mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-23 06:40:23 +00:00
6709cdd1d0
There was a `replace` statement in `go.mod` that prevented Ginkgo from updating. Kubernetes 1.27 requires a new Ginkgo version. Signed-off-by: Niels de Vos <ndevos@ibm.com>
371 lines
7.5 KiB
Go
371 lines
7.5 KiB
Go
// Copyright 2014 Google Inc. All Rights Reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// This file is a simple protocol buffer encoder and decoder.
|
|
// The format is described at
|
|
// https://developers.google.com/protocol-buffers/docs/encoding
|
|
//
|
|
// A protocol message must implement the message interface:
|
|
// decoder() []decoder
|
|
// encode(*buffer)
|
|
//
|
|
// The decode method returns a slice indexed by field number that gives the
|
|
// function to decode that field.
|
|
// The encode method encodes its receiver into the given buffer.
|
|
//
|
|
// The two methods are simple enough to be implemented by hand rather than
|
|
// by using a protocol compiler.
|
|
//
|
|
// See profile.go for examples of messages implementing this interface.
|
|
//
|
|
// There is no support for groups, message sets, or "has" bits.
|
|
|
|
package profile
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
)
|
|
|
|
type buffer struct {
|
|
field int // field tag
|
|
typ int // proto wire type code for field
|
|
u64 uint64
|
|
data []byte
|
|
tmp [16]byte
|
|
}
|
|
|
|
type decoder func(*buffer, message) error
|
|
|
|
type message interface {
|
|
decoder() []decoder
|
|
encode(*buffer)
|
|
}
|
|
|
|
func marshal(m message) []byte {
|
|
var b buffer
|
|
m.encode(&b)
|
|
return b.data
|
|
}
|
|
|
|
func encodeVarint(b *buffer, x uint64) {
|
|
for x >= 128 {
|
|
b.data = append(b.data, byte(x)|0x80)
|
|
x >>= 7
|
|
}
|
|
b.data = append(b.data, byte(x))
|
|
}
|
|
|
|
func encodeLength(b *buffer, tag int, len int) {
|
|
encodeVarint(b, uint64(tag)<<3|2)
|
|
encodeVarint(b, uint64(len))
|
|
}
|
|
|
|
func encodeUint64(b *buffer, tag int, x uint64) {
|
|
// append varint to b.data
|
|
encodeVarint(b, uint64(tag)<<3)
|
|
encodeVarint(b, x)
|
|
}
|
|
|
|
func encodeUint64s(b *buffer, tag int, x []uint64) {
|
|
if len(x) > 2 {
|
|
// Use packed encoding
|
|
n1 := len(b.data)
|
|
for _, u := range x {
|
|
encodeVarint(b, u)
|
|
}
|
|
n2 := len(b.data)
|
|
encodeLength(b, tag, n2-n1)
|
|
n3 := len(b.data)
|
|
copy(b.tmp[:], b.data[n2:n3])
|
|
copy(b.data[n1+(n3-n2):], b.data[n1:n2])
|
|
copy(b.data[n1:], b.tmp[:n3-n2])
|
|
return
|
|
}
|
|
for _, u := range x {
|
|
encodeUint64(b, tag, u)
|
|
}
|
|
}
|
|
|
|
func encodeUint64Opt(b *buffer, tag int, x uint64) {
|
|
if x == 0 {
|
|
return
|
|
}
|
|
encodeUint64(b, tag, x)
|
|
}
|
|
|
|
func encodeInt64(b *buffer, tag int, x int64) {
|
|
u := uint64(x)
|
|
encodeUint64(b, tag, u)
|
|
}
|
|
|
|
func encodeInt64s(b *buffer, tag int, x []int64) {
|
|
if len(x) > 2 {
|
|
// Use packed encoding
|
|
n1 := len(b.data)
|
|
for _, u := range x {
|
|
encodeVarint(b, uint64(u))
|
|
}
|
|
n2 := len(b.data)
|
|
encodeLength(b, tag, n2-n1)
|
|
n3 := len(b.data)
|
|
copy(b.tmp[:], b.data[n2:n3])
|
|
copy(b.data[n1+(n3-n2):], b.data[n1:n2])
|
|
copy(b.data[n1:], b.tmp[:n3-n2])
|
|
return
|
|
}
|
|
for _, u := range x {
|
|
encodeInt64(b, tag, u)
|
|
}
|
|
}
|
|
|
|
func encodeInt64Opt(b *buffer, tag int, x int64) {
|
|
if x == 0 {
|
|
return
|
|
}
|
|
encodeInt64(b, tag, x)
|
|
}
|
|
|
|
func encodeString(b *buffer, tag int, x string) {
|
|
encodeLength(b, tag, len(x))
|
|
b.data = append(b.data, x...)
|
|
}
|
|
|
|
func encodeStrings(b *buffer, tag int, x []string) {
|
|
for _, s := range x {
|
|
encodeString(b, tag, s)
|
|
}
|
|
}
|
|
|
|
func encodeBool(b *buffer, tag int, x bool) {
|
|
if x {
|
|
encodeUint64(b, tag, 1)
|
|
} else {
|
|
encodeUint64(b, tag, 0)
|
|
}
|
|
}
|
|
|
|
func encodeBoolOpt(b *buffer, tag int, x bool) {
|
|
if x {
|
|
encodeBool(b, tag, x)
|
|
}
|
|
}
|
|
|
|
func encodeMessage(b *buffer, tag int, m message) {
|
|
n1 := len(b.data)
|
|
m.encode(b)
|
|
n2 := len(b.data)
|
|
encodeLength(b, tag, n2-n1)
|
|
n3 := len(b.data)
|
|
copy(b.tmp[:], b.data[n2:n3])
|
|
copy(b.data[n1+(n3-n2):], b.data[n1:n2])
|
|
copy(b.data[n1:], b.tmp[:n3-n2])
|
|
}
|
|
|
|
func unmarshal(data []byte, m message) (err error) {
|
|
b := buffer{data: data, typ: 2}
|
|
return decodeMessage(&b, m)
|
|
}
|
|
|
|
func le64(p []byte) uint64 {
|
|
return uint64(p[0]) | uint64(p[1])<<8 | uint64(p[2])<<16 | uint64(p[3])<<24 | uint64(p[4])<<32 | uint64(p[5])<<40 | uint64(p[6])<<48 | uint64(p[7])<<56
|
|
}
|
|
|
|
func le32(p []byte) uint32 {
|
|
return uint32(p[0]) | uint32(p[1])<<8 | uint32(p[2])<<16 | uint32(p[3])<<24
|
|
}
|
|
|
|
func decodeVarint(data []byte) (uint64, []byte, error) {
|
|
var u uint64
|
|
for i := 0; ; i++ {
|
|
if i >= 10 || i >= len(data) {
|
|
return 0, nil, errors.New("bad varint")
|
|
}
|
|
u |= uint64(data[i]&0x7F) << uint(7*i)
|
|
if data[i]&0x80 == 0 {
|
|
return u, data[i+1:], nil
|
|
}
|
|
}
|
|
}
|
|
|
|
func decodeField(b *buffer, data []byte) ([]byte, error) {
|
|
x, data, err := decodeVarint(data)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
b.field = int(x >> 3)
|
|
b.typ = int(x & 7)
|
|
b.data = nil
|
|
b.u64 = 0
|
|
switch b.typ {
|
|
case 0:
|
|
b.u64, data, err = decodeVarint(data)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
case 1:
|
|
if len(data) < 8 {
|
|
return nil, errors.New("not enough data")
|
|
}
|
|
b.u64 = le64(data[:8])
|
|
data = data[8:]
|
|
case 2:
|
|
var n uint64
|
|
n, data, err = decodeVarint(data)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if n > uint64(len(data)) {
|
|
return nil, errors.New("too much data")
|
|
}
|
|
b.data = data[:n]
|
|
data = data[n:]
|
|
case 5:
|
|
if len(data) < 4 {
|
|
return nil, errors.New("not enough data")
|
|
}
|
|
b.u64 = uint64(le32(data[:4]))
|
|
data = data[4:]
|
|
default:
|
|
return nil, fmt.Errorf("unknown wire type: %d", b.typ)
|
|
}
|
|
|
|
return data, nil
|
|
}
|
|
|
|
func checkType(b *buffer, typ int) error {
|
|
if b.typ != typ {
|
|
return errors.New("type mismatch")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func decodeMessage(b *buffer, m message) error {
|
|
if err := checkType(b, 2); err != nil {
|
|
return err
|
|
}
|
|
dec := m.decoder()
|
|
data := b.data
|
|
for len(data) > 0 {
|
|
// pull varint field# + type
|
|
var err error
|
|
data, err = decodeField(b, data)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if b.field >= len(dec) || dec[b.field] == nil {
|
|
continue
|
|
}
|
|
if err := dec[b.field](b, m); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func decodeInt64(b *buffer, x *int64) error {
|
|
if err := checkType(b, 0); err != nil {
|
|
return err
|
|
}
|
|
*x = int64(b.u64)
|
|
return nil
|
|
}
|
|
|
|
func decodeInt64s(b *buffer, x *[]int64) error {
|
|
if b.typ == 2 {
|
|
// Packed encoding
|
|
data := b.data
|
|
tmp := make([]int64, 0, len(data)) // Maximally sized
|
|
for len(data) > 0 {
|
|
var u uint64
|
|
var err error
|
|
|
|
if u, data, err = decodeVarint(data); err != nil {
|
|
return err
|
|
}
|
|
tmp = append(tmp, int64(u))
|
|
}
|
|
*x = append(*x, tmp...)
|
|
return nil
|
|
}
|
|
var i int64
|
|
if err := decodeInt64(b, &i); err != nil {
|
|
return err
|
|
}
|
|
*x = append(*x, i)
|
|
return nil
|
|
}
|
|
|
|
func decodeUint64(b *buffer, x *uint64) error {
|
|
if err := checkType(b, 0); err != nil {
|
|
return err
|
|
}
|
|
*x = b.u64
|
|
return nil
|
|
}
|
|
|
|
func decodeUint64s(b *buffer, x *[]uint64) error {
|
|
if b.typ == 2 {
|
|
data := b.data
|
|
// Packed encoding
|
|
tmp := make([]uint64, 0, len(data)) // Maximally sized
|
|
for len(data) > 0 {
|
|
var u uint64
|
|
var err error
|
|
|
|
if u, data, err = decodeVarint(data); err != nil {
|
|
return err
|
|
}
|
|
tmp = append(tmp, u)
|
|
}
|
|
*x = append(*x, tmp...)
|
|
return nil
|
|
}
|
|
var u uint64
|
|
if err := decodeUint64(b, &u); err != nil {
|
|
return err
|
|
}
|
|
*x = append(*x, u)
|
|
return nil
|
|
}
|
|
|
|
func decodeString(b *buffer, x *string) error {
|
|
if err := checkType(b, 2); err != nil {
|
|
return err
|
|
}
|
|
*x = string(b.data)
|
|
return nil
|
|
}
|
|
|
|
func decodeStrings(b *buffer, x *[]string) error {
|
|
var s string
|
|
if err := decodeString(b, &s); err != nil {
|
|
return err
|
|
}
|
|
*x = append(*x, s)
|
|
return nil
|
|
}
|
|
|
|
func decodeBool(b *buffer, x *bool) error {
|
|
if err := checkType(b, 0); err != nil {
|
|
return err
|
|
}
|
|
if int64(b.u64) == 0 {
|
|
*x = false
|
|
} else {
|
|
*x = true
|
|
}
|
|
return nil
|
|
}
|