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rebase: bump google.golang.org/grpc from 1.55.0 to 1.56.0

Browse Source 
Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.55.0 to 1.56.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.55.0...v1.56.0)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
This commit is contained in:
dependabot[bot] 2023-06-19 21:01:00 +00:00 committed by mergify[bot]
parent c635103697
commit f815eb46fd
43 changed files with 1982 additions and 875 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
go.mod
View File

@ -30,7 +30,7 @@ require (
golang.org/x/crypto v0.9.0
golang.org/x/net v0.10.0
golang.org/x/sys v0.9.0
google.golang.org/grpc v1.55.0
google.golang.org/grpc v1.56.0
google.golang.org/protobuf v1.30.0
//
// when updating k8s.io/kubernetes, make sure to update the replace section too
@ -153,7 +153,7 @@ require (
go.uber.org/atomic v1.10.0 // indirect
go.uber.org/multierr v1.8.0 // indirect
go.uber.org/zap v1.24.0 // indirect
golang.org/x/oauth2 v0.6.0 // indirect
golang.org/x/oauth2 v0.7.0 // indirect
golang.org/x/sync v0.2.0 // indirect
golang.org/x/term v0.8.0 // indirect
golang.org/x/text v0.9.0 // indirect
@ -162,7 +162,7 @@ require (
gomodules.xyz/jsonpatch/v2 v2.3.0 // indirect
google.golang.org/api v0.110.0 // indirect
google.golang.org/appengine v1.6.7 // indirect
google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4 // indirect
google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
gopkg.in/inf.v0 v0.9.1 // indirect
gopkg.in/natefinch/lumberjack.v2 v2.0.0 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect

22
go.sum
View File

@ -34,14 +34,14 @@ cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvf
cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
cloud.google.com/go/compute v1.18.0 h1:FEigFqoDbys2cvFkZ9Fjq4gnHBP55anJ0yQyau2f9oY=
cloud.google.com/go/compute v1.19.1 h1:am86mquDUgjGNWxiGn+5PGLbmgiWXlE/yNWpIpNvuXY=
cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
cloud.google.com/go/iam v0.12.0 h1:DRtTY29b75ciH6Ov1PHb4/iat2CLCvrOm40Q0a6DFpE=
cloud.google.com/go/kms v1.9.0 h1:b0votJQa/9DSsxgHwN33/tTLA7ZHVzfWhDCrfiXijSo=
cloud.google.com/go/monitoring v1.12.0 h1:+X79DyOP/Ny23XIqSIb37AvFWSxDN15w/ktklVvPLso=
cloud.google.com/go/iam v0.13.0 h1:+CmB+K0J/33d0zSQ9SlFWUeCCEn5XJA0ZMZ3pHE9u8k=
cloud.google.com/go/kms v1.10.1 h1:7hm1bRqGCA1GBRQUrp831TwJ9TWhP+tvLuP497CQS2g=
cloud.google.com/go/monitoring v1.13.0 h1:2qsrgXGVoRXpP7otZ14eE1I568zAa92sJSDPyOJvwjM=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
@ -224,6 +224,7 @@ github.com/cncf/xds/go v0.0.0-20210805033703-aa0b78936158/go.mod h1:eXthEFrGJvWH
github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
github.com/cncf/xds/go v0.0.0-20230607035331-e9ce68804cb4 h1:/inchEIKaYC1Akx+H+gqO04wryn5h75LSazbRlnya1k=
github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
github.com/cockroachdb/cockroach-go v0.0.0-20181001143604-e0a95dfd547c/go.mod h1:XGLbWH/ujMcbPbhZq52Nv6UrCghb1yGn//133kEsvDk=
github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
@ -305,6 +306,7 @@ github.com/envoyproxy/go-control-plane v0.9.9-0.20210512163311-63b5d3c536b0/go.m
github.com/envoyproxy/go-control-plane v0.9.10-0.20210907150352-cf90f659a021/go.mod h1:AFq3mo9L8Lqqiid3OhADV3RfLJnjiw63cSpi+fDTRC0=
github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.mod h1:KJwIaB5Mv44NWtYuAOFCVOjcI94vtpEz2JU/D2v6IjE=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/envoyproxy/protoc-gen-validate v0.10.1 h1:c0g45+xCJhdgFGw7a5QAfdS4byAbud7miNWJ1WwEVf8=
github.com/evanphx/json-patch v0.5.2/go.mod h1:ZWS5hhDbVDyob71nXKNL0+PWn6ToqBHMikGIFbs31qQ=
github.com/evanphx/json-patch v4.5.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
github.com/evanphx/json-patch v4.12.0+incompatible h1:4onqiflcdA9EOZ4RxV643DvftH5pOlLGNtQ5lPWQu84=
@ -1397,8 +1399,8 @@ golang.org/x/oauth2 v0.0.0-20210805134026-6f1e6394065a/go.mod h1:KelEdhl1UZF7XfJ
golang.org/x/oauth2 v0.0.0-20210819190943-2bc19b11175f/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
golang.org/x/oauth2 v0.0.0-20211104180415-d3ed0bb246c8/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
golang.org/x/oauth2 v0.0.0-20220223155221-ee480838109b/go.mod h1:DAh4E804XQdzx2j+YRIaUnCqCV2RuMz24cGBJ5QYIrc=
golang.org/x/oauth2 v0.6.0 h1:Lh8GPgSKBfWSwFvtuWOfeI3aAAnbXTSutYxJiOJFgIw=
golang.org/x/oauth2 v0.6.0/go.mod h1:ycmewcwgD4Rpr3eZJLSB4Kyyljb3qDh40vJ8STE5HKw=
golang.org/x/oauth2 v0.7.0 h1:qe6s0zUXlPX80/dITx3440hWZ7GwMwgDDyrSGTPJG/g=
golang.org/x/oauth2 v0.7.0/go.mod h1:hPLQkd9LyjfXTiRohC/41GhcFqxisoUQ99sCUOHO9x4=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@ -1744,8 +1746,8 @@ google.golang.org/genproto v0.0.0-20211118181313-81c1377c94b1/go.mod h1:5CzLGKJ6
google.golang.org/genproto v0.0.0-20220107163113-42d7afdf6368/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
google.golang.org/genproto v0.0.0-20220208230804-65c12eb4c068/go.mod h1:kGP+zUP2Ddo0ayMi4YuN7C3WZyJvGLZRh8Z5wnAqvEI=
google.golang.org/genproto v0.0.0-20220502173005-c8bf987b8c21/go.mod h1:RAyBrSAP7Fh3Nc84ghnVLDPuV51xc9agzmm4Ph6i0Q4=
google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4 h1:DdoeryqhaXp1LtT/emMP1BRJPHHKFi5akj/nbx/zNTA=
google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4/go.mod h1:NWraEVixdDnqcqQ30jipen1STv2r/n24Wb7twVTGR4s=
google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 h1:KpwkzHKEF7B9Zxg18WzOa7djJ+Ha5DzthMyZYQfEn2A=
google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1/go.mod h1:nKE/iIaLqn2bQwXBg8f1g2Ylh6r5MN5CmZvuzZCgsCU=
google.golang.org/grpc v1.14.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
google.golang.org/grpc v1.16.0/go.mod h1:0JHn/cJsOMiMfNA9+DeHDlAU7KAAB5GDlYFpa9MZMio=
google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
@ -1784,8 +1786,8 @@ google.golang.org/grpc v1.46.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACu
google.golang.org/grpc v1.46.2/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
google.golang.org/grpc v1.49.0/go.mod h1:ZgQEeidpAuNRZ8iRrlBKXZQP1ghovWIVhdJRyCDK+GI=
google.golang.org/grpc v1.51.0/go.mod h1:wgNDFcnuBGmxLKI/qn4T+m5BtEBYXJPvibbUPsAIPww=
google.golang.org/grpc v1.55.0 h1:3Oj82/tFSCeUrRTg/5E/7d/W5A1tj6Ky1ABAuZuv5ag=
google.golang.org/grpc v1.55.0/go.mod h1:iYEXKGkEBhg1PjZQvoYEVPTDkHo1/bjTnfwTeGONTY8=
google.golang.org/grpc v1.56.0 h1:+y7Bs8rtMd07LeXmL3NxcTLn7mUkbKZqEpPhMNkwJEE=
google.golang.org/grpc v1.56.0/go.mod h1:I9bI3vqKfayGqPUAwGdOSu7kt6oIJLixfffKrpXqQ9s=
google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=

12
vendor/golang.org/x/oauth2/README.md generated vendored
View File

@ -19,7 +19,7 @@ See pkg.go.dev for further documentation and examples.
* [pkg.go.dev/golang.org/x/oauth2](https://pkg.go.dev/golang.org/x/oauth2)
* [pkg.go.dev/golang.org/x/oauth2/google](https://pkg.go.dev/golang.org/x/oauth2/google)
## Policy for new packages
## Policy for new endpoints
We no longer accept new provider-specific packages in this repo if all
they do is add a single endpoint variable. If you just want to add a
@ -29,8 +29,12 @@ package.
## Report Issues / Send Patches
This repository uses Gerrit for code changes. To learn how to submit changes to
this repository, see https://golang.org/doc/contribute.html.
The main issue tracker for the oauth2 repository is located at
https://github.com/golang/oauth2/issues.
This repository uses Gerrit for code changes. To learn how to submit changes to
this repository, see https://golang.org/doc/contribute.html. In particular:
* Excluding trivial changes, all contributions should be connected to an existing issue.
* API changes must go through the [change proposal process](https://go.dev/s/proposal-process) before they can be accepted.
* The code owners are listed at [dev.golang.org/owners](https://dev.golang.org/owners#:~:text=x/oauth2).

33
vendor/golang.org/x/oauth2/oauth2.go generated vendored
View File

@ -16,6 +16,7 @@ import (
"net/url"
"strings"
"sync"
"time"
"golang.org/x/oauth2/internal"
)
@ -140,7 +141,7 @@ func SetAuthURLParam(key, value string) AuthCodeOption {
//
// State is a token to protect the user from CSRF attacks. You must
// always provide a non-empty string and validate that it matches the
// the state query parameter on your redirect callback.
// state query parameter on your redirect callback.
// See http://tools.ietf.org/html/rfc6749#section-10.12 for more info.
//
// Opts may include AccessTypeOnline or AccessTypeOffline, as well
@ -290,6 +291,8 @@ type reuseTokenSource struct {
mu sync.Mutex // guards t
t *Token
expiryDelta time.Duration
}
// Token returns the current token if it's still valid, else will
@ -305,6 +308,7 @@ func (s *reuseTokenSource) Token() (*Token, error) {
if err != nil {
return nil, err
}
t.expiryDelta = s.expiryDelta
s.t = t
return t, nil
}
@ -379,3 +383,30 @@ func ReuseTokenSource(t *Token, src TokenSource) TokenSource {
new: src,
}
}
// ReuseTokenSource returns a TokenSource that acts in the same manner as the
// TokenSource returned by ReuseTokenSource, except the expiry buffer is
// configurable. The expiration time of a token is calculated as
// t.Expiry.Add(-earlyExpiry).
func ReuseTokenSourceWithExpiry(t *Token, src TokenSource, earlyExpiry time.Duration) TokenSource {
// Don't wrap a reuseTokenSource in itself. That would work,
// but cause an unnecessary number of mutex operations.
// Just build the equivalent one.
if rt, ok := src.(*reuseTokenSource); ok {
if t == nil {
// Just use it directly, but set the expiryDelta to earlyExpiry,
// so the behavior matches what the user expects.
rt.expiryDelta = earlyExpiry
return rt
}
src = rt.new
}
if t != nil {
t.expiryDelta = earlyExpiry
}
return &reuseTokenSource{
t: t,
new: src,
expiryDelta: earlyExpiry,
}
}

14
vendor/golang.org/x/oauth2/token.go generated vendored
View File

@ -16,10 +16,10 @@ import (
"golang.org/x/oauth2/internal"
)
// expiryDelta determines how earlier a token should be considered
// defaultExpiryDelta determines how earlier a token should be considered
// expired than its actual expiration time. It is used to avoid late
// expirations due to client-server time mismatches.
const expiryDelta = 10 * time.Second
const defaultExpiryDelta = 10 * time.Second
// Token represents the credentials used to authorize
// the requests to access protected resources on the OAuth 2.0
@ -52,6 +52,11 @@ type Token struct {
// raw optionally contains extra metadata from the server
// when updating a token.
raw interface{}
// expiryDelta is used to calculate when a token is considered
// expired, by subtracting from Expiry. If zero, defaultExpiryDelta
// is used.
expiryDelta time.Duration
}
// Type returns t.TokenType if non-empty, else "Bearer".
@ -127,6 +132,11 @@ func (t *Token) expired() bool {
if t.Expiry.IsZero() {
return false
}
expiryDelta := defaultExpiryDelta
if t.expiryDelta != 0 {
expiryDelta = t.expiryDelta
}
return t.Expiry.Round(0).Add(-expiryDelta).Before(timeNow())
}

381
vendor/google.golang.org/genproto/googleapis/api/annotations/client.pb.go generated vendored
View File

@ -1,4 +1,4 @@
// Copyright 2018 Google LLC
// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@ -223,7 +223,9 @@ type ClientLibrarySettings struct {
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// Version of the API to apply these settings to.
// Version of the API to apply these settings to. This is the full protobuf
// package for the API, ending in the version element.
// Examples: "google.cloud.speech.v1" and "google.spanner.admin.database.v1".
Version string `protobuf:"bytes,1,opt,name=version,proto3" json:"version,omitempty"`
// Launch stage of this version of the API.
LaunchStage api.LaunchStage `protobuf:"varint,2,opt,name=launch_stage,json=launchStage,proto3,enum=google.api.LaunchStage" json:"launch_stage,omitempty"`
@ -392,6 +394,9 @@ type Publishing struct {
// times in this list, then the last one wins. Settings from earlier
// settings with the same version string are discarded.
LibrarySettings []*ClientLibrarySettings `protobuf:"bytes,109,rep,name=library_settings,json=librarySettings,proto3" json:"library_settings,omitempty"`
// Optional link to proto reference documentation. Example:
// https://cloud.google.com/pubsub/lite/docs/reference/rpc
ProtoReferenceDocumentationUri string `protobuf:"bytes,110,opt,name=proto_reference_documentation_uri,json=protoReferenceDocumentationUri,proto3" json:"proto_reference_documentation_uri,omitempty"`
}
func (x *Publishing) Reset() {
@ -489,6 +494,13 @@ func (x *Publishing) GetLibrarySettings() []*ClientLibrarySettings {
return nil
}
func (x *Publishing) GetProtoReferenceDocumentationUri() string {
if x != nil {
return x.ProtoReferenceDocumentationUri
}
return ""
}
// Settings for Java client libraries.
type JavaSettings struct {
state protoimpl.MessageState
@ -783,6 +795,31 @@ type DotnetSettings struct {
// Some settings.
Common *CommonLanguageSettings `protobuf:"bytes,1,opt,name=common,proto3" json:"common,omitempty"`
// Map from original service names to renamed versions.
// This is used when the default generated types
// would cause a naming conflict. (Neither name is
// fully-qualified.)
// Example: Subscriber to SubscriberServiceApi.
RenamedServices map[string]string `protobuf:"bytes,2,rep,name=renamed_services,json=renamedServices,proto3" json:"renamed_services,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
// Map from full resource types to the effective short name
// for the resource. This is used when otherwise resource
// named from different services would cause naming collisions.
// Example entry:
// "datalabeling.googleapis.com/Dataset": "DataLabelingDataset"
RenamedResources map[string]string `protobuf:"bytes,3,rep,name=renamed_resources,json=renamedResources,proto3" json:"renamed_resources,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
// List of full resource types to ignore during generation.
// This is typically used for API-specific Location resources,
// which should be handled by the generator as if they were actually
// the common Location resources.
// Example entry: "documentai.googleapis.com/Location"
IgnoredResources []string `protobuf:"bytes,4,rep,name=ignored_resources,json=ignoredResources,proto3" json:"ignored_resources,omitempty"`
// Namespaces which must be aliased in snippets due to
// a known (but non-generator-predictable) naming collision
ForcedNamespaceAliases []string `protobuf:"bytes,5,rep,name=forced_namespace_aliases,json=forcedNamespaceAliases,proto3" json:"forced_namespace_aliases,omitempty"`
// Method signatures (in the form "service.method(signature)")
// which are provided separately, so shouldn't be generated.
// Snippets *calling* these methods are still generated, however.
HandwrittenSignatures []string `protobuf:"bytes,6,rep,name=handwritten_signatures,json=handwrittenSignatures,proto3" json:"handwritten_signatures,omitempty"`
}
func (x *DotnetSettings) Reset() {
@ -824,6 +861,41 @@ func (x *DotnetSettings) GetCommon() *CommonLanguageSettings {
return nil
}
func (x *DotnetSettings) GetRenamedServices() map[string]string {
if x != nil {
return x.RenamedServices
}
return nil
}
func (x *DotnetSettings) GetRenamedResources() map[string]string {
if x != nil {
return x.RenamedResources
}
return nil
}
func (x *DotnetSettings) GetIgnoredResources() []string {
if x != nil {
return x.IgnoredResources
}
return nil
}
func (x *DotnetSettings) GetForcedNamespaceAliases() []string {
if x != nil {
return x.ForcedNamespaceAliases
}
return nil
}
func (x *DotnetSettings) GetHandwrittenSignatures() []string {
if x != nil {
return x.HandwrittenSignatures
}
return nil
}
// Settings for Ruby client libraries.
type RubySettings struct {
state protoimpl.MessageState
@ -938,8 +1010,8 @@ type MethodSettings struct {
// Example of a YAML configuration::
//
// publishing:
// method_behavior:
// - selector: CreateAdDomain
// method_settings:
// - selector: google.cloud.speech.v2.Speech.BatchRecognize
// long_running:
// initial_poll_delay:
// seconds: 60 # 1 minute
@ -1025,7 +1097,7 @@ type MethodSettings_LongRunning struct {
func (x *MethodSettings_LongRunning) Reset() {
*x = MethodSettings_LongRunning{}
if protoimpl.UnsafeEnabled {
mi := &file_google_api_client_proto_msgTypes[13]
mi := &file_google_api_client_proto_msgTypes[15]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
@ -1038,7 +1110,7 @@ func (x *MethodSettings_LongRunning) String() string {
func (*MethodSettings_LongRunning) ProtoMessage() {}
func (x *MethodSettings_LongRunning) ProtoReflect() protoreflect.Message {
mi := &file_google_api_client_proto_msgTypes[13]
mi := &file_google_api_client_proto_msgTypes[15]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
@ -1252,7 +1324,7 @@ var file_google_api_client_proto_rawDesc = []byte{
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0x74, 0x6f, 0x33,
}
var (
@ -1409,7 +1516,7 @@ func file_google_api_client_proto_rawDescGZIP() []byte {
}
var file_google_api_client_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
var file_google_api_client_proto_msgTypes = make([]protoimpl.MessageInfo, 14)
var file_google_api_client_proto_msgTypes = make([]protoimpl.MessageInfo, 16)
var file_google_api_client_proto_goTypes = []interface{}{
(ClientLibraryOrganization)(0), // 0: google.api.ClientLibraryOrganization
(ClientLibraryDestination)(0), // 1: google.api.ClientLibraryDestination
@ -1426,15 +1533,17 @@ var file_google_api_client_proto_goTypes = []interface{}{
(*GoSettings)(nil), // 12: google.api.GoSettings
(*MethodSettings)(nil), // 13: google.api.MethodSettings
nil, // 14: google.api.JavaSettings.ServiceClassNamesEntry
(*MethodSettings_LongRunning)(nil), // 15: google.api.MethodSettings.LongRunning
(api.LaunchStage)(0), // 16: google.api.LaunchStage
(*durationpb.Duration)(nil), // 17: google.protobuf.Duration
(*descriptorpb.MethodOptions)(nil), // 18: google.protobuf.MethodOptions
(*descriptorpb.ServiceOptions)(nil), // 19: google.protobuf.ServiceOptions
nil, // 15: google.api.DotnetSettings.RenamedServicesEntry
nil, // 16: google.api.DotnetSettings.RenamedResourcesEntry
(*MethodSettings_LongRunning)(nil), // 17: google.api.MethodSettings.LongRunning
(api.LaunchStage)(0), // 18: google.api.LaunchStage
(*durationpb.Duration)(nil), // 19: google.protobuf.Duration
(*descriptorpb.MethodOptions)(nil), // 20: google.protobuf.MethodOptions
(*descriptorpb.ServiceOptions)(nil), // 21: google.protobuf.ServiceOptions
}
var file_google_api_client_proto_depIdxs = []int32{
1, // 0: google.api.CommonLanguageSettings.destinations:type_name -> google.api.ClientLibraryDestination
16, // 1: google.api.ClientLibrarySettings.launch_stage:type_name -> google.api.LaunchStage
18, // 1: google.api.ClientLibrarySettings.launch_stage:type_name -> google.api.LaunchStage
5, // 2: google.api.ClientLibrarySettings.java_settings:type_name -> google.api.JavaSettings
6, // 3: google.api.ClientLibrarySettings.cpp_settings:type_name -> google.api.CppSettings
7, // 4: google.api.ClientLibrarySettings.php_settings:type_name -> google.api.PhpSettings
@ -1453,20 +1562,22 @@ var file_google_api_client_proto_depIdxs = []int32{
2, // 17: google.api.PythonSettings.common:type_name -> google.api.CommonLanguageSettings
2, // 18: google.api.NodeSettings.common:type_name -> google.api.CommonLanguageSettings
2, // 19: google.api.DotnetSettings.common:type_name -> google.api.CommonLanguageSettings
2, // 20: google.api.RubySettings.common:type_name -> google.api.CommonLanguageSettings
2, // 21: google.api.GoSettings.common:type_name -> google.api.CommonLanguageSettings
15, // 22: google.api.MethodSettings.long_running:type_name -> google.api.MethodSettings.LongRunning
17, // 23: google.api.MethodSettings.LongRunning.initial_poll_delay:type_name -> google.protobuf.Duration
17, // 24: google.api.MethodSettings.LongRunning.max_poll_delay:type_name -> google.protobuf.Duration
17, // 25: google.api.MethodSettings.LongRunning.total_poll_timeout:type_name -> google.protobuf.Duration
18, // 26: google.api.method_signature:extendee -> google.protobuf.MethodOptions
19, // 27: google.api.default_host:extendee -> google.protobuf.ServiceOptions
19, // 28: google.api.oauth_scopes:extendee -> google.protobuf.ServiceOptions
29, // [29:29] is the sub-list for method output_type
29, // [29:29] is the sub-list for method input_type
29, // [29:29] is the sub-list for extension type_name
26, // [26:29] is the sub-list for extension extendee
0, // [0:26] is the sub-list for field type_name
15, // 20: google.api.DotnetSettings.renamed_services:type_name -> google.api.DotnetSettings.RenamedServicesEntry
16, // 21: google.api.DotnetSettings.renamed_resources:type_name -> google.api.DotnetSettings.RenamedResourcesEntry
2, // 22: google.api.RubySettings.common:type_name -> google.api.CommonLanguageSettings
2, // 23: google.api.GoSettings.common:type_name -> google.api.CommonLanguageSettings
17, // 24: google.api.MethodSettings.long_running:type_name -> google.api.MethodSettings.LongRunning
19, // 25: google.api.MethodSettings.LongRunning.initial_poll_delay:type_name -> google.protobuf.Duration
19, // 26: google.api.MethodSettings.LongRunning.max_poll_delay:type_name -> google.protobuf.Duration
19, // 27: google.api.MethodSettings.LongRunning.total_poll_timeout:type_name -> google.protobuf.Duration
20, // 28: google.api.method_signature:extendee -> google.protobuf.MethodOptions
21, // 29: google.api.default_host:extendee -> google.protobuf.ServiceOptions
21, // 30: google.api.oauth_scopes:extendee -> google.protobuf.ServiceOptions
31, // [31:31] is the sub-list for method output_type
31, // [31:31] is the sub-list for method input_type
31, // [31:31] is the sub-list for extension type_name
28, // [28:31] is the sub-list for extension extendee
0, // [0:28] is the sub-list for field type_name
}
func init() { file_google_api_client_proto_init() }
@ -1619,7 +1730,7 @@ func file_google_api_client_proto_init() {
return nil
}
}
file_google_api_client_proto_msgTypes[13].Exporter = func(v interface{}, i int) interface{} {
file_google_api_client_proto_msgTypes[15].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*MethodSettings_LongRunning); i {
case 0:
return &v.state
@ -1638,7 +1749,7 @@ func file_google_api_client_proto_init() {
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_google_api_client_proto_rawDesc,
NumEnums: 2,
NumMessages: 14,
NumMessages: 16,
NumExtensions: 3,
NumServices: 0,
},

20
vendor/google.golang.org/genproto/googleapis/api/annotations/field_behavior.pb.go generated vendored
View File

@ -1,4 +1,4 @@
// Copyright 2018 Google LLC
// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@ -14,8 +14,8 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.27.1
// protoc v3.12.2
// protoc-gen-go v1.26.0
// protoc v3.21.9
// source: google/api/field_behavior.proto
package annotations
@ -149,13 +149,13 @@ var (
//
// 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];
// 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]

17
vendor/google.golang.org/genproto/googleapis/api/annotations/http.pb.go generated vendored
View File

@ -1,4 +1,4 @@
// Copyright 2015 Google LLC
// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@ -15,7 +15,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v3.12.2
// protoc v3.21.9
// source: google/api/http.proto
package annotations
@ -270,15 +270,18 @@ func (x *Http) GetFullyDecodeReservedExpansion() bool {
// 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
// - 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
// 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
// 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
@ -377,13 +380,15 @@ type HttpRule struct {
// Selects a method to which this rule applies.
//
// Refer to [selector][google.api.DocumentationRule.selector] for syntax details.
// 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

66
vendor/google.golang.org/genproto/googleapis/api/annotations/resource.pb.go generated vendored
View File

@ -1,4 +1,4 @@
// Copyright 2018 Google LLC
// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@ -15,7 +15,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v3.12.2
// protoc v3.21.9
// source: google/api/resource.proto
package annotations
@ -218,14 +218,14 @@ type ResourceDescriptor struct {
// The path pattern must follow the syntax, which aligns with HTTP binding
// syntax:
//
// Template = Segment { "/" Segment } ;
// Segment = LITERAL | Variable ;
// Variable = "{" LITERAL "}" ;
// Template = Segment { "/" Segment } ;
// Segment = LITERAL | Variable ;
// Variable = "{" LITERAL "}" ;
//
// Examples:
//
// - "projects/{project}/topics/{topic}"
// - "projects/{project}/knowledgeBases/{knowledge_base}"
// - "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,
@ -239,17 +239,17 @@ type ResourceDescriptor struct {
//
// 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
// };
// }
// // 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
@ -362,22 +362,22 @@ type ResourceReference struct {
//
// Example:
//
// message Subscription {
// string topic = 2 [(google.api.resource_reference) = {
// type: "pubsub.googleapis.com/Topic"
// }];
// }
// 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: "*"
// }];
// }
// 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
@ -385,11 +385,11 @@ type ResourceReference struct {
//
// Example:
//
// message ListLogEntriesRequest {
// string parent = 1 [(google.api.resource_reference) = {
// child_type: "logging.googleapis.com/LogEntry"
// };
// }
// 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"`
}

62
vendor/google.golang.org/genproto/googleapis/api/annotations/routing.pb.go generated vendored
View File

@ -1,4 +1,4 @@
// Copyright 2021 Google LLC
// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@ -15,7 +15,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v3.12.2
// protoc v3.21.9
// source: google/api/routing.proto
package annotations
@ -468,46 +468,46 @@ type RoutingParameter struct {
//
// 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.
// -- 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/*`.
// - 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"
// }
// {
// field: "table_name"
// }
//
// is a functionally equivalent shorthand to:
//
// {
// field: "table_name"
// path_template: "{table_name=**}"
// }
// {
// 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"`

4
vendor/google.golang.org/genproto/googleapis/api/httpbody/httpbody.pb.go generated vendored
View File

@ -1,4 +1,4 @@
// Copyright 2015 Google LLC
// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@ -15,7 +15,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v3.12.2
// protoc v3.21.9
// source: google/api/httpbody.proto
package httpbody

4
vendor/google.golang.org/genproto/googleapis/api/launch_stage.pb.go generated vendored
View File

@ -1,4 +1,4 @@
// Copyright 2015 Google LLC
// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@ -15,7 +15,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v3.18.1
// protoc v3.21.9
// source: google/api/launch_stage.proto
package api

29
vendor/google.golang.org/grpc/attributes/attributes.go generated vendored
View File

@ -25,6 +25,11 @@
// 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
@ -99,3 +104,27 @@ func (a *Attributes) Equal(o *Attributes) bool {
}
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 {
var key, val string
if str, ok := k.(interface{ String() string }); ok {
key = str.String()
}
if str, ok := v.(interface{ String() string }); ok {
val = str.String()
}
if !first {
sb.WriteString(", ")
}
sb.WriteString(fmt.Sprintf("%q: %q, ", key, val))
first = false
}
sb.WriteString("}")
return sb.String()
}

2
vendor/google.golang.org/grpc/balancer/balancer.go generated vendored
View File

@ -286,7 +286,7 @@ type PickResult struct {
//
// LB policies with child policies are responsible for propagating metadata
// injected by their children to the ClientConn, as part of Pick().
Metatada metadata.MD
Metadata metadata.MD
}
// TransientFailureError returns e. It exists for backward compatibility and

486
vendor/google.golang.org/grpc/balancer_conn_wrappers.go generated vendored
View File

@ -25,14 +25,20 @@ import (
"sync"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/internal/balancer/gracefulswitch"
"google.golang.org/grpc/internal/buffer"
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/internal/grpcsync"
"google.golang.org/grpc/resolver"
"google.golang.org/grpc/status"
)
type ccbMode int
const (
ccbModeActive = iota
ccbModeIdle
ccbModeClosed
ccbModeExitingIdle
)
// ccBalancerWrapper sits between the ClientConn and the Balancer.
@ -49,192 +55,101 @@ import (
// It uses the gracefulswitch.Balancer internally to ensure that balancer
// switches happen in a graceful manner.
type ccBalancerWrapper struct {
cc *ClientConn
// 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
// Since these fields are accessed only from handleXxx() methods which are
// synchronized by the watcher goroutine, we do not need a mutex to protect
// these fields.
// Outgoing (gRPC --> balancer) calls are guaranteed to execute in a
// mutually exclusive manner as they are scheduled in the serializer. Fields
// accessed *only* in these serializer callbacks, can therefore be accessed
// without a mutex.
balancer *gracefulswitch.Balancer
curBalancerName string
updateCh *buffer.Unbounded // Updates written on this channel are processed by watcher().
resultCh *buffer.Unbounded // Results of calls to UpdateClientConnState() are pushed here.
closed *grpcsync.Event // Indicates if close has been called.
done *grpcsync.Event // Indicates if close has completed its work.
// mu guards access to the below fields. Access to the serializer and its
// cancel function needs to be mutex protected because they are overwritten
// when the wrapper exits idle mode.
mu sync.Mutex
serializer *grpcsync.CallbackSerializer // To serialize all outoing calls.
serializerCancel context.CancelFunc // To close the seralizer at close/enterIdle time.
mode ccbMode // Tracks the current mode of the wrapper.
}
// newCCBalancerWrapper creates a new balancer wrapper. The underlying balancer
// is not created until the switchTo() method is invoked.
func newCCBalancerWrapper(cc *ClientConn, bopts balancer.BuildOptions) *ccBalancerWrapper {
ctx, cancel := context.WithCancel(context.Background())
ccb := &ccBalancerWrapper{
cc: cc,
updateCh: buffer.NewUnbounded(),
resultCh: buffer.NewUnbounded(),
closed: grpcsync.NewEvent(),
done: grpcsync.NewEvent(),
cc: cc,
opts: bopts,
serializer: grpcsync.NewCallbackSerializer(ctx),
serializerCancel: cancel,
}
go ccb.watcher()
ccb.balancer = gracefulswitch.NewBalancer(ccb, bopts)
return ccb
}
// The following xxxUpdate structs wrap the arguments received as part of the
// corresponding update. The watcher goroutine uses the 'type' of the update to
// invoke the appropriate handler routine to handle the update.
type ccStateUpdate struct {
ccs *balancer.ClientConnState
}
type scStateUpdate struct {
sc balancer.SubConn
state connectivity.State
err error
}
type exitIdleUpdate struct{}
type resolverErrorUpdate struct {
err error
}
type switchToUpdate struct {
name string
}
type subConnUpdate struct {
acbw *acBalancerWrapper
}
// watcher is a long-running goroutine which reads updates from a channel and
// invokes corresponding methods on the underlying balancer. It ensures that
// these methods are invoked in a synchronous fashion. It also ensures that
// these methods are invoked in the order in which the updates were received.
func (ccb *ccBalancerWrapper) watcher() {
for {
select {
case u := <-ccb.updateCh.Get():
ccb.updateCh.Load()
if ccb.closed.HasFired() {
break
}
switch update := u.(type) {
case *ccStateUpdate:
ccb.handleClientConnStateChange(update.ccs)
case *scStateUpdate:
ccb.handleSubConnStateChange(update)
case *exitIdleUpdate:
ccb.handleExitIdle()
case *resolverErrorUpdate:
ccb.handleResolverError(update.err)
case *switchToUpdate:
ccb.handleSwitchTo(update.name)
case *subConnUpdate:
ccb.handleRemoveSubConn(update.acbw)
default:
logger.Errorf("ccBalancerWrapper.watcher: unknown update %+v, type %T", update, update)
}
case <-ccb.closed.Done():
}
if ccb.closed.HasFired() {
ccb.handleClose()
return
}
}
}
// updateClientConnState is invoked by grpc to push a ClientConnState update to
// the underlying balancer.
//
// Unlike other methods invoked by grpc to push updates to the underlying
// balancer, this method cannot simply push the update onto the update channel
// and return. It needs to return the error returned by the underlying balancer
// back to grpc which propagates that to the resolver.
func (ccb *ccBalancerWrapper) updateClientConnState(ccs *balancer.ClientConnState) error {
ccb.updateCh.Put(&ccStateUpdate{ccs: ccs})
var res interface{}
select {
case res = <-ccb.resultCh.Get():
ccb.resultCh.Load()
case <-ccb.closed.Done():
// Return early if the balancer wrapper is closed while we are waiting for
// the underlying balancer to process a ClientConnState update.
return nil
}
// If the returned error is nil, attempting to type assert to error leads to
// panic. So, this needs to handled separately.
if res == nil {
return nil
}
return res.(error)
}
// handleClientConnStateChange handles a ClientConnState update from the update
// channel and invokes the appropriate method on the underlying balancer.
//
// If the addresses specified in the update contain addresses of type "grpclb"
// and the selected LB policy is not "grpclb", these addresses will be filtered
// out and ccs will be modified with the updated address list.
func (ccb *ccBalancerWrapper) handleClientConnStateChange(ccs *balancer.ClientConnState) {
if ccb.curBalancerName != grpclbName {
// Filter any grpclb addresses since we don't have the grpclb balancer.
var addrs []resolver.Address
for _, addr := range ccs.ResolverState.Addresses {
if addr.Type == resolver.GRPCLB {
continue
ccb.mu.Lock()
errCh := make(chan error, 1)
// Here and everywhere else where Schedule() is called, it is done with the
// lock held. But the lock guards only the scheduling part. The actual
// callback is called asynchronously without the lock being held.
ok := ccb.serializer.Schedule(func(_ context.Context) {
// If the addresses specified in the update contain addresses of type
// "grpclb" and the selected LB policy is not "grpclb", these addresses
// will be filtered out and ccs will be modified with the updated
// address list.
if ccb.curBalancerName != grpclbName {
var addrs []resolver.Address
for _, addr := range ccs.ResolverState.Addresses {
if addr.Type == resolver.GRPCLB {
continue
}
addrs = append(addrs, addr)
}
addrs = append(addrs, addr)
ccs.ResolverState.Addresses = addrs
}
ccs.ResolverState.Addresses = addrs
errCh <- ccb.balancer.UpdateClientConnState(*ccs)
})
if !ok {
// If we are unable to schedule a function with the serializer, it
// indicates that it has been closed. A serializer is only closed when
// the wrapper is closed or is in idle.
ccb.mu.Unlock()
return fmt.Errorf("grpc: cannot send state update to a closed or idle balancer")
}
ccb.resultCh.Put(ccb.balancer.UpdateClientConnState(*ccs))
ccb.mu.Unlock()
// We get here only if the above call to Schedule succeeds, in which case it
// is guaranteed that the scheduled function will run. Therefore it is safe
// to block on this channel.
err := <-errCh
if logger.V(2) && err != nil {
logger.Infof("error from balancer.UpdateClientConnState: %v", err)
}
return err
}
// updateSubConnState is invoked by grpc to push a subConn state update to the
// underlying balancer.
func (ccb *ccBalancerWrapper) updateSubConnState(sc balancer.SubConn, s connectivity.State, err error) {
// When updating addresses for a SubConn, if the address in use is not in
// the new addresses, the old ac will be tearDown() and a new ac will be
// created. tearDown() generates a state change with Shutdown state, we
// don't want the balancer to receive this state change. So before
// tearDown() on the old ac, ac.acbw (acWrapper) will be set to nil, and
// this function will be called with (nil, Shutdown). We don't need to call
// balancer method in this case.
if sc == nil {
return
}
ccb.updateCh.Put(&scStateUpdate{
sc: sc,
state: s,
err: err,
ccb.mu.Lock()
ccb.serializer.Schedule(func(_ context.Context) {
ccb.balancer.UpdateSubConnState(sc, balancer.SubConnState{ConnectivityState: s, ConnectionError: err})
})
}
// handleSubConnStateChange handles a SubConnState update from the update
// channel and invokes the appropriate method on the underlying balancer.
func (ccb *ccBalancerWrapper) handleSubConnStateChange(update *scStateUpdate) {
ccb.balancer.UpdateSubConnState(update.sc, balancer.SubConnState{ConnectivityState: update.state, ConnectionError: update.err})
}
func (ccb *ccBalancerWrapper) exitIdle() {
ccb.updateCh.Put(&exitIdleUpdate{})
}
func (ccb *ccBalancerWrapper) handleExitIdle() {
if ccb.cc.GetState() != connectivity.Idle {
return
}
ccb.balancer.ExitIdle()
ccb.mu.Unlock()
}
func (ccb *ccBalancerWrapper) resolverError(err error) {
ccb.updateCh.Put(&resolverErrorUpdate{err: err})
}
func (ccb *ccBalancerWrapper) handleResolverError(err error) {
ccb.balancer.ResolverError(err)
ccb.mu.Lock()
ccb.serializer.Schedule(func(_ context.Context) {
ccb.balancer.ResolverError(err)
})
ccb.mu.Unlock()
}
// switchTo is invoked by grpc to instruct the balancer wrapper to switch to the
@ -248,24 +163,27 @@ func (ccb *ccBalancerWrapper) handleResolverError(err error) {
// the ccBalancerWrapper keeps track of the current LB policy name, and skips
// the graceful balancer switching process if the name does not change.
func (ccb *ccBalancerWrapper) switchTo(name string) {
ccb.updateCh.Put(&switchToUpdate{name: name})
ccb.mu.Lock()
ccb.serializer.Schedule(func(_ context.Context) {
// TODO: Other languages use case-sensitive balancer registries. We should
// switch as well. See: https://github.com/grpc/grpc-go/issues/5288.
if strings.EqualFold(ccb.curBalancerName, name) {
return
}
ccb.buildLoadBalancingPolicy(name)
})
ccb.mu.Unlock()
}
// handleSwitchTo handles a balancer switch update from the update channel. It
// calls the SwitchTo() method on the gracefulswitch.Balancer with a
// balancer.Builder corresponding to name. If no balancer.Builder is registered
// for the given name, it uses the default LB policy which is "pick_first".
func (ccb *ccBalancerWrapper) handleSwitchTo(name string) {
// TODO: Other languages use case-insensitive balancer registries. We should
// switch as well. See: https://github.com/grpc/grpc-go/issues/5288.
if strings.EqualFold(ccb.curBalancerName, name) {
return
}
// TODO: Ensure that name is a registered LB policy when we get here.
// We currently only validate the `loadBalancingConfig` field. We need to do
// the same for the `loadBalancingPolicy` field and reject the service config
// if the specified policy is not registered.
// buildLoadBalancingPolicy performs the following:
// - retrieve a balancer builder for the given name. Use the default LB
// policy, pick_first, if no LB policy with name is found in the registry.
// - instruct the gracefulswitch balancer to switch to the above builder. This
// will actually build the new balancer.
// - update the `curBalancerName` field
//
// Must be called from a serializer callback.
func (ccb *ccBalancerWrapper) buildLoadBalancingPolicy(name string) {
builder := balancer.Get(name)
if builder == nil {
channelz.Warningf(logger, ccb.cc.channelzID, "Channel switches to new LB policy %q, since the specified LB policy %q was not registered", PickFirstBalancerName, name)
@ -281,26 +199,114 @@ func (ccb *ccBalancerWrapper) handleSwitchTo(name string) {
ccb.curBalancerName = builder.Name()
}
// handleRemoveSucConn handles a request from the underlying balancer to remove
// a subConn.
//
// See comments in RemoveSubConn() for more details.
func (ccb *ccBalancerWrapper) handleRemoveSubConn(acbw *acBalancerWrapper) {
ccb.cc.removeAddrConn(acbw.getAddrConn(), errConnDrain)
}
func (ccb *ccBalancerWrapper) close() {
ccb.closed.Fire()
<-ccb.done.Done()
channelz.Info(logger, ccb.cc.channelzID, "ccBalancerWrapper: closing")
ccb.closeBalancer(ccbModeClosed)
}
func (ccb *ccBalancerWrapper) handleClose() {
ccb.balancer.Close()
ccb.done.Fire()
// enterIdleMode is invoked by grpc when the channel enters idle mode upon
// expiry of idle_timeout. This call blocks until the balancer is closed.
func (ccb *ccBalancerWrapper) enterIdleMode() {
channelz.Info(logger, ccb.cc.channelzID, "ccBalancerWrapper: entering idle mode")
ccb.closeBalancer(ccbModeIdle)
}
// closeBalancer is invoked when the channel is being closed or when it enters
// idle mode upon expiry of idle_timeout.
func (ccb *ccBalancerWrapper) closeBalancer(m ccbMode) {
ccb.mu.Lock()
if ccb.mode == ccbModeClosed || ccb.mode == ccbModeIdle {
ccb.mu.Unlock()
return
}
ccb.mode = m
done := ccb.serializer.Done
b := ccb.balancer
ok := ccb.serializer.Schedule(func(_ context.Context) {
// Close the serializer to ensure that no more calls from gRPC are sent
// to the balancer.
ccb.serializerCancel()
// Empty the current balancer name because we don't have a balancer
// anymore and also so that we act on the next call to switchTo by
// creating a new balancer specified by the new resolver.
ccb.curBalancerName = ""
})
if !ok {
ccb.mu.Unlock()
return
}
ccb.mu.Unlock()
// Give enqueued callbacks a chance to finish.
<-done
// Spawn a goroutine to close the balancer (since it may block trying to
// cleanup all allocated resources) and return early.
go b.Close()
}
// exitIdleMode is invoked by grpc when the channel exits idle mode either
// because of an RPC or because of an invocation of the Connect() API. This
// recreates the balancer that was closed previously when entering idle mode.
//
// If the channel is not in idle mode, we know for a fact that we are here as a
// result of the user calling the Connect() method on the ClientConn. In this
// case, we can simply forward the call to the underlying balancer, instructing
// it to reconnect to the backends.
func (ccb *ccBalancerWrapper) exitIdleMode() {
ccb.mu.Lock()
if ccb.mode == ccbModeClosed {
// Request to exit idle is a no-op when wrapper is already closed.
ccb.mu.Unlock()
return
}
if ccb.mode == ccbModeIdle {
// Recreate the serializer which was closed when we entered idle.
ctx, cancel := context.WithCancel(context.Background())
ccb.serializer = grpcsync.NewCallbackSerializer(ctx)
ccb.serializerCancel = cancel
}
// The ClientConn guarantees that mutual exclusion between close() and
// exitIdleMode(), and since we just created a new serializer, we can be
// sure that the below function will be scheduled.
done := make(chan struct{})
ccb.serializer.Schedule(func(_ context.Context) {
defer close(done)
ccb.mu.Lock()
defer ccb.mu.Unlock()
if ccb.mode != ccbModeIdle {
ccb.balancer.ExitIdle()
return
}
// Gracefulswitch balancer does not support a switchTo operation after
// being closed. Hence we need to create a new one here.
ccb.balancer = gracefulswitch.NewBalancer(ccb, ccb.opts)
ccb.mode = ccbModeActive
channelz.Info(logger, ccb.cc.channelzID, "ccBalancerWrapper: exiting idle mode")
})
ccb.mu.Unlock()
<-done
}
func (ccb *ccBalancerWrapper) isIdleOrClosed() bool {
ccb.mu.Lock()
defer ccb.mu.Unlock()
return ccb.mode == ccbModeIdle || ccb.mode == ccbModeClosed
}
func (ccb *ccBalancerWrapper) NewSubConn(addrs []resolver.Address, opts balancer.NewSubConnOptions) (balancer.SubConn, error) {
if len(addrs) <= 0 {
if ccb.isIdleOrClosed() {
return nil, fmt.Errorf("grpc: cannot create SubConn when balancer is closed or idle")
}
if len(addrs) == 0 {
return nil, fmt.Errorf("grpc: cannot create SubConn with empty address list")
}
ac, err := ccb.cc.newAddrConn(addrs, opts)
@ -309,31 +315,35 @@ func (ccb *ccBalancerWrapper) NewSubConn(addrs []resolver.Address, opts balancer
return nil, err
}
acbw := &acBalancerWrapper{ac: ac, producers: make(map[balancer.ProducerBuilder]*refCountedProducer)}
acbw.ac.mu.Lock()
ac.acbw = acbw
acbw.ac.mu.Unlock()
return acbw, nil
}
func (ccb *ccBalancerWrapper) RemoveSubConn(sc balancer.SubConn) {
// Before we switched the ccBalancerWrapper to use gracefulswitch.Balancer, it
// was required to handle the RemoveSubConn() method asynchronously by pushing
// the update onto the update channel. This was done to avoid a deadlock as
// switchBalancer() was holding cc.mu when calling Close() on the old
// balancer, which would in turn call RemoveSubConn().
//
// With the use of gracefulswitch.Balancer in ccBalancerWrapper, handling this
// asynchronously is probably not required anymore since the switchTo() method
// handles the balancer switch by pushing the update onto the channel.
// TODO(easwars): Handle this inline.
if ccb.isIdleOrClosed() {
// It it safe to ignore this call when the balancer is closed or in idle
// because the ClientConn takes care of closing the connections.
//
// Not returning early from here when the balancer is closed or in idle
// leads to a deadlock though, because of the following sequence of
// calls when holding cc.mu:
// cc.exitIdleMode --> ccb.enterIdleMode --> gsw.Close -->
// ccb.RemoveAddrConn --> cc.removeAddrConn
return
}
acbw, ok := sc.(*acBalancerWrapper)
if !ok {
return
}
ccb.updateCh.Put(&subConnUpdate{acbw: acbw})
ccb.cc.removeAddrConn(acbw.ac, errConnDrain)
}
func (ccb *ccBalancerWrapper) UpdateAddresses(sc balancer.SubConn, addrs []resolver.Address) {
if ccb.isIdleOrClosed() {
return
}
acbw, ok := sc.(*acBalancerWrapper)
if !ok {
return
@ -342,6 +352,10 @@ func (ccb *ccBalancerWrapper) UpdateAddresses(sc balancer.SubConn, addrs []resol
}
func (ccb *ccBalancerWrapper) UpdateState(s balancer.State) {
if ccb.isIdleOrClosed() {
return
}
// 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
@ -352,6 +366,10 @@ func (ccb *ccBalancerWrapper) UpdateState(s balancer.State) {
}
func (ccb *ccBalancerWrapper) ResolveNow(o resolver.ResolveNowOptions) {
if ccb.isIdleOrClosed() {
return
}
ccb.cc.resolveNow(o)
}
@ -362,71 +380,31 @@ func (ccb *ccBalancerWrapper) Target() string {
// acBalancerWrapper is a wrapper on top of ac for balancers.
// It implements balancer.SubConn interface.
type acBalancerWrapper struct {
ac *addrConn // read-only
mu sync.Mutex
ac *addrConn
producers map[balancer.ProducerBuilder]*refCountedProducer
}
func (acbw *acBalancerWrapper) String() string {
return fmt.Sprintf("SubConn(id:%d)", acbw.ac.channelzID.Int())
}
func (acbw *acBalancerWrapper) UpdateAddresses(addrs []resolver.Address) {
acbw.mu.Lock()
defer acbw.mu.Unlock()
if len(addrs) <= 0 {
acbw.ac.cc.removeAddrConn(acbw.ac, errConnDrain)
return
}
if !acbw.ac.tryUpdateAddrs(addrs) {
cc := acbw.ac.cc
opts := acbw.ac.scopts
acbw.ac.mu.Lock()
// Set old ac.acbw to nil so the Shutdown state update will be ignored
// by balancer.
//
// TODO(bar) the state transition could be wrong when tearDown() old ac
// and creating new ac, fix the transition.
acbw.ac.acbw = nil
acbw.ac.mu.Unlock()
acState := acbw.ac.getState()
acbw.ac.cc.removeAddrConn(acbw.ac, errConnDrain)
if acState == connectivity.Shutdown {
return
}
newAC, err := cc.newAddrConn(addrs, opts)
if err != nil {
channelz.Warningf(logger, acbw.ac.channelzID, "acBalancerWrapper: UpdateAddresses: failed to newAddrConn: %v", err)
return
}
acbw.ac = newAC
newAC.mu.Lock()
newAC.acbw = acbw
newAC.mu.Unlock()
if acState != connectivity.Idle {
go newAC.connect()
}
}
acbw.ac.updateAddrs(addrs)
}
func (acbw *acBalancerWrapper) Connect() {
acbw.mu.Lock()
defer acbw.mu.Unlock()
go acbw.ac.connect()
}
func (acbw *acBalancerWrapper) getAddrConn() *addrConn {
acbw.mu.Lock()
defer acbw.mu.Unlock()
return acbw.ac
}
var errSubConnNotReady = status.Error(codes.Unavailable, "SubConn not currently connected")
// NewStream begins a streaming RPC on the addrConn. If the addrConn is not
// ready, returns errSubConnNotReady.
// 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, errSubConnNotReady
transport, err := acbw.ac.getTransport(ctx)
if err != nil {
return nil, err
}
return newNonRetryClientStream(ctx, desc, method, transport, acbw.ac, opts...)
}

5
vendor/google.golang.org/grpc/call.go generated vendored
View File

@ -27,6 +27,11 @@ import (
//
// All errors returned by Invoke are compatible with the status package.
func (cc *ClientConn) Invoke(ctx context.Context, method string, args, reply interface{}, opts ...CallOption) error {
if err := cc.idlenessMgr.onCallBegin(); err != nil {
return err
}
defer cc.idlenessMgr.onCallEnd()
// 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)

611
vendor/google.golang.org/grpc/clientconn.go generated vendored
View File

@ -24,7 +24,6 @@ import (
"fmt"
"math"
"net/url"
"reflect"
"strings"
"sync"
"sync/atomic"
@ -69,6 +68,9 @@ var (
errConnDrain = errors.New("grpc: the connection is drained")
// errConnClosing indicates that the connection is closing.
errConnClosing = errors.New("grpc: the connection is closing")
// errConnIdling indicates the the connection is being closed as the channel
// is moving to an idle mode due to inactivity.
errConnIdling = errors.New("grpc: the connection is closing due to channel idleness")
// invalidDefaultServiceConfigErrPrefix is used to prefix the json parsing error for the default
// service config.
invalidDefaultServiceConfigErrPrefix = "grpc: the provided default service config is invalid"
@ -134,17 +136,29 @@ func (dcs *defaultConfigSelector) SelectConfig(rpcInfo iresolver.RPCInfo) (*ires
// e.g. to use dns resolver, a "dns:///" prefix should be applied to the target.
func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *ClientConn, err error) {
cc := &ClientConn{
target: target,
csMgr: &connectivityStateManager{},
conns: make(map[*addrConn]struct{}),
dopts: defaultDialOptions(),
blockingpicker: newPickerWrapper(),
czData: new(channelzData),
firstResolveEvent: grpcsync.NewEvent(),
target: target,
csMgr: &connectivityStateManager{},
conns: make(map[*addrConn]struct{}),
dopts: defaultDialOptions(),
czData: new(channelzData),
}
// We start the channel off in idle mode, but kick it out of idle at the end
// of this method, instead of waiting for the first RPC. Other gRPC
// implementations do wait for the first RPC to kick the channel out of
// idle. But doing so would be a major behavior change for our users who are
// used to seeing the channel active after Dial.
//
// Taking this approach of kicking it out of idle at the end of this method
// allows us to share the code between channel creation and exiting idle
// mode. This will also make it easy for us to switch to starting the
// channel off in idle, if at all we ever get to do that.
cc.idlenessState = ccIdlenessStateIdle
cc.retryThrottler.Store((*retryThrottler)(nil))
cc.safeConfigSelector.UpdateConfigSelector(&defaultConfigSelector{nil})
cc.ctx, cc.cancel = context.WithCancel(context.Background())
cc.exitIdleCond = sync.NewCond(&cc.mu)
disableGlobalOpts := false
for _, opt := range opts {
@ -173,40 +187,11 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
}
}()
pid := cc.dopts.channelzParentID
cc.channelzID = channelz.RegisterChannel(&channelzChannel{cc}, pid, target)
ted := &channelz.TraceEventDesc{
Desc: "Channel created",
Severity: channelz.CtInfo,
}
if cc.dopts.channelzParentID != nil {
ted.Parent = &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Nested Channel(id:%d) created", cc.channelzID.Int()),
Severity: channelz.CtInfo,
}
}
channelz.AddTraceEvent(logger, cc.channelzID, 1, ted)
cc.csMgr.channelzID = cc.channelzID
// Register ClientConn with channelz.
cc.channelzRegistration(target)
if cc.dopts.copts.TransportCredentials == nil && cc.dopts.copts.CredsBundle == nil {
return nil, errNoTransportSecurity
}
if cc.dopts.copts.TransportCredentials != nil && cc.dopts.copts.CredsBundle != nil {
return nil, errTransportCredsAndBundle
}
if cc.dopts.copts.CredsBundle != nil && cc.dopts.copts.CredsBundle.TransportCredentials() == nil {
return nil, errNoTransportCredsInBundle
}
transportCreds := cc.dopts.copts.TransportCredentials
if transportCreds == nil {
transportCreds = cc.dopts.copts.CredsBundle.TransportCredentials()
}
if transportCreds.Info().SecurityProtocol == "insecure" {
for _, cd := range cc.dopts.copts.PerRPCCredentials {
if cd.RequireTransportSecurity() {
return nil, errTransportCredentialsMissing
}
}
if err := cc.validateTransportCredentials(); err != nil {
return nil, err
}
if cc.dopts.defaultServiceConfigRawJSON != nil {
@ -249,15 +234,12 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
}
// Determine the resolver to use.
resolverBuilder, err := cc.parseTargetAndFindResolver()
if err != nil {
if err := cc.parseTargetAndFindResolver(); err != nil {
return nil, err
}
cc.authority, err = determineAuthority(cc.parsedTarget.Endpoint(), cc.target, cc.dopts)
if err != nil {
if err = cc.determineAuthority(); err != nil {
return nil, err
}
channelz.Infof(logger, cc.channelzID, "Channel authority set to %q", cc.authority)
if cc.dopts.scChan != nil {
// Blocking wait for the initial service config.
@ -275,57 +257,224 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
go cc.scWatcher()
}
// This creates the name resolver, load balancer, blocking picker etc.
if err := cc.exitIdleMode(); err != nil {
return nil, err
}
// Configure idleness support with configured idle timeout or default idle
// timeout duration. Idleness can be explicitly disabled by the user, by
// setting the dial option to 0.
cc.idlenessMgr = newIdlenessManager(cc, cc.dopts.idleTimeout)
// Return early for non-blocking dials.
if !cc.dopts.block {
return cc, nil
}
// A blocking dial blocks until the clientConn is ready.
for {
s := cc.GetState()
if s == connectivity.Idle {
cc.Connect()
}
if s == connectivity.Ready {
return cc, nil
} else if cc.dopts.copts.FailOnNonTempDialError && s == connectivity.TransientFailure {
if err = cc.connectionError(); err != nil {
terr, ok := err.(interface {
Temporary() bool
})
if ok && !terr.Temporary() {
return nil, err
}
}
}
if !cc.WaitForStateChange(ctx, s) {
// ctx got timeout or canceled.
if err = cc.connectionError(); err != nil && cc.dopts.returnLastError {
return nil, err
}
return nil, ctx.Err()
}
}
}
// addTraceEvent is a helper method to add a trace event on the channel. If the
// channel is a nested one, the same event is also added on the parent channel.
func (cc *ClientConn) addTraceEvent(msg string) {
ted := &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Channel %s", msg),
Severity: channelz.CtInfo,
}
if cc.dopts.channelzParentID != nil {
ted.Parent = &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Nested channel(id:%d) %s", cc.channelzID.Int(), msg),
Severity: channelz.CtInfo,
}
}
channelz.AddTraceEvent(logger, cc.channelzID, 0, ted)
}
// exitIdleMode moves the channel out of idle mode by recreating the name
// resolver and load balancer.
func (cc *ClientConn) exitIdleMode() error {
cc.mu.Lock()
if cc.conns == nil {
cc.mu.Unlock()
return errConnClosing
}
if cc.idlenessState != ccIdlenessStateIdle {
cc.mu.Unlock()
logger.Info("ClientConn asked to exit idle mode when not in idle mode")
return nil
}
defer func() {
// When Close() and exitIdleMode() race against each other, one of the
// following two can happen:
// - Close() wins the race and runs first. exitIdleMode() runs after, and
// sees that the ClientConn is already closed and hence returns early.
// - exitIdleMode() wins the race and runs first and recreates the balancer
// and releases the lock before recreating the resolver. If Close() runs
// in this window, it will wait for exitIdleMode to complete.
//
// We achieve this synchronization using the below condition variable.
cc.mu.Lock()
cc.idlenessState = ccIdlenessStateActive
cc.exitIdleCond.Signal()
cc.mu.Unlock()
}()
cc.idlenessState = ccIdlenessStateExitingIdle
exitedIdle := false
if cc.blockingpicker == nil {
cc.blockingpicker = newPickerWrapper()
} else {
cc.blockingpicker.exitIdleMode()
exitedIdle = true
}
var credsClone credentials.TransportCredentials
if creds := cc.dopts.copts.TransportCredentials; creds != nil {
credsClone = creds.Clone()
}
cc.balancerWrapper = newCCBalancerWrapper(cc, balancer.BuildOptions{
DialCreds: credsClone,
CredsBundle: cc.dopts.copts.CredsBundle,
Dialer: cc.dopts.copts.Dialer,
Authority: cc.authority,
CustomUserAgent: cc.dopts.copts.UserAgent,
ChannelzParentID: cc.channelzID,
Target: cc.parsedTarget,
})
// Build the resolver.
rWrapper, err := newCCResolverWrapper(cc, resolverBuilder)
if err != nil {
return nil, fmt.Errorf("failed to build resolver: %v", err)
if cc.balancerWrapper == nil {
cc.balancerWrapper = newCCBalancerWrapper(cc, balancer.BuildOptions{
DialCreds: credsClone,
CredsBundle: cc.dopts.copts.CredsBundle,
Dialer: cc.dopts.copts.Dialer,
Authority: cc.authority,
CustomUserAgent: cc.dopts.copts.UserAgent,
ChannelzParentID: cc.channelzID,
Target: cc.parsedTarget,
})
} else {
cc.balancerWrapper.exitIdleMode()
}
cc.mu.Lock()
cc.resolverWrapper = rWrapper
cc.firstResolveEvent = grpcsync.NewEvent()
cc.mu.Unlock()
// A blocking dial blocks until the clientConn is ready.
if cc.dopts.block {
for {
cc.Connect()
s := cc.GetState()
if s == connectivity.Ready {
break
} else if cc.dopts.copts.FailOnNonTempDialError && s == connectivity.TransientFailure {
if err = cc.connectionError(); err != nil {
terr, ok := err.(interface {
Temporary() bool
})
if ok && !terr.Temporary() {
return nil, err
}
}
}
if !cc.WaitForStateChange(ctx, s) {
// ctx got timeout or canceled.
if err = cc.connectionError(); err != nil && cc.dopts.returnLastError {
return nil, err
}
return nil, ctx.Err()
// This needs to be called without cc.mu because this builds a new resolver
// which might update state or report error inline which needs to be handled
// by cc.updateResolverState() which also grabs cc.mu.
if err := cc.initResolverWrapper(credsClone); err != nil {
return err
}
if exitedIdle {
cc.addTraceEvent("exiting idle mode")
}
return nil
}
// enterIdleMode puts the channel in idle mode, and as part of it shuts down the
// name resolver, load balancer and any subchannels.
func (cc *ClientConn) enterIdleMode() error {
cc.mu.Lock()
if cc.conns == nil {
cc.mu.Unlock()
return ErrClientConnClosing
}
if cc.idlenessState != ccIdlenessStateActive {
logger.Error("ClientConn asked to enter idle mode when not active")
return nil
}
// cc.conns == nil is a proxy for the ClientConn being closed. So, instead
// of setting it to nil here, we recreate the map. This also means that we
// don't have to do this when exiting idle mode.
conns := cc.conns
cc.conns = make(map[*addrConn]struct{})
// TODO: Currently, we close the resolver wrapper upon entering idle mode
// and create a new one upon exiting idle mode. This means that the
// `cc.resolverWrapper` field would be overwritten everytime we exit idle
// mode. While this means that we need to hold `cc.mu` when accessing
// `cc.resolverWrapper`, it makes the code simpler in the wrapper. We should
// try to do the same for the balancer and picker wrappers too.
cc.resolverWrapper.close()
cc.blockingpicker.enterIdleMode()
cc.balancerWrapper.enterIdleMode()
cc.csMgr.updateState(connectivity.Idle)
cc.idlenessState = ccIdlenessStateIdle
cc.mu.Unlock()
go func() {
cc.addTraceEvent("entering idle mode")
for ac := range conns {
ac.tearDown(errConnIdling)
}
}()
return nil
}
// validateTransportCredentials performs a series of checks on the configured
// transport credentials. It returns a non-nil error if any of these conditions
// are met:
// - no transport creds and no creds bundle is configured
// - both transport creds and creds bundle are configured
// - creds bundle is configured, but it lacks a transport credentials
// - insecure transport creds configured alongside call creds that require
// transport level security
//
// If none of the above conditions are met, the configured credentials are
// deemed valid and a nil error is returned.
func (cc *ClientConn) validateTransportCredentials() error {
if cc.dopts.copts.TransportCredentials == nil && cc.dopts.copts.CredsBundle == nil {
return errNoTransportSecurity
}
if cc.dopts.copts.TransportCredentials != nil && cc.dopts.copts.CredsBundle != nil {
return errTransportCredsAndBundle
}
if cc.dopts.copts.CredsBundle != nil && cc.dopts.copts.CredsBundle.TransportCredentials() == nil {
return errNoTransportCredsInBundle
}
transportCreds := cc.dopts.copts.TransportCredentials
if transportCreds == nil {
transportCreds = cc.dopts.copts.CredsBundle.TransportCredentials()
}
if transportCreds.Info().SecurityProtocol == "insecure" {
for _, cd := range cc.dopts.copts.PerRPCCredentials {
if cd.RequireTransportSecurity() {
return errTransportCredentialsMissing
}
}
}
return nil
}
return cc, nil
// channelzRegistration registers the newly created ClientConn with channelz and
// stores the returned identifier in `cc.channelzID` and `cc.csMgr.channelzID`.
// A channelz trace event is emitted for ClientConn creation. If the newly
// created ClientConn is a nested one, i.e a valid parent ClientConn ID is
// specified via a dial option, the trace event is also added to the parent.
//
// Doesn't grab cc.mu as this method is expected to be called only at Dial time.
func (cc *ClientConn) channelzRegistration(target string) {
cc.channelzID = channelz.RegisterChannel(&channelzChannel{cc}, cc.dopts.channelzParentID, target)
cc.addTraceEvent("created")
cc.csMgr.channelzID = cc.channelzID
}
// chainUnaryClientInterceptors chains all unary client interceptors into one.
@ -471,7 +620,9 @@ type ClientConn struct {
authority string // See determineAuthority().
dopts dialOptions // Default and user specified dial options.
channelzID *channelz.Identifier // Channelz identifier for the channel.
resolverBuilder resolver.Builder // See parseTargetAndFindResolver().
balancerWrapper *ccBalancerWrapper // Uses gracefulswitch.balancer underneath.
idlenessMgr idlenessManager
// The following provide their own synchronization, and therefore don't
// require cc.mu to be held to access them.
@ -492,11 +643,31 @@ type ClientConn struct {
sc *ServiceConfig // Latest service config received from the resolver.
conns map[*addrConn]struct{} // Set to nil on close.
mkp keepalive.ClientParameters // May be updated upon receipt of a GoAway.
idlenessState ccIdlenessState // Tracks idleness state of the channel.
exitIdleCond *sync.Cond // Signalled when channel exits idle.
lceMu sync.Mutex // protects lastConnectionError
lastConnectionError error
}
// ccIdlenessState tracks the idleness state of the channel.
//
// Channels start off in `active` and move to `idle` after a period of
// inactivity. When moving back to `active` upon an incoming RPC, they
// transition through `exiting_idle`. This state is useful for synchronization
// with Close().
//
// This state tracking is mostly for self-protection. The idlenessManager is
// expected to keep track of the state as well, and is expected not to call into
// the ClientConn unnecessarily.
type ccIdlenessState int8
const (
ccIdlenessStateActive ccIdlenessState = iota
ccIdlenessStateIdle
ccIdlenessStateExitingIdle
)
// WaitForStateChange waits until the connectivity.State of ClientConn changes from sourceState or
// ctx expires. A true value is returned in former case and false in latter.
//
@ -536,7 +707,10 @@ func (cc *ClientConn) GetState() connectivity.State {
// Notice: This API is EXPERIMENTAL and may be changed or removed in a later
// release.
func (cc *ClientConn) Connect() {
cc.balancerWrapper.exitIdle()
cc.exitIdleMode()
// If the ClientConn was not in idle mode, we need to call ExitIdle on the
// LB policy so that connections can be created.
cc.balancerWrapper.exitIdleMode()
}
func (cc *ClientConn) scWatcher() {
@ -705,6 +879,7 @@ func (cc *ClientConn) newAddrConn(addrs []resolver.Address, opts balancer.NewSub
dopts: cc.dopts,
czData: new(channelzData),
resetBackoff: make(chan struct{}),
stateChan: make(chan struct{}),
}
ac.ctx, ac.cancel = context.WithCancel(cc.ctx)
// Track ac in cc. This needs to be done before any getTransport(...) is called.
@ -798,9 +973,6 @@ func (ac *addrConn) connect() error {
ac.mu.Unlock()
return nil
}
// Update connectivity state within the lock to prevent subsequent or
// concurrent calls from resetting the transport more than once.
ac.updateConnectivityState(connectivity.Connecting, nil)
ac.mu.Unlock()
ac.resetTransport()
@ -819,58 +991,60 @@ func equalAddresses(a, b []resolver.Address) bool {
return true
}
// tryUpdateAddrs tries to update ac.addrs with the new addresses list.
//
// If ac is TransientFailure, it updates ac.addrs and returns true. The updated
// addresses will be picked up by retry in the next iteration after backoff.
//
// If ac is Shutdown or Idle, it updates ac.addrs and returns true.
//
// If the addresses is the same as the old list, it does nothing and returns
// true.
//
// If ac is Connecting, it returns false. The caller should tear down the ac and
// create a new one. Note that the backoff will be reset when this happens.
//
// If ac is Ready, it checks whether current connected address of ac is in the
// new addrs list.
// - If true, it updates ac.addrs and returns true. The ac will keep using
// the existing connection.
// - If false, it does nothing and returns false.
func (ac *addrConn) tryUpdateAddrs(addrs []resolver.Address) bool {
// updateAddrs updates ac.addrs with the new addresses list and handles active
// connections or connection attempts.
func (ac *addrConn) updateAddrs(addrs []resolver.Address) {
ac.mu.Lock()
defer ac.mu.Unlock()
channelz.Infof(logger, ac.channelzID, "addrConn: tryUpdateAddrs curAddr: %v, addrs: %v", ac.curAddr, addrs)
channelz.Infof(logger, ac.channelzID, "addrConn: updateAddrs curAddr: %v, addrs: %v", ac.curAddr, addrs)
if equalAddresses(ac.addrs, addrs) {
ac.mu.Unlock()
return
}
ac.addrs = addrs
if ac.state == connectivity.Shutdown ||
ac.state == connectivity.TransientFailure ||
ac.state == connectivity.Idle {
ac.addrs = addrs
return true
// We were not connecting, so do nothing but update the addresses.
ac.mu.Unlock()
return
}
if equalAddresses(ac.addrs, addrs) {
return true
}
if ac.state == connectivity.Connecting {
return false
}
// ac.state is Ready, try to find the connected address.
var curAddrFound bool
for _, a := range addrs {
a.ServerName = ac.cc.getServerName(a)
if reflect.DeepEqual(ac.curAddr, a) {
curAddrFound = true
break
if ac.state == connectivity.Ready {
// Try to find the connected address.
for _, a := range addrs {
a.ServerName = ac.cc.getServerName(a)
if a.Equal(ac.curAddr) {
// We are connected to a valid address, so do nothing but
// update the addresses.
ac.mu.Unlock()
return
}
}
}
channelz.Infof(logger, ac.channelzID, "addrConn: tryUpdateAddrs curAddrFound: %v", curAddrFound)
if curAddrFound {
ac.addrs = addrs
// We are either connected to the wrong address or currently connecting.
// Stop the current iteration and restart.
ac.cancel()
ac.ctx, ac.cancel = context.WithCancel(ac.cc.ctx)
// We have to defer here because GracefulClose => Close => onClose, which
// requires locking ac.mu.
defer ac.transport.GracefulClose()
ac.transport = nil
if len(addrs) == 0 {
ac.updateConnectivityState(connectivity.Idle, nil)
}
return curAddrFound
ac.mu.Unlock()
// Since we were connecting/connected, we should start a new connection
// attempt.
go ac.resetTransport()
}
// getServerName determines the serverName to be used in the connection
@ -1023,39 +1197,40 @@ func (cc *ClientConn) Close() error {
cc.mu.Unlock()
return ErrClientConnClosing
}
for cc.idlenessState == ccIdlenessStateExitingIdle {
cc.exitIdleCond.Wait()
}
conns := cc.conns
cc.conns = nil
cc.csMgr.updateState(connectivity.Shutdown)
pWrapper := cc.blockingpicker
rWrapper := cc.resolverWrapper
cc.resolverWrapper = nil
bWrapper := cc.balancerWrapper
idlenessMgr := cc.idlenessMgr
cc.mu.Unlock()
// The order of closing matters here since the balancer wrapper assumes the
// picker is closed before it is closed.
cc.blockingpicker.close()
if pWrapper != nil {
pWrapper.close()
}
if bWrapper != nil {
bWrapper.close()
}
if rWrapper != nil {
rWrapper.close()
}
if idlenessMgr != nil {
idlenessMgr.close()
}
for ac := range conns {
ac.tearDown(ErrClientConnClosing)
}
ted := &channelz.TraceEventDesc{
Desc: "Channel deleted",
Severity: channelz.CtInfo,
}
if cc.dopts.channelzParentID != nil {
ted.Parent = &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Nested channel(id:%d) deleted", cc.channelzID.Int()),
Severity: channelz.CtInfo,
}
}
channelz.AddTraceEvent(logger, cc.channelzID, 0, ted)
cc.addTraceEvent("deleted")
// TraceEvent needs to be called before RemoveEntry, as TraceEvent may add
// trace reference to the entity being deleted, and thus prevent it from being
// deleted right away.
@ -1085,7 +1260,8 @@ type addrConn struct {
addrs []resolver.Address // All addresses that the resolver resolved to.
// Use updateConnectivityState for updating addrConn's connectivity state.
state connectivity.State
state connectivity.State
stateChan chan struct{} // closed and recreated on every state change.
backoffIdx int // Needs to be stateful for resetConnectBackoff.
resetBackoff chan struct{}
@ -1099,6 +1275,9 @@ func (ac *addrConn) updateConnectivityState(s connectivity.State, lastErr error)
if ac.state == s {
return
}
// When changing states, reset the state change channel.
close(ac.stateChan)
ac.stateChan = make(chan struct{})
ac.state = s
if lastErr == nil {
channelz.Infof(logger, ac.channelzID, "Subchannel Connectivity change to %v", s)
@ -1124,7 +1303,8 @@ func (ac *addrConn) adjustParams(r transport.GoAwayReason) {
func (ac *addrConn) resetTransport() {
ac.mu.Lock()
if ac.state == connectivity.Shutdown {
acCtx := ac.ctx
if acCtx.Err() != nil {
ac.mu.Unlock()
return
}
@ -1152,15 +1332,14 @@ func (ac *addrConn) resetTransport() {
ac.updateConnectivityState(connectivity.Connecting, nil)
ac.mu.Unlock()
if err := ac.tryAllAddrs(addrs, connectDeadline); err != nil {
if err := ac.tryAllAddrs(acCtx, addrs, connectDeadline); err != nil {
ac.cc.resolveNow(resolver.ResolveNowOptions{})
// After exhausting all addresses, the addrConn enters
// TRANSIENT_FAILURE.
ac.mu.Lock()
if ac.state == connectivity.Shutdown {
ac.mu.Unlock()
if acCtx.Err() != nil {
return
}
ac.mu.Lock()
ac.updateConnectivityState(connectivity.TransientFailure, err)
// Backoff.
@ -1175,13 +1354,13 @@ func (ac *addrConn) resetTransport() {
ac.mu.Unlock()
case <-b:
timer.Stop()
case <-ac.ctx.Done():
case <-acCtx.Done():
timer.Stop()
return
}
ac.mu.Lock()
if ac.state != connectivity.Shutdown {
if acCtx.Err() == nil {
ac.updateConnectivityState(connectivity.Idle, err)
}
ac.mu.Unlock()
@ -1196,14 +1375,13 @@ func (ac *addrConn) resetTransport() {
// tryAllAddrs tries to creates a connection to the addresses, and stop when at
// the first successful one. It returns an error if no address was successfully
// connected, or updates ac appropriately with the new transport.
func (ac *addrConn) tryAllAddrs(addrs []resolver.Address, connectDeadline time.Time) error {
func (ac *addrConn) tryAllAddrs(ctx context.Context, addrs []resolver.Address, connectDeadline time.Time) error {
var firstConnErr error
for _, addr := range addrs {
ac.mu.Lock()
if ac.state == connectivity.Shutdown {
ac.mu.Unlock()
if ctx.Err() != nil {
return errConnClosing
}
ac.mu.Lock()
ac.cc.mu.RLock()
ac.dopts.copts.KeepaliveParams = ac.cc.mkp
@ -1217,7 +1395,7 @@ func (ac *addrConn) tryAllAddrs(addrs []resolver.Address, connectDeadline time.T
channelz.Infof(logger, ac.channelzID, "Subchannel picks a new address %q to connect", addr.Addr)
err := ac.createTransport(addr, copts, connectDeadline)
err := ac.createTransport(ctx, addr, copts, connectDeadline)
if err == nil {
return nil
}
@ -1234,19 +1412,20 @@ func (ac *addrConn) tryAllAddrs(addrs []resolver.Address, connectDeadline time.T
// createTransport creates a connection to addr. It returns an error if the
// address was not successfully connected, or updates ac appropriately with the
// new transport.
func (ac *addrConn) createTransport(addr resolver.Address, copts transport.ConnectOptions, connectDeadline time.Time) error {
func (ac *addrConn) createTransport(ctx context.Context, addr resolver.Address, copts transport.ConnectOptions, connectDeadline time.Time) error {
addr.ServerName = ac.cc.getServerName(addr)
hctx, hcancel := context.WithCancel(ac.ctx)
hctx, hcancel := context.WithCancel(ctx)
onClose := func(r transport.GoAwayReason) {
ac.mu.Lock()
defer ac.mu.Unlock()
// adjust params based on GoAwayReason
ac.adjustParams(r)
if ac.state == connectivity.Shutdown {
// Already shut down. tearDown() already cleared the transport and
// canceled hctx via ac.ctx, and we expected this connection to be
// closed, so do nothing here.
if ctx.Err() != nil {
// Already shut down or connection attempt canceled. tearDown() or
// updateAddrs() already cleared the transport and canceled hctx
// via ac.ctx, and we expected this connection to be closed, so do
// nothing here.
return
}
hcancel()
@ -1265,7 +1444,7 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
ac.updateConnectivityState(connectivity.Idle, nil)
}
connectCtx, cancel := context.WithDeadline(ac.ctx, connectDeadline)
connectCtx, cancel := context.WithDeadline(ctx, connectDeadline)
defer cancel()
copts.ChannelzParentID = ac.channelzID
@ -1282,7 +1461,7 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
ac.mu.Lock()
defer ac.mu.Unlock()
if ac.state == connectivity.Shutdown {
if ctx.Err() != nil {
// This can happen if the subConn was removed while in `Connecting`
// state. tearDown() would have set the state to `Shutdown`, but
// would not have closed the transport since ac.transport would not
@ -1294,6 +1473,9 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
// The error we pass to Close() is immaterial since there are no open
// streams at this point, so no trailers with error details will be sent
// out. We just need to pass a non-nil error.
//
// This can also happen when updateAddrs is called during a connection
// attempt.
go newTr.Close(transport.ErrConnClosing)
return nil
}
@ -1401,6 +1583,29 @@ func (ac *addrConn) getReadyTransport() transport.ClientTransport {
return nil
}
// getTransport waits until the addrconn is ready and returns the transport.
// If the context expires first, returns an appropriate status. If the
// addrConn is stopped first, returns an Unavailable status error.
func (ac *addrConn) getTransport(ctx context.Context) (transport.ClientTransport, error) {
for ctx.Err() == nil {
ac.mu.Lock()
t, state, sc := ac.transport, ac.state, ac.stateChan
ac.mu.Unlock()
if state == connectivity.Ready {
return t, nil
}
if state == connectivity.Shutdown {
return nil, status.Errorf(codes.Unavailable, "SubConn shutting down")
}
select {
case <-ctx.Done():
case <-sc:
}
}
return nil, status.FromContextError(ctx.Err()).Err()
}
// tearDown starts to tear down the addrConn.
//
// Note that tearDown doesn't remove ac from ac.cc.conns, so the addrConn struct
@ -1552,7 +1757,14 @@ func (cc *ClientConn) connectionError() error {
return cc.lastConnectionError
}
func (cc *ClientConn) parseTargetAndFindResolver() (resolver.Builder, error) {
// parseTargetAndFindResolver parses the user's dial target and stores the
// parsed target in `cc.parsedTarget`.
//
// The resolver to use is determined based on the scheme in the parsed target
// and the same is stored in `cc.resolverBuilder`.
//
// Doesn't grab cc.mu as this method is expected to be called only at Dial time.
func (cc *ClientConn) parseTargetAndFindResolver() error {
channelz.Infof(logger, cc.channelzID, "original dial target is: %q", cc.target)
var rb resolver.Builder
@ -1564,7 +1776,8 @@ func (cc *ClientConn) parseTargetAndFindResolver() (resolver.Builder, error) {
rb = cc.getResolver(parsedTarget.URL.Scheme)
if rb != nil {
cc.parsedTarget = parsedTarget
return rb, nil
cc.resolverBuilder = rb
return nil
}
}
@ -1579,15 +1792,16 @@ func (cc *ClientConn) parseTargetAndFindResolver() (resolver.Builder, error) {
parsedTarget, err = parseTarget(canonicalTarget)
if err != nil {
channelz.Infof(logger, cc.channelzID, "dial target %q parse failed: %v", canonicalTarget, err)
return nil, err
return err
}
channelz.Infof(logger, cc.channelzID, "parsed dial target is: %+v", parsedTarget)
rb = cc.getResolver(parsedTarget.URL.Scheme)
if rb == nil {
return nil, fmt.Errorf("could not get resolver for default scheme: %q", parsedTarget.URL.Scheme)
return fmt.Errorf("could not get resolver for default scheme: %q", parsedTarget.URL.Scheme)
}
cc.parsedTarget = parsedTarget
return rb, nil
cc.resolverBuilder = rb
return nil
}
// parseTarget uses RFC 3986 semantics to parse the given target into a
@ -1610,7 +1824,15 @@ func parseTarget(target string) (resolver.Target, error) {
// - user specified authority override using `WithAuthority` dial option
// - creds' notion of server name for the authentication handshake
// - endpoint from dial target of the form "scheme://[authority]/endpoint"
func determineAuthority(endpoint, target string, dopts dialOptions) (string, error) {
//
// Stores the determined authority in `cc.authority`.
//
// Returns a non-nil error if the authority returned by the transport
// credentials do not match the authority configured through the dial option.
//
// Doesn't grab cc.mu as this method is expected to be called only at Dial time.
func (cc *ClientConn) determineAuthority() error {
dopts := cc.dopts
// Historically, we had two options for users to specify the serverName or
// authority for a channel. One was through the transport credentials
// (either in its constructor, or through the OverrideServerName() method).
@ -1627,25 +1849,58 @@ func determineAuthority(endpoint, target string, dopts dialOptions) (string, err
}
authorityFromDialOption := dopts.authority
if (authorityFromCreds != "" && authorityFromDialOption != "") && authorityFromCreds != authorityFromDialOption {
return "", fmt.Errorf("ClientConn's authority from transport creds %q and dial option %q don't match", authorityFromCreds, authorityFromDialOption)
return fmt.Errorf("ClientConn's authority from transport creds %q and dial option %q don't match", authorityFromCreds, authorityFromDialOption)
}
endpoint := cc.parsedTarget.Endpoint()
target := cc.target
switch {
case authorityFromDialOption != "":
return authorityFromDialOption, nil
cc.authority = authorityFromDialOption
case authorityFromCreds != "":
return authorityFromCreds, nil
cc.authority = authorityFromCreds
case strings.HasPrefix(target, "unix:") || strings.HasPrefix(target, "unix-abstract:"):
// TODO: remove when the unix resolver implements optional interface to
// return channel authority.
return "localhost", nil
cc.authority = "localhost"
case strings.HasPrefix(endpoint, ":"):
return "localhost" + endpoint, nil
cc.authority = "localhost" + endpoint
default:
// TODO: Define an optional interface on the resolver builder to return
// the channel authority given the user's dial target. For resolvers
// which don't implement this interface, we will use the endpoint from
// "scheme://authority/endpoint" as the default authority.
return endpoint, nil
cc.authority = endpoint
}
channelz.Infof(logger, cc.channelzID, "Channel authority set to %q", cc.authority)
return nil
}
// initResolverWrapper creates a ccResolverWrapper, which builds the name
// resolver. This method grabs the lock to assign the newly built resolver
// wrapper to the cc.resolverWrapper field.
func (cc *ClientConn) initResolverWrapper(creds credentials.TransportCredentials) error {
rw, err := newCCResolverWrapper(cc, ccResolverWrapperOpts{
target: cc.parsedTarget,
builder: cc.resolverBuilder,
bOpts: resolver.BuildOptions{
DisableServiceConfig: cc.dopts.disableServiceConfig,
DialCreds: creds,
CredsBundle: cc.dopts.copts.CredsBundle,
Dialer: cc.dopts.copts.Dialer,
},
channelzID: cc.channelzID,
})
if err != nil {
return fmt.Errorf("failed to build resolver: %v", err)
}
// Resolver implementations may report state update or error inline when
// built (or right after), and this is handled in cc.updateResolverState.
// Also, an error from the resolver might lead to a re-resolution request
// from the balancer, which is handled in resolveNow() where
// `cc.resolverWrapper` is accessed. Hence, we need to hold the lock here.
cc.mu.Lock()
cc.resolverWrapper = rw
cc.mu.Unlock()
return nil
}

21
vendor/google.golang.org/grpc/dialoptions.go generated vendored
View File

@ -77,6 +77,7 @@ type dialOptions struct {
defaultServiceConfig *ServiceConfig // defaultServiceConfig is parsed from defaultServiceConfigRawJSON.
defaultServiceConfigRawJSON *string
resolvers []resolver.Builder
idleTimeout time.Duration
}
// DialOption configures how we set up the connection.
@ -655,3 +656,23 @@ func WithResolvers(rs ...resolver.Builder) DialOption {
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.
//
// By default this feature is disabled, which can also be explicitly configured
// by passing zero to this function.
//
// # 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
})
}

287
vendor/google.golang.org/grpc/idle.go generated vendored Normal file
View File

@ -0,0 +1,287 @@
/*
*
* 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 grpc
import (
"fmt"
"math"
"sync"
"sync/atomic"
"time"
)
// For overriding in unit tests.
var timeAfterFunc = func(d time.Duration, f func()) *time.Timer {
return time.AfterFunc(d, f)
}
// idlenessEnforcer is the functionality provided by grpc.ClientConn to enter
// and exit from idle mode.
type idlenessEnforcer interface {
exitIdleMode() error
enterIdleMode() error
}
// idlenessManager defines the functionality required to track RPC activity on a
// channel.
type idlenessManager interface {
onCallBegin() error
onCallEnd()
close()
}
type noopIdlenessManager struct{}
func (noopIdlenessManager) onCallBegin() error { return nil }
func (noopIdlenessManager) onCallEnd() {}
func (noopIdlenessManager) close() {}
// idlenessManagerImpl implements the idlenessManager interface. It uses atomic
// operations to synchronize access to shared state and a mutex to guarantee
// mutual exclusion in a critical section.
type idlenessManagerImpl struct {
// State accessed atomically.
lastCallEndTime int64 // Unix timestamp in nanos; time when the most recent RPC completed.
activeCallsCount int32 // Count of active RPCs; -math.MaxInt32 means channel is idle or is trying to get there.
activeSinceLastTimerCheck int32 // Boolean; True if there was an RPC since the last timer callback.
closed int32 // Boolean; True when the manager is closed.
// Can be accessed without atomics or mutex since these are set at creation
// time and read-only after that.
enforcer idlenessEnforcer // Functionality provided by grpc.ClientConn.
timeout int64 // Idle timeout duration nanos stored as an int64.
// idleMu is used to guarantee mutual exclusion in two scenarios:
// - Opposing intentions:
// - a: Idle timeout has fired and handleIdleTimeout() is trying to put
// the channel in idle mode because the channel has been inactive.
// - b: At the same time an RPC is made on the channel, and onCallBegin()
// is trying to prevent the channel from going idle.
// - Competing intentions:
// - The channel is in idle mode and there are multiple RPCs starting at
// the same time, all trying to move the channel out of idle. Only one
// of them should succeed in doing so, while the other RPCs should
// piggyback on the first one and be successfully handled.
idleMu sync.RWMutex
actuallyIdle bool
timer *time.Timer
}
// newIdlenessManager creates a new idleness manager implementation for the
// given idle timeout.
func newIdlenessManager(enforcer idlenessEnforcer, idleTimeout time.Duration) idlenessManager {
if idleTimeout == 0 {
return noopIdlenessManager{}
}
i := &idlenessManagerImpl{
enforcer: enforcer,
timeout: int64(idleTimeout),
}
i.timer = timeAfterFunc(idleTimeout, i.handleIdleTimeout)
return i
}
// resetIdleTimer resets the idle timer to the given duration. This method
// should only be called from the timer callback.
func (i *idlenessManagerImpl) resetIdleTimer(d time.Duration) {
i.idleMu.Lock()
defer i.idleMu.Unlock()
if i.timer == nil {
// Only close sets timer to nil. We are done.
return
}
// It is safe to ignore the return value from Reset() because this method is
// only ever called from the timer callback, which means the timer has
// already fired.
i.timer.Reset(d)
}
// handleIdleTimeout is the timer callback that is invoked upon expiry of the
// configured idle timeout. The channel is considered inactive if there are no
// ongoing calls and no RPC activity since the last time the timer fired.
func (i *idlenessManagerImpl) handleIdleTimeout() {
if i.isClosed() {
return
}
if atomic.LoadInt32(&i.activeCallsCount) > 0 {
i.resetIdleTimer(time.Duration(i.timeout))
return
}
// There has been activity on the channel since we last got here. Reset the
// timer and return.
if atomic.LoadInt32(&i.activeSinceLastTimerCheck) == 1 {
// Set the timer to fire after a duration of idle timeout, calculated
// from the time the most recent RPC completed.
atomic.StoreInt32(&i.activeSinceLastTimerCheck, 0)
i.resetIdleTimer(time.Duration(atomic.LoadInt64(&i.lastCallEndTime) + i.timeout - time.Now().UnixNano()))
return
}
// This CAS operation is extremely likely to succeed given that there has
// been no activity since the last time we were here. Setting the
// activeCallsCount to -math.MaxInt32 indicates to onCallBegin() that the
// channel is either in idle mode or is trying to get there.
if !atomic.CompareAndSwapInt32(&i.activeCallsCount, 0, -math.MaxInt32) {
// This CAS operation can fail if an RPC started after we checked for
// activity at the top of this method, or one was ongoing from before
// the last time we were here. In both case, reset the timer and return.
i.resetIdleTimer(time.Duration(i.timeout))
return
}
// Now that we've set the active calls count to -math.MaxInt32, it's time to
// actually move to idle mode.
if i.tryEnterIdleMode() {
// Successfully entered idle mode. No timer needed until we exit idle.
return
}
// Failed to enter idle mode due to a concurrent RPC that kept the channel
// active, or because of an error from the channel. Undo the attempt to
// enter idle, and reset the timer to try again later.
atomic.AddInt32(&i.activeCallsCount, math.MaxInt32)
i.resetIdleTimer(time.Duration(i.timeout))
}
// tryEnterIdleMode instructs the channel to enter idle mode. But before
// that, it performs a last minute check to ensure that no new RPC has come in,
// making the channel active.
//
// Return value indicates whether or not the channel moved to idle mode.
//
// Holds idleMu which ensures mutual exclusion with exitIdleMode.
func (i *idlenessManagerImpl) tryEnterIdleMode() bool {
i.idleMu.Lock()
defer i.idleMu.Unlock()
if atomic.LoadInt32(&i.activeCallsCount) != -math.MaxInt32 {
// We raced and lost to a new RPC. Very rare, but stop entering idle.
return false
}
if atomic.LoadInt32(&i.activeSinceLastTimerCheck) == 1 {
// An very short RPC could have come in (and also finished) after we
// checked for calls count and activity in handleIdleTimeout(), but
// before the CAS operation. So, we need to check for activity again.
return false
}
// No new RPCs have come in since we last set the active calls count value
// -math.MaxInt32 in the timer callback. And since we have the lock, it is
// safe to enter idle mode now.
if err := i.enforcer.enterIdleMode(); err != nil {
logger.Errorf("Failed to enter idle mode: %v", err)
return false
}
// Successfully entered idle mode.
i.actuallyIdle = true
return true
}
// onCallBegin is invoked at the start of every RPC.
func (i *idlenessManagerImpl) onCallBegin() error {
if i.isClosed() {
return nil
}
if atomic.AddInt32(&i.activeCallsCount, 1) > 0 {
// Channel is not idle now. Set the activity bit and allow the call.
atomic.StoreInt32(&i.activeSinceLastTimerCheck, 1)
return nil
}
// Channel is either in idle mode or is in the process of moving to idle
// mode. Attempt to exit idle mode to allow this RPC.
if err := i.exitIdleMode(); err != nil {
// Undo the increment to calls count, and return an error causing the
// RPC to fail.
atomic.AddInt32(&i.activeCallsCount, -1)
return err
}
atomic.StoreInt32(&i.activeSinceLastTimerCheck, 1)
return nil
}
// exitIdleMode instructs the channel to exit idle mode.
//
// Holds idleMu which ensures mutual exclusion with tryEnterIdleMode.
func (i *idlenessManagerImpl) exitIdleMode() error {
i.idleMu.Lock()
defer i.idleMu.Unlock()
if !i.actuallyIdle {
// This can happen in two scenarios:
// - handleIdleTimeout() set the calls count to -math.MaxInt32 and called
// tryEnterIdleMode(). But before the latter could grab the lock, an RPC
// came in and onCallBegin() noticed that the calls count is negative.
// - Channel is in idle mode, and multiple new RPCs come in at the same
// time, all of them notice a negative calls count in onCallBegin and get
// here. The first one to get the lock would got the channel to exit idle.
//
// Either way, nothing to do here.
return nil
}
if err := i.enforcer.exitIdleMode(); err != nil {
return fmt.Errorf("channel failed to exit idle mode: %v", err)
}
// Undo the idle entry process. This also respects any new RPC attempts.
atomic.AddInt32(&i.activeCallsCount, math.MaxInt32)
i.actuallyIdle = false
// Start a new timer to fire after the configured idle timeout.
i.timer = timeAfterFunc(time.Duration(i.timeout), i.handleIdleTimeout)
return nil
}
// onCallEnd is invoked at the end of every RPC.
func (i *idlenessManagerImpl) onCallEnd() {
if i.isClosed() {
return
}
// Record the time at which the most recent call finished.
atomic.StoreInt64(&i.lastCallEndTime, time.Now().UnixNano())
// Decrement the active calls count. This count can temporarily go negative
// when the timer callback is in the process of moving the channel to idle
// mode, but one or more RPCs come in and complete before the timer callback
// can get done with the process of moving to idle mode.
atomic.AddInt32(&i.activeCallsCount, -1)
}
func (i *idlenessManagerImpl) isClosed() bool {
return atomic.LoadInt32(&i.closed) == 1
}
func (i *idlenessManagerImpl) close() {
atomic.StoreInt32(&i.closed, 1)
i.idleMu.Lock()
i.timer.Stop()
i.timer = nil
i.idleMu.Unlock()
}

3
vendor/google.golang.org/grpc/internal/binarylog/binarylog.go generated vendored
View File

@ -32,6 +32,9 @@ 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
}

9
vendor/google.golang.org/grpc/internal/binarylog/method_logger.go generated vendored
View File

@ -49,6 +49,9 @@ func (g *callIDGenerator) reset() {
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)
}
@ -65,6 +68,9 @@ type TruncatingMethodLogger struct {
}
// 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,
@ -145,6 +151,9 @@ func (ml *TruncatingMethodLogger) truncateMessage(msgPb *binlogpb.Message) (trun
}
// 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
}

26
vendor/google.golang.org/grpc/internal/buffer/unbounded.go generated vendored
View File

@ -35,6 +35,7 @@ import "sync"
// internal/transport/transport.go for an example of this.
type Unbounded struct {
c chan interface{}
closed bool
mu sync.Mutex
backlog []interface{}
}
@ -47,16 +48,18 @@ func NewUnbounded() *Unbounded {
// Put adds t to the unbounded buffer.
func (b *Unbounded) Put(t interface{}) {
b.mu.Lock()
defer b.mu.Unlock()
if b.closed {
return
}
if len(b.backlog) == 0 {
select {
case b.c <- t:
b.mu.Unlock()
return
default:
}
}
b.backlog = append(b.backlog, t)
b.mu.Unlock()
}
// Load sends the earliest buffered data, if any, onto the read channel
@ -64,6 +67,10 @@ func (b *Unbounded) Put(t interface{}) {
// value from the read channel.
func (b *Unbounded) Load() {
b.mu.Lock()
defer b.mu.Unlock()
if b.closed {
return
}
if len(b.backlog) > 0 {
select {
case b.c <- b.backlog[0]:
@ -72,7 +79,6 @@ func (b *Unbounded) Load() {
default:
}
}
b.mu.Unlock()
}
// Get returns a read channel on which values added to the buffer, via Put(),
@ -80,6 +86,20 @@ func (b *Unbounded) Load() {
//
// 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.
func (b *Unbounded) Get() <-chan interface{} {
return b.c
}
// Close closes the unbounded buffer.
func (b *Unbounded) Close() {
b.mu.Lock()
defer b.mu.Unlock()
if b.closed {
return
}
b.closed = true
close(b.c)
}

4
vendor/google.golang.org/grpc/internal/envconfig/envconfig.go generated vendored
View File

@ -36,6 +36,10 @@ var (
// "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)
// PickFirstLBConfig is set if we should support configuration of the
// pick_first LB policy, which can be enabled by setting the environment
// variable "GRPC_EXPERIMENTAL_PICKFIRST_LB_CONFIG" to "true".
PickFirstLBConfig = boolFromEnv("GRPC_EXPERIMENTAL_PICKFIRST_LB_CONFIG", false)
)
func boolFromEnv(envVar string, def bool) bool {

6
vendor/google.golang.org/grpc/internal/envconfig/observability.go generated vendored
View File

@ -28,9 +28,15 @@ const (
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)
)

19
vendor/google.golang.org/grpc/internal/envconfig/xds.go generated vendored
View File

@ -61,11 +61,10 @@ var (
// have a brand new API on the server-side and users explicitly need to use
// the new API to get security integration on the server.
XDSClientSideSecurity = boolFromEnv("GRPC_XDS_EXPERIMENTAL_SECURITY_SUPPORT", true)
// XDSAggregateAndDNS indicates whether processing of aggregated cluster
// and DNS cluster is enabled, which can be enabled by setting the
// environment variable
// "GRPC_XDS_EXPERIMENTAL_ENABLE_AGGREGATE_AND_LOGICAL_DNS_CLUSTER" to
// "true".
// XDSAggregateAndDNS indicates whether processing of aggregated cluster and
// DNS cluster is enabled, which can be disabled by setting the environment
// variable "GRPC_XDS_EXPERIMENTAL_ENABLE_AGGREGATE_AND_LOGICAL_DNS_CLUSTER"
// to "false".
XDSAggregateAndDNS = boolFromEnv("GRPC_XDS_EXPERIMENTAL_ENABLE_AGGREGATE_AND_LOGICAL_DNS_CLUSTER", true)
// XDSRBAC indicates whether xDS configured RBAC HTTP Filter is enabled,
@ -82,11 +81,15 @@ var (
XDSFederation = boolFromEnv("GRPC_EXPERIMENTAL_XDS_FEDERATION", true)
// XDSRLS indicates whether processing of Cluster Specifier plugins and
// support for the RLS CLuster Specifier is enabled, which can be enabled by
// support for the RLS CLuster Specifier is enabled, which can be disabled by
// setting the environment variable "GRPC_EXPERIMENTAL_XDS_RLS_LB" to
// "true".
XDSRLS = boolFromEnv("GRPC_EXPERIMENTAL_XDS_RLS_LB", false)
// "false".
XDSRLS = boolFromEnv("GRPC_EXPERIMENTAL_XDS_RLS_LB", true)
// C2PResolverTestOnlyTrafficDirectorURI is the TD URI for testing.
C2PResolverTestOnlyTrafficDirectorURI = os.Getenv("GRPC_TEST_ONLY_GOOGLE_C2P_RESOLVER_TRAFFIC_DIRECTOR_URI")
// XDSCustomLBPolicy indicates whether Custom LB Policies are enabled, which
// can be disabled by setting the environment variable
// "GRPC_EXPERIMENTAL_XDS_CUSTOM_LB_CONFIG" to "false".
XDSCustomLBPolicy = boolFromEnv("GRPC_EXPERIMENTAL_XDS_CUSTOM_LB_CONFIG", true)
)

14
vendor/google.golang.org/grpc/internal/grpcrand/grpcrand.go generated vendored
View File

@ -72,3 +72,17 @@ func Uint64() uint64 {
defer mu.Unlock()
return r.Uint64()
}
// Uint32 implements rand.Uint32 on the grpcrand global source.
func Uint32() uint32 {
mu.Lock()
defer mu.Unlock()
return r.Uint32()
}
// Shuffle implements rand.Shuffle on the grpcrand global source.
var Shuffle = func(n int, f func(int, int)) {
mu.Lock()
defer mu.Unlock()
r.Shuffle(n, f)
}

64
vendor/google.golang.org/grpc/internal/grpcsync/callback_serializer.go generated vendored
View File

@ -20,6 +20,7 @@ package grpcsync
import (
"context"
"sync"
"google.golang.org/grpc/internal/buffer"
)
@ -31,15 +32,26 @@ import (
//
// This type is safe for concurrent access.
type CallbackSerializer struct {
// Done is closed once the serializer is shut down completely, i.e all
// scheduled callbacks are executed and the serializer has deallocated all
// its resources.
Done chan struct{}
callbacks *buffer.Unbounded
closedMu sync.Mutex
closed bool
}
// NewCallbackSerializer returns a new CallbackSerializer instance. The provided
// context will be passed to the scheduled callbacks. Users should cancel the
// provided context to shutdown the CallbackSerializer. It is guaranteed that no
// callbacks will be executed once this context is canceled.
// callbacks will be added once this context is canceled, and any pending un-run
// callbacks will be executed before the serializer is shut down.
func NewCallbackSerializer(ctx context.Context) *CallbackSerializer {
t := &CallbackSerializer{callbacks: buffer.NewUnbounded()}
t := &CallbackSerializer{
Done: make(chan struct{}),
callbacks: buffer.NewUnbounded(),
}
go t.run(ctx)
return t
}
@ -48,18 +60,60 @@ func NewCallbackSerializer(ctx context.Context) *CallbackSerializer {
//
// Callbacks are expected to honor the context when performing any blocking
// operations, and should return early when the context is canceled.
func (t *CallbackSerializer) Schedule(f func(ctx context.Context)) {
//
// Return value indicates if the callback was successfully added to the list of
// callbacks to be executed by the serializer. It is not possible to add
// callbacks once the context passed to NewCallbackSerializer is cancelled.
func (t *CallbackSerializer) Schedule(f func(ctx context.Context)) bool {
t.closedMu.Lock()
defer t.closedMu.Unlock()
if t.closed {
return false
}
t.callbacks.Put(f)
return true
}
func (t *CallbackSerializer) run(ctx context.Context) {
var backlog []func(context.Context)
defer close(t.Done)
for ctx.Err() == nil {
select {
case <-ctx.Done():
return
case callback := <-t.callbacks.Get():
// Do nothing here. Next iteration of the for loop will not happen,
// since ctx.Err() would be non-nil.
case callback, ok := <-t.callbacks.Get():
if !ok {
return
}
t.callbacks.Load()
callback.(func(ctx context.Context))(ctx)
}
}
// Fetch pending callbacks if any, and execute them before returning from
// this method and closing t.Done.
t.closedMu.Lock()
t.closed = true
backlog = t.fetchPendingCallbacks()
t.callbacks.Close()
t.closedMu.Unlock()
for _, b := range backlog {
b(ctx)
}
}
func (t *CallbackSerializer) fetchPendingCallbacks() []func(context.Context) {
var backlog []func(context.Context)
for {
select {
case b := <-t.callbacks.Get():
backlog = append(backlog, b.(func(context.Context)))
t.callbacks.Load()
default:
return backlog
}
}
}

24
vendor/google.golang.org/grpc/internal/internal.go generated vendored
View File

@ -60,6 +60,9 @@ var (
GetServerCredentials interface{} // func (*grpc.Server) credentials.TransportCredentials
// CanonicalString returns the canonical string of the code defined here:
// https://github.com/grpc/grpc/blob/master/doc/statuscodes.md.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
CanonicalString interface{} // func (codes.Code) string
// DrainServerTransports initiates a graceful close of existing connections
// on a gRPC server accepted on the provided listener address. An
@ -69,20 +72,35 @@ var (
// AddGlobalServerOptions adds an array of ServerOption that will be
// effective globally for newly created servers. The priority will be: 1.
// user-provided; 2. this method; 3. default values.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
AddGlobalServerOptions interface{} // func(opt ...ServerOption)
// ClearGlobalServerOptions clears the array of extra ServerOption. This
// method is useful in testing and benchmarking.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
ClearGlobalServerOptions func()
// AddGlobalDialOptions adds an array of DialOption that will be effective
// globally for newly created client channels. The priority will be: 1.
// user-provided; 2. this method; 3. default values.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
AddGlobalDialOptions interface{} // func(opt ...DialOption)
// DisableGlobalDialOptions returns a DialOption that prevents the
// ClientConn from applying the global DialOptions (set via
// AddGlobalDialOptions).
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
DisableGlobalDialOptions interface{} // func() grpc.DialOption
// ClearGlobalDialOptions clears the array of extra DialOption. This
// method is useful in testing and benchmarking.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
ClearGlobalDialOptions func()
// JoinDialOptions combines the dial options passed as arguments into a
// single dial option.
@ -93,9 +111,15 @@ var (
// WithBinaryLogger returns a DialOption that specifies the binary logger
// for a ClientConn.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
WithBinaryLogger interface{} // func(binarylog.Logger) grpc.DialOption
// BinaryLogger returns a ServerOption that can set the binary logger for a
// server.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
BinaryLogger interface{} // func(binarylog.Logger) grpc.ServerOption
// NewXDSResolverWithConfigForTesting creates a new xds resolver builder using

130
vendor/google.golang.org/grpc/internal/serviceconfig/duration.go generated vendored Normal file
View File

@ -0,0 +1,130 @@
/*
*
* 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 serviceconfig
import (
"encoding/json"
"fmt"
"math"
"strconv"
"strings"
"time"
)
// Duration defines JSON marshal and unmarshal methods to conform to the
// protobuf JSON spec defined [here].
//
// [here]: https://protobuf.dev/reference/protobuf/google.protobuf/#duration
type Duration time.Duration
func (d Duration) String() string {
return fmt.Sprint(time.Duration(d))
}
// MarshalJSON converts from d to a JSON string output.
func (d Duration) MarshalJSON() ([]byte, error) {
ns := time.Duration(d).Nanoseconds()
sec := ns / int64(time.Second)
ns = ns % int64(time.Second)
var sign string
if sec < 0 || ns < 0 {
sign, sec, ns = "-", -1*sec, -1*ns
}
// Generated output always contains 0, 3, 6, or 9 fractional digits,
// depending on required precision.
str := fmt.Sprintf("%s%d.%09d", sign, sec, ns)
str = strings.TrimSuffix(str, "000")
str = strings.TrimSuffix(str, "000")
str = strings.TrimSuffix(str, ".000")
return []byte(fmt.Sprintf("\"%ss\"", str)), nil
}
// UnmarshalJSON unmarshals b as a duration JSON string into d.
func (d *Duration) UnmarshalJSON(b []byte) error {
var s string
if err := json.Unmarshal(b, &s); err != nil {
return err
}
if !strings.HasSuffix(s, "s") {
return fmt.Errorf("malformed duration %q: missing seconds unit", s)
}
neg := false
if s[0] == '-' {
neg = true
s = s[1:]
}
ss := strings.SplitN(s[:len(s)-1], ".", 3)
if len(ss) > 2 {
return fmt.Errorf("malformed duration %q: too many decimals", s)
}
// hasDigits is set if either the whole or fractional part of the number is
// present, since both are optional but one is required.
hasDigits := false
var sec, ns int64
if len(ss[0]) > 0 {
var err error
if sec, err = strconv.ParseInt(ss[0], 10, 64); err != nil {
return fmt.Errorf("malformed duration %q: %v", s, err)
}
// Maximum seconds value per the durationpb spec.
const maxProtoSeconds = 315_576_000_000
if sec > maxProtoSeconds {
return fmt.Errorf("out of range: %q", s)
}
hasDigits = true
}
if len(ss) == 2 && len(ss[1]) > 0 {
if len(ss[1]) > 9 {
return fmt.Errorf("malformed duration %q: too many digits after decimal", s)
}
var err error
if ns, err = strconv.ParseInt(ss[1], 10, 64); err != nil {
return fmt.Errorf("malformed duration %q: %v", s, err)
}
for i := 9; i > len(ss[1]); i-- {
ns *= 10
}
hasDigits = true
}
if !hasDigits {
return fmt.Errorf("malformed duration %q: contains no numbers", s)
}
if neg {
sec *= -1
ns *= -1
}
// Maximum/minimum seconds/nanoseconds representable by Go's time.Duration.
const maxSeconds = math.MaxInt64 / int64(time.Second)
const maxNanosAtMaxSeconds = math.MaxInt64 % int64(time.Second)
const minSeconds = math.MinInt64 / int64(time.Second)
const minNanosAtMinSeconds = math.MinInt64 % int64(time.Second)
if sec > maxSeconds || (sec == maxSeconds && ns >= maxNanosAtMaxSeconds) {
*d = Duration(math.MaxInt64)
} else if sec < minSeconds || (sec == minSeconds && ns <= minNanosAtMinSeconds) {
*d = Duration(math.MinInt64)
} else {
*d = Duration(sec*int64(time.Second) + ns)
}
return nil
}

2
vendor/google.golang.org/grpc/internal/transport/handler_server.go generated vendored
View File

@ -453,7 +453,7 @@ func (ht *serverHandlerTransport) IncrMsgSent() {}
func (ht *serverHandlerTransport) IncrMsgRecv() {}
func (ht *serverHandlerTransport) Drain() {
func (ht *serverHandlerTransport) Drain(debugData string) {
panic("Drain() is not implemented")
}

2
vendor/google.golang.org/grpc/internal/transport/http2_client.go generated vendored
View File

@ -1337,7 +1337,7 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
// setGoAwayReason sets the value of t.goAwayReason based
// on the GoAway frame received.
// It expects a lock on transport's mutext to be held by
// It expects a lock on transport's mutex to be held by
// the caller.
func (t *http2Client) setGoAwayReason(f *http2.GoAwayFrame) {
t.goAwayReason = GoAwayNoReason

10
vendor/google.golang.org/grpc/internal/transport/http2_server.go generated vendored
View File

@ -1166,12 +1166,12 @@ func (t *http2Server) keepalive() {
if val <= 0 {
// The connection has been idle for a duration of keepalive.MaxConnectionIdle or more.
// Gracefully close the connection.
t.Drain()
t.Drain("max_idle")
return
}
idleTimer.Reset(val)
case <-ageTimer.C:
t.Drain()
t.Drain("max_age")
ageTimer.Reset(t.kp.MaxConnectionAgeGrace)
select {
case <-ageTimer.C:
@ -1318,14 +1318,14 @@ func (t *http2Server) RemoteAddr() net.Addr {
return t.remoteAddr
}
func (t *http2Server) Drain() {
func (t *http2Server) Drain(debugData string) {
t.mu.Lock()
defer t.mu.Unlock()
if t.drainEvent != nil {
return
}
t.drainEvent = grpcsync.NewEvent()
t.controlBuf.put(&goAway{code: http2.ErrCodeNo, debugData: []byte{}, headsUp: true})
t.controlBuf.put(&goAway{code: http2.ErrCodeNo, debugData: []byte(debugData), headsUp: true})
}
var goAwayPing = &ping{data: [8]byte{1, 6, 1, 8, 0, 3, 3, 9}}
@ -1367,7 +1367,7 @@ func (t *http2Server) outgoingGoAwayHandler(g *goAway) (bool, error) {
// originated before the GoAway reaches the client.
// After getting the ack or timer expiration send out another GoAway this
// time with an ID of the max stream server intends to process.
if err := t.framer.fr.WriteGoAway(math.MaxUint32, http2.ErrCodeNo, []byte{}); err != nil {
if err := t.framer.fr.WriteGoAway(math.MaxUint32, http2.ErrCodeNo, g.debugData); err != nil {
return false, err
}
if err := t.framer.fr.WritePing(false, goAwayPing.data); err != nil {

2
vendor/google.golang.org/grpc/internal/transport/transport.go generated vendored
View File

@ -726,7 +726,7 @@ type ServerTransport interface {
RemoteAddr() net.Addr
// Drain notifies the client this ServerTransport stops accepting new RPCs.
Drain()
Drain(debugData string)
// IncrMsgSent increments the number of message sent through this transport.
IncrMsgSent()

38
vendor/google.golang.org/grpc/picker_wrapper.go generated vendored
View File

@ -36,6 +36,7 @@ import (
type pickerWrapper struct {
mu sync.Mutex
done bool
idle bool
blockingCh chan struct{}
picker balancer.Picker
}
@ -47,7 +48,11 @@ func newPickerWrapper() *pickerWrapper {
// updatePicker is called by UpdateBalancerState. It unblocks all blocked pick.
func (pw *pickerWrapper) updatePicker(p balancer.Picker) {
pw.mu.Lock()
if pw.done {
if pw.done || pw.idle {
// There is a small window where a picker update from the LB policy can
// race with the channel going to idle mode. If the picker is idle here,
// it is because the channel asked it to do so, and therefore it is sage
// to ignore the update from the LB policy.
pw.mu.Unlock()
return
}
@ -63,10 +68,8 @@ func (pw *pickerWrapper) updatePicker(p balancer.Picker) {
// - wraps the done function in the passed in result to increment the calls
// failed or calls succeeded channelz counter before invoking the actual
// done function.
func doneChannelzWrapper(acw *acBalancerWrapper, result *balancer.PickResult) {
acw.mu.Lock()
ac := acw.ac
acw.mu.Unlock()
func doneChannelzWrapper(acbw *acBalancerWrapper, result *balancer.PickResult) {
ac := acbw.ac
ac.incrCallsStarted()
done := result.Done
result.Done = func(b balancer.DoneInfo) {
@ -152,14 +155,14 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
return nil, balancer.PickResult{}, status.Error(codes.Unavailable, err.Error())
}
acw, ok := pickResult.SubConn.(*acBalancerWrapper)
acbw, ok := pickResult.SubConn.(*acBalancerWrapper)
if !ok {
logger.Errorf("subconn returned from pick is type %T, not *acBalancerWrapper", pickResult.SubConn)
continue
}
if t := acw.getAddrConn().getReadyTransport(); t != nil {
if t := acbw.ac.getReadyTransport(); t != nil {
if channelz.IsOn() {
doneChannelzWrapper(acw, &pickResult)
doneChannelzWrapper(acbw, &pickResult)
return t, pickResult, nil
}
return t, pickResult, nil
@ -187,6 +190,25 @@ func (pw *pickerWrapper) close() {
close(pw.blockingCh)
}
func (pw *pickerWrapper) enterIdleMode() {
pw.mu.Lock()
defer pw.mu.Unlock()
if pw.done {
return
}
pw.idle = true
}
func (pw *pickerWrapper) exitIdleMode() {
pw.mu.Lock()
defer pw.mu.Unlock()
if pw.done {
return
}
pw.blockingCh = make(chan struct{})
pw.idle = false
}
// dropError is a wrapper error that indicates the LB policy wishes to drop the
// RPC and not retry it.
type dropError struct {

52
vendor/google.golang.org/grpc/pickfirst.go generated vendored
View File

@ -19,11 +19,15 @@
package grpc
import (
"encoding/json"
"errors"
"fmt"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/internal/envconfig"
"google.golang.org/grpc/internal/grpcrand"
"google.golang.org/grpc/serviceconfig"
)
// PickFirstBalancerName is the name of the pick_first balancer.
@ -43,10 +47,28 @@ func (*pickfirstBuilder) Name() string {
return PickFirstBalancerName
}
type pfConfig struct {
serviceconfig.LoadBalancingConfig `json:"-"`
// If set to true, instructs the LB policy to shuffle the order of the list
// of addresses received from the name resolver before attempting to
// connect to them.
ShuffleAddressList bool `json:"shuffleAddressList"`
}
func (*pickfirstBuilder) ParseConfig(js json.RawMessage) (serviceconfig.LoadBalancingConfig, error) {
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 {
state connectivity.State
cc balancer.ClientConn
subConn balancer.SubConn
cfg *pfConfig
}
func (b *pickfirstBalancer) ResolverError(err error) {
@ -69,7 +91,8 @@ func (b *pickfirstBalancer) ResolverError(err error) {
}
func (b *pickfirstBalancer) UpdateClientConnState(state balancer.ClientConnState) error {
if len(state.ResolverState.Addresses) == 0 {
addrs := state.ResolverState.Addresses
if len(addrs) == 0 {
// The resolver reported an empty address list. Treat it like an error by
// calling b.ResolverError.
if b.subConn != nil {
@ -82,12 +105,23 @@ func (b *pickfirstBalancer) UpdateClientConnState(state balancer.ClientConnState
return balancer.ErrBadResolverState
}
if state.BalancerConfig != nil {
cfg, ok := state.BalancerConfig.(*pfConfig)
if !ok {
return fmt.Errorf("pickfirstBalancer: received nil or illegal BalancerConfig (type %T): %v", state.BalancerConfig, state.BalancerConfig)
}
b.cfg = cfg
}
if envconfig.PickFirstLBConfig && b.cfg != nil && b.cfg.ShuffleAddressList {
grpcrand.Shuffle(len(addrs), func(i, j int) { addrs[i], addrs[j] = addrs[j], addrs[i] })
}
if b.subConn != nil {
b.cc.UpdateAddresses(b.subConn, state.ResolverState.Addresses)
b.cc.UpdateAddresses(b.subConn, addrs)
return nil
}
subConn, err := b.cc.NewSubConn(state.ResolverState.Addresses, balancer.NewSubConnOptions{})
subConn, err := b.cc.NewSubConn(addrs, balancer.NewSubConnOptions{})
if err != nil {
if logger.V(2) {
logger.Errorf("pickfirstBalancer: failed to NewSubConn: %v", err)
@ -119,7 +153,6 @@ func (b *pickfirstBalancer) UpdateSubConnState(subConn balancer.SubConn, state b
}
return
}
b.state = state.ConnectivityState
if state.ConnectivityState == connectivity.Shutdown {
b.subConn = nil
return
@ -132,11 +165,21 @@ func (b *pickfirstBalancer) UpdateSubConnState(subConn balancer.SubConn, state b
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},
@ -147,6 +190,7 @@ func (b *pickfirstBalancer) UpdateSubConnState(subConn balancer.SubConn, state b
Picker: &picker{err: state.ConnectionError},
})
}
b.state = state.ConnectivityState
}
func (b *pickfirstBalancer) Close() {

11
vendor/google.golang.org/grpc/resolver/manual/manual.go generated vendored
View File

@ -21,6 +21,8 @@
package manual
import (
"sync"
"google.golang.org/grpc/resolver"
)
@ -50,6 +52,7 @@ type Resolver struct {
scheme string
// Fields actually belong to the resolver.
mu sync.Mutex // Guards access to CC.
CC resolver.ClientConn
bootstrapState *resolver.State
}
@ -62,8 +65,10 @@ func (r *Resolver) InitialState(s resolver.State) {
// Build returns itself for Resolver, because it's both a builder and a resolver.
func (r *Resolver) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOptions) (resolver.Resolver, error) {
r.BuildCallback(target, cc, opts)
r.mu.Lock()
r.CC = cc
r.mu.Unlock()
r.BuildCallback(target, cc, opts)
if r.bootstrapState != nil {
r.UpdateState(*r.bootstrapState)
}
@ -87,10 +92,14 @@ func (r *Resolver) Close() {
// UpdateState calls CC.UpdateState.
func (r *Resolver) UpdateState(s resolver.State) {
r.mu.Lock()
r.CC.UpdateState(s)
r.mu.Unlock()
}
// ReportError calls CC.ReportError.
func (r *Resolver) ReportError(err error) {
r.mu.Lock()
r.CC.ReportError(err)
r.mu.Unlock()
}

16
vendor/google.golang.org/grpc/resolver/resolver.go generated vendored
View File

@ -22,13 +22,13 @@ package resolver
import (
"context"
"fmt"
"net"
"net/url"
"strings"
"google.golang.org/grpc/attributes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/internal/pretty"
"google.golang.org/grpc/serviceconfig"
)
@ -124,7 +124,7 @@ type Address struct {
Attributes *attributes.Attributes
// BalancerAttributes contains arbitrary data about this address intended
// for consumption by the LB policy. These attribes do not affect SubConn
// for consumption by the LB policy. These attributes do not affect SubConn
// creation, connection establishment, handshaking, etc.
BalancerAttributes *attributes.Attributes
@ -151,7 +151,17 @@ func (a Address) Equal(o Address) bool {
// String returns JSON formatted string representation of the address.
func (a Address) String() string {
return pretty.ToJSON(a)
var sb strings.Builder
sb.WriteString(fmt.Sprintf("{Addr: %q, ", a.Addr))
sb.WriteString(fmt.Sprintf("ServerName: %q, ", a.ServerName))
if a.Attributes != nil {
sb.WriteString(fmt.Sprintf("Attributes: %v, ", a.Attributes.String()))
}
if a.BalancerAttributes != nil {
sb.WriteString(fmt.Sprintf("BalancerAttributes: %v", a.BalancerAttributes.String()))
}
sb.WriteString("}")
return sb.String()
}
// BuildOptions includes additional information for the builder to create

225
vendor/google.golang.org/grpc/resolver_conn_wrapper.go generated vendored
View File

@ -19,11 +19,11 @@
package grpc
import (
"context"
"strings"
"sync"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/internal/grpcsync"
"google.golang.org/grpc/internal/pretty"
@ -31,129 +31,192 @@ import (
"google.golang.org/grpc/serviceconfig"
)
// resolverStateUpdater wraps the single method used by ccResolverWrapper to
// report a state update from the actual resolver implementation.
type resolverStateUpdater interface {
updateResolverState(s resolver.State, err error) error
}
// ccResolverWrapper is a wrapper on top of cc for resolvers.
// It implements resolver.ClientConn interface.
type ccResolverWrapper struct {
cc *ClientConn
resolverMu sync.Mutex
resolver resolver.Resolver
done *grpcsync.Event
curState resolver.State
// The following fields are initialized when the wrapper is created and are
// read-only afterwards, and therefore can be accessed without a mutex.
cc resolverStateUpdater
channelzID *channelz.Identifier
ignoreServiceConfig bool
opts ccResolverWrapperOpts
serializer *grpcsync.CallbackSerializer // To serialize all incoming calls.
serializerCancel context.CancelFunc // To close the serializer, accessed only from close().
incomingMu sync.Mutex // Synchronizes all the incoming calls.
// All incoming (resolver --> gRPC) calls are guaranteed to execute in a
// mutually exclusive manner as they are scheduled on the serializer.
// Fields accessed *only* in these serializer callbacks, can therefore be
// accessed without a mutex.
curState resolver.State
// mu guards access to the below fields.
mu sync.Mutex
closed bool
resolver resolver.Resolver // Accessed only from outgoing calls.
}
// ccResolverWrapperOpts wraps the arguments to be passed when creating a new
// ccResolverWrapper.
type ccResolverWrapperOpts struct {
target resolver.Target // User specified dial target to resolve.
builder resolver.Builder // Resolver builder to use.
bOpts resolver.BuildOptions // Resolver build options to use.
channelzID *channelz.Identifier // Channelz identifier for the channel.
}
// newCCResolverWrapper uses the resolver.Builder to build a Resolver and
// returns a ccResolverWrapper object which wraps the newly built resolver.
func newCCResolverWrapper(cc *ClientConn, rb resolver.Builder) (*ccResolverWrapper, error) {
func newCCResolverWrapper(cc resolverStateUpdater, opts ccResolverWrapperOpts) (*ccResolverWrapper, error) {
ctx, cancel := context.WithCancel(context.Background())
ccr := &ccResolverWrapper{
cc: cc,
done: grpcsync.NewEvent(),
cc: cc,
channelzID: opts.channelzID,
ignoreServiceConfig: opts.bOpts.DisableServiceConfig,
opts: opts,
serializer: grpcsync.NewCallbackSerializer(ctx),
serializerCancel: cancel,
}
var credsClone credentials.TransportCredentials
if creds := cc.dopts.copts.TransportCredentials; creds != nil {
credsClone = creds.Clone()
}
rbo := resolver.BuildOptions{
DisableServiceConfig: cc.dopts.disableServiceConfig,
DialCreds: credsClone,
CredsBundle: cc.dopts.copts.CredsBundle,
Dialer: cc.dopts.copts.Dialer,
}
var err error
// We need to hold the lock here while we assign to the ccr.resolver field
// to guard against a data race caused by the following code path,
// rb.Build-->ccr.ReportError-->ccr.poll-->ccr.resolveNow, would end up
// accessing ccr.resolver which is being assigned here.
ccr.resolverMu.Lock()
defer ccr.resolverMu.Unlock()
ccr.resolver, err = rb.Build(cc.parsedTarget, ccr, rbo)
// Cannot hold the lock at build time because the resolver can send an
// update or error inline and these incoming calls grab the lock to schedule
// a callback in the serializer.
r, err := opts.builder.Build(opts.target, ccr, opts.bOpts)
if err != nil {
cancel()
return nil, err
}
// Any error reported by the resolver at build time that leads to a
// re-resolution request from the balancer is dropped by grpc until we
// return from this function. So, we don't have to handle pending resolveNow
// requests here.
ccr.mu.Lock()
ccr.resolver = r
ccr.mu.Unlock()
return ccr, nil
}
func (ccr *ccResolverWrapper) resolveNow(o resolver.ResolveNowOptions) {
ccr.resolverMu.Lock()
if !ccr.done.HasFired() {
ccr.resolver.ResolveNow(o)
ccr.mu.Lock()
defer ccr.mu.Unlock()
// ccr.resolver field is set only after the call to Build() returns. But in
// the process of building, the resolver may send an error update which when
// propagated to the balancer may result in a re-resolution request.
if ccr.closed || ccr.resolver == nil {
return
}
ccr.resolverMu.Unlock()
ccr.resolver.ResolveNow(o)
}
func (ccr *ccResolverWrapper) close() {
ccr.resolverMu.Lock()
ccr.resolver.Close()
ccr.done.Fire()
ccr.resolverMu.Unlock()
ccr.mu.Lock()
if ccr.closed {
ccr.mu.Unlock()
return
}
channelz.Info(logger, ccr.channelzID, "Closing the name resolver")
// Close the serializer to ensure that no more calls from the resolver are
// handled, before actually closing the resolver.
ccr.serializerCancel()
ccr.closed = true
r := ccr.resolver
ccr.mu.Unlock()
// Give enqueued callbacks a chance to finish.
<-ccr.serializer.Done
// Spawn a goroutine to close the resolver (since it may block trying to
// cleanup all allocated resources) and return early.
go r.Close()
}
// serializerScheduleLocked is a convenience method to schedule a function to be
// run on the serializer while holding ccr.mu.
func (ccr *ccResolverWrapper) serializerScheduleLocked(f func(context.Context)) {
ccr.mu.Lock()
ccr.serializer.Schedule(f)
ccr.mu.Unlock()
}
// UpdateState is called by resolver implementations to report new state to gRPC
// which includes addresses and service config.
func (ccr *ccResolverWrapper) UpdateState(s resolver.State) error {
ccr.incomingMu.Lock()
defer ccr.incomingMu.Unlock()
if ccr.done.HasFired() {
errCh := make(chan error, 1)
ok := ccr.serializer.Schedule(func(context.Context) {
ccr.addChannelzTraceEvent(s)
ccr.curState = s
if err := ccr.cc.updateResolverState(ccr.curState, nil); err == balancer.ErrBadResolverState {
errCh <- balancer.ErrBadResolverState
return
}
errCh <- nil
})
if !ok {
// The only time when Schedule() fail to add the callback to the
// serializer is when the serializer is closed, and this happens only
// when the resolver wrapper is closed.
return nil
}
ccr.addChannelzTraceEvent(s)
ccr.curState = s
if err := ccr.cc.updateResolverState(ccr.curState, nil); err == balancer.ErrBadResolverState {
return balancer.ErrBadResolverState
}
return nil
return <-errCh
}
// ReportError is called by resolver implementations to report errors
// encountered during name resolution to gRPC.
func (ccr *ccResolverWrapper) ReportError(err error) {
ccr.incomingMu.Lock()
defer ccr.incomingMu.Unlock()
if ccr.done.HasFired() {
return
}
channelz.Warningf(logger, ccr.cc.channelzID, "ccResolverWrapper: reporting error to cc: %v", err)
ccr.cc.updateResolverState(resolver.State{}, err)
ccr.serializerScheduleLocked(func(_ context.Context) {
channelz.Warningf(logger, ccr.channelzID, "ccResolverWrapper: reporting error to cc: %v", err)
ccr.cc.updateResolverState(resolver.State{}, err)
})
}
// NewAddress is called by the resolver implementation to send addresses to gRPC.
// NewAddress is called by the resolver implementation to send addresses to
// gRPC.
func (ccr *ccResolverWrapper) NewAddress(addrs []resolver.Address) {
ccr.incomingMu.Lock()
defer ccr.incomingMu.Unlock()
if ccr.done.HasFired() {
return
}
ccr.addChannelzTraceEvent(resolver.State{Addresses: addrs, ServiceConfig: ccr.curState.ServiceConfig})
ccr.curState.Addresses = addrs
ccr.cc.updateResolverState(ccr.curState, nil)
ccr.serializerScheduleLocked(func(_ context.Context) {
ccr.addChannelzTraceEvent(resolver.State{Addresses: addrs, ServiceConfig: ccr.curState.ServiceConfig})
ccr.curState.Addresses = addrs
ccr.cc.updateResolverState(ccr.curState, nil)
})
}
// NewServiceConfig is called by the resolver implementation to send service
// configs to gRPC.
func (ccr *ccResolverWrapper) NewServiceConfig(sc string) {
ccr.incomingMu.Lock()
defer ccr.incomingMu.Unlock()
if ccr.done.HasFired() {
return
}
channelz.Infof(logger, ccr.cc.channelzID, "ccResolverWrapper: got new service config: %s", sc)
if ccr.cc.dopts.disableServiceConfig {
channelz.Info(logger, ccr.cc.channelzID, "Service config lookups disabled; ignoring config")
return
}
scpr := parseServiceConfig(sc)
if scpr.Err != nil {
channelz.Warningf(logger, ccr.cc.channelzID, "ccResolverWrapper: error parsing service config: %v", scpr.Err)
return
}
ccr.addChannelzTraceEvent(resolver.State{Addresses: ccr.curState.Addresses, ServiceConfig: scpr})
ccr.curState.ServiceConfig = scpr
ccr.cc.updateResolverState(ccr.curState, nil)
ccr.serializerScheduleLocked(func(_ context.Context) {
channelz.Infof(logger, ccr.channelzID, "ccResolverWrapper: got new service config: %s", sc)
if ccr.ignoreServiceConfig {
channelz.Info(logger, ccr.channelzID, "Service config lookups disabled; ignoring config")
return
}
scpr := parseServiceConfig(sc)
if scpr.Err != nil {
channelz.Warningf(logger, ccr.channelzID, "ccResolverWrapper: error parsing service config: %v", scpr.Err)
return
}
ccr.addChannelzTraceEvent(resolver.State{Addresses: ccr.curState.Addresses, ServiceConfig: scpr})
ccr.curState.ServiceConfig = scpr
ccr.cc.updateResolverState(ccr.curState, nil)
})
}
// ParseServiceConfig is called by resolver implementations to parse a JSON
// representation of the service config.
func (ccr *ccResolverWrapper) ParseServiceConfig(scJSON string) *serviceconfig.ParseResult {
return parseServiceConfig(scJSON)
}
// addChannelzTraceEvent adds a channelz trace event containing the new
// state received from resolver implementations.
func (ccr *ccResolverWrapper) addChannelzTraceEvent(s resolver.State) {
var updates []string
var oldSC, newSC *ServiceConfig
@ -172,5 +235,5 @@ func (ccr *ccResolverWrapper) addChannelzTraceEvent(s resolver.State) {
} else if len(ccr.curState.Addresses) == 0 && len(s.Addresses) > 0 {
updates = append(updates, "resolver returned new addresses")
}
channelz.Infof(logger, ccr.cc.channelzID, "Resolver state updated: %s (%v)", pretty.ToJSON(s), strings.Join(updates, "; "))
channelz.Infof(logger, ccr.channelzID, "Resolver state updated: %s (%v)", pretty.ToJSON(s), strings.Join(updates, "; "))
}

6
vendor/google.golang.org/grpc/server.go generated vendored
View File

@ -895,7 +895,7 @@ func (s *Server) drainServerTransports(addr string) {
s.mu.Lock()
conns := s.conns[addr]
for st := range conns {
st.Drain()
st.Drain("")
}
s.mu.Unlock()
}
@ -1046,7 +1046,7 @@ func (s *Server) addConn(addr string, st transport.ServerTransport) bool {
if s.drain {
// Transport added after we drained our existing conns: drain it
// immediately.
st.Drain()
st.Drain("")
}
if s.conns[addr] == nil {
@ -1856,7 +1856,7 @@ func (s *Server) GracefulStop() {
if !s.drain {
for _, conns := range s.conns {
for st := range conns {
st.Drain()
st.Drain("graceful_stop")
}
}
s.drain = true

75
vendor/google.golang.org/grpc/service_config.go generated vendored
View File

@ -23,8 +23,6 @@ import (
"errors"
"fmt"
"reflect"
"strconv"
"strings"
"time"
"google.golang.org/grpc/codes"
@ -106,8 +104,8 @@ type healthCheckConfig struct {
type jsonRetryPolicy struct {
MaxAttempts int
InitialBackoff string
MaxBackoff string
InitialBackoff internalserviceconfig.Duration
MaxBackoff internalserviceconfig.Duration
BackoffMultiplier float64
RetryableStatusCodes []codes.Code
}
@ -129,50 +127,6 @@ type retryThrottlingPolicy struct {
TokenRatio float64
}
func parseDuration(s *string) (*time.Duration, error) {
if s == nil {
return nil, nil
}
if !strings.HasSuffix(*s, "s") {
return nil, fmt.Errorf("malformed duration %q", *s)
}
ss := strings.SplitN((*s)[:len(*s)-1], ".", 3)
if len(ss) > 2 {
return nil, fmt.Errorf("malformed duration %q", *s)
}
// hasDigits is set if either the whole or fractional part of the number is
// present, since both are optional but one is required.
hasDigits := false
var d time.Duration
if len(ss[0]) > 0 {
i, err := strconv.ParseInt(ss[0], 10, 32)
if err != nil {
return nil, fmt.Errorf("malformed duration %q: %v", *s, err)
}
d = time.Duration(i) * time.Second
hasDigits = true
}
if len(ss) == 2 && len(ss[1]) > 0 {
if len(ss[1]) > 9 {
return nil, fmt.Errorf("malformed duration %q", *s)
}
f, err := strconv.ParseInt(ss[1], 10, 64)
if err != nil {
return nil, fmt.Errorf("malformed duration %q: %v", *s, err)
}
for i := 9; i > len(ss[1]); i-- {
f *= 10
}
d += time.Duration(f)
hasDigits = true
}
if !hasDigits {
return nil, fmt.Errorf("malformed duration %q", *s)
}
return &d, nil
}
type jsonName struct {
Service string
Method string
@ -201,7 +155,7 @@ func (j jsonName) generatePath() (string, error) {
type jsonMC struct {
Name *[]jsonName
WaitForReady *bool
Timeout *string
Timeout *internalserviceconfig.Duration
MaxRequestMessageBytes *int64
MaxResponseMessageBytes *int64
RetryPolicy *jsonRetryPolicy
@ -252,15 +206,10 @@ func parseServiceConfig(js string) *serviceconfig.ParseResult {
if m.Name == nil {
continue
}
d, err := parseDuration(m.Timeout)
if err != nil {
logger.Warningf("grpc: unmarshaling service config %s: %v", js, err)
return &serviceconfig.ParseResult{Err: err}
}
mc := MethodConfig{
WaitForReady: m.WaitForReady,
Timeout: d,
Timeout: (*time.Duration)(m.Timeout),
}
if mc.RetryPolicy, err = convertRetryPolicy(m.RetryPolicy); err != nil {
logger.Warningf("grpc: unmarshaling service config %s: %v", js, err)
@ -312,18 +261,10 @@ func convertRetryPolicy(jrp *jsonRetryPolicy) (p *internalserviceconfig.RetryPol
if jrp == nil {
return nil, nil
}
ib, err := parseDuration(&jrp.InitialBackoff)
if err != nil {
return nil, err
}
mb, err := parseDuration(&jrp.MaxBackoff)
if err != nil {
return nil, err
}
if jrp.MaxAttempts <= 1 ||
*ib <= 0 ||
*mb <= 0 ||
jrp.InitialBackoff <= 0 ||
jrp.MaxBackoff <= 0 ||
jrp.BackoffMultiplier <= 0 ||
len(jrp.RetryableStatusCodes) == 0 {
logger.Warningf("grpc: ignoring retry policy %v due to illegal configuration", jrp)
@ -332,8 +273,8 @@ func convertRetryPolicy(jrp *jsonRetryPolicy) (p *internalserviceconfig.RetryPol
rp := &internalserviceconfig.RetryPolicy{
MaxAttempts: jrp.MaxAttempts,
InitialBackoff: *ib,
MaxBackoff: *mb,
InitialBackoff: time.Duration(jrp.InitialBackoff),
MaxBackoff: time.Duration(jrp.MaxBackoff),
BackoffMultiplier: jrp.BackoffMultiplier,
RetryableStatusCodes: make(map[codes.Code]bool),
}

29
vendor/google.golang.org/grpc/stream.go generated vendored
View File

@ -123,6 +123,9 @@ type ClientStream interface {
// calling RecvMsg on the same stream at the same time, but it is not safe
// to call SendMsg on the same stream in different goroutines. It is also
// not safe to call CloseSend concurrently with SendMsg.
//
// It is not safe to modify the message after calling SendMsg. Tracing
// libraries and stats handlers may use the message lazily.
SendMsg(m interface{}) error
// RecvMsg blocks until it receives a message into m or the stream is
// done. It returns io.EOF when the stream completes successfully. On
@ -152,6 +155,11 @@ type ClientStream interface {
// If none of the above happen, a goroutine and a context will be leaked, and grpc
// will not call the optionally-configured stats handler with a stats.End message.
func (cc *ClientConn) NewStream(ctx context.Context, desc *StreamDesc, method string, opts ...CallOption) (ClientStream, error) {
if err := cc.idlenessMgr.onCallBegin(); err != nil {
return nil, err
}
defer cc.idlenessMgr.onCallEnd()
// 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)
@ -469,7 +477,7 @@ func (a *csAttempt) newStream() error {
// It is safe to overwrite the csAttempt's context here, since all state
// maintained in it are local to the attempt. When the attempt has to be
// retried, a new instance of csAttempt will be created.
if a.pickResult.Metatada != nil {
if a.pickResult.Metadata != nil {
// We currently do not have a function it the metadata package which
// merges given metadata with existing metadata in a context. Existing
// function `AppendToOutgoingContext()` takes a variadic argument of key
@ -479,7 +487,7 @@ func (a *csAttempt) newStream() error {
// in a form passable to AppendToOutgoingContext(), or create a version
// of AppendToOutgoingContext() that accepts a metadata.MD.
md, _ := metadata.FromOutgoingContext(a.ctx)
md = metadata.Join(md, a.pickResult.Metatada)
md = metadata.Join(md, a.pickResult.Metadata)
a.ctx = metadata.NewOutgoingContext(a.ctx, md)
}
@ -1265,14 +1273,19 @@ func newNonRetryClientStream(ctx context.Context, desc *StreamDesc, method strin
as.p = &parser{r: s}
ac.incrCallsStarted()
if desc != unaryStreamDesc {
// Listen on cc and stream contexts to cleanup when the user closes the
// ClientConn or cancels the stream context. In all other cases, an error
// should already be injected into the recv buffer by the transport, which
// the client will eventually receive, and then we will cancel the stream's
// context in clientStream.finish.
// Listen on stream context to cleanup when the stream context is
// canceled. Also listen for the addrConn's context in case the
// addrConn is closed or reconnects to a different address. In all
// other cases, an error should already be injected into the recv
// buffer by the transport, which the client will eventually receive,
// and then we will cancel the stream's context in
// addrConnStream.finish.
go func() {
ac.mu.Lock()
acCtx := ac.ctx
ac.mu.Unlock()
select {
case <-ac.ctx.Done():
case <-acCtx.Done():
as.finish(status.Error(codes.Canceled, "grpc: the SubConn is closing"))
case <-ctx.Done():
as.finish(toRPCErr(ctx.Err()))

2
vendor/google.golang.org/grpc/version.go generated vendored
View File

@ -19,4 +19,4 @@
package grpc
// Version is the current grpc version.
const Version = "1.55.0"
const Version = "1.56.0"

6
vendor/modules.txt vendored
View File

@ -675,7 +675,7 @@ golang.org/x/net/internal/timeseries
golang.org/x/net/proxy
golang.org/x/net/trace
golang.org/x/net/websocket
# golang.org/x/oauth2 v0.6.0
# golang.org/x/oauth2 v0.7.0
## explicit; go 1.17
golang.org/x/oauth2
golang.org/x/oauth2/internal
@ -739,7 +739,7 @@ google.golang.org/appengine/internal/log
google.golang.org/appengine/internal/remote_api
google.golang.org/appengine/internal/urlfetch
google.golang.org/appengine/urlfetch
# google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4
# google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1
## explicit; go 1.19
google.golang.org/genproto/googleapis/api
google.golang.org/genproto/googleapis/api/annotations
@ -748,7 +748,7 @@ google.golang.org/genproto/googleapis/api/httpbody
google.golang.org/genproto/googleapis/rpc/errdetails
google.golang.org/genproto/googleapis/rpc/status
google.golang.org/genproto/protobuf/field_mask
# google.golang.org/grpc v1.55.0
# google.golang.org/grpc v1.56.0
## explicit; go 1.17
google.golang.org/grpc
google.golang.org/grpc/attributes