapper) UpdateAddresses(sc balancer.SubConn, addrs []resolver.Address) {
bw.gsb.mu.Lock()
if !bw.gsb.balancerCurrentOrPending(bw) {
bw.gsb.mu.Unlock()
return
}
bw.gsb.mu.Unlock()
bw.gsb.cc.UpdateAddresses(sc, addrs)
}
func (bw *balancerWrapper) Target() string {
return bw.gsb.cc.Target()
}

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/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// Package balancerload defines APIs to parse server loads in trailers. The
// parsed loads are sent to balancers in DoneInfo.
package balancerload
import (
"google.golang.org/grpc/metadata"
)
// Parser converts loads from metadata into a concrete type.
type Parser interface {
// Parse parses loads from metadata.
Parse(md metadata.MD) any
}
var parser Parser
// SetParser sets the load parser.
//
// Not mutex-protected, should be called before any gRPC functions.
func SetParser(lr Parser) {
parser = lr
}
// Parse calls parser.Read().
func Parse(md metadata.MD) any {
if parser == nil {
return nil
}
return parser.Parse(md)
}

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e2e/vendor/google.golang.org/grpc/internal/binarylog/binarylog.go generated vendored Normal file
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/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package binarylog implementation binary logging as defined in
// https://github.com/grpc/proposal/blob/master/A16-binary-logging.md.
package binarylog
import (
"fmt"
"os"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal/grpcutil"
)
var grpclogLogger = grpclog.Component("binarylog")
// Logger specifies MethodLoggers for method names with a Log call that
// takes a context.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
type Logger interface {
GetMethodLogger(methodName string) MethodLogger
}
// binLogger is the global binary logger for the binary. One of this should be
// built at init time from the configuration (environment variable or flags).
//
// It is used to get a MethodLogger for each individual method.
var binLogger Logger
// SetLogger sets the binary logger.
//
// Only call this at init time.
func SetLogger(l Logger) {
binLogger = l
}
// GetLogger gets the binary logger.
//
// Only call this at init time.
func GetLogger() Logger {
return binLogger
}
// GetMethodLogger returns the MethodLogger for the given methodName.
//
// methodName should be in the format of "/service/method".
//
// Each MethodLogger returned by this method is a new instance. This is to
// generate sequence id within the call.
func GetMethodLogger(methodName string) MethodLogger {
if binLogger == nil {
return nil
}
return binLogger.GetMethodLogger(methodName)
}
func init() {
const envStr = "GRPC_BINARY_LOG_FILTER"
configStr := os.Getenv(envStr)
binLogger = NewLoggerFromConfigString(configStr)
}
// MethodLoggerConfig contains the setting for logging behavior of a method
// logger. Currently, it contains the max length of header and message.
type MethodLoggerConfig struct {
// Max length of header and message.
Header, Message uint64
}
// LoggerConfig contains the config for loggers to create method loggers.
type LoggerConfig struct {
All *MethodLoggerConfig
Services map[string]*MethodLoggerConfig
Methods map[string]*MethodLoggerConfig
Blacklist map[string]struct{}
}
type logger struct {
config LoggerConfig
}
// NewLoggerFromConfig builds a logger with the given LoggerConfig.
func NewLoggerFromConfig(config LoggerConfig) Logger {
return &logger{config: config}
}
// newEmptyLogger creates an empty logger. The map fields need to be filled in
// using the set* functions.
func newEmptyLogger() *logger {
return &logger{}
}
// Set method logger for "*".
func (l *logger) setDefaultMethodLogger(ml *MethodLoggerConfig) error {
if l.config.All != nil {
return fmt.Errorf("conflicting global rules found")
}
l.config.All = ml
return nil
}
// Set method logger for "service/*".
//
// New MethodLogger with same service overrides the old one.
func (l *logger) setServiceMethodLogger(service string, ml *MethodLoggerConfig) error {
if _, ok := l.config.Services[service]; ok {
return fmt.Errorf("conflicting service rules for service %v found", service)
}
if l.config.Services == nil {
l.config.Services = make(map[string]*MethodLoggerConfig)
}
l.config.Services[service] = ml
return nil
}
// Set method logger for "service/method".
//
// New MethodLogger with same method overrides the old one.
func (l *logger) setMethodMethodLogger(method string, ml *MethodLoggerConfig) error {
if _, ok := l.config.Blacklist[method]; ok {
return fmt.Errorf("conflicting blacklist rules for method %v found", method)
}
if _, ok := l.config.Methods[method]; ok {
return fmt.Errorf("conflicting method rules for method %v found", method)
}
if l.config.Methods == nil {
l.config.Methods = make(map[string]*MethodLoggerConfig)
}
l.config.Methods[method] = ml
return nil
}
// Set blacklist method for "-service/method".
func (l *logger) setBlacklist(method string) error {
if _, ok := l.config.Blacklist[method]; ok {
return fmt.Errorf("conflicting blacklist rules for method %v found", method)
}
if _, ok := l.config.Methods[method]; ok {
return fmt.Errorf("conflicting method rules for method %v found", method)
}
if l.config.Blacklist == nil {
l.config.Blacklist = make(map[string]struct{})
}
l.config.Blacklist[method] = struct{}{}
return nil
}
// getMethodLogger returns the MethodLogger for the given methodName.
//
// methodName should be in the format of "/service/method".
//
// Each MethodLogger returned by this method is a new instance. This is to
// generate sequence id within the call.
func (l *logger) GetMethodLogger(methodName string) MethodLogger {
s, m, err := grpcutil.ParseMethod(methodName)
if err != nil {
grpclogLogger.Infof("binarylogging: failed to parse %q: %v", methodName, err)
return nil
}
if ml, ok := l.config.Methods[s+"/"+m]; ok {
return NewTruncatingMethodLogger(ml.Header, ml.Message)
}
if _, ok := l.config.Blacklist[s+"/"+m]; ok {
return nil
}
if ml, ok := l.config.Services[s]; ok {
return NewTruncatingMethodLogger(ml.Header, ml.Message)
}
if l.config.All == nil {
return nil
}
return NewTruncatingMethodLogger(l.config.All.Header, l.config.All.Message)
}

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e2e/vendor/google.golang.org/grpc/internal/binarylog/binarylog_testutil.go generated vendored Normal file
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/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// This file contains exported variables/functions that are exported for testing
// only.
//
// An ideal way for this would be to put those in a *_test.go but in binarylog
// package. But this doesn't work with staticcheck with go module. Error was:
// "MdToMetadataProto not declared by package binarylog". This could be caused
// by the way staticcheck looks for files for a certain package, which doesn't
// support *_test.go files.
//
// Move those to binary_test.go when staticcheck is fixed.
package binarylog
var (
// AllLogger is a logger that logs all headers/messages for all RPCs. It's
// for testing only.
AllLogger = NewLoggerFromConfigString("*")
// MdToMetadataProto converts metadata to a binary logging proto message.
// It's for testing only.
MdToMetadataProto = mdToMetadataProto
// AddrToProto converts an address to a binary logging proto message. It's
// for testing only.
AddrToProto = addrToProto
)

208
e2e/vendor/google.golang.org/grpc/internal/binarylog/env_config.go generated vendored Normal file
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/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package binarylog
import (
"errors"
"fmt"
"regexp"
"strconv"
"strings"
)
// NewLoggerFromConfigString reads the string and build a logger. It can be used
// to build a new logger and assign it to binarylog.Logger.
//
// Example filter config strings:
// - "" Nothing will be logged
// - "*" All headers and messages will be fully logged.
// - "*{h}" Only headers will be logged.
// - "*{m:256}" Only the first 256 bytes of each message will be logged.
// - "Foo/*" Logs every method in service Foo
// - "Foo/*,-Foo/Bar" Logs every method in service Foo except method /Foo/Bar
// - "Foo/*,Foo/Bar{m:256}" Logs the first 256 bytes of each message in method
// /Foo/Bar, logs all headers and messages in every other method in service
// Foo.
//
// If two configs exist for one certain method or service, the one specified
// later overrides the previous config.
func NewLoggerFromConfigString(s string) Logger {
if s == "" {
return nil
}
l := newEmptyLogger()
methods := strings.Split(s, ",")
for _, method := range methods {
if err := l.fillMethodLoggerWithConfigString(method); err != nil {
grpclogLogger.Warningf("failed to parse binary log config: %v", err)
return nil
}
}
return l
}
// fillMethodLoggerWithConfigString parses config, creates TruncatingMethodLogger and adds
// it to the right map in the logger.
func (l *logger) fillMethodLoggerWithConfigString(config string) error {
// "" is invalid.
if config == "" {
return errors.New("empty string is not a valid method binary logging config")
}
// "-service/method", blacklist, no * or {} allowed.
if config[0] == '-' {
s, m, suffix, err := parseMethodConfigAndSuffix(config[1:])
if err != nil {
return fmt.Errorf("invalid config: %q, %v", config, err)
}
if m == "*" {
return fmt.Errorf("invalid config: %q, %v", config, "* not allowed in blacklist config")
}
if suffix != "" {
return fmt.Errorf("invalid config: %q, %v", config, "header/message limit not allowed in blacklist config")
}
if err := l.setBlacklist(s + "/" + m); err != nil {
return fmt.Errorf("invalid config: %v", err)
}
return nil
}
// "*{h:256;m:256}"
if config[0] == '*' {
hdr, msg, err := parseHeaderMessageLengthConfig(config[1:])
if err != nil {
return fmt.Errorf("invalid config: %q, %v", config, err)
}
if err := l.setDefaultMethodLogger(&MethodLoggerConfig{Header: hdr, Message: msg}); err != nil {
return fmt.Errorf("invalid config: %v", err)
}
return nil
}
s, m, suffix, err := parseMethodConfigAndSuffix(config)
if err != nil {
return fmt.Errorf("invalid config: %q, %v", config, err)
}
hdr, msg, err := parseHeaderMessageLengthConfig(suffix)
if err != nil {
return fmt.Errorf("invalid header/message length config: %q, %v", suffix, err)
}
if m == "*" {
if err := l.setServiceMethodLogger(s, &MethodLoggerConfig{Header: hdr, Message: msg}); err != nil {
return fmt.Errorf("invalid config: %v", err)
}
} else {
if err := l.setMethodMethodLogger(s+"/"+m, &MethodLoggerConfig{Header: hdr, Message: msg}); err != nil {
return fmt.Errorf("invalid config: %v", err)
}
}
return nil
}
const (
// TODO: this const is only used by env_config now. But could be useful for
// other config. Move to binarylog.go if necessary.
maxUInt = ^uint64(0)
// For "p.s/m" plus any suffix. Suffix will be parsed again. See test for
// expected output.
longMethodConfigRegexpStr = `^([\w./]+)/((?:\w+)|[*])(.+)?$`
// For suffix from above, "{h:123,m:123}". See test for expected output.
optionalLengthRegexpStr = `(?::(\d+))?` // Optional ":123".
headerConfigRegexpStr = `^{h` + optionalLengthRegexpStr + `}$`
messageConfigRegexpStr = `^{m` + optionalLengthRegexpStr + `}$`
headerMessageConfigRegexpStr = `^{h` + optionalLengthRegexpStr + `;m` + optionalLengthRegexpStr + `}$`
)
var (
longMethodConfigRegexp = regexp.MustCompile(longMethodConfigRegexpStr)
headerConfigRegexp = regexp.MustCompile(headerConfigRegexpStr)
messageConfigRegexp = regexp.MustCompile(messageConfigRegexpStr)
headerMessageConfigRegexp = regexp.MustCompile(headerMessageConfigRegexpStr)
)
// Turn "service/method{h;m}" into "service", "method", "{h;m}".
func parseMethodConfigAndSuffix(c string) (service, method, suffix string, _ error) {
// Regexp result:
//
// in: "p.s/m{h:123,m:123}",
// out: []string{"p.s/m{h:123,m:123}", "p.s", "m", "{h:123,m:123}"},
match := longMethodConfigRegexp.FindStringSubmatch(c)
if match == nil {
return "", "", "", fmt.Errorf("%q contains invalid substring", c)
}
service = match[1]
method = match[2]
suffix = match[3]
return
}
// Turn "{h:123;m:345}" into 123, 345.
//
// Return maxUInt if length is unspecified.
func parseHeaderMessageLengthConfig(c string) (hdrLenStr, msgLenStr uint64, err error) {
if c == "" {
return maxUInt, maxUInt, nil
}
// Header config only.
if match := headerConfigRegexp.FindStringSubmatch(c); match != nil {
if s := match[1]; s != "" {
hdrLenStr, err = strconv.ParseUint(s, 10, 64)
if err != nil {
return 0, 0, fmt.Errorf("failed to convert %q to uint", s)
}
return hdrLenStr, 0, nil
}
return maxUInt, 0, nil
}
// Message config only.
if match := messageConfigRegexp.FindStringSubmatch(c); match != nil {
if s := match[1]; s != "" {
msgLenStr, err = strconv.ParseUint(s, 10, 64)
if err != nil {
return 0, 0, fmt.Errorf("failed to convert %q to uint", s)
}
return 0, msgLenStr, nil
}
return 0, maxUInt, nil
}
// Header and message config both.
if match := headerMessageConfigRegexp.FindStringSubmatch(c); match != nil {
// Both hdr and msg are specified, but one or two of them might be empty.
hdrLenStr = maxUInt
msgLenStr = maxUInt
if s := match[1]; s != "" {
hdrLenStr, err = strconv.ParseUint(s, 10, 64)
if err != nil {
return 0, 0, fmt.Errorf("failed to convert %q to uint", s)
}
}
if s := match[2]; s != "" {
msgLenStr, err = strconv.ParseUint(s, 10, 64)
if err != nil {
return 0, 0, fmt.Errorf("failed to convert %q to uint", s)
}
}
return hdrLenStr, msgLenStr, nil
}
return 0, 0, fmt.Errorf("%q contains invalid substring", c)
}

446
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/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package binarylog
import (
"context"
"net"
"strings"
"sync/atomic"
"time"
binlogpb "google.golang.org/grpc/binarylog/grpc_binarylog_v1"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/types/known/durationpb"
"google.golang.org/protobuf/types/known/timestamppb"
)
type callIDGenerator struct {
id uint64
}
func (g *callIDGenerator) next() uint64 {
id := atomic.AddUint64(&g.id, 1)
return id
}
// reset is for testing only, and doesn't need to be thread safe.
func (g *callIDGenerator) reset() {
g.id = 0
}
var idGen callIDGenerator
// MethodLogger is the sub-logger for each method.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
type MethodLogger interface {
Log(context.Context, LogEntryConfig)
}
// TruncatingMethodLogger is a method logger that truncates headers and messages
// based on configured fields.
type TruncatingMethodLogger struct {
headerMaxLen, messageMaxLen uint64
callID uint64
idWithinCallGen *callIDGenerator
sink Sink // TODO(blog): make this pluggable.
}
// NewTruncatingMethodLogger returns a new truncating method logger.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
func NewTruncatingMethodLogger(h, m uint64) *TruncatingMethodLogger {
return &TruncatingMethodLogger{
headerMaxLen: h,
messageMaxLen: m,
callID: idGen.next(),
idWithinCallGen: &callIDGenerator{},
sink: DefaultSink, // TODO(blog): make it pluggable.
}
}
// Build is an internal only method for building the proto message out of the
// input event. It's made public to enable other library to reuse as much logic
// in TruncatingMethodLogger as possible.
func (ml *TruncatingMethodLogger) Build(c LogEntryConfig) *binlogpb.GrpcLogEntry {
m := c.toProto()
timestamp := timestamppb.Now()
m.Timestamp = timestamp
m.CallId = ml.callID
m.SequenceIdWithinCall = ml.idWithinCallGen.next()
switch pay := m.Payload.(type) {
case *binlogpb.GrpcLogEntry_ClientHeader:
m.PayloadTruncated = ml.truncateMetadata(pay.ClientHeader.GetMetadata())
case *binlogpb.GrpcLogEntry_ServerHeader:
m.PayloadTruncated = ml.truncateMetadata(pay.ServerHeader.GetMetadata())
case *binlogpb.GrpcLogEntry_Message:
m.PayloadTruncated = ml.truncateMessage(pay.Message)
}
return m
}
// Log creates a proto binary log entry, and logs it to the sink.
func (ml *TruncatingMethodLogger) Log(_ context.Context, c LogEntryConfig) {
ml.sink.Write(ml.Build(c))
}
func (ml *TruncatingMethodLogger) truncateMetadata(mdPb *binlogpb.Metadata) (truncated bool) {
if ml.headerMaxLen == maxUInt {
return false
}
var (
bytesLimit = ml.headerMaxLen
index int
)
// At the end of the loop, index will be the first entry where the total
// size is greater than the limit:
//
// len(entry[:index]) <= ml.hdr && len(entry[:index+1]) > ml.hdr.
for ; index < len(mdPb.Entry); index++ {
entry := mdPb.Entry[index]
if entry.Key == "grpc-trace-bin" {
// "grpc-trace-bin" is a special key. It's kept in the log entry,
// but not counted towards the size limit.
continue
}
currentEntryLen := uint64(len(entry.GetKey())) + uint64(len(entry.GetValue()))
if currentEntryLen > bytesLimit {
break
}
bytesLimit -= currentEntryLen
}
truncated = index < len(mdPb.Entry)
mdPb.Entry = mdPb.Entry[:index]
return truncated
}
func (ml *TruncatingMethodLogger) truncateMessage(msgPb *binlogpb.Message) (truncated bool) {
if ml.messageMaxLen == maxUInt {
return false
}
if ml.messageMaxLen >= uint64(len(msgPb.Data)) {
return false
}
msgPb.Data = msgPb.Data[:ml.messageMaxLen]
return true
}
// LogEntryConfig represents the configuration for binary log entry.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
type LogEntryConfig interface {
toProto() *binlogpb.GrpcLogEntry
}
// ClientHeader configs the binary log entry to be a ClientHeader entry.
type ClientHeader struct {
OnClientSide bool
Header metadata.MD
MethodName string
Authority string
Timeout time.Duration
// PeerAddr is required only when it's on server side.
PeerAddr net.Addr
}
func (c *ClientHeader) toProto() *binlogpb.GrpcLogEntry {
// This function doesn't need to set all the fields (e.g. seq ID). The Log
// function will set the fields when necessary.
clientHeader := &binlogpb.ClientHeader{
Metadata: mdToMetadataProto(c.Header),
MethodName: c.MethodName,
Authority: c.Authority,
}
if c.Timeout > 0 {
clientHeader.Timeout = durationpb.New(c.Timeout)
}
ret := &binlogpb.GrpcLogEntry{
Type: binlogpb.GrpcLogEntry_EVENT_TYPE_CLIENT_HEADER,
Payload: &binlogpb.GrpcLogEntry_ClientHeader{
ClientHeader: clientHeader,
},
}
if c.OnClientSide {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
} else {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
}
if c.PeerAddr != nil {
ret.Peer = addrToProto(c.PeerAddr)
}
return ret
}
// ServerHeader configs the binary log entry to be a ServerHeader entry.
type ServerHeader struct {
OnClientSide bool
Header metadata.MD
// PeerAddr is required only when it's on client side.
PeerAddr net.Addr
}
func (c *ServerHeader) toProto() *binlogpb.GrpcLogEntry {
ret := &binlogpb.GrpcLogEntry{
Type: binlogpb.GrpcLogEntry_EVENT_TYPE_SERVER_HEADER,
Payload: &binlogpb.GrpcLogEntry_ServerHeader{
ServerHeader: &binlogpb.ServerHeader{
Metadata: mdToMetadataProto(c.Header),
},
},
}
if c.OnClientSide {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
} else {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
}
if c.PeerAddr != nil {
ret.Peer = addrToProto(c.PeerAddr)
}
return ret
}
// ClientMessage configs the binary log entry to be a ClientMessage entry.
type ClientMessage struct {
OnClientSide bool
// Message can be a proto.Message or []byte. Other messages formats are not
// supported.
Message any
}
func (c *ClientMessage) toProto() *binlogpb.GrpcLogEntry {
var (
data []byte
err error
)
if m, ok := c.Message.(proto.Message); ok {
data, err = proto.Marshal(m)
if err != nil {
grpclogLogger.Infof("binarylogging: failed to marshal proto message: %v", err)
}
} else if b, ok := c.Message.([]byte); ok {
data = b
} else {
grpclogLogger.Infof("binarylogging: message to log is neither proto.message nor []byte")
}
ret := &binlogpb.GrpcLogEntry{
Type: binlogpb.GrpcLogEntry_EVENT_TYPE_CLIENT_MESSAGE,
Payload: &binlogpb.GrpcLogEntry_Message{
Message: &binlogpb.Message{
Length: uint32(len(data)),
Data: data,
},
},
}
if c.OnClientSide {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
} else {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
}
return ret
}
// ServerMessage configs the binary log entry to be a ServerMessage entry.
type ServerMessage struct {
OnClientSide bool
// Message can be a proto.Message or []byte. Other messages formats are not
// supported.
Message any
}
func (c *ServerMessage) toProto() *binlogpb.GrpcLogEntry {
var (
data []byte
err error
)
if m, ok := c.Message.(proto.Message); ok {
data, err = proto.Marshal(m)
if err != nil {
grpclogLogger.Infof("binarylogging: failed to marshal proto message: %v", err)
}
} else if b, ok := c.Message.([]byte); ok {
data = b
} else {
grpclogLogger.Infof("binarylogging: message to log is neither proto.message nor []byte")
}
ret := &binlogpb.GrpcLogEntry{
Type: binlogpb.GrpcLogEntry_EVENT_TYPE_SERVER_MESSAGE,
Payload: &binlogpb.GrpcLogEntry_Message{
Message: &binlogpb.Message{
Length: uint32(len(data)),
Data: data,
},
},
}
if c.OnClientSide {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
} else {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
}
return ret
}
// ClientHalfClose configs the binary log entry to be a ClientHalfClose entry.
type ClientHalfClose struct {
OnClientSide bool
}
func (c *ClientHalfClose) toProto() *binlogpb.GrpcLogEntry {
ret := &binlogpb.GrpcLogEntry{
Type: binlogpb.GrpcLogEntry_EVENT_TYPE_CLIENT_HALF_CLOSE,
Payload: nil, // No payload here.
}
if c.OnClientSide {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
} else {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
}
return ret
}
// ServerTrailer configs the binary log entry to be a ServerTrailer entry.
type ServerTrailer struct {
OnClientSide bool
Trailer metadata.MD
// Err is the status error.
Err error
// PeerAddr is required only when it's on client side and the RPC is trailer
// only.
PeerAddr net.Addr
}
func (c *ServerTrailer) toProto() *binlogpb.GrpcLogEntry {
st, ok := status.FromError(c.Err)
if !ok {
grpclogLogger.Info("binarylogging: error in trailer is not a status error")
}
var (
detailsBytes []byte
err error
)
stProto := st.Proto()
if stProto != nil && len(stProto.Details) != 0 {
detailsBytes, err = proto.Marshal(stProto)
if err != nil {
grpclogLogger.Infof("binarylogging: failed to marshal status proto: %v", err)
}
}
ret := &binlogpb.GrpcLogEntry{
Type: binlogpb.GrpcLogEntry_EVENT_TYPE_SERVER_TRAILER,
Payload: &binlogpb.GrpcLogEntry_Trailer{
Trailer: &binlogpb.Trailer{
Metadata: mdToMetadataProto(c.Trailer),
StatusCode: uint32(st.Code()),
StatusMessage: st.Message(),
StatusDetails: detailsBytes,
},
},
}
if c.OnClientSide {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
} else {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
}
if c.PeerAddr != nil {
ret.Peer = addrToProto(c.PeerAddr)
}
return ret
}
// Cancel configs the binary log entry to be a Cancel entry.
type Cancel struct {
OnClientSide bool
}
func (c *Cancel) toProto() *binlogpb.GrpcLogEntry {
ret := &binlogpb.GrpcLogEntry{
Type: binlogpb.GrpcLogEntry_EVENT_TYPE_CANCEL,
Payload: nil,
}
if c.OnClientSide {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
} else {
ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
}
return ret
}
// metadataKeyOmit returns whether the metadata entry with this key should be
// omitted.
func metadataKeyOmit(key string) bool {
switch key {
case "lb-token", ":path", ":authority", "content-encoding", "content-type", "user-agent", "te":
return true
case "grpc-trace-bin": // grpc-trace-bin is special because it's visible to users.
return false
}
return strings.HasPrefix(key, "grpc-")
}
func mdToMetadataProto(md metadata.MD) *binlogpb.Metadata {
ret := &binlogpb.Metadata{}
for k, vv := range md {
if metadataKeyOmit(k) {
continue
}
for _, v := range vv {
ret.Entry = append(ret.Entry,
&binlogpb.MetadataEntry{
Key: k,
Value: []byte(v),
},
)
}
}
return ret
}
func addrToProto(addr net.Addr) *binlogpb.Address {
ret := &binlogpb.Address{}
switch a := addr.(type) {
case *net.TCPAddr:
if a.IP.To4() != nil {
ret.Type = binlogpb.Address_TYPE_IPV4
} else if a.IP.To16() != nil {
ret.Type = binlogpb.Address_TYPE_IPV6
} else {
ret.Type = binlogpb.Address_TYPE_UNKNOWN
// Do not set address and port fields.
break
}
ret.Address = a.IP.String()
ret.IpPort = uint32(a.Port)
case *net.UnixAddr:
ret.Type = binlogpb.Address_TYPE_UNIX
ret.Address = a.String()
default:
ret.Type = binlogpb.Address_TYPE_UNKNOWN
}
return ret
}

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/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package binarylog
import (
"bufio"
"encoding/binary"
"io"
"sync"
"time"
binlogpb "google.golang.org/grpc/binarylog/grpc_binarylog_v1"
"google.golang.org/protobuf/proto"
)
var (
// DefaultSink is the sink where the logs will be written to. It's exported
// for the binarylog package to update.
DefaultSink Sink = &noopSink{} // TODO(blog): change this default (file in /tmp).
)
// Sink writes log entry into the binary log sink.
//
// sink is a copy of the exported binarylog.Sink, to avoid circular dependency.
type Sink interface {
// Write will be called to write the log entry into the sink.
//
// It should be thread-safe so it can be called in parallel.
Write(*binlogpb.GrpcLogEntry) error
// Close will be called when the Sink is replaced by a new Sink.
Close() error
}
type noopSink struct{}
func (ns *noopSink) Write(*binlogpb.GrpcLogEntry) error { return nil }
func (ns *noopSink) Close() error { return nil }
// newWriterSink creates a binary log sink with the given writer.
//
// Write() marshals the proto message and writes it to the given writer. Each
// message is prefixed with a 4 byte big endian unsigned integer as the length.
//
// No buffer is done, Close() doesn't try to close the writer.
func newWriterSink(w io.Writer) Sink {
return &writerSink{out: w}
}
type writerSink struct {
out io.Writer
}
func (ws *writerSink) Write(e *binlogpb.GrpcLogEntry) error {
b, err := proto.Marshal(e)
if err != nil {
grpclogLogger.Errorf("binary logging: failed to marshal proto message: %v", err)
return err
}
hdr := make([]byte, 4)
binary.BigEndian.PutUint32(hdr, uint32(len(b)))
if _, err := ws.out.Write(hdr); err != nil {
return err
}
if _, err := ws.out.Write(b); err != nil {
return err
}
return nil
}
func (ws *writerSink) Close() error { return nil }
type bufferedSink struct {
mu sync.Mutex
closer io.Closer
out Sink // out is built on buf.
buf *bufio.Writer // buf is kept for flush.
flusherStarted bool
writeTicker *time.Ticker
done chan struct{}
}
func (fs *bufferedSink) Write(e *binlogpb.GrpcLogEntry) error {
fs.mu.Lock()
defer fs.mu.Unlock()
if !fs.flusherStarted {
// Start the write loop when Write is called.
fs.startFlushGoroutine()
fs.flusherStarted = true
}
if err := fs.out.Write(e); err != nil {
return err
}
return nil
}
const (
bufFlushDuration = 60 * time.Second
)
func (fs *bufferedSink) startFlushGoroutine() {
fs.writeTicker = time.NewTicker(bufFlushDuration)
go func() {
for {
select {
case <-fs.done:
return
case <-fs.writeTicker.C:
}
fs.mu.Lock()
if err := fs.buf.Flush(); err != nil {
grpclogLogger.Warningf("failed to flush to Sink: %v", err)
}
fs.mu.Unlock()
}
}()
}
func (fs *bufferedSink) Close() error {
fs.mu.Lock()
defer fs.mu.Unlock()
if fs.writeTicker != nil {
fs.writeTicker.Stop()
}
close(fs.done)
if err := fs.buf.Flush(); err != nil {
grpclogLogger.Warningf("failed to flush to Sink: %v", err)
}
if err := fs.closer.Close(); err != nil {
grpclogLogger.Warningf("failed to close the underlying WriterCloser: %v", err)
}
if err := fs.out.Close(); err != nil {
grpclogLogger.Warningf("failed to close the Sink: %v", err)
}
return nil
}
// NewBufferedSink creates a binary log sink with the given WriteCloser.
//
// Write() marshals the proto message and writes it to the given writer. Each
// message is prefixed with a 4 byte big endian unsigned integer as the length.
//
// Content is kept in a buffer, and is flushed every 60 seconds.
//
// Close closes the WriteCloser.
func NewBufferedSink(o io.WriteCloser) Sink {
bufW := bufio.NewWriter(o)
return &bufferedSink{
closer: o,
out: newWriterSink(bufW),
buf: bufW,
done: make(chan struct{}),
}
}

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/*
* Copyright 2019 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package buffer provides an implementation of an unbounded buffer.
package buffer
import (
"errors"
"sync"
)
// Unbounded is an implementation of an unbounded buffer which does not use
// extra goroutines. This is typically used for passing updates from one entity
// to another within gRPC.
//
// All methods on this type are thread-safe and don't block on anything except
// the underlying mutex used for synchronization.
//
// Unbounded supports values of any type to be stored in it by using a channel
// of `any`. This means that a call to Put() incurs an extra memory allocation,
// and also that users need a type assertion while reading. For performance
// critical code paths, using Unbounded is strongly discouraged and defining a
// new type specific implementation of this buffer is preferred. See
// internal/transport/transport.go for an example of this.
type Unbounded struct {
c chan any
closed bool
closing bool
mu sync.Mutex
backlog []any
}
// NewUnbounded returns a new instance of Unbounded.
func NewUnbounded() *Unbounded {
return &Unbounded{c: make(chan any, 1)}
}
var errBufferClosed = errors.New("Put called on closed buffer.Unbounded")
// Put adds t to the unbounded buffer.
func (b *Unbounded) Put(t any) error {
b.mu.Lock()
defer b.mu.Unlock()
if b.closing {
return errBufferClosed
}
if len(b.backlog) == 0 {
select {
case b.c <- t:
return nil
default:
}
}
b.backlog = append(b.backlog, t)
return nil
}
// Load sends the earliest buffered data, if any, onto the read channel returned
// by Get(). Users are expected to call this every time they successfully read a
// value from the read channel.
func (b *Unbounded) Load() {
b.mu.Lock()
defer b.mu.Unlock()
if len(b.backlog) > 0 {
select {
case b.c <- b.backlog[0]:
b.backlog[0] = nil
b.backlog = b.backlog[1:]
default:
}
} else if b.closing && !b.closed {
close(b.c)
}
}
// Get returns a read channel on which values added to the buffer, via Put(),
// are sent on.
//
// Upon reading a value from this channel, users are expected to call Load() to
// send the next buffered value onto the channel if there is any.
//
// If the unbounded buffer is closed, the read channel returned by this method
// is closed after all data is drained.
func (b *Unbounded) Get() <-chan any {
return b.c
}
// Close closes the unbounded buffer. No subsequent data may be Put(), and the
// channel returned from Get() will be closed after all the data is read and
// Load() is called for the final time.
func (b *Unbounded) Close() {
b.mu.Lock()
defer b.mu.Unlock()
if b.closing {
return
}
b.closing = true
if len(b.backlog) == 0 {
b.closed = true
close(b.c)
}
}

270
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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package channelz
import (
"fmt"
"sync/atomic"
"google.golang.org/grpc/connectivity"
)
// Channel represents a channel within channelz, which includes metrics and
// internal channelz data, such as channelz id, child list, etc.
type Channel struct {
Entity
// ID is the channelz id of this channel.
ID int64
// RefName is the human readable reference string of this channel.
RefName string
closeCalled bool
nestedChans map[int64]string
subChans map[int64]string
Parent *Channel
trace *ChannelTrace
// traceRefCount is the number of trace events that reference this channel.
// Non-zero traceRefCount means the trace of this channel cannot be deleted.
traceRefCount int32
// ChannelMetrics holds connectivity state, target and call metrics for the
// channel within channelz.
ChannelMetrics ChannelMetrics
}
// Implemented to make Channel implement the Identifier interface used for
// nesting.
func (c *Channel) channelzIdentifier() {}
// String returns a string representation of the Channel, including its parent
// entity and ID.
func (c *Channel) String() string {
if c.Parent == nil {
return fmt.Sprintf("Channel #%d", c.ID)
}
return fmt.Sprintf("%s Channel #%d", c.Parent, c.ID)
}
func (c *Channel) id() int64 {
return c.ID
}
// SubChans returns a copy of the map of sub-channels associated with the
// Channel.
func (c *Channel) SubChans() map[int64]string {
db.mu.RLock()
defer db.mu.RUnlock()
return copyMap(c.subChans)
}
// NestedChans returns a copy of the map of nested channels associated with the
// Channel.
func (c *Channel) NestedChans() map[int64]string {
db.mu.RLock()
defer db.mu.RUnlock()
return copyMap(c.nestedChans)
}
// Trace returns a copy of the Channel's trace data.
func (c *Channel) Trace() *ChannelTrace {
db.mu.RLock()
defer db.mu.RUnlock()
return c.trace.copy()
}
// ChannelMetrics holds connectivity state, target and call metrics for the
// channel within channelz.
type ChannelMetrics struct {
// The current connectivity state of the channel.
State atomic.Pointer[connectivity.State]
// The target this channel originally tried to connect to. May be absent
Target atomic.Pointer[string]
// The number of calls started on the channel.
CallsStarted atomic.Int64
// The number of calls that have completed with an OK status.
CallsSucceeded atomic.Int64
// The number of calls that have a completed with a non-OK status.
CallsFailed atomic.Int64
// The last time a call was started on the channel.
LastCallStartedTimestamp atomic.Int64
}
// CopyFrom copies the metrics in o to c. For testing only.
func (c *ChannelMetrics) CopyFrom(o *ChannelMetrics) {
c.State.Store(o.State.Load())
c.Target.Store(o.Target.Load())
c.CallsStarted.Store(o.CallsStarted.Load())
c.CallsSucceeded.Store(o.CallsSucceeded.Load())
c.CallsFailed.Store(o.CallsFailed.Load())
c.LastCallStartedTimestamp.Store(o.LastCallStartedTimestamp.Load())
}
// Equal returns true iff the metrics of c are the same as the metrics of o.
// For testing only.
func (c *ChannelMetrics) Equal(o any) bool {
oc, ok := o.(*ChannelMetrics)
if !ok {
return false
}
if (c.State.Load() == nil) != (oc.State.Load() == nil) {
return false
}
if c.State.Load() != nil && *c.State.Load() != *oc.State.Load() {
return false
}
if (c.Target.Load() == nil) != (oc.Target.Load() == nil) {
return false
}
if c.Target.Load() != nil && *c.Target.Load() != *oc.Target.Load() {
return false
}
return c.CallsStarted.Load() == oc.CallsStarted.Load() &&
c.CallsFailed.Load() == oc.CallsFailed.Load() &&
c.CallsSucceeded.Load() == oc.CallsSucceeded.Load() &&
c.LastCallStartedTimestamp.Load() == oc.LastCallStartedTimestamp.Load()
}
func strFromPointer(s *string) string {
if s == nil {
return ""
}
return *s
}
// String returns a string representation of the ChannelMetrics, including its
// state, target, and call metrics.
func (c *ChannelMetrics) String() string {
return fmt.Sprintf("State: %v, Target: %s, CallsStarted: %v, CallsSucceeded: %v, CallsFailed: %v, LastCallStartedTimestamp: %v",
c.State.Load(), strFromPointer(c.Target.Load()), c.CallsStarted.Load(), c.CallsSucceeded.Load(), c.CallsFailed.Load(), c.LastCallStartedTimestamp.Load(),
)
}
// NewChannelMetricForTesting creates a new instance of ChannelMetrics with
// specified initial values for testing purposes.
func NewChannelMetricForTesting(state connectivity.State, target string, started, succeeded, failed, timestamp int64) *ChannelMetrics {
c := &ChannelMetrics{}
c.State.Store(&state)
c.Target.Store(&target)
c.CallsStarted.Store(started)
c.CallsSucceeded.Store(succeeded)
c.CallsFailed.Store(failed)
c.LastCallStartedTimestamp.Store(timestamp)
return c
}
func (c *Channel) addChild(id int64, e entry) {
switch v := e.(type) {
case *SubChannel:
c.subChans[id] = v.RefName
case *Channel:
c.nestedChans[id] = v.RefName
default:
logger.Errorf("cannot add a child (id = %d) of type %T to a channel", id, e)
}
}
func (c *Channel) deleteChild(id int64) {
delete(c.subChans, id)
delete(c.nestedChans, id)
c.deleteSelfIfReady()
}
func (c *Channel) triggerDelete() {
c.closeCalled = true
c.deleteSelfIfReady()
}
func (c *Channel) getParentID() int64 {
if c.Parent == nil {
return -1
}
return c.Parent.ID
}
// deleteSelfFromTree tries to delete the channel from the channelz entry relation tree, which means
// deleting the channel reference from its parent's child list.
//
// In order for a channel to be deleted from the tree, it must meet the criteria that, removal of the
// corresponding grpc object has been invoked, and the channel does not have any children left.
//
// The returned boolean value indicates whether the channel has been successfully deleted from tree.
func (c *Channel) deleteSelfFromTree() (deleted bool) {
if !c.closeCalled || len(c.subChans)+len(c.nestedChans) != 0 {
return false
}
// not top channel
if c.Parent != nil {
c.Parent.deleteChild(c.ID)
}
return true
}
// deleteSelfFromMap checks whether it is valid to delete the channel from the map, which means
// deleting the channel from channelz's tracking entirely. Users can no longer use id to query the
// channel, and its memory will be garbage collected.
//
// The trace reference count of the channel must be 0 in order to be deleted from the map. This is
// specified in the channel tracing gRFC that as long as some other trace has reference to an entity,
// the trace of the referenced entity must not be deleted. In order to release the resource allocated
// by grpc, the reference to the grpc object is reset to a dummy object.
//
// deleteSelfFromMap must be called after deleteSelfFromTree returns true.
//
// It returns a bool to indicate whether the channel can be safely deleted from map.
func (c *Channel) deleteSelfFromMap() (delete bool) {
return c.getTraceRefCount() == 0
}
// deleteSelfIfReady tries to delete the channel itself from the channelz database.
// The delete process includes two steps:
// 1. delete the channel from the entry relation tree, i.e. delete the channel reference from its
// parent's child list.
// 2. delete the channel from the map, i.e. delete the channel entirely from channelz. Lookup by id
// will return entry not found error.
func (c *Channel) deleteSelfIfReady() {
if !c.deleteSelfFromTree() {
return
}
if !c.deleteSelfFromMap() {
return
}
db.deleteEntry(c.ID)
c.trace.clear()
}
func (c *Channel) getChannelTrace() *ChannelTrace {
return c.trace
}
func (c *Channel) incrTraceRefCount() {
atomic.AddInt32(&c.traceRefCount, 1)
}
func (c *Channel) decrTraceRefCount() {
atomic.AddInt32(&c.traceRefCount, -1)
}
func (c *Channel) getTraceRefCount() int {
i := atomic.LoadInt32(&c.traceRefCount)
return int(i)
}
func (c *Channel) getRefName() string {
return c.RefName
}

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/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package channelz
import (
"fmt"
"sort"
"sync"
"time"
)
// entry represents a node in the channelz database.
type entry interface {
// addChild adds a child e, whose channelz id is id to child list
addChild(id int64, e entry)
// deleteChild deletes a child with channelz id to be id from child list
deleteChild(id int64)
// triggerDelete tries to delete self from channelz database. However, if
// child list is not empty, then deletion from the database is on hold until
// the last child is deleted from database.
triggerDelete()
// deleteSelfIfReady check whether triggerDelete() has been called before,
// and whether child list is now empty. If both conditions are met, then
// delete self from database.
deleteSelfIfReady()
// getParentID returns parent ID of the entry. 0 value parent ID means no parent.
getParentID() int64
Entity
}
// channelMap is the storage data structure for channelz.
//
// Methods of channelMap can be divided into two categories with respect to
// locking.
//
// 1. Methods acquire the global lock.
// 2. Methods that can only be called when global lock is held.
//
// A second type of method need always to be called inside a first type of method.
type channelMap struct {
mu sync.RWMutex
topLevelChannels map[int64]struct{}
channels map[int64]*Channel
subChannels map[int64]*SubChannel
sockets map[int64]*Socket
servers map[int64]*Server
}
func newChannelMap() *channelMap {
return &channelMap{
topLevelChannels: make(map[int64]struct{}),
channels: make(map[int64]*Channel),
subChannels: make(map[int64]*SubChannel),
sockets: make(map[int64]*Socket),
servers: make(map[int64]*Server),
}
}
func (c *channelMap) addServer(id int64, s *Server) {
c.mu.Lock()
defer c.mu.Unlock()
s.cm = c
c.servers[id] = s
}
func (c *channelMap) addChannel(id int64, cn *Channel, isTopChannel bool, pid int64) {
c.mu.Lock()
defer c.mu.Unlock()
cn.trace.cm = c
c.channels[id] = cn
if isTopChannel {
c.topLevelChannels[id] = struct{}{}
} else if p := c.channels[pid]; p != nil {
p.addChild(id, cn)
} else {
logger.Infof("channel %d references invalid parent ID %d", id, pid)
}
}
func (c *channelMap) addSubChannel(id int64, sc *SubChannel, pid int64) {
c.mu.Lock()
defer c.mu.Unlock()
sc.trace.cm = c
c.subChannels[id] = sc
if p := c.channels[pid]; p != nil {
p.addChild(id, sc)
} else {
logger.Infof("subchannel %d references invalid parent ID %d", id, pid)
}
}
func (c *channelMap) addSocket(s *Socket) {
c.mu.Lock()
defer c.mu.Unlock()
s.cm = c
c.sockets[s.ID] = s
if s.Parent == nil {
logger.Infof("normal socket %d has no parent", s.ID)
}
s.Parent.(entry).addChild(s.ID, s)
}
// removeEntry triggers the removal of an entry, which may not indeed delete the
// entry, if it has to wait on the deletion of its children and until no other
// entity's channel trace references it. It may lead to a chain of entry
// deletion. For example, deleting the last socket of a gracefully shutting down
// server will lead to the server being also deleted.
func (c *channelMap) removeEntry(id int64) {
c.mu.Lock()
defer c.mu.Unlock()
c.findEntry(id).triggerDelete()
}
// tracedChannel represents tracing operations which are present on both
// channels and subChannels.
type tracedChannel interface {
getChannelTrace() *ChannelTrace
incrTraceRefCount()
decrTraceRefCount()
getRefName() string
}
// c.mu must be held by the caller
func (c *channelMap) decrTraceRefCount(id int64) {
e := c.findEntry(id)
if v, ok := e.(tracedChannel); ok {
v.decrTraceRefCount()
e.deleteSelfIfReady()
}
}
// c.mu must be held by the caller.
func (c *channelMap) findEntry(id int64) entry {
if v, ok := c.channels[id]; ok {
return v
}
if v, ok := c.subChannels[id]; ok {
return v
}
if v, ok := c.servers[id]; ok {
return v
}
if v, ok := c.sockets[id]; ok {
return v
}
return &dummyEntry{idNotFound: id}
}
// c.mu must be held by the caller
//
// deleteEntry deletes an entry from the channelMap. Before calling this method,
// caller must check this entry is ready to be deleted, i.e removeEntry() has
// been called on it, and no children still exist.
func (c *channelMap) deleteEntry(id int64) entry {
if v, ok := c.sockets[id]; ok {
delete(c.sockets, id)
return v
}
if v, ok := c.subChannels[id]; ok {
delete(c.subChannels, id)
return v
}
if v, ok := c.channels[id]; ok {
delete(c.channels, id)
delete(c.topLevelChannels, id)
return v
}
if v, ok := c.servers[id]; ok {
delete(c.servers, id)
return v
}
return &dummyEntry{idNotFound: id}
}
func (c *channelMap) traceEvent(id int64, desc *TraceEvent) {
c.mu.Lock()
defer c.mu.Unlock()
child := c.findEntry(id)
childTC, ok := child.(tracedChannel)
if !ok {
return
}
childTC.getChannelTrace().append(&traceEvent{Desc: desc.Desc, Severity: desc.Severity, Timestamp: time.Now()})
if desc.Parent != nil {
parent := c.findEntry(child.getParentID())
var chanType RefChannelType
switch child.(type) {
case *Channel:
chanType = RefChannel
case *SubChannel:
chanType = RefSubChannel
}
if parentTC, ok := parent.(tracedChannel); ok {
parentTC.getChannelTrace().append(&traceEvent{
Desc: desc.Parent.Desc,
Severity: desc.Parent.Severity,
Timestamp: time.Now(),
RefID: id,
RefName: childTC.getRefName(),
RefType: chanType,
})
childTC.incrTraceRefCount()
}
}
}
type int64Slice []int64
func (s int64Slice) Len() int { return len(s) }
func (s int64Slice) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
func (s int64Slice) Less(i, j int) bool { return s[i] < s[j] }
func copyMap(m map[int64]string) map[int64]string {
n := make(map[int64]string)
for k, v := range m {
n[k] = v
}
return n
}
func (c *channelMap) getTopChannels(id int64, maxResults int) ([]*Channel, bool) {
if maxResults <= 0 {
maxResults = EntriesPerPage
}
c.mu.RLock()
defer c.mu.RUnlock()
l := int64(len(c.topLevelChannels))
ids := make([]int64, 0, l)
for k := range c.topLevelChannels {
ids = append(ids, k)
}
sort.Sort(int64Slice(ids))
idx := sort.Search(len(ids), func(i int) bool { return ids[i] >= id })
end := true
var t []*Channel
for _, v := range ids[idx:] {
if len(t) == maxResults {
end = false
break
}
if cn, ok := c.channels[v]; ok {
t = append(t, cn)
}
}
return t, end
}
func (c *channelMap) getServers(id int64, maxResults int) ([]*Server, bool) {
if maxResults <= 0 {
maxResults = EntriesPerPage
}
c.mu.RLock()
defer c.mu.RUnlock()
ids := make([]int64, 0, len(c.servers))
for k := range c.servers {
ids = append(ids, k)
}
sort.Sort(int64Slice(ids))
idx := sort.Search(len(ids), func(i int) bool { return ids[i] >= id })
end := true
var s []*Server
for _, v := range ids[idx:] {
if len(s) == maxResults {
end = false
break
}
if svr, ok := c.servers[v]; ok {
s = append(s, svr)
}
}
return s, end
}
func (c *channelMap) getServerSockets(id int64, startID int64, maxResults int) ([]*Socket, bool) {
if maxResults <= 0 {
maxResults = EntriesPerPage
}
c.mu.RLock()
defer c.mu.RUnlock()
svr, ok := c.servers[id]
if !ok {
// server with id doesn't exist.
return nil, true
}
svrskts := svr.sockets
ids := make([]int64, 0, len(svrskts))
sks := make([]*Socket, 0, min(len(svrskts), maxResults))
for k := range svrskts {
ids = append(ids, k)
}
sort.Sort(int64Slice(ids))
idx := sort.Search(len(ids), func(i int) bool { return ids[i] >= startID })
end := true
for _, v := range ids[idx:] {
if len(sks) == maxResults {
end = false
break
}
if ns, ok := c.sockets[v]; ok {
sks = append(sks, ns)
}
}
return sks, end
}
func (c *channelMap) getChannel(id int64) *Channel {
c.mu.RLock()
defer c.mu.RUnlock()
return c.channels[id]
}
func (c *channelMap) getSubChannel(id int64) *SubChannel {
c.mu.RLock()
defer c.mu.RUnlock()
return c.subChannels[id]
}
func (c *channelMap) getSocket(id int64) *Socket {
c.mu.RLock()
defer c.mu.RUnlock()
return c.sockets[id]
}
func (c *channelMap) getServer(id int64) *Server {
c.mu.RLock()
defer c.mu.RUnlock()
return c.servers[id]
}
type dummyEntry struct {
// dummyEntry is a fake entry to handle entry not found case.
idNotFound int64
Entity
}
func (d *dummyEntry) String() string {
return fmt.Sprintf("non-existent entity #%d", d.idNotFound)
}
func (d *dummyEntry) ID() int64 { return d.idNotFound }
func (d *dummyEntry) addChild(id int64, e entry) {
// Note: It is possible for a normal program to reach here under race
// condition. For example, there could be a race between ClientConn.Close()
// info being propagated to addrConn and http2Client. ClientConn.Close()
// cancel the context and result in http2Client to error. The error info is
// then caught by transport monitor and before addrConn.tearDown() is called
// in side ClientConn.Close(). Therefore, the addrConn will create a new
// transport. And when registering the new transport in channelz, its parent
// addrConn could have already been torn down and deleted from channelz
// tracking, and thus reach the code here.
logger.Infof("attempt to add child of type %T with id %d to a parent (id=%d) that doesn't currently exist", e, id, d.idNotFound)
}
func (d *dummyEntry) deleteChild(id int64) {
// It is possible for a normal program to reach here under race condition.
// Refer to the example described in addChild().
logger.Infof("attempt to delete child with id %d from a parent (id=%d) that doesn't currently exist", id, d.idNotFound)
}
func (d *dummyEntry) triggerDelete() {
logger.Warningf("attempt to delete an entry (id=%d) that doesn't currently exist", d.idNotFound)
}
func (*dummyEntry) deleteSelfIfReady() {
// code should not reach here. deleteSelfIfReady is always called on an existing entry.
}
func (*dummyEntry) getParentID() int64 {
return 0
}
// Entity is implemented by all channelz types.
type Entity interface {
isEntity()
fmt.Stringer
id() int64
}

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/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package channelz defines internal APIs for enabling channelz service, entry
// registration/deletion, and accessing channelz data. It also defines channelz
// metric struct formats.
package channelz
import (
"sync/atomic"
"time"
"google.golang.org/grpc/internal"
)
var (
// IDGen is the global channelz entity ID generator. It should not be used
// outside this package except by tests.
IDGen IDGenerator
db = newChannelMap()
// EntriesPerPage defines the number of channelz entries to be shown on a web page.
EntriesPerPage = 50
curState int32
)
// TurnOn turns on channelz data collection.
func TurnOn() {
atomic.StoreInt32(&curState, 1)
}
func init() {
internal.ChannelzTurnOffForTesting = func() {
atomic.StoreInt32(&curState, 0)
}
}
// IsOn returns whether channelz data collection is on.
func IsOn() bool {
return atomic.LoadInt32(&curState) == 1
}
// GetTopChannels returns a slice of top channel's ChannelMetric, along with a
// boolean indicating whether there's more top channels to be queried for.
//
// The arg id specifies that only top channel with id at or above it will be
// included in the result. The returned slice is up to a length of the arg
// maxResults or EntriesPerPage if maxResults is zero, and is sorted in ascending
// id order.
func GetTopChannels(id int64, maxResults int) ([]*Channel, bool) {
return db.getTopChannels(id, maxResults)
}
// GetServers returns a slice of server's ServerMetric, along with a
// boolean indicating whether there's more servers to be queried for.
//
// The arg id specifies that only server with id at or above it will be included
// in the result. The returned slice is up to a length of the arg maxResults or
// EntriesPerPage if maxResults is zero, and is sorted in ascending id order.
func GetServers(id int64, maxResults int) ([]*Server, bool) {
return db.getServers(id, maxResults)
}
// GetServerSockets returns a slice of server's (identified by id) normal socket's
// SocketMetrics, along with a boolean indicating whether there's more sockets to
// be queried for.
//
// The arg startID specifies that only sockets with id at or above it will be
// included in the result. The returned slice is up to a length of the arg maxResults
// or EntriesPerPage if maxResults is zero, and is sorted in ascending id order.
func GetServerSockets(id int64, startID int64, maxResults int) ([]*Socket, bool) {
return db.getServerSockets(id, startID, maxResults)
}
// GetChannel returns the Channel for the channel (identified by id).
func GetChannel(id int64) *Channel {
return db.getChannel(id)
}
// GetSubChannel returns the SubChannel for the subchannel (identified by id).
func GetSubChannel(id int64) *SubChannel {
return db.getSubChannel(id)
}
// GetSocket returns the Socket for the socket (identified by id).
func GetSocket(id int64) *Socket {
return db.getSocket(id)
}
// GetServer returns the ServerMetric for the server (identified by id).
func GetServer(id int64) *Server {
return db.getServer(id)
}
// RegisterChannel registers the given channel c in the channelz database with
// target as its target and reference name, and adds it to the child list of its
// parent. parent == nil means no parent.
//
// Returns a unique channelz identifier assigned to this channel.
//
// If channelz is not turned ON, the channelz database is not mutated.
func RegisterChannel(parent *Channel, target string) *Channel {
id := IDGen.genID()
if !IsOn() {
return &Channel{ID: id}
}
isTopChannel := parent == nil
cn := &Channel{
ID: id,
RefName: target,
nestedChans: make(map[int64]string),
subChans: make(map[int64]string),
Parent: parent,
trace: &ChannelTrace{CreationTime: time.Now(), Events: make([]*traceEvent, 0, getMaxTraceEntry())},
}
cn.ChannelMetrics.Target.Store(&target)
db.addChannel(id, cn, isTopChannel, cn.getParentID())
return cn
}
// RegisterSubChannel registers the given subChannel c in the channelz database
// with ref as its reference name, and adds it to the child list of its parent
// (identified by pid).
//
// Returns a unique channelz identifier assigned to this subChannel.
//
// If channelz is not turned ON, the channelz database is not mutated.
func RegisterSubChannel(parent *Channel, ref string) *SubChannel {
id := IDGen.genID()
sc := &SubChannel{
ID: id,
RefName: ref,
parent: parent,
}
if !IsOn() {
return sc
}
sc.sockets = make(map[int64]string)
sc.trace = &ChannelTrace{CreationTime: time.Now(), Events: make([]*traceEvent, 0, getMaxTraceEntry())}
db.addSubChannel(id, sc, parent.ID)
return sc
}
// RegisterServer registers the given server s in channelz database. It returns
// the unique channelz tracking id assigned to this server.
//
// If channelz is not turned ON, the channelz database is not mutated.
func RegisterServer(ref string) *Server {
id := IDGen.genID()
if !IsOn() {
return &Server{ID: id}
}
svr := &Server{
RefName: ref,
sockets: make(map[int64]string),
listenSockets: make(map[int64]string),
ID: id,
}
db.addServer(id, svr)
return svr
}
// RegisterSocket registers the given normal socket s in channelz database
// with ref as its reference name, and adds it to the child list of its parent
// (identified by skt.Parent, which must be set). It returns the unique channelz
// tracking id assigned to this normal socket.
//
// If channelz is not turned ON, the channelz database is not mutated.
func RegisterSocket(skt *Socket) *Socket {
skt.ID = IDGen.genID()
if IsOn() {
db.addSocket(skt)
}
return skt
}
// RemoveEntry removes an entry with unique channelz tracking id to be id from
// channelz database.
//
// If channelz is not turned ON, this function is a no-op.
func RemoveEntry(id int64) {
if !IsOn() {
return
}
db.removeEntry(id)
}
// IDGenerator is an incrementing atomic that tracks IDs for channelz entities.
type IDGenerator struct {
id int64
}
// Reset resets the generated ID back to zero. Should only be used at
// initialization or by tests sensitive to the ID number.
func (i *IDGenerator) Reset() {
atomic.StoreInt64(&i.id, 0)
}
func (i *IDGenerator) genID() int64 {
return atomic.AddInt64(&i.id, 1)
}
// Identifier is an opaque channelz identifier used to expose channelz symbols
// outside of grpc. Currently only implemented by Channel since no other
// types require exposure outside grpc.
type Identifier interface {
Entity
channelzIdentifier()
}

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/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package channelz
import (
"fmt"
"google.golang.org/grpc/grpclog"
)
var logger = grpclog.Component("channelz")
// Info logs and adds a trace event if channelz is on.
func Info(l grpclog.DepthLoggerV2, e Entity, args ...any) {
AddTraceEvent(l, e, 1, &TraceEvent{
Desc: fmt.Sprint(args...),
Severity: CtInfo,
})
}
// Infof logs and adds a trace event if channelz is on.
func Infof(l grpclog.DepthLoggerV2, e Entity, format string, args ...any) {
AddTraceEvent(l, e, 1, &TraceEvent{
Desc: fmt.Sprintf(format, args...),
Severity: CtInfo,
})
}
// Warning logs and adds a trace event if channelz is on.
func Warning(l grpclog.DepthLoggerV2, e Entity, args ...any) {
AddTraceEvent(l, e, 1, &TraceEvent{
Desc: fmt.Sprint(args...),
Severity: CtWarning,
})
}
// Warningf logs and adds a trace event if channelz is on.
func Warningf(l grpclog.DepthLoggerV2, e Entity, format string, args ...any) {
AddTraceEvent(l, e, 1, &TraceEvent{
Desc: fmt.Sprintf(format, args...),
Severity: CtWarning,
})
}
// Error logs and adds a trace event if channelz is on.
func Error(l grpclog.DepthLoggerV2, e Entity, args ...any) {
AddTraceEvent(l, e, 1, &TraceEvent{
Desc: fmt.Sprint(args...),
Severity: CtError,
})
}
// Errorf logs and adds a trace event if channelz is on.
func Errorf(l grpclog.DepthLoggerV2, e Entity, format string, args ...any) {
AddTraceEvent(l, e, 1, &TraceEvent{
Desc: fmt.Sprintf(format, args...),
Severity: CtError,
})
}

121
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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package channelz
import (
"fmt"
"sync/atomic"
)
// Server is the channelz representation of a server.
type Server struct {
Entity
ID int64
RefName string
ServerMetrics ServerMetrics
closeCalled bool
sockets map[int64]string
listenSockets map[int64]string
cm *channelMap
}
// ServerMetrics defines a struct containing metrics for servers.
type ServerMetrics struct {
// The number of incoming calls started on the server.
CallsStarted atomic.Int64
// The number of incoming calls that have completed with an OK status.
CallsSucceeded atomic.Int64
// The number of incoming calls that have a completed with a non-OK status.
CallsFailed atomic.Int64
// The last time a call was started on the server.
LastCallStartedTimestamp atomic.Int64
}
// NewServerMetricsForTesting returns an initialized ServerMetrics.
func NewServerMetricsForTesting(started, succeeded, failed, timestamp int64) *ServerMetrics {
sm := &ServerMetrics{}
sm.CallsStarted.Store(started)
sm.CallsSucceeded.Store(succeeded)
sm.CallsFailed.Store(failed)
sm.LastCallStartedTimestamp.Store(timestamp)
return sm
}
// CopyFrom copies the metrics data from the provided ServerMetrics
// instance into the current instance.
func (sm *ServerMetrics) CopyFrom(o *ServerMetrics) {
sm.CallsStarted.Store(o.CallsStarted.Load())
sm.CallsSucceeded.Store(o.CallsSucceeded.Load())
sm.CallsFailed.Store(o.CallsFailed.Load())
sm.LastCallStartedTimestamp.Store(o.LastCallStartedTimestamp.Load())
}
// ListenSockets returns the listening sockets for s.
func (s *Server) ListenSockets() map[int64]string {
db.mu.RLock()
defer db.mu.RUnlock()
return copyMap(s.listenSockets)
}
// String returns a printable description of s.
func (s *Server) String() string {
return fmt.Sprintf("Server #%d", s.ID)
}
func (s *Server) id() int64 {
return s.ID
}
func (s *Server) addChild(id int64, e entry) {
switch v := e.(type) {
case *Socket:
switch v.SocketType {
case SocketTypeNormal:
s.sockets[id] = v.RefName
case SocketTypeListen:
s.listenSockets[id] = v.RefName
}
default:
logger.Errorf("cannot add a child (id = %d) of type %T to a server", id, e)
}
}
func (s *Server) deleteChild(id int64) {
delete(s.sockets, id)
delete(s.listenSockets, id)
s.deleteSelfIfReady()
}
func (s *Server) triggerDelete() {
s.closeCalled = true
s.deleteSelfIfReady()
}
func (s *Server) deleteSelfIfReady() {
if !s.closeCalled || len(s.sockets)+len(s.listenSockets) != 0 {
return
}
s.cm.deleteEntry(s.ID)
}
func (s *Server) getParentID() int64 {
return 0
}

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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package channelz
import (
"fmt"
"net"
"sync/atomic"
"google.golang.org/grpc/credentials"
)
// SocketMetrics defines the struct that the implementor of Socket interface
// should return from ChannelzMetric().
type SocketMetrics struct {
// The number of streams that have been started.
StreamsStarted atomic.Int64
// The number of streams that have ended successfully:
// On client side, receiving frame with eos bit set.
// On server side, sending frame with eos bit set.
StreamsSucceeded atomic.Int64
// The number of streams that have ended unsuccessfully:
// On client side, termination without receiving frame with eos bit set.
// On server side, termination without sending frame with eos bit set.
StreamsFailed atomic.Int64
// The number of messages successfully sent on this socket.
MessagesSent atomic.Int64
MessagesReceived atomic.Int64
// The number of keep alives sent. This is typically implemented with HTTP/2
// ping messages.
KeepAlivesSent atomic.Int64
// The last time a stream was created by this endpoint. Usually unset for
// servers.
LastLocalStreamCreatedTimestamp atomic.Int64
// The last time a stream was created by the remote endpoint. Usually unset
// for clients.
LastRemoteStreamCreatedTimestamp atomic.Int64
// The last time a message was sent by this endpoint.
LastMessageSentTimestamp atomic.Int64
// The last time a message was received by this endpoint.
LastMessageReceivedTimestamp atomic.Int64
}
// EphemeralSocketMetrics are metrics that change rapidly and are tracked
// outside of channelz.
type EphemeralSocketMetrics struct {
// The amount of window, granted to the local endpoint by the remote endpoint.
// This may be slightly out of date due to network latency. This does NOT
// include stream level or TCP level flow control info.
LocalFlowControlWindow int64
// The amount of window, granted to the remote endpoint by the local endpoint.
// This may be slightly out of date due to network latency. This does NOT
// include stream level or TCP level flow control info.
RemoteFlowControlWindow int64
}
// SocketType represents the type of socket.
type SocketType string
// SocketType can be one of these.
const (
SocketTypeNormal = "NormalSocket"
SocketTypeListen = "ListenSocket"
)
// Socket represents a socket within channelz which includes socket
// metrics and data related to socket activity and provides methods
// for managing and interacting with sockets.
type Socket struct {
Entity
SocketType SocketType
ID int64
Parent Entity
cm *channelMap
SocketMetrics SocketMetrics
EphemeralMetrics func() *EphemeralSocketMetrics
RefName string
// The locally bound address. Immutable.
LocalAddr net.Addr
// The remote bound address. May be absent. Immutable.
RemoteAddr net.Addr
// Optional, represents the name of the remote endpoint, if different than
// the original target name. Immutable.
RemoteName string
// Immutable.
SocketOptions *SocketOptionData
// Immutable.
Security credentials.ChannelzSecurityValue
}
// String returns a string representation of the Socket, including its parent
// entity, socket type, and ID.
func (ls *Socket) String() string {
return fmt.Sprintf("%s %s #%d", ls.Parent, ls.SocketType, ls.ID)
}
func (ls *Socket) id() int64 {
return ls.ID
}
func (ls *Socket) addChild(id int64, e entry) {
logger.Errorf("cannot add a child (id = %d) of type %T to a listen socket", id, e)
}
func (ls *Socket) deleteChild(id int64) {
logger.Errorf("cannot delete a child (id = %d) from a listen socket", id)
}
func (ls *Socket) triggerDelete() {
ls.cm.deleteEntry(ls.ID)
ls.Parent.(entry).deleteChild(ls.ID)
}
func (ls *Socket) deleteSelfIfReady() {
logger.Errorf("cannot call deleteSelfIfReady on a listen socket")
}
func (ls *Socket) getParentID() int64 {
return ls.Parent.id()
}

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/*
*
* Copyright 2024 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package channelz
import (
"fmt"
"sync/atomic"
)
// SubChannel is the channelz representation of a subchannel.
type SubChannel struct {
Entity
// ID is the channelz id of this subchannel.
ID int64
// RefName is the human readable reference string of this subchannel.
RefName string
closeCalled bool
sockets map[int64]string
parent *Channel
trace *ChannelTrace
traceRefCount int32
ChannelMetrics ChannelMetrics
}
func (sc *SubChannel) String() string {
return fmt.Sprintf("%s SubChannel #%d", sc.parent, sc.ID)
}
func (sc *SubChannel) id() int64 {
return sc.ID
}
// Sockets returns a copy of the sockets map associated with the SubChannel.
func (sc *SubChannel) Sockets() map[int64]string {
db.mu.RLock()
defer db.mu.RUnlock()
return copyMap(sc.sockets)
}
// Trace returns a copy of the ChannelTrace associated with the SubChannel.
func (sc *SubChannel) Trace() *ChannelTrace {
db.mu.RLock()
defer db.mu.RUnlock()
return sc.trace.copy()
}
func (sc *SubChannel) addChild(id int64, e entry) {
if v, ok := e.(*Socket); ok && v.SocketType == SocketTypeNormal {
sc.sockets[id] = v.RefName
} else {
logger.Errorf("cannot add a child (id = %d) of type %T to a subChannel", id, e)
}
}
func (sc *SubChannel) deleteChild(id int64) {
delete(sc.sockets, id)
sc.deleteSelfIfReady()
}
func (sc *SubChannel) triggerDelete() {
sc.closeCalled = true
sc.deleteSelfIfReady()
}
func (sc *SubChannel) getParentID() int64 {
return sc.parent.ID
}
// deleteSelfFromTree tries to delete the subchannel from the channelz entry relation tree, which
// means deleting the subchannel reference from its parent's child list.
//
// In order for a subchannel to be deleted from the tree, it must meet the criteria that, removal of
// the corresponding grpc object has been invoked, and the subchannel does not have any children left.
//
// The returned boolean value indicates whether the channel has been successfully deleted from tree.
func (sc *SubChannel) deleteSelfFromTree() (deleted bool) {
if !sc.closeCalled || len(sc.sockets) != 0 {
return false
}
sc.parent.deleteChild(sc.ID)
return true
}
// deleteSelfFromMap checks whether it is valid to delete the subchannel from the map, which means
// deleting the subchannel from channelz's tracking entirely. Users can no longer use id to query
// the subchannel, and its memory will be garbage collected.
//
// The trace reference count of the subchannel must be 0 in order to be deleted from the map. This is
// specified in the channel tracing gRFC that as long as some other trace has reference to an entity,
// the trace of the referenced entity must not be deleted. In order to release the resource allocated
// by grpc, the reference to the grpc object is reset to a dummy object.
//
// deleteSelfFromMap must be called after deleteSelfFromTree returns true.
//
// It returns a bool to indicate whether the channel can be safely deleted from map.
func (sc *SubChannel) deleteSelfFromMap() (delete bool) {
return sc.getTraceRefCount() == 0
}
// deleteSelfIfReady tries to delete the subchannel itself from the channelz database.
// The delete process includes two steps:
// 1. delete the subchannel from the entry relation tree, i.e. delete the subchannel reference from
// its parent's child list.
// 2. delete the subchannel from the map, i.e. delete the subchannel entirely from channelz. Lookup
// by id will return entry not found error.
func (sc *SubChannel) deleteSelfIfReady() {
if !sc.deleteSelfFromTree() {
return
}
if !sc.deleteSelfFromMap() {
return
}
db.deleteEntry(sc.ID)
sc.trace.clear()
}
func (sc *SubChannel) getChannelTrace() *ChannelTrace {
return sc.trace
}
func (sc *SubChannel) incrTraceRefCount() {
atomic.AddInt32(&sc.traceRefCount, 1)
}
func (sc *SubChannel) decrTraceRefCount() {
atomic.AddInt32(&sc.traceRefCount, -1)
}
func (sc *SubChannel) getTraceRefCount() int {
i := atomic.LoadInt32(&sc.traceRefCount)
return int(i)
}
func (sc *SubChannel) getRefName() string {
return sc.RefName
}

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/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package channelz
import (
"syscall"
"golang.org/x/sys/unix"
)
// SocketOptionData defines the struct to hold socket option data, and related
// getter function to obtain info from fd.
type SocketOptionData struct {
Linger *unix.Linger
RecvTimeout *unix.Timeval
SendTimeout *unix.Timeval
TCPInfo *unix.TCPInfo
}
// Getsockopt defines the function to get socket options requested by channelz.
// It is to be passed to syscall.RawConn.Control().
func (s *SocketOptionData) Getsockopt(fd uintptr) {
if v, err := unix.GetsockoptLinger(int(fd), syscall.SOL_SOCKET, syscall.SO_LINGER); err == nil {
s.Linger = v
}
if v, err := unix.GetsockoptTimeval(int(fd), syscall.SOL_SOCKET, syscall.SO_RCVTIMEO); err == nil {
s.RecvTimeout = v
}
if v, err := unix.GetsockoptTimeval(int(fd), syscall.SOL_SOCKET, syscall.SO_SNDTIMEO); err == nil {
s.SendTimeout = v
}
if v, err := unix.GetsockoptTCPInfo(int(fd), syscall.SOL_TCP, syscall.TCP_INFO); err == nil {
s.TCPInfo = v
}
}
// GetSocketOption gets the socket option info of the conn.
func GetSocketOption(socket any) *SocketOptionData {
c, ok := socket.(syscall.Conn)
if !ok {
return nil
}
data := &SocketOptionData{}
if rawConn, err := c.SyscallConn(); err == nil {
rawConn.Control(data.Getsockopt)
return data
}
return nil
}

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//go:build !linux
/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package channelz
import (
"sync"
)
var once sync.Once
// SocketOptionData defines the struct to hold socket option data, and related
// getter function to obtain info from fd.
// Windows OS doesn't support Socket Option
type SocketOptionData struct {
}
// Getsockopt defines the function to get socket options requested by channelz.
// It is to be passed to syscall.RawConn.Control().
// Windows OS doesn't support Socket Option
func (s *SocketOptionData) Getsockopt(uintptr) {
once.Do(func() {
logger.Warning("Channelz: socket options are not supported on non-linux environments")
})
}
// GetSocketOption gets the socket option info of the conn.
func GetSocketOption(any) *SocketOptionData {
return nil
}

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/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package channelz
import (
"fmt"
"sync"
"sync/atomic"
"time"
"google.golang.org/grpc/grpclog"
)
const (
defaultMaxTraceEntry int32 = 30
)
var maxTraceEntry = defaultMaxTraceEntry
// SetMaxTraceEntry sets maximum number of trace entries per entity (i.e.
// channel/subchannel). Setting it to 0 will disable channel tracing.
func SetMaxTraceEntry(i int32) {
atomic.StoreInt32(&maxTraceEntry, i)
}
// ResetMaxTraceEntryToDefault resets the maximum number of trace entries per
// entity to default.
func ResetMaxTraceEntryToDefault() {
atomic.StoreInt32(&maxTraceEntry, defaultMaxTraceEntry)
}
func getMaxTraceEntry() int {
i := atomic.LoadInt32(&maxTraceEntry)
return int(i)
}
// traceEvent is an internal representation of a single trace event
type traceEvent struct {
// Desc is a simple description of the trace event.
Desc string
// Severity states the severity of this trace event.
Severity Severity
// Timestamp is the event time.
Timestamp time.Time
// RefID is the id of the entity that gets referenced in the event. RefID is 0 if no other entity is
// involved in this event.
// e.g. SubChannel (id: 4[]) Created. --> RefID = 4, RefName = "" (inside [])
RefID int64
// RefName is the reference name for the entity that gets referenced in the event.
RefName string
// RefType indicates the referenced entity type, i.e Channel or SubChannel.
RefType RefChannelType
}
// TraceEvent is what the caller of AddTraceEvent should provide to describe the
// event to be added to the channel trace.
//
// The Parent field is optional. It is used for an event that will be recorded
// in the entity's parent trace.
type TraceEvent struct {
Desc string
Severity Severity
Parent *TraceEvent
}
// ChannelTrace provides tracing information for a channel.
// It tracks various events and metadata related to the channel's lifecycle
// and operations.
type ChannelTrace struct {
cm *channelMap
clearCalled bool
// The time when the trace was created.
CreationTime time.Time
// A counter for the number of events recorded in the
// trace.
EventNum int64
mu sync.Mutex
// A slice of traceEvent pointers representing the events recorded for
// this channel.
Events []*traceEvent
}
func (c *ChannelTrace) copy() *ChannelTrace {
return &ChannelTrace{
CreationTime: c.CreationTime,
EventNum: c.EventNum,
Events: append(([]*traceEvent)(nil), c.Events...),
}
}
func (c *ChannelTrace) append(e *traceEvent) {
c.mu.Lock()
if len(c.Events) == getMaxTraceEntry() {
del := c.Events[0]
c.Events = c.Events[1:]
if del.RefID != 0 {
// start recursive cleanup in a goroutine to not block the call originated from grpc.
go func() {
// need to acquire c.cm.mu lock to call the unlocked attemptCleanup func.
c.cm.mu.Lock()
c.cm.decrTraceRefCount(del.RefID)
c.cm.mu.Unlock()
}()
}
}
e.Timestamp = time.Now()
c.Events = append(c.Events, e)
c.EventNum++
c.mu.Unlock()
}
func (c *ChannelTrace) clear() {
if c.clearCalled {
return
}
c.clearCalled = true
c.mu.Lock()
for _, e := range c.Events {
if e.RefID != 0 {
// caller should have already held the c.cm.mu lock.
c.cm.decrTraceRefCount(e.RefID)
}
}
c.mu.Unlock()
}
// Severity is the severity level of a trace event.
// The canonical enumeration of all valid values is here:
// https://github.com/grpc/grpc-proto/blob/9b13d199cc0d4703c7ea26c9c330ba695866eb23/grpc/channelz/v1/channelz.proto#L126.
type Severity int
const (
// CtUnknown indicates unknown severity of a trace event.
CtUnknown Severity = iota
// CtInfo indicates info level severity of a trace event.
CtInfo
// CtWarning indicates warning level severity of a trace event.
CtWarning
// CtError indicates error level severity of a trace event.
CtError
)
// RefChannelType is the type of the entity being referenced in a trace event.
type RefChannelType int
const (
// RefUnknown indicates an unknown entity type, the zero value for this type.
RefUnknown RefChannelType = iota
// RefChannel indicates the referenced entity is a Channel.
RefChannel
// RefSubChannel indicates the referenced entity is a SubChannel.
RefSubChannel
// RefServer indicates the referenced entity is a Server.
RefServer
// RefListenSocket indicates the referenced entity is a ListenSocket.
RefListenSocket
// RefNormalSocket indicates the referenced entity is a NormalSocket.
RefNormalSocket
)
var refChannelTypeToString = map[RefChannelType]string{
RefUnknown: "Unknown",
RefChannel: "Channel",
RefSubChannel: "SubChannel",
RefServer: "Server",
RefListenSocket: "ListenSocket",
RefNormalSocket: "NormalSocket",
}
// String returns a string representation of the RefChannelType
func (r RefChannelType) String() string {
return refChannelTypeToString[r]
}
// AddTraceEvent adds trace related to the entity with specified id, using the
// provided TraceEventDesc.
//
// If channelz is not turned ON, this will simply log the event descriptions.
func AddTraceEvent(l grpclog.DepthLoggerV2, e Entity, depth int, desc *TraceEvent) {
// Log only the trace description associated with the bottom most entity.
d := fmt.Sprintf("[%s]%s", e, desc.Desc)
switch desc.Severity {
case CtUnknown, CtInfo:
l.InfoDepth(depth+1, d)
case CtWarning:
l.WarningDepth(depth+1, d)
case CtError:
l.ErrorDepth(depth+1, d)
}
if getMaxTraceEntry() == 0 {
return
}
if IsOn() {
db.traceEvent(e.id(), desc)
}
}

49
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/*
* Copyright 2021 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import (
"context"
)
// requestInfoKey is a struct to be used as the key to store RequestInfo in a
// context.
type requestInfoKey struct{}
// NewRequestInfoContext creates a context with ri.
func NewRequestInfoContext(ctx context.Context, ri any) context.Context {
return context.WithValue(ctx, requestInfoKey{}, ri)
}
// RequestInfoFromContext extracts the RequestInfo from ctx.
func RequestInfoFromContext(ctx context.Context) any {
return ctx.Value(requestInfoKey{})
}
// clientHandshakeInfoKey is a struct used as the key to store
// ClientHandshakeInfo in a context.
type clientHandshakeInfoKey struct{}
// ClientHandshakeInfoFromContext extracts the ClientHandshakeInfo from ctx.
func ClientHandshakeInfoFromContext(ctx context.Context) any {
return ctx.Value(clientHandshakeInfoKey{})
}
// NewClientHandshakeInfoContext creates a context with chi.
func NewClientHandshakeInfoContext(ctx context.Context, chi any) context.Context {
return context.WithValue(ctx, clientHandshakeInfoKey{}, chi)
}

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/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package credentials defines APIs for parsing SPIFFE ID.
//
// All APIs in this package are experimental.
package credentials
import (
"crypto/tls"
"crypto/x509"
"net/url"
"google.golang.org/grpc/grpclog"
)
var logger = grpclog.Component("credentials")
// SPIFFEIDFromState parses the SPIFFE ID from State. If the SPIFFE ID format
// is invalid, return nil with warning.
func SPIFFEIDFromState(state tls.ConnectionState) *url.URL {
if len(state.PeerCertificates) == 0 || len(state.PeerCertificates[0].URIs) == 0 {
return nil
}
return SPIFFEIDFromCert(state.PeerCertificates[0])
}
// SPIFFEIDFromCert parses the SPIFFE ID from x509.Certificate. If the SPIFFE
// ID format is invalid, return nil with warning.
func SPIFFEIDFromCert(cert *x509.Certificate) *url.URL {
if cert == nil || cert.URIs == nil {
return nil
}
var spiffeID *url.URL
for _, uri := range cert.URIs {
if uri == nil || uri.Scheme != "spiffe" || uri.Opaque != "" || (uri.User != nil && uri.User.Username() != "") {
continue
}
// From this point, we assume the uri is intended for a SPIFFE ID.
if len(uri.String()) > 2048 {
logger.Warning("invalid SPIFFE ID: total ID length larger than 2048 bytes")
return nil
}
if len(uri.Host) == 0 || len(uri.Path) == 0 {
logger.Warning("invalid SPIFFE ID: domain or workload ID is empty")
return nil
}
if len(uri.Host) > 255 {
logger.Warning("invalid SPIFFE ID: domain length larger than 255 characters")
return nil
}
// A valid SPIFFE certificate can only have exactly one URI SAN field.
if len(cert.URIs) > 1 {
logger.Warning("invalid SPIFFE ID: multiple URI SANs")
return nil
}
spiffeID = uri
}
return spiffeID
}

58
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/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package credentials
import (
"net"
"syscall"
)
type sysConn = syscall.Conn
// syscallConn keeps reference of rawConn to support syscall.Conn for channelz.
// SyscallConn() (the method in interface syscall.Conn) is explicitly
// implemented on this type,
//
// Interface syscall.Conn is implemented by most net.Conn implementations (e.g.
// TCPConn, UnixConn), but is not part of net.Conn interface. So wrapper conns
// that embed net.Conn don't implement syscall.Conn. (Side note: tls.Conn
// doesn't embed net.Conn, so even if syscall.Conn is part of net.Conn, it won't
// help here).
type syscallConn struct {
net.Conn
// sysConn is a type alias of syscall.Conn. It's necessary because the name
// `Conn` collides with `net.Conn`.
sysConn
}
// WrapSyscallConn tries to wrap rawConn and newConn into a net.Conn that
// implements syscall.Conn. rawConn will be used to support syscall, and newConn
// will be used for read/write.
//
// This function returns newConn if rawConn doesn't implement syscall.Conn.
func WrapSyscallConn(rawConn, newConn net.Conn) net.Conn {
sysConn, ok := rawConn.(syscall.Conn)
if !ok {
return newConn
}
return &syscallConn{
Conn: newConn,
sysConn: sysConn,
}
}

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/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package credentials
import (
"crypto/tls"
)
const alpnProtoStrH2 = "h2"
// AppendH2ToNextProtos appends h2 to next protos.
func AppendH2ToNextProtos(ps []string) []string {
for _, p := range ps {
if p == alpnProtoStrH2 {
return ps
}
}
ret := make([]string, 0, len(ps)+1)
ret = append(ret, ps...)
return append(ret, alpnProtoStrH2)
}
// CloneTLSConfig returns a shallow clone of the exported
// fields of cfg, ignoring the unexported sync.Once, which
// contains a mutex and must not be copied.
//
// If cfg is nil, a new zero tls.Config is returned.
//
// TODO: inline this function if possible.
func CloneTLSConfig(cfg *tls.Config) *tls.Config {
if cfg == nil {
return &tls.Config{}
}
return cfg.Clone()
}

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/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package envconfig contains grpc settings configured by environment variables.
package envconfig
import (
"os"
"strconv"
"strings"
)
var (
// TXTErrIgnore is set if TXT errors should be ignored ("GRPC_GO_IGNORE_TXT_ERRORS" is not "false").
TXTErrIgnore = boolFromEnv("GRPC_GO_IGNORE_TXT_ERRORS", true)
// RingHashCap indicates the maximum ring size which defaults to 4096
// entries but may be overridden by setting the environment variable
// "GRPC_RING_HASH_CAP". This does not override the default bounds
// checking which NACKs configs specifying ring sizes > 8*1024*1024 (~8M).
RingHashCap = uint64FromEnv("GRPC_RING_HASH_CAP", 4096, 1, 8*1024*1024)
// LeastRequestLB is set if we should support the least_request_experimental
// LB policy, which can be enabled by setting the environment variable
// "GRPC_EXPERIMENTAL_ENABLE_LEAST_REQUEST" to "true".
LeastRequestLB = boolFromEnv("GRPC_EXPERIMENTAL_ENABLE_LEAST_REQUEST", false)
// ALTSMaxConcurrentHandshakes is the maximum number of concurrent ALTS
// handshakes that can be performed.
ALTSMaxConcurrentHandshakes = uint64FromEnv("GRPC_ALTS_MAX_CONCURRENT_HANDSHAKES", 100, 1, 100)
// EnforceALPNEnabled is set if TLS connections to servers with ALPN disabled
// should be rejected. The HTTP/2 protocol requires ALPN to be enabled, this
// option is present for backward compatibility. This option may be overridden
// by setting the environment variable "GRPC_ENFORCE_ALPN_ENABLED" to "true"
// or "false".
EnforceALPNEnabled = boolFromEnv("GRPC_ENFORCE_ALPN_ENABLED", true)
// XDSFallbackSupport is the env variable that controls whether support for
// xDS fallback is turned on. If this is unset or is false, only the first
// xDS server in the list of server configs will be used.
XDSFallbackSupport = boolFromEnv("GRPC_EXPERIMENTAL_XDS_FALLBACK", true)
// NewPickFirstEnabled is set if the new pickfirst leaf policy is to be used
// instead of the exiting pickfirst implementation. This can be enabled by
// setting the environment variable "GRPC_EXPERIMENTAL_ENABLE_NEW_PICK_FIRST"
// to "true".
NewPickFirstEnabled = boolFromEnv("GRPC_EXPERIMENTAL_ENABLE_NEW_PICK_FIRST", false)
)
func boolFromEnv(envVar string, def bool) bool {
if def {
// The default is true; return true unless the variable is "false".
return !strings.EqualFold(os.Getenv(envVar), "false")
}
// The default is false; return false unless the variable is "true".
return strings.EqualFold(os.Getenv(envVar), "true")
}
func uint64FromEnv(envVar string, def, min, max uint64) uint64 {
v, err := strconv.ParseUint(os.Getenv(envVar), 10, 64)
if err != nil {
return def
}
if v < min {
return min
}
if v > max {
return max
}
return v
}

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/*
*
* Copyright 2022 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package envconfig
import "os"
const (
envObservabilityConfig = "GRPC_GCP_OBSERVABILITY_CONFIG"
envObservabilityConfigFile = "GRPC_GCP_OBSERVABILITY_CONFIG_FILE"
)
var (
// ObservabilityConfig is the json configuration for the gcp/observability
// package specified directly in the envObservabilityConfig env var.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
ObservabilityConfig = os.Getenv(envObservabilityConfig)
// ObservabilityConfigFile is the json configuration for the
// gcp/observability specified in a file with the location specified in
// envObservabilityConfigFile env var.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
ObservabilityConfigFile = os.Getenv(envObservabilityConfigFile)
)

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/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package envconfig
import (
"os"
)
const (
// XDSBootstrapFileNameEnv is the env variable to set bootstrap file name.
// Do not use this and read from env directly. Its value is read and kept in
// variable XDSBootstrapFileName.
//
// When both bootstrap FileName and FileContent are set, FileName is used.
XDSBootstrapFileNameEnv = "GRPC_XDS_BOOTSTRAP"
// XDSBootstrapFileContentEnv is the env variable to set bootstrap file
// content. Do not use this and read from env directly. Its value is read
// and kept in variable XDSBootstrapFileContent.
//
// When both bootstrap FileName and FileContent are set, FileName is used.
XDSBootstrapFileContentEnv = "GRPC_XDS_BOOTSTRAP_CONFIG"
)
var (
// XDSBootstrapFileName holds the name of the file which contains xDS
// bootstrap configuration. Users can specify the location of the bootstrap
// file by setting the environment variable "GRPC_XDS_BOOTSTRAP".
//
// When both bootstrap FileName and FileContent are set, FileName is used.
XDSBootstrapFileName = os.Getenv(XDSBootstrapFileNameEnv)
// XDSBootstrapFileContent holds the content of the xDS bootstrap
// configuration. Users can specify the bootstrap config by setting the
// environment variable "GRPC_XDS_BOOTSTRAP_CONFIG".
//
// When both bootstrap FileName and FileContent are set, FileName is used.
XDSBootstrapFileContent = os.Getenv(XDSBootstrapFileContentEnv)
// C2PResolverTestOnlyTrafficDirectorURI is the TD URI for testing.
C2PResolverTestOnlyTrafficDirectorURI = os.Getenv("GRPC_TEST_ONLY_GOOGLE_C2P_RESOLVER_TRAFFIC_DIRECTOR_URI")
// XDSDualstackEndpointsEnabled is true if gRPC should read the
// "additional addresses" in the xDS endpoint resource.
// TODO: https://github.com/grpc/grpc-go/issues/7866 - Control this using
// an env variable when all LB policies handle endpoints.
XDSDualstackEndpointsEnabled = false
)

28
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/*
* Copyright 2023 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package internal
var (
// WithBufferPool is implemented by the grpc package and returns a dial
// option to configure a shared buffer pool for a grpc.ClientConn.
WithBufferPool any // func (grpc.SharedBufferPool) grpc.DialOption
// BufferPool is implemented by the grpc package and returns a server
// option to configure a shared buffer pool for a grpc.Server.
BufferPool any // func (grpc.SharedBufferPool) grpc.ServerOption
)

79
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/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package grpclog provides logging functionality for internal gRPC packages,
// outside of the functionality provided by the external `grpclog` package.
package grpclog
import (
"fmt"
"google.golang.org/grpc/grpclog"
)
// PrefixLogger does logging with a prefix.
//
// Logging method on a nil logs without any prefix.
type PrefixLogger struct {
logger grpclog.DepthLoggerV2
prefix string
}
// Infof does info logging.
func (pl *PrefixLogger) Infof(format string, args ...any) {
if pl != nil {
// Handle nil, so the tests can pass in a nil logger.
format = pl.prefix + format
pl.logger.InfoDepth(1, fmt.Sprintf(format, args...))
return
}
grpclog.InfoDepth(1, fmt.Sprintf(format, args...))
}
// Warningf does warning logging.
func (pl *PrefixLogger) Warningf(format string, args ...any) {
if pl != nil {
format = pl.prefix + format
pl.logger.WarningDepth(1, fmt.Sprintf(format, args...))
return
}
grpclog.WarningDepth(1, fmt.Sprintf(format, args...))
}
// Errorf does error logging.
func (pl *PrefixLogger) Errorf(format string, args ...any) {
if pl != nil {
format = pl.prefix + format
pl.logger.ErrorDepth(1, fmt.Sprintf(format, args...))
return
}
grpclog.ErrorDepth(1, fmt.Sprintf(format, args...))
}
// V reports whether verbosity level l is at least the requested verbose level.
func (pl *PrefixLogger) V(l int) bool {
if pl != nil {
return pl.logger.V(l)
}
return true
}
// NewPrefixLogger creates a prefix logger with the given prefix.
func NewPrefixLogger(logger grpclog.DepthLoggerV2, prefix string) *PrefixLogger {
return &PrefixLogger{logger: logger, prefix: prefix}
}

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