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[Vendor] Update go-redis to v8.5.0 (#13749)

Browse Source 
* Update go-redis to v8.4.0

* github.com/go-redis/redis/v8  v8.4.0 -> v8.5.0

* Apply suggestions from code review

Co-authored-by: zeripath <art27@cantab.net>

* TODO

* Use the Queue termination channel as the default context for pushes

Signed-off-by: Andrew Thornton <art27@cantab.net>

* missed one

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: zeripath <art27@cantab.net>
This commit is contained in:
6543
2021-02-10 22:28:32 +01:00
committed by GitHub
parent 4cffc46f65
commit ac97ea573c
139 changed files with 16117 additions and 4965 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
vendor/github.com/go-redis/redis/v7/.travis.yml generated vendored
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@@ -1,22 +0,0 @@
dist: xenial
language: go
services:
- redis-server
go:
- 1.12.x
- 1.13.x
- tip
matrix:
allow_failures:
- go: tip
env:
- GO111MODULE=on
go_import_path: github.com/go-redis/redis
before_install:
- curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.21.0

46
vendor/github.com/go-redis/redis/v7/CHANGELOG.md generated vendored
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@@ -1,46 +0,0 @@
# Changelog
## v7.2
- Existing `HMSet` is renamed to `HSet` and old deprecated `HMSet` is restored for Redis 3 users.
## v7.1
- Existing `Cmd.String` is renamed to `Cmd.Text`. New `Cmd.String` implements `fmt.Stringer` interface.
## v7
- *Important*. Tx.Pipeline now returns a non-transactional pipeline. Use Tx.TxPipeline for a transactional pipeline.
- WrapProcess is replaced with more convenient AddHook that has access to context.Context.
- WithContext now can not be used to create a shallow copy of the client.
- New methods ProcessContext, DoContext, and ExecContext.
- Client respects Context.Deadline when setting net.Conn deadline.
- Client listens on Context.Done while waiting for a connection from the pool and returns an error when context context is cancelled.
- Add PubSub.ChannelWithSubscriptions that sends `*Subscription` in addition to `*Message` to allow detecting reconnections.
- `time.Time` is now marshalled in RFC3339 format. `rdb.Get("foo").Time()` helper is added to parse the time.
- `SetLimiter` is removed and added `Options.Limiter` instead.
- `HMSet` is deprecated as of Redis v4.
## v6.15
- Cluster and Ring pipelines process commands for each node in its own goroutine.
## 6.14
- Added Options.MinIdleConns.
- Added Options.MaxConnAge.
- PoolStats.FreeConns is renamed to PoolStats.IdleConns.
- Add Client.Do to simplify creating custom commands.
- Add Cmd.String, Cmd.Int, Cmd.Int64, Cmd.Uint64, Cmd.Float64, and Cmd.Bool helpers.
- Lower memory usage.
## v6.13
- Ring got new options called `HashReplicas` and `Hash`. It is recommended to set `HashReplicas = 1000` for better keys distribution between shards.
- Cluster client was optimized to use much less memory when reloading cluster state.
- PubSub.ReceiveMessage is re-worked to not use ReceiveTimeout so it does not lose data when timeout occurres. In most cases it is recommended to use PubSub.Channel instead.
- Dialer.KeepAlive is set to 5 minutes by default.
## v6.12
- ClusterClient got new option called `ClusterSlots` which allows to build cluster of normal Redis Servers that don't have cluster mode enabled. See https://godoc.org/github.com/go-redis/redis#example-NewClusterClient--ManualSetup

128
vendor/github.com/go-redis/redis/v7/README.md generated vendored
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@@ -1,128 +0,0 @@
# Redis client for Golang
[![Build Status](https://travis-ci.org/go-redis/redis.png?branch=master)](https://travis-ci.org/go-redis/redis)
[![GoDoc](https://godoc.org/github.com/go-redis/redis?status.svg)](https://godoc.org/github.com/go-redis/redis)
[![Airbrake](https://img.shields.io/badge/kudos-airbrake.io-orange.svg)](https://airbrake.io)
Supports:
- Redis 3 commands except QUIT, MONITOR, SLOWLOG and SYNC.
- Automatic connection pooling with [circuit breaker](https://en.wikipedia.org/wiki/Circuit_breaker_design_pattern) support.
- [Pub/Sub](https://godoc.org/github.com/go-redis/redis#PubSub).
- [Transactions](https://godoc.org/github.com/go-redis/redis#example-Client-TxPipeline).
- [Pipeline](https://godoc.org/github.com/go-redis/redis#example-Client-Pipeline) and [TxPipeline](https://godoc.org/github.com/go-redis/redis#example-Client-TxPipeline).
- [Scripting](https://godoc.org/github.com/go-redis/redis#Script).
- [Timeouts](https://godoc.org/github.com/go-redis/redis#Options).
- [Redis Sentinel](https://godoc.org/github.com/go-redis/redis#NewFailoverClient).
- [Redis Cluster](https://godoc.org/github.com/go-redis/redis#NewClusterClient).
- [Cluster of Redis Servers](https://godoc.org/github.com/go-redis/redis#example-NewClusterClient--ManualSetup) without using cluster mode and Redis Sentinel.
- [Ring](https://godoc.org/github.com/go-redis/redis#NewRing).
- [Instrumentation](https://godoc.org/github.com/go-redis/redis#ex-package--Instrumentation).
- [Cache friendly](https://github.com/go-redis/cache).
- [Rate limiting](https://github.com/go-redis/redis_rate).
- [Distributed Locks](https://github.com/bsm/redislock).
API docs: https://godoc.org/github.com/go-redis/redis.
Examples: https://godoc.org/github.com/go-redis/redis#pkg-examples.
## Installation
go-redis requires a Go version with [Modules](https://github.com/golang/go/wiki/Modules) support and uses import versioning. So please make sure to initialize a Go module before installing go-redis:
``` shell
go mod init github.com/my/repo
go get github.com/go-redis/redis/v7
```
Import:
``` go
import "github.com/go-redis/redis/v7"
```
## Quickstart
``` go
func ExampleNewClient() {
client := redis.NewClient(&redis.Options{
Addr: "localhost:6379",
Password: "", // no password set
DB: 0, // use default DB
})
pong, err := client.Ping().Result()
fmt.Println(pong, err)
// Output: PONG <nil>
}
func ExampleClient() {
client := redis.NewClient(&redis.Options{
Addr: "localhost:6379",
Password: "", // no password set
DB: 0, // use default DB
})
err := client.Set("key", "value", 0).Err()
if err != nil {
panic(err)
}
val, err := client.Get("key").Result()
if err != nil {
panic(err)
}
fmt.Println("key", val)
val2, err := client.Get("key2").Result()
if err == redis.Nil {
fmt.Println("key2 does not exist")
} else if err != nil {
panic(err)
} else {
fmt.Println("key2", val2)
}
// Output: key value
// key2 does not exist
}
```
## Howto
Please go through [examples](https://godoc.org/github.com/go-redis/redis#pkg-examples) to get an idea how to use this package.
## Look and feel
Some corner cases:
``` go
// SET key value EX 10 NX
set, err := client.SetNX("key", "value", 10*time.Second).Result()
// SORT list LIMIT 0 2 ASC
vals, err := client.Sort("list", &redis.Sort{Offset: 0, Count: 2, Order: "ASC"}).Result()
// ZRANGEBYSCORE zset -inf +inf WITHSCORES LIMIT 0 2
vals, err := client.ZRangeByScoreWithScores("zset", &redis.ZRangeBy{
Min: "-inf",
Max: "+inf",
Offset: 0,
Count: 2,
}).Result()
// ZINTERSTORE out 2 zset1 zset2 WEIGHTS 2 3 AGGREGATE SUM
vals, err := client.ZInterStore("out", &redis.ZStore{
Keys: []string{"zset1", "zset2"},
Weights: []int64{2, 3}
}).Result()
// EVAL "return {KEYS[1],ARGV[1]}" 1 "key" "hello"
vals, err := client.Eval("return {KEYS[1],ARGV[1]}", []string{"key"}, "hello").Result()
// custom command
res, err := client.Do("set", "key", "value").Result()
```
## See also
- [Golang PostgreSQL ORM](https://github.com/go-pg/pg)
- [Golang msgpack](https://github.com/vmihailenco/msgpack)
- [Golang message task queue](https://github.com/vmihailenco/taskq)

22
vendor/github.com/go-redis/redis/v7/cluster_commands.go generated vendored
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@@ -1,22 +0,0 @@
package redis
import "sync/atomic"
func (c *ClusterClient) DBSize() *IntCmd {
cmd := NewIntCmd("dbsize")
var size int64
err := c.ForEachMaster(func(master *Client) error {
n, err := master.DBSize().Result()
if err != nil {
return err
}
atomic.AddInt64(&size, n)
return nil
})
if err != nil {
cmd.SetErr(err)
return cmd
}
cmd.val = size
return cmd
}

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vendor/github.com/go-redis/redis/v7/commands.go generated vendored
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vendor/github.com/go-redis/redis/v7/go.mod generated vendored
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@@ -1,15 +0,0 @@
module github.com/go-redis/redis/v7
require (
github.com/golang/protobuf v1.3.2 // indirect
github.com/kr/pretty v0.1.0 // indirect
github.com/onsi/ginkgo v1.10.1
github.com/onsi/gomega v1.7.0
golang.org/x/net v0.0.0-20190923162816-aa69164e4478 // indirect
golang.org/x/sys v0.0.0-20191010194322-b09406accb47 // indirect
golang.org/x/text v0.3.2 // indirect
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
gopkg.in/yaml.v2 v2.2.4 // indirect
)
go 1.11

47
vendor/github.com/go-redis/redis/v7/go.sum generated vendored
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@@ -1,47 +0,0 @@
github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
github.com/onsi/ginkgo v1.10.1 h1:q/mM8GF/n0shIN8SaAZ0V+jnLPzen6WIVZdiwrRlMlo=
github.com/onsi/ginkgo v1.10.1/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
github.com/onsi/gomega v1.7.0 h1:XPnZz8VVBHjVsy1vzJmRwIcSwiUO+JFfrv/xGiigmME=
github.com/onsi/gomega v1.7.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd h1:nTDtHvHSdCn1m6ITfMRqtOd/9+7a3s8RBNOZ3eYZzJA=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190923162816-aa69164e4478 h1:l5EDrHhldLYb3ZRHDUhXF7Om7MvYXnkV9/iQNo1lX6g=
golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f h1:wMNYb4v58l5UBM7MYRLPG6ZhfOqbKu7X5eyFl8ZhKvA=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e h1:o3PsSEY8E4eXWkXrIP9YJALUkVZqzHJT5DOasTyn8Vs=
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20191010194322-b09406accb47 h1:/XfQ9z7ib8eEJX2hdgFTZJ/ntt0swNk5oYBziWeTCvY=
golang.org/x/sys v0.0.0-20191010194322-b09406accb47/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

81
vendor/github.com/go-redis/redis/v7/internal/consistenthash/consistenthash.go generated vendored
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@@ -1,81 +0,0 @@
/*
Copyright 2013 Google Inc.
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 consistenthash provides an implementation of a ring hash.
package consistenthash
import (
"hash/crc32"
"sort"
"strconv"
)
type Hash func(data []byte) uint32
type Map struct {
hash Hash
replicas int
keys []int // Sorted
hashMap map[int]string
}
func New(replicas int, fn Hash) *Map {
m := &Map{
replicas: replicas,
hash: fn,
hashMap: make(map[int]string),
}
if m.hash == nil {
m.hash = crc32.ChecksumIEEE
}
return m
}
// Returns true if there are no items available.
func (m *Map) IsEmpty() bool {
return len(m.keys) == 0
}
// Adds some keys to the hash.
func (m *Map) Add(keys ...string) {
for _, key := range keys {
for i := 0; i < m.replicas; i++ {
hash := int(m.hash([]byte(strconv.Itoa(i) + key)))
m.keys = append(m.keys, hash)
m.hashMap[hash] = key
}
}
sort.Ints(m.keys)
}
// Gets the closest item in the hash to the provided key.
func (m *Map) Get(key string) string {
if m.IsEmpty() {
return ""
}
hash := int(m.hash([]byte(key)))
// Binary search for appropriate replica.
idx := sort.Search(len(m.keys), func(i int) bool { return m.keys[i] >= hash })
// Means we have cycled back to the first replica.
if idx == len(m.keys) {
idx = 0
}
return m.hashMap[m.keys[idx]]
}

24
vendor/github.com/go-redis/redis/v7/internal/internal.go generated vendored
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@@ -1,24 +0,0 @@
package internal
import (
"math/rand"
"time"
)
// Retry backoff with jitter sleep to prevent overloaded conditions during intervals
// https://www.awsarchitectureblog.com/2015/03/backoff.html
func RetryBackoff(retry int, minBackoff, maxBackoff time.Duration) time.Duration {
if retry < 0 {
retry = 0
}
backoff := minBackoff << uint(retry)
if backoff > maxBackoff || backoff < minBackoff {
backoff = maxBackoff
}
if backoff == 0 {
return 0
}
return time.Duration(rand.Int63n(int64(backoff)))
}

8
vendor/github.com/go-redis/redis/v7/internal/log.go generated vendored
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@@ -1,8 +0,0 @@
package internal
import (
"log"
"os"
)
var Logger = log.New(os.Stderr, "redis: ", log.LstdFlags|log.Lshortfile)

112
vendor/github.com/go-redis/redis/v7/internal/pool/pool_sticky.go generated vendored
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@@ -1,112 +0,0 @@
package pool
import (
"context"
"sync"
)
type StickyConnPool struct {
pool *ConnPool
reusable bool
cn *Conn
closed bool
mu sync.Mutex
}
var _ Pooler = (*StickyConnPool)(nil)
func NewStickyConnPool(pool *ConnPool, reusable bool) *StickyConnPool {
return &StickyConnPool{
pool: pool,
reusable: reusable,
}
}
func (p *StickyConnPool) NewConn(context.Context) (*Conn, error) {
panic("not implemented")
}
func (p *StickyConnPool) CloseConn(*Conn) error {
panic("not implemented")
}
func (p *StickyConnPool) Get(ctx context.Context) (*Conn, error) {
p.mu.Lock()
defer p.mu.Unlock()
if p.closed {
return nil, ErrClosed
}
if p.cn != nil {
return p.cn, nil
}
cn, err := p.pool.Get(ctx)
if err != nil {
return nil, err
}
p.cn = cn
return cn, nil
}
func (p *StickyConnPool) putUpstream() {
p.pool.Put(p.cn)
p.cn = nil
}
func (p *StickyConnPool) Put(cn *Conn) {}
func (p *StickyConnPool) removeUpstream(reason error) {
p.pool.Remove(p.cn, reason)
p.cn = nil
}
func (p *StickyConnPool) Remove(cn *Conn, reason error) {
p.removeUpstream(reason)
}
func (p *StickyConnPool) Len() int {
p.mu.Lock()
defer p.mu.Unlock()
if p.cn == nil {
return 0
}
return 1
}
func (p *StickyConnPool) IdleLen() int {
p.mu.Lock()
defer p.mu.Unlock()
if p.cn == nil {
return 1
}
return 0
}
func (p *StickyConnPool) Stats() *Stats {
return nil
}
func (p *StickyConnPool) Close() error {
p.mu.Lock()
defer p.mu.Unlock()
if p.closed {
return ErrClosed
}
p.closed = true
if p.cn != nil {
if p.reusable {
p.putUpstream()
} else {
p.removeUpstream(ErrClosed)
}
}
return nil
}

56
vendor/github.com/go-redis/redis/v7/internal/util.go generated vendored
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@@ -1,56 +0,0 @@
package internal
import (
"context"
"time"
"github.com/go-redis/redis/v7/internal/util"
)
func Sleep(ctx context.Context, dur time.Duration) error {
t := time.NewTimer(dur)
defer t.Stop()
select {
case <-t.C:
return nil
case <-ctx.Done():
return ctx.Err()
}
}
func ToLower(s string) string {
if isLower(s) {
return s
}
b := make([]byte, len(s))
for i := range b {
c := s[i]
if c >= 'A' && c <= 'Z' {
c += 'a' - 'A'
}
b[i] = c
}
return util.BytesToString(b)
}
func isLower(s string) bool {
for i := 0; i < len(s); i++ {
c := s[i]
if c >= 'A' && c <= 'Z' {
return false
}
}
return true
}
func Unwrap(err error) error {
u, ok := err.(interface {
Unwrap() error
})
if !ok {
return nil
}
return u.Unwrap()
}

62
vendor/github.com/go-redis/redis/v7/script.go generated vendored
View File

@@ -1,62 +0,0 @@
package redis
import (
"crypto/sha1"
"encoding/hex"
"io"
"strings"
)
type scripter interface {
Eval(script string, keys []string, args ...interface{}) *Cmd
EvalSha(sha1 string, keys []string, args ...interface{}) *Cmd
ScriptExists(hashes ...string) *BoolSliceCmd
ScriptLoad(script string) *StringCmd
}
var _ scripter = (*Client)(nil)
var _ scripter = (*Ring)(nil)
var _ scripter = (*ClusterClient)(nil)
type Script struct {
src, hash string
}
func NewScript(src string) *Script {
h := sha1.New()
_, _ = io.WriteString(h, src)
return &Script{
src: src,
hash: hex.EncodeToString(h.Sum(nil)),
}
}
func (s *Script) Hash() string {
return s.hash
}
func (s *Script) Load(c scripter) *StringCmd {
return c.ScriptLoad(s.src)
}
func (s *Script) Exists(c scripter) *BoolSliceCmd {
return c.ScriptExists(s.hash)
}
func (s *Script) Eval(c scripter, keys []string, args ...interface{}) *Cmd {
return c.Eval(s.src, keys, args...)
}
func (s *Script) EvalSha(c scripter, keys []string, args ...interface{}) *Cmd {
return c.EvalSha(s.hash, keys, args...)
}
// Run optimistically uses EVALSHA to run the script. If script does not exist
// it is retried using EVAL.
func (s *Script) Run(c scripter, keys []string, args ...interface{}) *Cmd {
r := s.EvalSha(c, keys, args...)
if err := r.Err(); err != nil && strings.HasPrefix(err.Error(), "NOSCRIPT ") {
return s.Eval(c, keys, args...)
}
return r
}

509
vendor/github.com/go-redis/redis/v7/sentinel.go generated vendored
View File

@@ -1,509 +0,0 @@
package redis
import (
"context"
"crypto/tls"
"errors"
"net"
"strings"
"sync"
"time"
"github.com/go-redis/redis/v7/internal"
"github.com/go-redis/redis/v7/internal/pool"
)
//------------------------------------------------------------------------------
// FailoverOptions are used to configure a failover client and should
// be passed to NewFailoverClient.
type FailoverOptions struct {
// The master name.
MasterName string
// A seed list of host:port addresses of sentinel nodes.
SentinelAddrs []string
SentinelUsername string
SentinelPassword string
// Following options are copied from Options struct.
Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
OnConnect func(*Conn) error
Username string
Password string
DB int
MaxRetries int
MinRetryBackoff time.Duration
MaxRetryBackoff time.Duration
DialTimeout time.Duration
ReadTimeout time.Duration
WriteTimeout time.Duration
PoolSize int
MinIdleConns int
MaxConnAge time.Duration
PoolTimeout time.Duration
IdleTimeout time.Duration
IdleCheckFrequency time.Duration
TLSConfig *tls.Config
}
func (opt *FailoverOptions) options() *Options {
return &Options{
Addr: "FailoverClient",
Dialer: opt.Dialer,
OnConnect: opt.OnConnect,
DB: opt.DB,
Username: opt.Username,
Password: opt.Password,
MaxRetries: opt.MaxRetries,
MinRetryBackoff: opt.MinRetryBackoff,
MaxRetryBackoff: opt.MaxRetryBackoff,
DialTimeout: opt.DialTimeout,
ReadTimeout: opt.ReadTimeout,
WriteTimeout: opt.WriteTimeout,
PoolSize: opt.PoolSize,
PoolTimeout: opt.PoolTimeout,
IdleTimeout: opt.IdleTimeout,
IdleCheckFrequency: opt.IdleCheckFrequency,
MinIdleConns: opt.MinIdleConns,
MaxConnAge: opt.MaxConnAge,
TLSConfig: opt.TLSConfig,
}
}
// NewFailoverClient returns a Redis client that uses Redis Sentinel
// for automatic failover. It's safe for concurrent use by multiple
// goroutines.
func NewFailoverClient(failoverOpt *FailoverOptions) *Client {
opt := failoverOpt.options()
opt.init()
failover := &sentinelFailover{
masterName: failoverOpt.MasterName,
sentinelAddrs: failoverOpt.SentinelAddrs,
username: failoverOpt.SentinelUsername,
password: failoverOpt.SentinelPassword,
opt: opt,
}
c := Client{
baseClient: newBaseClient(opt, failover.Pool()),
ctx: context.Background(),
}
c.cmdable = c.Process
c.onClose = failover.Close
return &c
}
//------------------------------------------------------------------------------
type SentinelClient struct {
*baseClient
ctx context.Context
}
func NewSentinelClient(opt *Options) *SentinelClient {
opt.init()
c := &SentinelClient{
baseClient: &baseClient{
opt: opt,
connPool: newConnPool(opt),
},
ctx: context.Background(),
}
return c
}
func (c *SentinelClient) Context() context.Context {
return c.ctx
}
func (c *SentinelClient) WithContext(ctx context.Context) *SentinelClient {
if ctx == nil {
panic("nil context")
}
clone := *c
clone.ctx = ctx
return &clone
}
func (c *SentinelClient) Process(cmd Cmder) error {
return c.ProcessContext(c.ctx, cmd)
}
func (c *SentinelClient) ProcessContext(ctx context.Context, cmd Cmder) error {
return c.baseClient.process(ctx, cmd)
}
func (c *SentinelClient) pubSub() *PubSub {
pubsub := &PubSub{
opt: c.opt,
newConn: func(channels []string) (*pool.Conn, error) {
return c.newConn(context.TODO())
},
closeConn: c.connPool.CloseConn,
}
pubsub.init()
return pubsub
}
// Ping is used to test if a connection is still alive, or to
// measure latency.
func (c *SentinelClient) Ping() *StringCmd {
cmd := NewStringCmd("ping")
_ = c.Process(cmd)
return cmd
}
// Subscribe subscribes the client to the specified channels.
// Channels can be omitted to create empty subscription.
func (c *SentinelClient) Subscribe(channels ...string) *PubSub {
pubsub := c.pubSub()
if len(channels) > 0 {
_ = pubsub.Subscribe(channels...)
}
return pubsub
}
// PSubscribe subscribes the client to the given patterns.
// Patterns can be omitted to create empty subscription.
func (c *SentinelClient) PSubscribe(channels ...string) *PubSub {
pubsub := c.pubSub()
if len(channels) > 0 {
_ = pubsub.PSubscribe(channels...)
}
return pubsub
}
func (c *SentinelClient) GetMasterAddrByName(name string) *StringSliceCmd {
cmd := NewStringSliceCmd("sentinel", "get-master-addr-by-name", name)
_ = c.Process(cmd)
return cmd
}
func (c *SentinelClient) Sentinels(name string) *SliceCmd {
cmd := NewSliceCmd("sentinel", "sentinels", name)
_ = c.Process(cmd)
return cmd
}
// Failover forces a failover as if the master was not reachable, and without
// asking for agreement to other Sentinels.
func (c *SentinelClient) Failover(name string) *StatusCmd {
cmd := NewStatusCmd("sentinel", "failover", name)
_ = c.Process(cmd)
return cmd
}
// Reset resets all the masters with matching name. The pattern argument is a
// glob-style pattern. The reset process clears any previous state in a master
// (including a failover in progress), and removes every slave and sentinel
// already discovered and associated with the master.
func (c *SentinelClient) Reset(pattern string) *IntCmd {
cmd := NewIntCmd("sentinel", "reset", pattern)
_ = c.Process(cmd)
return cmd
}
// FlushConfig forces Sentinel to rewrite its configuration on disk, including
// the current Sentinel state.
func (c *SentinelClient) FlushConfig() *StatusCmd {
cmd := NewStatusCmd("sentinel", "flushconfig")
_ = c.Process(cmd)
return cmd
}
// Master shows the state and info of the specified master.
func (c *SentinelClient) Master(name string) *StringStringMapCmd {
cmd := NewStringStringMapCmd("sentinel", "master", name)
_ = c.Process(cmd)
return cmd
}
// Masters shows a list of monitored masters and their state.
func (c *SentinelClient) Masters() *SliceCmd {
cmd := NewSliceCmd("sentinel", "masters")
_ = c.Process(cmd)
return cmd
}
// Slaves shows a list of slaves for the specified master and their state.
func (c *SentinelClient) Slaves(name string) *SliceCmd {
cmd := NewSliceCmd("sentinel", "slaves", name)
_ = c.Process(cmd)
return cmd
}
// CkQuorum checks if the current Sentinel configuration is able to reach the
// quorum needed to failover a master, and the majority needed to authorize the
// failover. This command should be used in monitoring systems to check if a
// Sentinel deployment is ok.
func (c *SentinelClient) CkQuorum(name string) *StringCmd {
cmd := NewStringCmd("sentinel", "ckquorum", name)
_ = c.Process(cmd)
return cmd
}
// Monitor tells the Sentinel to start monitoring a new master with the specified
// name, ip, port, and quorum.
func (c *SentinelClient) Monitor(name, ip, port, quorum string) *StringCmd {
cmd := NewStringCmd("sentinel", "monitor", name, ip, port, quorum)
_ = c.Process(cmd)
return cmd
}
// Set is used in order to change configuration parameters of a specific master.
func (c *SentinelClient) Set(name, option, value string) *StringCmd {
cmd := NewStringCmd("sentinel", "set", name, option, value)
_ = c.Process(cmd)
return cmd
}
// Remove is used in order to remove the specified master: the master will no
// longer be monitored, and will totally be removed from the internal state of
// the Sentinel.
func (c *SentinelClient) Remove(name string) *StringCmd {
cmd := NewStringCmd("sentinel", "remove", name)
_ = c.Process(cmd)
return cmd
}
type sentinelFailover struct {
sentinelAddrs []string
opt *Options
username string
password string
pool *pool.ConnPool
poolOnce sync.Once
mu sync.RWMutex
masterName string
_masterAddr string
sentinel *SentinelClient
pubsub *PubSub
}
func (c *sentinelFailover) Close() error {
c.mu.Lock()
defer c.mu.Unlock()
if c.sentinel != nil {
return c.closeSentinel()
}
return nil
}
func (c *sentinelFailover) closeSentinel() error {
firstErr := c.pubsub.Close()
c.pubsub = nil
err := c.sentinel.Close()
if err != nil && firstErr == nil {
firstErr = err
}
c.sentinel = nil
return firstErr
}
func (c *sentinelFailover) Pool() *pool.ConnPool {
c.poolOnce.Do(func() {
opt := *c.opt
opt.Dialer = c.dial
c.pool = newConnPool(&opt)
})
return c.pool
}
func (c *sentinelFailover) dial(ctx context.Context, network, _ string) (net.Conn, error) {
addr, err := c.MasterAddr()
if err != nil {
return nil, err
}
if c.opt.Dialer != nil {
return c.opt.Dialer(ctx, network, addr)
}
return net.DialTimeout("tcp", addr, c.opt.DialTimeout)
}
func (c *sentinelFailover) MasterAddr() (string, error) {
addr, err := c.masterAddr()
if err != nil {
return "", err
}
c.switchMaster(addr)
return addr, nil
}
func (c *sentinelFailover) masterAddr() (string, error) {
c.mu.RLock()
sentinel := c.sentinel
c.mu.RUnlock()
if sentinel != nil {
addr := c.getMasterAddr(sentinel)
if addr != "" {
return addr, nil
}
}
c.mu.Lock()
defer c.mu.Unlock()
if c.sentinel != nil {
addr := c.getMasterAddr(c.sentinel)
if addr != "" {
return addr, nil
}
_ = c.closeSentinel()
}
for i, sentinelAddr := range c.sentinelAddrs {
sentinel := NewSentinelClient(&Options{
Addr: sentinelAddr,
Dialer: c.opt.Dialer,
Username: c.username,
Password: c.password,
MaxRetries: c.opt.MaxRetries,
DialTimeout: c.opt.DialTimeout,
ReadTimeout: c.opt.ReadTimeout,
WriteTimeout: c.opt.WriteTimeout,
PoolSize: c.opt.PoolSize,
PoolTimeout: c.opt.PoolTimeout,
IdleTimeout: c.opt.IdleTimeout,
IdleCheckFrequency: c.opt.IdleCheckFrequency,
TLSConfig: c.opt.TLSConfig,
})
masterAddr, err := sentinel.GetMasterAddrByName(c.masterName).Result()
if err != nil {
internal.Logger.Printf("sentinel: GetMasterAddrByName master=%q failed: %s",
c.masterName, err)
_ = sentinel.Close()
continue
}
// Push working sentinel to the top.
c.sentinelAddrs[0], c.sentinelAddrs[i] = c.sentinelAddrs[i], c.sentinelAddrs[0]
c.setSentinel(sentinel)
addr := net.JoinHostPort(masterAddr[0], masterAddr[1])
return addr, nil
}
return "", errors.New("redis: all sentinels are unreachable")
}
func (c *sentinelFailover) getMasterAddr(sentinel *SentinelClient) string {
addr, err := sentinel.GetMasterAddrByName(c.masterName).Result()
if err != nil {
internal.Logger.Printf("sentinel: GetMasterAddrByName name=%q failed: %s",
c.masterName, err)
return ""
}
return net.JoinHostPort(addr[0], addr[1])
}
func (c *sentinelFailover) switchMaster(addr string) {
c.mu.RLock()
masterAddr := c._masterAddr
c.mu.RUnlock()
if masterAddr == addr {
return
}
c.mu.Lock()
defer c.mu.Unlock()
if c._masterAddr == addr {
return
}
internal.Logger.Printf("sentinel: new master=%q addr=%q",
c.masterName, addr)
_ = c.Pool().Filter(func(cn *pool.Conn) bool {
return cn.RemoteAddr().String() != addr
})
c._masterAddr = addr
}
func (c *sentinelFailover) setSentinel(sentinel *SentinelClient) {
if c.sentinel != nil {
panic("not reached")
}
c.sentinel = sentinel
c.discoverSentinels()
c.pubsub = sentinel.Subscribe("+switch-master")
go c.listen(c.pubsub)
}
func (c *sentinelFailover) discoverSentinels() {
sentinels, err := c.sentinel.Sentinels(c.masterName).Result()
if err != nil {
internal.Logger.Printf("sentinel: Sentinels master=%q failed: %s", c.masterName, err)
return
}
for _, sentinel := range sentinels {
vals := sentinel.([]interface{})
for i := 0; i < len(vals); i += 2 {
key := vals[i].(string)
if key == "name" {
sentinelAddr := vals[i+1].(string)
if !contains(c.sentinelAddrs, sentinelAddr) {
internal.Logger.Printf("sentinel: discovered new sentinel=%q for master=%q",
sentinelAddr, c.masterName)
c.sentinelAddrs = append(c.sentinelAddrs, sentinelAddr)
}
}
}
}
}
func (c *sentinelFailover) listen(pubsub *PubSub) {
ch := pubsub.Channel()
for {
msg, ok := <-ch
if !ok {
break
}
if msg.Channel == "+switch-master" {
parts := strings.Split(msg.Payload, " ")
if parts[0] != c.masterName {
internal.Logger.Printf("sentinel: ignore addr for master=%q", parts[0])
continue
}
addr := net.JoinHostPort(parts[3], parts[4])
c.switchMaster(addr)
}
}
}
func contains(slice []string, str string) bool {
for _, s := range slice {
if s == str {
return true
}
}
return false
}

1
vendor/github.com/go-redis/redis/v7/.gitignore → vendor/github.com/go-redis/redis/v8/.gitignore generated vendored
View File

@@ -1,2 +1,3 @@
*.rdb
testdata/*/
.idea/

9
vendor/github.com/go-redis/redis/v7/.golangci.yml → vendor/github.com/go-redis/redis/v8/.golangci.yml generated vendored
View File

@@ -7,9 +7,18 @@ linters:
disable:
- funlen
- gochecknoglobals
- gochecknoinits
- gocognit
- goconst
- godox
- gosec
- maligned
- wsl
- gomnd
- goerr113
- exhaustive
- nestif
- nlreturn
- exhaustivestruct
- wrapcheck
- errorlint

4
vendor/github.com/go-redis/redis/v8/.prettierrc generated vendored Normal file
View File

@@ -0,0 +1,4 @@
semi: false
singleQuote: true
proseWrap: always
printWidth: 100

20
vendor/github.com/go-redis/redis/v8/.travis.yml generated vendored Normal file
View File

@@ -0,0 +1,20 @@
dist: xenial
language: go
services:
- redis-server
go:
- 1.14.x
- 1.15.x
- tip
matrix:
allow_failures:
- go: tip
go_import_path: github.com/go-redis/redis
before_install:
- curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s --
-b $(go env GOPATH)/bin v1.32.2

5
vendor/github.com/go-redis/redis/v8/CHANGELOG.md generated vendored Normal file
View File

@@ -0,0 +1,5 @@
# Changelog
> :heart: [**Uptrace.dev** - distributed traces, logs, and errors in one place](https://uptrace.dev)
See https://redis.uptrace.dev/changelog/

0
vendor/github.com/go-redis/redis/v7/LICENSE → vendor/github.com/go-redis/redis/v8/LICENSE generated vendored
View File

7
vendor/github.com/go-redis/redis/v7/Makefile → vendor/github.com/go-redis/redis/v8/Makefile generated vendored
View File

@@ -3,6 +3,7 @@ all: testdeps
go test ./... -short -race
go test ./... -run=NONE -bench=. -benchmem
env GOOS=linux GOARCH=386 go test ./...
go vet
golangci-lint run
testdeps: testdata/redis/src/redis-server
@@ -18,3 +19,9 @@ testdata/redis:
testdata/redis/src/redis-server: testdata/redis
cd $< && make all
tag:
git tag $(VERSION)
git tag extra/rediscmd/$(VERSION)
git tag extra/redisotel/$(VERSION)
git tag extra/rediscensus/$(VERSION)

159
vendor/github.com/go-redis/redis/v8/README.md generated vendored Normal file
View File

@@ -0,0 +1,159 @@
# Redis client for Golang
[![Build Status](https://travis-ci.org/go-redis/redis.png?branch=master)](https://travis-ci.org/go-redis/redis)
[![PkgGoDev](https://pkg.go.dev/badge/github.com/go-redis/redis/v8)](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc)
[![Documentation](https://img.shields.io/badge/redis-documentation-informational)](https://redis.uptrace.dev/)
[![Chat](https://discordapp.com/api/guilds/752070105847955518/widget.png)](https://discord.gg/rWtp5Aj)
> :heart: [**Uptrace.dev** - distributed traces, logs, and errors in one place](https://uptrace.dev)
- Join [Discord](https://discord.gg/rWtp5Aj) to ask questions.
- [Documentation](https://redis.uptrace.dev)
- [Reference](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc)
- [Examples](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#pkg-examples)
- [RealWorld example app](https://github.com/uptrace/go-treemux-realworld-example-app)
## Ecosystem
- [Redis Mock](https://github.com/go-redis/redismock).
- [Distributed Locks](https://github.com/bsm/redislock).
- [Redis Cache](https://github.com/go-redis/cache).
- [Rate limiting](https://github.com/go-redis/redis_rate).
## Features
- Redis 3 commands except QUIT, MONITOR, and SYNC.
- Automatic connection pooling with
[circuit breaker](https://en.wikipedia.org/wiki/Circuit_breaker_design_pattern) support.
- [Pub/Sub](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#PubSub).
- [Transactions](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-Client-TxPipeline).
- [Pipeline](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-Client-Pipeline) and
[TxPipeline](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-Client-TxPipeline).
- [Scripting](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#Script).
- [Timeouts](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#Options).
- [Redis Sentinel](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#NewFailoverClient).
- [Redis Cluster](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#NewClusterClient).
- [Cluster of Redis Servers](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-NewClusterClient--ManualSetup)
without using cluster mode and Redis Sentinel.
- [Ring](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#NewRing).
- [Instrumentation](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#ex-package--Instrumentation).
## Installation
go-redis supports 2 last Go versions and requires a Go version with
[modules](https://github.com/golang/go/wiki/Modules) support. So make sure to initialize a Go
module:
```shell
go mod init github.com/my/repo
```
And then install go-redis/v8 (note _v8_ in the import; omitting it is a popular mistake):
```shell
go get github.com/go-redis/redis/v8
```
## Quickstart
```go
import (
"context"
"github.com/go-redis/redis/v8"
)
var ctx = context.Background()
func ExampleClient() {
rdb := redis.NewClient(&redis.Options{
Addr: "localhost:6379",
Password: "", // no password set
DB: 0, // use default DB
})
err := rdb.Set(ctx, "key", "value", 0).Err()
if err != nil {
panic(err)
}
val, err := rdb.Get(ctx, "key").Result()
if err != nil {
panic(err)
}
fmt.Println("key", val)
val2, err := rdb.Get(ctx, "key2").Result()
if err == redis.Nil {
fmt.Println("key2 does not exist")
} else if err != nil {
panic(err)
} else {
fmt.Println("key2", val2)
}
// Output: key value
// key2 does not exist
}
```
## Look and feel
Some corner cases:
```go
// SET key value EX 10 NX
set, err := rdb.SetNX(ctx, "key", "value", 10*time.Second).Result()
// SET key value keepttl NX
set, err := rdb.SetNX(ctx, "key", "value", redis.KeepTTL).Result()
// SORT list LIMIT 0 2 ASC
vals, err := rdb.Sort(ctx, "list", &redis.Sort{Offset: 0, Count: 2, Order: "ASC"}).Result()
// ZRANGEBYSCORE zset -inf +inf WITHSCORES LIMIT 0 2
vals, err := rdb.ZRangeByScoreWithScores(ctx, "zset", &redis.ZRangeBy{
Min: "-inf",
Max: "+inf",
Offset: 0,
Count: 2,
}).Result()
// ZINTERSTORE out 2 zset1 zset2 WEIGHTS 2 3 AGGREGATE SUM
vals, err := rdb.ZInterStore(ctx, "out", &redis.ZStore{
Keys: []string{"zset1", "zset2"},
Weights: []int64{2, 3}
}).Result()
// EVAL "return {KEYS[1],ARGV[1]}" 1 "key" "hello"
vals, err := rdb.Eval(ctx, "return {KEYS[1],ARGV[1]}", []string{"key"}, "hello").Result()
// custom command
res, err := rdb.Do(ctx, "set", "key", "value").Result()
```
## Run the test
go-redis will start a redis-server and run the test cases.
The paths of redis-server bin file and redis config file are definded in `main_test.go`:
```
var (
redisServerBin, _ = filepath.Abs(filepath.Join("testdata", "redis", "src", "redis-server"))
redisServerConf, _ = filepath.Abs(filepath.Join("testdata", "redis", "redis.conf"))
)
```
For local testing, you can change the variables to refer to your local files, or create a soft link to the corresponding folder for redis-server and copy the config file to `testdata/redis/`:
```
ln -s /usr/bin/redis-server ./go-redis/testdata/redis/src
cp ./go-redis/testdata/redis.conf ./go-redis/testdata/redis/
```
Lastly, run:
```
go test
```
## See also
- [Fast and flexible HTTP router](https://github.com/vmihailenco/treemux)
- [Golang PostgreSQL ORM](https://github.com/go-pg/pg)
- [Golang msgpack](https://github.com/vmihailenco/msgpack)
- [Golang message task queue](https://github.com/vmihailenco/taskq)

451
vendor/github.com/go-redis/redis/v7/cluster.go → vendor/github.com/go-redis/redis/v8/cluster.go generated vendored
View File

File diff suppressed because it is too large Load Diff

25
vendor/github.com/go-redis/redis/v8/cluster_commands.go generated vendored Normal file
View File

@@ -0,0 +1,25 @@
package redis
import (
"context"
"sync/atomic"
)
func (c *ClusterClient) DBSize(ctx context.Context) *IntCmd {
cmd := NewIntCmd(ctx, "dbsize")
var size int64
err := c.ForEachMaster(ctx, func(ctx context.Context, master *Client) error {
n, err := master.DBSize(ctx).Result()
if err != nil {
return err
}
atomic.AddInt64(&size, n)
return nil
})
if err != nil {
cmd.SetErr(err)
return cmd
}
cmd.val = size
return cmd
}

840
vendor/github.com/go-redis/redis/v7/command.go → vendor/github.com/go-redis/redis/v8/command.go generated vendored
View File

File diff suppressed because it is too large Load Diff

2790
vendor/github.com/go-redis/redis/v8/commands.go generated vendored Normal file
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File diff suppressed because it is too large Load Diff

0
vendor/github.com/go-redis/redis/v7/doc.go → vendor/github.com/go-redis/redis/v8/doc.go generated vendored
View File

35
vendor/github.com/go-redis/redis/v7/error.go → vendor/github.com/go-redis/redis/v8/error.go generated vendored
View File

@@ -6,8 +6,8 @@ import (
"net"
"strings"
"github.com/go-redis/redis/v7/internal/pool"
"github.com/go-redis/redis/v7/internal/proto"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/proto"
)
var ErrClosed = pool.ErrClosed
@@ -24,15 +24,16 @@ type Error interface {
var _ Error = proto.RedisError("")
func isRetryableError(err error, retryTimeout bool) bool {
func shouldRetry(err error, retryTimeout bool) bool {
switch err {
case io.EOF, io.ErrUnexpectedEOF:
return true
case nil, context.Canceled, context.DeadlineExceeded:
return false
case io.EOF:
return true
}
if netErr, ok := err.(net.Error); ok {
if netErr.Timeout() {
if v, ok := err.(timeoutError); ok {
if v.Timeout() {
return retryTimeout
}
return true
@@ -51,6 +52,10 @@ func isRetryableError(err error, retryTimeout bool) bool {
if strings.HasPrefix(s, "CLUSTERDOWN ") {
return true
}
if strings.HasPrefix(s, "TRYAGAIN ") {
return true
}
return false
}
@@ -60,19 +65,25 @@ func isRedisError(err error) bool {
}
func isBadConn(err error, allowTimeout bool) bool {
if err == nil {
switch err {
case nil:
return false
case context.Canceled, context.DeadlineExceeded:
return true
}
if isRedisError(err) {
// Close connections in read only state in case domain addr is used
// and domain resolves to a different Redis Server. See #790.
return isReadOnlyError(err)
}
if allowTimeout {
if netErr, ok := err.(net.Error); ok && netErr.Timeout() {
return false
return !netErr.Temporary()
}
}
return true
}
@@ -106,3 +117,9 @@ func isLoadingError(err error) bool {
func isReadOnlyError(err error) bool {
return strings.HasPrefix(err.Error(), "READONLY ")
}
//------------------------------------------------------------------------------
type timeoutError interface {
Timeout() bool
}

11
vendor/github.com/go-redis/redis/v8/go.mod generated vendored Normal file
View File

@@ -0,0 +1,11 @@
module github.com/go-redis/redis/v8
go 1.13
require (
github.com/cespare/xxhash/v2 v2.1.1
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f
github.com/onsi/ginkgo v1.15.0
github.com/onsi/gomega v1.10.5
go.opentelemetry.io/otel v0.16.0
)

97
vendor/github.com/go-redis/redis/v8/go.sum generated vendored Normal file
View File

@@ -0,0 +1,97 @@
github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
github.com/golang/protobuf v1.4.2 h1:+Z5KGCizgyZCbGh1KZqA0fcLLkwbsjIzS4aV2v7wJX0=
github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.4 h1:L8R9j+yAqZuZjsqh/z+F1NCffTKKLShY6zXTItVIZ8M=
github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
github.com/nxadm/tail v1.4.4 h1:DQuhQpB1tVlglWS2hLQ5OV6B5r8aGxSrPc5Qo6uTN78=
github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
github.com/onsi/ginkgo v1.12.1/go.mod h1:zj2OWP4+oCPe1qIXoGWkgMRwljMUYCdkwsT2108oapk=
github.com/onsi/ginkgo v1.14.2 h1:8mVmC9kjFFmA8H4pKMUhcblgifdkOIXPvbhN1T36q1M=
github.com/onsi/ginkgo v1.14.2/go.mod h1:iSB4RoI2tjJc9BBv4NKIKWKya62Rps+oPG/Lv9klQyY=
github.com/onsi/ginkgo v1.15.0/go.mod h1:hF8qUzuuC8DJGygJH3726JnCZX4MYbRB8yFfISqnKUg=
github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY=
github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
github.com/onsi/gomega v1.10.4 h1:NiTx7EEvBzu9sFOD1zORteLSt3o8gnlvZZwSE9TnY9U=
github.com/onsi/gomega v1.10.4/go.mod h1:g/HbgYopi++010VEqkFgJHKC09uJiW9UkXvMUuKHUCQ=
github.com/onsi/gomega v1.10.5/go.mod h1:gza4q3jKQJijlu05nKWRCW/GavJumGt8aNRxWg7mt48=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
go.opentelemetry.io/otel v0.16.0 h1:uIWEbdeb4vpKPGITLsRVUS44L5oDbDUCZxn8lkxhmgw=
go.opentelemetry.io/otel v0.16.0/go.mod h1:e4GKElweB8W2gWUqbghw0B8t5MCTccc9212eNHnOHwA=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb h1:eBmm0M9fYhWpKZLjQUUKka/LtIxf46G4fxeEz5KJr9U=
golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190904154756-749cb33beabd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f h1:+Nyd8tzPX9R7BWHguqsrbFdRx3WQ/1ib8I44HXV5yTA=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

56
vendor/github.com/go-redis/redis/v8/internal/arg.go generated vendored Normal file
View File

@@ -0,0 +1,56 @@
package internal
import (
"fmt"
"strconv"
"time"
)
func AppendArg(b []byte, v interface{}) []byte {
switch v := v.(type) {
case nil:
return append(b, "<nil>"...)
case string:
return appendUTF8String(b, Bytes(v))
case []byte:
return appendUTF8String(b, v)
case int:
return strconv.AppendInt(b, int64(v), 10)
case int8:
return strconv.AppendInt(b, int64(v), 10)
case int16:
return strconv.AppendInt(b, int64(v), 10)
case int32:
return strconv.AppendInt(b, int64(v), 10)
case int64:
return strconv.AppendInt(b, v, 10)
case uint:
return strconv.AppendUint(b, uint64(v), 10)
case uint8:
return strconv.AppendUint(b, uint64(v), 10)
case uint16:
return strconv.AppendUint(b, uint64(v), 10)
case uint32:
return strconv.AppendUint(b, uint64(v), 10)
case uint64:
return strconv.AppendUint(b, v, 10)
case float32:
return strconv.AppendFloat(b, float64(v), 'f', -1, 64)
case float64:
return strconv.AppendFloat(b, v, 'f', -1, 64)
case bool:
if v {
return append(b, "true"...)
}
return append(b, "false"...)
case time.Time:
return v.AppendFormat(b, time.RFC3339Nano)
default:
return append(b, fmt.Sprint(v)...)
}
}
func appendUTF8String(dst []byte, src []byte) []byte {
dst = append(dst, src...)
return dst
}

3
vendor/github.com/go-redis/redis/v7/internal/hashtag/hashtag.go → vendor/github.com/go-redis/redis/v8/internal/hashtag/hashtag.go generated vendored
View File

@@ -1,8 +1,9 @@
package hashtag
import (
"math/rand"
"strings"
"github.com/go-redis/redis/v8/internal/rand"
)
const slotNumber = 16384

151
vendor/github.com/go-redis/redis/v8/internal/hscan/hscan.go generated vendored Normal file
View File

@@ -0,0 +1,151 @@
package hscan
import (
"errors"
"fmt"
"reflect"
"strconv"
)
// decoderFunc represents decoding functions for default built-in types.
type decoderFunc func(reflect.Value, string) error
var (
// List of built-in decoders indexed by their numeric constant values (eg: reflect.Bool = 1).
decoders = []decoderFunc{
reflect.Bool: decodeBool,
reflect.Int: decodeInt,
reflect.Int8: decodeInt,
reflect.Int16: decodeInt,
reflect.Int32: decodeInt,
reflect.Int64: decodeInt,
reflect.Uint: decodeUint,
reflect.Uint8: decodeUint,
reflect.Uint16: decodeUint,
reflect.Uint32: decodeUint,
reflect.Uint64: decodeUint,
reflect.Float32: decodeFloat,
reflect.Float64: decodeFloat,
reflect.Complex64: decodeUnsupported,
reflect.Complex128: decodeUnsupported,
reflect.Array: decodeUnsupported,
reflect.Chan: decodeUnsupported,
reflect.Func: decodeUnsupported,
reflect.Interface: decodeUnsupported,
reflect.Map: decodeUnsupported,
reflect.Ptr: decodeUnsupported,
reflect.Slice: decodeSlice,
reflect.String: decodeString,
reflect.Struct: decodeUnsupported,
reflect.UnsafePointer: decodeUnsupported,
}
// Global map of struct field specs that is populated once for every new
// struct type that is scanned. This caches the field types and the corresponding
// decoder functions to avoid iterating through struct fields on subsequent scans.
globalStructMap = newStructMap()
)
func Struct(dst interface{}) (StructValue, error) {
v := reflect.ValueOf(dst)
// The dstination to scan into should be a struct pointer.
if v.Kind() != reflect.Ptr || v.IsNil() {
return StructValue{}, fmt.Errorf("redis.Scan(non-pointer %T)", dst)
}
v = v.Elem()
if v.Kind() != reflect.Struct {
return StructValue{}, fmt.Errorf("redis.Scan(non-struct %T)", dst)
}
return StructValue{
spec: globalStructMap.get(v.Type()),
value: v,
}, nil
}
// Scan scans the results from a key-value Redis map result set to a destination struct.
// The Redis keys are matched to the struct's field with the `redis` tag.
func Scan(dst interface{}, keys []interface{}, vals []interface{}) error {
if len(keys) != len(vals) {
return errors.New("args should have the same number of keys and vals")
}
strct, err := Struct(dst)
if err != nil {
return err
}
// Iterate through the (key, value) sequence.
for i := 0; i < len(vals); i++ {
key, ok := keys[i].(string)
if !ok {
continue
}
val, ok := vals[i].(string)
if !ok {
continue
}
if err := strct.Scan(key, val); err != nil {
return err
}
}
return nil
}
func decodeBool(f reflect.Value, s string) error {
b, err := strconv.ParseBool(s)
if err != nil {
return err
}
f.SetBool(b)
return nil
}
func decodeInt(f reflect.Value, s string) error {
v, err := strconv.ParseInt(s, 10, 0)
if err != nil {
return err
}
f.SetInt(v)
return nil
}
func decodeUint(f reflect.Value, s string) error {
v, err := strconv.ParseUint(s, 10, 0)
if err != nil {
return err
}
f.SetUint(v)
return nil
}
func decodeFloat(f reflect.Value, s string) error {
v, err := strconv.ParseFloat(s, 0)
if err != nil {
return err
}
f.SetFloat(v)
return nil
}
func decodeString(f reflect.Value, s string) error {
f.SetString(s)
return nil
}
func decodeSlice(f reflect.Value, s string) error {
// []byte slice ([]uint8).
if f.Type().Elem().Kind() == reflect.Uint8 {
f.SetBytes([]byte(s))
}
return nil
}
func decodeUnsupported(v reflect.Value, s string) error {
return fmt.Errorf("redis.Scan(unsupported %s)", v.Type())
}

87
vendor/github.com/go-redis/redis/v8/internal/hscan/structmap.go generated vendored Normal file
View File

@@ -0,0 +1,87 @@
package hscan
import (
"reflect"
"strings"
"sync"
)
// structMap contains the map of struct fields for target structs
// indexed by the struct type.
type structMap struct {
m sync.Map
}
func newStructMap() *structMap {
return new(structMap)
}
func (s *structMap) get(t reflect.Type) *structSpec {
if v, ok := s.m.Load(t); ok {
return v.(*structSpec)
}
spec := newStructSpec(t, "redis")
s.m.Store(t, spec)
return spec
}
//------------------------------------------------------------------------------
// structSpec contains the list of all fields in a target struct.
type structSpec struct {
m map[string]*structField
}
func (s *structSpec) set(tag string, sf *structField) {
s.m[tag] = sf
}
func newStructSpec(t reflect.Type, fieldTag string) *structSpec {
out := &structSpec{
m: make(map[string]*structField),
}
num := t.NumField()
for i := 0; i < num; i++ {
f := t.Field(i)
tag := f.Tag.Get(fieldTag)
if tag == "" || tag == "-" {
continue
}
tag = strings.Split(tag, ",")[0]
if tag == "" {
continue
}
// Use the built-in decoder.
out.set(tag, &structField{index: i, fn: decoders[f.Type.Kind()]})
}
return out
}
//------------------------------------------------------------------------------
// structField represents a single field in a target struct.
type structField struct {
index int
fn decoderFunc
}
//------------------------------------------------------------------------------
type StructValue struct {
spec *structSpec
value reflect.Value
}
func (s StructValue) Scan(key string, value string) error {
field, ok := s.spec.m[key]
if !ok {
return nil
}
return field.fn(s.value.Field(field.index), value)
}

33
vendor/github.com/go-redis/redis/v8/internal/instruments.go generated vendored Normal file
View File

@@ -0,0 +1,33 @@
package internal
import (
"context"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/metric"
)
var (
// WritesCounter is a count of write commands performed.
WritesCounter metric.Int64Counter
// NewConnectionsCounter is a count of new connections.
NewConnectionsCounter metric.Int64Counter
)
func init() {
defer func() {
if r := recover(); r != nil {
Logger.Printf(context.Background(), "Error creating meter github.com/go-redis/redis for Instruments", r)
}
}()
meter := metric.Must(otel.Meter("github.com/go-redis/redis"))
WritesCounter = meter.NewInt64Counter("redis.writes",
metric.WithDescription("the number of writes initiated"),
)
NewConnectionsCounter = meter.NewInt64Counter("redis.new_connections",
metric.WithDescription("the number of connections created"),
)
}

29
vendor/github.com/go-redis/redis/v8/internal/internal.go generated vendored Normal file
View File

@@ -0,0 +1,29 @@
package internal
import (
"time"
"github.com/go-redis/redis/v8/internal/rand"
)
func RetryBackoff(retry int, minBackoff, maxBackoff time.Duration) time.Duration {
if retry < 0 {
panic("not reached")
}
if minBackoff == 0 {
return 0
}
d := minBackoff << uint(retry)
if d < minBackoff {
return maxBackoff
}
d = minBackoff + time.Duration(rand.Int63n(int64(d)))
if d > maxBackoff || d < minBackoff {
d = maxBackoff
}
return d
}

24
vendor/github.com/go-redis/redis/v8/internal/log.go generated vendored Normal file
View File

@@ -0,0 +1,24 @@
package internal
import (
"context"
"fmt"
"log"
"os"
)
type Logging interface {
Printf(ctx context.Context, format string, v ...interface{})
}
type logger struct {
log *log.Logger
}
func (l *logger) Printf(ctx context.Context, format string, v ...interface{}) {
_ = l.log.Output(2, fmt.Sprintf(format, v...))
}
var Logger Logging = &logger{
log: log.New(os.Stderr, "redis: ", log.LstdFlags|log.Lshortfile),
}

0
vendor/github.com/go-redis/redis/v7/internal/once.go → vendor/github.com/go-redis/redis/v8/internal/once.go generated vendored
View File

62
vendor/github.com/go-redis/redis/v7/internal/pool/conn.go → vendor/github.com/go-redis/redis/v8/internal/pool/conn.go generated vendored
View File

@@ -1,26 +1,30 @@
package pool
import (
"bufio"
"context"
"net"
"sync/atomic"
"time"
"github.com/go-redis/redis/v7/internal/proto"
"github.com/go-redis/redis/v8/internal"
"github.com/go-redis/redis/v8/internal/proto"
"go.opentelemetry.io/otel/trace"
)
var noDeadline = time.Time{}
type Conn struct {
usedAt int64 // atomic
netConn net.Conn
rd *proto.Reader
bw *bufio.Writer
wr *proto.Writer
Inited bool
pooled bool
createdAt time.Time
usedAt int64 // atomic
}
func NewConn(netConn net.Conn) *Conn {
@@ -29,7 +33,8 @@ func NewConn(netConn net.Conn) *Conn {
createdAt: time.Now(),
}
cn.rd = proto.NewReader(netConn)
cn.wr = proto.NewWriter(netConn)
cn.bw = bufio.NewWriter(netConn)
cn.wr = proto.NewWriter(cn.bw)
cn.SetUsedAt(time.Now())
return cn
}
@@ -46,7 +51,7 @@ func (cn *Conn) SetUsedAt(tm time.Time) {
func (cn *Conn) SetNetConn(netConn net.Conn) {
cn.netConn = netConn
cn.rd.Reset(netConn)
cn.wr.Reset(netConn)
cn.bw.Reset(netConn)
}
func (cn *Conn) Write(b []byte) (int, error) {
@@ -54,35 +59,48 @@ func (cn *Conn) Write(b []byte) (int, error) {
}
func (cn *Conn) RemoteAddr() net.Addr {
return cn.netConn.RemoteAddr()
if cn.netConn != nil {
return cn.netConn.RemoteAddr()
}
return nil
}
func (cn *Conn) WithReader(ctx context.Context, timeout time.Duration, fn func(rd *proto.Reader) error) error {
err := cn.netConn.SetReadDeadline(cn.deadline(ctx, timeout))
if err != nil {
return err
}
return fn(cn.rd)
return internal.WithSpan(ctx, "redis.with_reader", func(ctx context.Context, span trace.Span) error {
if err := cn.netConn.SetReadDeadline(cn.deadline(ctx, timeout)); err != nil {
return internal.RecordError(ctx, span, err)
}
if err := fn(cn.rd); err != nil {
return internal.RecordError(ctx, span, err)
}
return nil
})
}
func (cn *Conn) WithWriter(
ctx context.Context, timeout time.Duration, fn func(wr *proto.Writer) error,
) error {
err := cn.netConn.SetWriteDeadline(cn.deadline(ctx, timeout))
if err != nil {
return err
}
return internal.WithSpan(ctx, "redis.with_writer", func(ctx context.Context, span trace.Span) error {
if err := cn.netConn.SetWriteDeadline(cn.deadline(ctx, timeout)); err != nil {
return internal.RecordError(ctx, span, err)
}
if cn.wr.Buffered() > 0 {
cn.wr.Reset(cn.netConn)
}
if cn.bw.Buffered() > 0 {
cn.bw.Reset(cn.netConn)
}
err = fn(cn.wr)
if err != nil {
return err
}
if err := fn(cn.wr); err != nil {
return internal.RecordError(ctx, span, err)
}
return cn.wr.Flush()
if err := cn.bw.Flush(); err != nil {
return internal.RecordError(ctx, span, err)
}
internal.WritesCounter.Add(ctx, 1)
return nil
})
}
func (cn *Conn) Close() error {

52
vendor/github.com/go-redis/redis/v7/internal/pool/pool.go → vendor/github.com/go-redis/redis/v8/internal/pool/pool.go generated vendored
View File

@@ -8,11 +8,13 @@ import (
"sync/atomic"
"time"
"github.com/go-redis/redis/v7/internal"
"github.com/go-redis/redis/v8/internal"
)
var ErrClosed = errors.New("redis: client is closed")
var ErrPoolTimeout = errors.New("redis: connection pool timeout")
var (
ErrClosed = errors.New("redis: client is closed")
ErrPoolTimeout = errors.New("redis: connection pool timeout")
)
var timers = sync.Pool{
New: func() interface{} {
@@ -38,8 +40,8 @@ type Pooler interface {
CloseConn(*Conn) error
Get(context.Context) (*Conn, error)
Put(*Conn)
Remove(*Conn, error)
Put(context.Context, *Conn)
Remove(context.Context, *Conn, error)
Len() int
IdleLen() int
@@ -60,13 +62,16 @@ type Options struct {
IdleCheckFrequency time.Duration
}
type lastDialErrorWrap struct {
err error
}
type ConnPool struct {
opt *Options
dialErrorsNum uint32 // atomic
lastDialErrorMu sync.RWMutex
lastDialError error
lastDialError atomic.Value
queue chan struct{}
@@ -158,6 +163,7 @@ func (p *ConnPool) newConn(ctx context.Context, pooled bool) (*Conn, error) {
}
}
p.connsMu.Unlock()
return cn, nil
}
@@ -179,6 +185,7 @@ func (p *ConnPool) dialConn(ctx context.Context, pooled bool) (*Conn, error) {
return nil, err
}
internal.NewConnectionsCounter.Add(ctx, 1)
cn := NewConn(netConn)
cn.pooled = pooled
return cn, nil
@@ -204,16 +211,15 @@ func (p *ConnPool) tryDial() {
}
func (p *ConnPool) setLastDialError(err error) {
p.lastDialErrorMu.Lock()
p.lastDialError = err
p.lastDialErrorMu.Unlock()
p.lastDialError.Store(&lastDialErrorWrap{err: err})
}
func (p *ConnPool) getLastDialError() error {
p.lastDialErrorMu.RLock()
err := p.lastDialError
p.lastDialErrorMu.RUnlock()
return err
err, _ := p.lastDialError.Load().(*lastDialErrorWrap)
if err != nil {
return err.err
}
return nil
}
// Get returns existed connection from the pool or creates a new one.
@@ -313,15 +319,15 @@ func (p *ConnPool) popIdle() *Conn {
return cn
}
func (p *ConnPool) Put(cn *Conn) {
func (p *ConnPool) Put(ctx context.Context, cn *Conn) {
if cn.rd.Buffered() > 0 {
internal.Logger.Printf("Conn has unread data")
p.Remove(cn, BadConnError{})
internal.Logger.Printf(ctx, "Conn has unread data")
p.Remove(ctx, cn, BadConnError{})
return
}
if !cn.pooled {
p.Remove(cn, nil)
p.Remove(ctx, cn, nil)
return
}
@@ -332,7 +338,7 @@ func (p *ConnPool) Put(cn *Conn) {
p.freeTurn()
}
func (p *ConnPool) Remove(cn *Conn, reason error) {
func (p *ConnPool) Remove(ctx context.Context, cn *Conn, reason error) {
p.removeConnWithLock(cn)
p.freeTurn()
_ = p.closeConn(cn)
@@ -403,8 +409,10 @@ func (p *ConnPool) closed() bool {
}
func (p *ConnPool) Filter(fn func(*Conn) bool) error {
var firstErr error
p.connsMu.Lock()
defer p.connsMu.Unlock()
var firstErr error
for _, cn := range p.conns {
if fn(cn) {
if err := p.closeConn(cn); err != nil && firstErr == nil {
@@ -412,7 +420,6 @@ func (p *ConnPool) Filter(fn func(*Conn) bool) error {
}
}
}
p.connsMu.Unlock()
return firstErr
}
@@ -453,7 +460,7 @@ func (p *ConnPool) reaper(frequency time.Duration) {
}
_, err := p.ReapStaleConns()
if err != nil {
internal.Logger.Printf("ReapStaleConns failed: %s", err)
internal.Logger.Printf(context.Background(), "ReapStaleConns failed: %s", err)
continue
}
case <-p.closedCh:
@@ -470,6 +477,7 @@ func (p *ConnPool) ReapStaleConns() (int, error) {
p.connsMu.Lock()
cn := p.reapStaleConn()
p.connsMu.Unlock()
p.freeTurn()
if cn != nil {

58
vendor/github.com/go-redis/redis/v8/internal/pool/pool_single.go generated vendored Normal file
View File

@@ -0,0 +1,58 @@
package pool
import "context"
type SingleConnPool struct {
pool Pooler
cn *Conn
stickyErr error
}
var _ Pooler = (*SingleConnPool)(nil)
func NewSingleConnPool(pool Pooler, cn *Conn) *SingleConnPool {
return &SingleConnPool{
pool: pool,
cn: cn,
}
}
func (p *SingleConnPool) NewConn(ctx context.Context) (*Conn, error) {
return p.pool.NewConn(ctx)
}
func (p *SingleConnPool) CloseConn(cn *Conn) error {
return p.pool.CloseConn(cn)
}
func (p *SingleConnPool) Get(ctx context.Context) (*Conn, error) {
if p.stickyErr != nil {
return nil, p.stickyErr
}
return p.cn, nil
}
func (p *SingleConnPool) Put(ctx context.Context, cn *Conn) {}
func (p *SingleConnPool) Remove(ctx context.Context, cn *Conn, reason error) {
p.cn = nil
p.stickyErr = reason
}
func (p *SingleConnPool) Close() error {
p.cn = nil
p.stickyErr = ErrClosed
return nil
}
func (p *SingleConnPool) Len() int {
return 0
}
func (p *SingleConnPool) IdleLen() int {
return 0
}
func (p *SingleConnPool) Stats() *Stats {
return &Stats{}
}

112
vendor/github.com/go-redis/redis/v7/internal/pool/pool_single.go → vendor/github.com/go-redis/redis/v8/internal/pool/pool_sticky.go generated vendored
View File

@@ -2,6 +2,7 @@ package pool
import (
"context"
"errors"
"fmt"
"sync/atomic"
)
@@ -30,9 +31,11 @@ func (e BadConnError) Unwrap() error {
return e.wrapped
}
type SingleConnPool struct {
pool Pooler
level int32 // atomic
//------------------------------------------------------------------------------
type StickyConnPool struct {
pool Pooler
shared int32 // atomic
state uint32 // atomic
ch chan *Conn
@@ -40,37 +43,29 @@ type SingleConnPool struct {
_badConnError atomic.Value
}
var _ Pooler = (*SingleConnPool)(nil)
var _ Pooler = (*StickyConnPool)(nil)
func NewSingleConnPool(pool Pooler) *SingleConnPool {
p, ok := pool.(*SingleConnPool)
func NewStickyConnPool(pool Pooler) *StickyConnPool {
p, ok := pool.(*StickyConnPool)
if !ok {
p = &SingleConnPool{
p = &StickyConnPool{
pool: pool,
ch: make(chan *Conn, 1),
}
}
atomic.AddInt32(&p.level, 1)
atomic.AddInt32(&p.shared, 1)
return p
}
func (p *SingleConnPool) SetConn(cn *Conn) {
if atomic.CompareAndSwapUint32(&p.state, stateDefault, stateInited) {
p.ch <- cn
} else {
panic("not reached")
}
}
func (p *SingleConnPool) NewConn(ctx context.Context) (*Conn, error) {
func (p *StickyConnPool) NewConn(ctx context.Context) (*Conn, error) {
return p.pool.NewConn(ctx)
}
func (p *SingleConnPool) CloseConn(cn *Conn) error {
func (p *StickyConnPool) CloseConn(cn *Conn) error {
return p.pool.CloseConn(cn)
}
func (p *SingleConnPool) Get(ctx context.Context) (*Conn, error) {
func (p *StickyConnPool) Get(ctx context.Context) (*Conn, error) {
// In worst case this races with Close which is not a very common operation.
for i := 0; i < 1000; i++ {
switch atomic.LoadUint32(&p.state) {
@@ -82,7 +77,7 @@ func (p *SingleConnPool) Get(ctx context.Context) (*Conn, error) {
if atomic.CompareAndSwapUint32(&p.state, stateDefault, stateInited) {
return cn, nil
}
p.pool.Remove(cn, ErrClosed)
p.pool.Remove(ctx, cn, ErrClosed)
case stateInited:
if err := p.badConnError(); err != nil {
return nil, err
@@ -98,60 +93,38 @@ func (p *SingleConnPool) Get(ctx context.Context) (*Conn, error) {
panic("not reached")
}
}
return nil, fmt.Errorf("redis: SingleConnPool.Get: infinite loop")
return nil, fmt.Errorf("redis: StickyConnPool.Get: infinite loop")
}
func (p *SingleConnPool) Put(cn *Conn) {
func (p *StickyConnPool) Put(ctx context.Context, cn *Conn) {
defer func() {
if recover() != nil {
p.freeConn(cn)
p.freeConn(ctx, cn)
}
}()
p.ch <- cn
}
func (p *SingleConnPool) freeConn(cn *Conn) {
func (p *StickyConnPool) freeConn(ctx context.Context, cn *Conn) {
if err := p.badConnError(); err != nil {
p.pool.Remove(cn, err)
p.pool.Remove(ctx, cn, err)
} else {
p.pool.Put(cn)
p.pool.Put(ctx, cn)
}
}
func (p *SingleConnPool) Remove(cn *Conn, reason error) {
func (p *StickyConnPool) Remove(ctx context.Context, cn *Conn, reason error) {
defer func() {
if recover() != nil {
p.pool.Remove(cn, ErrClosed)
p.pool.Remove(ctx, cn, ErrClosed)
}
}()
p._badConnError.Store(BadConnError{wrapped: reason})
p.ch <- cn
}
func (p *SingleConnPool) Len() int {
switch atomic.LoadUint32(&p.state) {
case stateDefault:
return 0
case stateInited:
return 1
case stateClosed:
return 0
default:
panic("not reached")
}
}
func (p *SingleConnPool) IdleLen() int {
return len(p.ch)
}
func (p *SingleConnPool) Stats() *Stats {
return &Stats{}
}
func (p *SingleConnPool) Close() error {
level := atomic.AddInt32(&p.level, -1)
if level > 0 {
func (p *StickyConnPool) Close() error {
if shared := atomic.AddInt32(&p.shared, -1); shared > 0 {
return nil
}
@@ -164,16 +137,16 @@ func (p *SingleConnPool) Close() error {
close(p.ch)
cn, ok := <-p.ch
if ok {
p.freeConn(cn)
p.freeConn(context.TODO(), cn)
}
return nil
}
}
return fmt.Errorf("redis: SingleConnPool.Close: infinite loop")
return errors.New("redis: StickyConnPool.Close: infinite loop")
}
func (p *SingleConnPool) Reset() error {
func (p *StickyConnPool) Reset(ctx context.Context) error {
if p.badConnError() == nil {
return nil
}
@@ -183,21 +156,21 @@ func (p *SingleConnPool) Reset() error {
if !ok {
return ErrClosed
}
p.pool.Remove(cn, ErrClosed)
p.pool.Remove(ctx, cn, ErrClosed)
p._badConnError.Store(BadConnError{wrapped: nil})
default:
return fmt.Errorf("redis: SingleConnPool does not have a Conn")
return errors.New("redis: StickyConnPool does not have a Conn")
}
if !atomic.CompareAndSwapUint32(&p.state, stateInited, stateDefault) {
state := atomic.LoadUint32(&p.state)
return fmt.Errorf("redis: invalid SingleConnPool state: %d", state)
return fmt.Errorf("redis: invalid StickyConnPool state: %d", state)
}
return nil
}
func (p *SingleConnPool) badConnError() error {
func (p *StickyConnPool) badConnError() error {
if v := p._badConnError.Load(); v != nil {
err := v.(BadConnError)
if err.wrapped != nil {
@@ -206,3 +179,24 @@ func (p *SingleConnPool) badConnError() error {
}
return nil
}
func (p *StickyConnPool) Len() int {
switch atomic.LoadUint32(&p.state) {
case stateDefault:
return 0
case stateInited:
return 1
case stateClosed:
return 0
default:
panic("not reached")
}
}
func (p *StickyConnPool) IdleLen() int {
return len(p.ch)
}
func (p *StickyConnPool) Stats() *Stats {
return &Stats{}
}

31
vendor/github.com/go-redis/redis/v7/internal/proto/reader.go → vendor/github.com/go-redis/redis/v8/internal/proto/reader.go generated vendored
View File

@@ -5,7 +5,7 @@ import (
"fmt"
"io"
"github.com/go-redis/redis/v7/internal/util"
"github.com/go-redis/redis/v8/internal/util"
)
const (
@@ -71,13 +71,25 @@ func (r *Reader) ReadLine() ([]byte, error) {
func (r *Reader) readLine() ([]byte, error) {
b, err := r.rd.ReadSlice('\n')
if err != nil {
return nil, err
if err != bufio.ErrBufferFull {
return nil, err
}
full := make([]byte, len(b))
copy(full, b)
b, err = r.rd.ReadBytes('\n')
if err != nil {
return nil, err
}
full = append(full, b...)
b = full
}
if len(b) <= 2 || b[len(b)-1] != '\n' || b[len(b)-2] != '\r' {
return nil, fmt.Errorf("redis: invalid reply: %q", b)
}
b = b[:len(b)-2]
return b, nil
return b[:len(b)-2], nil
}
func (r *Reader) ReadReply(m MultiBulkParse) (interface{}, error) {
@@ -181,7 +193,7 @@ func (r *Reader) ReadArrayReply(m MultiBulkParse) (interface{}, error) {
}
}
func (r *Reader) ReadArrayLen() (int64, error) {
func (r *Reader) ReadArrayLen() (int, error) {
line, err := r.ReadLine()
if err != nil {
return 0, err
@@ -190,7 +202,11 @@ func (r *Reader) ReadArrayLen() (int64, error) {
case ErrorReply:
return 0, ParseErrorReply(line)
case ArrayReply:
return parseArrayLen(line)
n, err := parseArrayLen(line)
if err != nil {
return 0, err
}
return int(n), nil
default:
return 0, fmt.Errorf("redis: can't parse array reply: %.100q", line)
}
@@ -216,7 +232,8 @@ func (r *Reader) ReadScanReply() ([]string, uint64, error) {
}
keys := make([]string, n)
for i := int64(0); i < n; i++ {
for i := 0; i < n; i++ {
key, err := r.ReadString()
if err != nil {
return nil, 0, err

11
vendor/github.com/go-redis/redis/v7/internal/proto/scan.go → vendor/github.com/go-redis/redis/v8/internal/proto/scan.go generated vendored
View File

@@ -4,10 +4,13 @@ import (
"encoding"
"fmt"
"reflect"
"time"
"github.com/go-redis/redis/v7/internal/util"
"github.com/go-redis/redis/v8/internal/util"
)
// Scan parses bytes `b` to `v` with appropriate type.
// nolint: gocyclo
func Scan(b []byte, v interface{}) error {
switch v := v.(type) {
case nil:
@@ -99,6 +102,10 @@ func Scan(b []byte, v interface{}) error {
case *bool:
*v = len(b) == 1 && b[0] == '1'
return nil
case *time.Time:
var err error
*v, err = time.Parse(time.RFC3339Nano, util.BytesToString(b))
return err
case encoding.BinaryUnmarshaler:
return v.UnmarshalBinary(b)
default:
@@ -124,7 +131,7 @@ func ScanSlice(data []string, slice interface{}) error {
for i, s := range data {
elem := next()
if err := Scan([]byte(s), elem.Addr().Interface()); err != nil {
err = fmt.Errorf("redis: ScanSlice index=%d value=%q failed: %s", i, s, err)
err = fmt.Errorf("redis: ScanSlice index=%d value=%q failed: %w", i, s, err)
return err
}
}

58
vendor/github.com/go-redis/redis/v7/internal/proto/writer.go → vendor/github.com/go-redis/redis/v8/internal/proto/writer.go generated vendored
View File

@@ -1,26 +1,32 @@
package proto
import (
"bufio"
"encoding"
"fmt"
"io"
"strconv"
"time"
"github.com/go-redis/redis/v7/internal/util"
"github.com/go-redis/redis/v8/internal/util"
)
type writer interface {
io.Writer
io.ByteWriter
// io.StringWriter
WriteString(s string) (n int, err error)
}
type Writer struct {
wr *bufio.Writer
writer
lenBuf []byte
numBuf []byte
}
func NewWriter(wr io.Writer) *Writer {
func NewWriter(wr writer) *Writer {
return &Writer{
wr: bufio.NewWriter(wr),
writer: wr,
lenBuf: make([]byte, 64),
numBuf: make([]byte, 64),
@@ -28,19 +34,16 @@ func NewWriter(wr io.Writer) *Writer {
}
func (w *Writer) WriteArgs(args []interface{}) error {
err := w.wr.WriteByte(ArrayReply)
if err != nil {
if err := w.WriteByte(ArrayReply); err != nil {
return err
}
err = w.writeLen(len(args))
if err != nil {
if err := w.writeLen(len(args)); err != nil {
return err
}
for _, arg := range args {
err := w.writeArg(arg)
if err != nil {
if err := w.WriteArg(arg); err != nil {
return err
}
}
@@ -51,11 +54,11 @@ func (w *Writer) WriteArgs(args []interface{}) error {
func (w *Writer) writeLen(n int) error {
w.lenBuf = strconv.AppendUint(w.lenBuf[:0], uint64(n), 10)
w.lenBuf = append(w.lenBuf, '\r', '\n')
_, err := w.wr.Write(w.lenBuf)
_, err := w.Write(w.lenBuf)
return err
}
func (w *Writer) writeArg(v interface{}) error {
func (w *Writer) WriteArg(v interface{}) error {
switch v := v.(type) {
case nil:
return w.string("")
@@ -93,7 +96,8 @@ func (w *Writer) writeArg(v interface{}) error {
}
return w.int(0)
case time.Time:
return w.string(v.Format(time.RFC3339Nano))
w.numBuf = v.AppendFormat(w.numBuf[:0], time.RFC3339Nano)
return w.bytes(w.numBuf)
case encoding.BinaryMarshaler:
b, err := v.MarshalBinary()
if err != nil {
@@ -107,18 +111,15 @@ func (w *Writer) writeArg(v interface{}) error {
}
func (w *Writer) bytes(b []byte) error {
err := w.wr.WriteByte(StringReply)
if err != nil {
if err := w.WriteByte(StringReply); err != nil {
return err
}
err = w.writeLen(len(b))
if err != nil {
if err := w.writeLen(len(b)); err != nil {
return err
}
_, err = w.wr.Write(b)
if err != nil {
if _, err := w.Write(b); err != nil {
return err
}
@@ -145,21 +146,8 @@ func (w *Writer) float(f float64) error {
}
func (w *Writer) crlf() error {
err := w.wr.WriteByte('\r')
if err != nil {
if err := w.WriteByte('\r'); err != nil {
return err
}
return w.wr.WriteByte('\n')
}
func (w *Writer) Buffered() int {
return w.wr.Buffered()
}
func (w *Writer) Reset(wr io.Writer) {
w.wr.Reset(wr)
}
func (w *Writer) Flush() error {
return w.wr.Flush()
return w.WriteByte('\n')
}

45
vendor/github.com/go-redis/redis/v8/internal/rand/rand.go generated vendored Normal file
View File

@@ -0,0 +1,45 @@
package rand
import (
"math/rand"
"sync"
)
// Int returns a non-negative pseudo-random int.
func Int() int { return pseudo.Int() }
// Intn returns, as an int, a non-negative pseudo-random number in [0,n).
// It panics if n <= 0.
func Intn(n int) int { return pseudo.Intn(n) }
// Int63n returns, as an int64, a non-negative pseudo-random number in [0,n).
// It panics if n <= 0.
func Int63n(n int64) int64 { return pseudo.Int63n(n) }
// Perm returns, as a slice of n ints, a pseudo-random permutation of the integers [0,n).
func Perm(n int) []int { return pseudo.Perm(n) }
// Seed uses the provided seed value to initialize the default Source to a
// deterministic state. If Seed is not called, the generator behaves as if
// seeded by Seed(1).
func Seed(n int64) { pseudo.Seed(n) }
var pseudo = rand.New(&source{src: rand.NewSource(1)})
type source struct {
src rand.Source
mu sync.Mutex
}
func (s *source) Int63() int64 {
s.mu.Lock()
n := s.src.Int63()
s.mu.Unlock()
return n
}
func (s *source) Seed(seed int64) {
s.mu.Lock()
s.src.Seed(seed)
s.mu.Unlock()
}

11
vendor/github.com/go-redis/redis/v8/internal/safe.go generated vendored Normal file
View File

@@ -0,0 +1,11 @@
// +build appengine
package internal
func String(b []byte) string {
return string(b)
}
func Bytes(s string) []byte {
return []byte(s)
}

20
vendor/github.com/go-redis/redis/v8/internal/unsafe.go generated vendored Normal file
View File

@@ -0,0 +1,20 @@
// +build !appengine
package internal
import "unsafe"
// String converts byte slice to string.
func String(b []byte) string {
return *(*string)(unsafe.Pointer(&b))
}
// Bytes converts string to byte slice.
func Bytes(s string) []byte {
return *(*[]byte)(unsafe.Pointer(
&struct {
string
Cap int
}{s, len(s)},
))
}

73
vendor/github.com/go-redis/redis/v8/internal/util.go generated vendored Normal file
View File

@@ -0,0 +1,73 @@
package internal
import (
"context"
"time"
"github.com/go-redis/redis/v8/internal/proto"
"github.com/go-redis/redis/v8/internal/util"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/trace"
)
func Sleep(ctx context.Context, dur time.Duration) error {
return WithSpan(ctx, "time.Sleep", func(ctx context.Context, span trace.Span) error {
t := time.NewTimer(dur)
defer t.Stop()
select {
case <-t.C:
return nil
case <-ctx.Done():
return ctx.Err()
}
})
}
func ToLower(s string) string {
if isLower(s) {
return s
}
b := make([]byte, len(s))
for i := range b {
c := s[i]
if c >= 'A' && c <= 'Z' {
c += 'a' - 'A'
}
b[i] = c
}
return util.BytesToString(b)
}
func isLower(s string) bool {
for i := 0; i < len(s); i++ {
c := s[i]
if c >= 'A' && c <= 'Z' {
return false
}
}
return true
}
//------------------------------------------------------------------------------
var tracer = otel.Tracer("github.com/go-redis/redis")
func WithSpan(ctx context.Context, name string, fn func(context.Context, trace.Span) error) error {
if span := trace.SpanFromContext(ctx); !span.IsRecording() {
return fn(ctx, span)
}
ctx, span := tracer.Start(ctx, name)
defer span.End()
return fn(ctx, span)
}
func RecordError(ctx context.Context, span trace.Span, err error) error {
if err != proto.Nil {
span.RecordError(err)
}
return err
}

0
vendor/github.com/go-redis/redis/v7/internal/util/safe.go → vendor/github.com/go-redis/redis/v8/internal/util/safe.go generated vendored
View File

0
vendor/github.com/go-redis/redis/v7/internal/util/strconv.go → vendor/github.com/go-redis/redis/v8/internal/util/strconv.go generated vendored
View File

0
vendor/github.com/go-redis/redis/v7/internal/util/unsafe.go → vendor/github.com/go-redis/redis/v8/internal/util/unsafe.go generated vendored
View File

10
vendor/github.com/go-redis/redis/v7/iterator.go → vendor/github.com/go-redis/redis/v8/iterator.go generated vendored
View File

@@ -1,6 +1,7 @@
package redis
import (
"context"
"sync"
)
@@ -21,7 +22,7 @@ func (it *ScanIterator) Err() error {
}
// Next advances the cursor and returns true if more values can be read.
func (it *ScanIterator) Next() bool {
func (it *ScanIterator) Next(ctx context.Context) bool {
it.mu.Lock()
defer it.mu.Unlock()
@@ -43,13 +44,14 @@ func (it *ScanIterator) Next() bool {
}
// Fetch next page.
if it.cmd.args[0] == "scan" {
switch it.cmd.args[0] {
case "scan", "qscan":
it.cmd.args[1] = it.cmd.cursor
} else {
default:
it.cmd.args[2] = it.cmd.cursor
}
err := it.cmd.process(it.cmd)
err := it.cmd.process(ctx, it.cmd)
if err != nil {
return false
}

114
vendor/github.com/go-redis/redis/v7/options.go → vendor/github.com/go-redis/redis/v8/options.go generated vendored
View File

@@ -12,7 +12,10 @@ import (
"strings"
"time"
"github.com/go-redis/redis/v7/internal/pool"
"github.com/go-redis/redis/v8/internal"
"github.com/go-redis/redis/v8/internal/pool"
"go.opentelemetry.io/otel/label"
"go.opentelemetry.io/otel/trace"
)
// Limiter is the interface of a rate limiter or a circuit breaker.
@@ -26,6 +29,7 @@ type Limiter interface {
ReportResult(result error)
}
// Options keeps the settings to setup redis connection.
type Options struct {
// The network type, either tcp or unix.
// Default is tcp.
@@ -38,21 +42,23 @@ type Options struct {
Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
// Hook that is called when new connection is established.
OnConnect func(*Conn) error
OnConnect func(ctx context.Context, cn *Conn) error
// Use the specified Username to authenticate the current connection with one of the connections defined in the ACL
// list when connecting to a Redis 6.0 instance, or greater, that is using the Redis ACL system.
// Use the specified Username to authenticate the current connection
// with one of the connections defined in the ACL list when connecting
// to a Redis 6.0 instance, or greater, that is using the Redis ACL system.
Username string
// Optional password. Must match the password specified in the
// requirepass server configuration option (if connecting to a Redis 5.0 instance, or lower),
// or the User Password when connecting to a Redis 6.0 instance, or greater, that is using the Redis ACL system.
// or the User Password when connecting to a Redis 6.0 instance, or greater,
// that is using the Redis ACL system.
Password string
// Database to be selected after connecting to the server.
DB int
// Maximum number of retries before giving up.
// Default is to not retry failed commands.
// Default is 3 retries; -1 (not 0) disables retries.
MaxRetries int
// Minimum backoff between each retry.
// Default is 8 milliseconds; -1 disables backoff.
@@ -117,6 +123,9 @@ func (opt *Options) init() {
opt.Network = "tcp"
}
}
if opt.DialTimeout == 0 {
opt.DialTimeout = 5 * time.Second
}
if opt.Dialer == nil {
opt.Dialer = func(ctx context.Context, network, addr string) (net.Conn, error) {
netDialer := &net.Dialer{
@@ -132,9 +141,6 @@ func (opt *Options) init() {
if opt.PoolSize == 0 {
opt.PoolSize = 10 * runtime.NumCPU()
}
if opt.DialTimeout == 0 {
opt.DialTimeout = 5 * time.Second
}
switch opt.ReadTimeout {
case -1:
opt.ReadTimeout = 0
@@ -159,6 +165,8 @@ func (opt *Options) init() {
if opt.MaxRetries == -1 {
opt.MaxRetries = 0
} else if opt.MaxRetries == 0 {
opt.MaxRetries = 3
}
switch opt.MinRetryBackoff {
case -1:
@@ -180,26 +188,35 @@ func (opt *Options) clone() *Options {
}
// ParseURL parses an URL into Options that can be used to connect to Redis.
// Scheme is required.
// There are two connection types: by tcp socket and by unix socket.
// Tcp connection:
// redis://<user>:<password>@<host>:<port>/<db_number>
// Unix connection:
// unix://<user>:<password>@</path/to/redis.sock>?db=<db_number>
func ParseURL(redisURL string) (*Options, error) {
o := &Options{Network: "tcp"}
u, err := url.Parse(redisURL)
if err != nil {
return nil, err
}
if u.Scheme != "redis" && u.Scheme != "rediss" {
return nil, errors.New("invalid redis URL scheme: " + u.Scheme)
switch u.Scheme {
case "redis", "rediss":
return setupTCPConn(u)
case "unix":
return setupUnixConn(u)
default:
return nil, fmt.Errorf("redis: invalid URL scheme: %s", u.Scheme)
}
}
if u.User != nil {
o.Username = u.User.Username()
if p, ok := u.User.Password(); ok {
o.Password = p
}
}
func setupTCPConn(u *url.URL) (*Options, error) {
o := &Options{Network: "tcp"}
o.Username, o.Password = getUserPassword(u)
if len(u.Query()) > 0 {
return nil, errors.New("no options supported")
return nil, errors.New("redis: no options supported")
}
h, p, err := net.SplitHostPort(u.Host)
@@ -222,22 +239,73 @@ func ParseURL(redisURL string) (*Options, error) {
o.DB = 0
case 1:
if o.DB, err = strconv.Atoi(f[0]); err != nil {
return nil, fmt.Errorf("invalid redis database number: %q", f[0])
return nil, fmt.Errorf("redis: invalid database number: %q", f[0])
}
default:
return nil, errors.New("invalid redis URL path: " + u.Path)
return nil, fmt.Errorf("redis: invalid URL path: %s", u.Path)
}
if u.Scheme == "rediss" {
o.TLSConfig = &tls.Config{ServerName: h}
}
return o, nil
}
func setupUnixConn(u *url.URL) (*Options, error) {
o := &Options{
Network: "unix",
}
if strings.TrimSpace(u.Path) == "" { // path is required with unix connection
return nil, errors.New("redis: empty unix socket path")
}
o.Addr = u.Path
o.Username, o.Password = getUserPassword(u)
dbStr := u.Query().Get("db")
if dbStr == "" {
return o, nil // if database is not set, connect to 0 db.
}
db, err := strconv.Atoi(dbStr)
if err != nil {
return nil, fmt.Errorf("redis: invalid database number: %w", err)
}
o.DB = db
return o, nil
}
func getUserPassword(u *url.URL) (string, string) {
var user, password string
if u.User != nil {
user = u.User.Username()
if p, ok := u.User.Password(); ok {
password = p
}
}
return user, password
}
func newConnPool(opt *Options) *pool.ConnPool {
return pool.NewConnPool(&pool.Options{
Dialer: func(ctx context.Context) (net.Conn, error) {
return opt.Dialer(ctx, opt.Network, opt.Addr)
var conn net.Conn
err := internal.WithSpan(ctx, "redis.dial", func(ctx context.Context, span trace.Span) error {
span.SetAttributes(
label.String("db.connection_string", opt.Addr),
)
var err error
conn, err = opt.Dialer(ctx, opt.Network, opt.Addr)
if err != nil {
_ = internal.RecordError(ctx, span, err)
}
return err
})
return conn, err
},
PoolSize: opt.PoolSize,
MinIdleConns: opt.MinIdleConns,

31
vendor/github.com/go-redis/redis/v7/pipeline.go → vendor/github.com/go-redis/redis/v8/pipeline.go generated vendored
View File

@@ -4,7 +4,7 @@ import (
"context"
"sync"
"github.com/go-redis/redis/v7/internal/pool"
"github.com/go-redis/redis/v8/internal/pool"
)
type pipelineExecer func(context.Context, []Cmder) error
@@ -24,12 +24,11 @@ type pipelineExecer func(context.Context, []Cmder) error
// depends of your batch size and/or use TxPipeline.
type Pipeliner interface {
StatefulCmdable
Do(args ...interface{}) *Cmd
Process(cmd Cmder) error
Do(ctx context.Context, args ...interface{}) *Cmd
Process(ctx context.Context, cmd Cmder) error
Close() error
Discard() error
Exec() ([]Cmder, error)
ExecContext(ctx context.Context) ([]Cmder, error)
Exec(ctx context.Context) ([]Cmder, error)
}
var _ Pipeliner = (*Pipeline)(nil)
@@ -54,14 +53,14 @@ func (c *Pipeline) init() {
c.statefulCmdable = c.Process
}
func (c *Pipeline) Do(args ...interface{}) *Cmd {
cmd := NewCmd(args...)
_ = c.Process(cmd)
func (c *Pipeline) Do(ctx context.Context, args ...interface{}) *Cmd {
cmd := NewCmd(ctx, args...)
_ = c.Process(ctx, cmd)
return cmd
}
// Process queues the cmd for later execution.
func (c *Pipeline) Process(cmd Cmder) error {
func (c *Pipeline) Process(ctx context.Context, cmd Cmder) error {
c.mu.Lock()
c.cmds = append(c.cmds, cmd)
c.mu.Unlock()
@@ -98,11 +97,7 @@ func (c *Pipeline) discard() error {
//
// Exec always returns list of commands and error of the first failed
// command if any.
func (c *Pipeline) Exec() ([]Cmder, error) {
return c.ExecContext(c.ctx)
}
func (c *Pipeline) ExecContext(ctx context.Context) ([]Cmder, error) {
func (c *Pipeline) Exec(ctx context.Context) ([]Cmder, error) {
c.mu.Lock()
defer c.mu.Unlock()
@@ -120,11 +115,11 @@ func (c *Pipeline) ExecContext(ctx context.Context) ([]Cmder, error) {
return cmds, c.exec(ctx, cmds)
}
func (c *Pipeline) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
func (c *Pipeline) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
if err := fn(c); err != nil {
return nil, err
}
cmds, err := c.Exec()
cmds, err := c.Exec(ctx)
_ = c.Close()
return cmds, err
}
@@ -133,8 +128,8 @@ func (c *Pipeline) Pipeline() Pipeliner {
return c
}
func (c *Pipeline) TxPipelined(fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipelined(fn)
func (c *Pipeline) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipelined(ctx, fn)
}
func (c *Pipeline) TxPipeline() Pipeliner {

180
vendor/github.com/go-redis/redis/v7/pubsub.go → vendor/github.com/go-redis/redis/v8/pubsub.go generated vendored
View File

@@ -8,12 +8,15 @@ import (
"sync"
"time"
"github.com/go-redis/redis/v7/internal"
"github.com/go-redis/redis/v7/internal/pool"
"github.com/go-redis/redis/v7/internal/proto"
"github.com/go-redis/redis/v8/internal"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/proto"
)
const pingTimeout = 30 * time.Second
const (
pingTimeout = time.Second
chanSendTimeout = time.Minute
)
var errPingTimeout = errors.New("redis: ping timeout")
@@ -26,7 +29,7 @@ var errPingTimeout = errors.New("redis: ping timeout")
type PubSub struct {
opt *Options
newConn func([]string) (*pool.Conn, error)
newConn func(ctx context.Context, channels []string) (*pool.Conn, error)
closeConn func(*pool.Conn) error
mu sync.Mutex
@@ -55,14 +58,14 @@ func (c *PubSub) init() {
c.exit = make(chan struct{})
}
func (c *PubSub) connWithLock() (*pool.Conn, error) {
func (c *PubSub) connWithLock(ctx context.Context) (*pool.Conn, error) {
c.mu.Lock()
cn, err := c.conn(nil)
cn, err := c.conn(ctx, nil)
c.mu.Unlock()
return cn, err
}
func (c *PubSub) conn(newChannels []string) (*pool.Conn, error) {
func (c *PubSub) conn(ctx context.Context, newChannels []string) (*pool.Conn, error) {
if c.closed {
return nil, pool.ErrClosed
}
@@ -73,12 +76,12 @@ func (c *PubSub) conn(newChannels []string) (*pool.Conn, error) {
channels := mapKeys(c.channels)
channels = append(channels, newChannels...)
cn, err := c.newConn(channels)
cn, err := c.newConn(ctx, channels)
if err != nil {
return nil, err
}
if err := c.resubscribe(cn); err != nil {
if err := c.resubscribe(ctx, cn); err != nil {
_ = c.closeConn(cn)
return nil, err
}
@@ -93,15 +96,15 @@ func (c *PubSub) writeCmd(ctx context.Context, cn *pool.Conn, cmd Cmder) error {
})
}
func (c *PubSub) resubscribe(cn *pool.Conn) error {
func (c *PubSub) resubscribe(ctx context.Context, cn *pool.Conn) error {
var firstErr error
if len(c.channels) > 0 {
firstErr = c._subscribe(cn, "subscribe", mapKeys(c.channels))
firstErr = c._subscribe(ctx, cn, "subscribe", mapKeys(c.channels))
}
if len(c.patterns) > 0 {
err := c._subscribe(cn, "psubscribe", mapKeys(c.patterns))
err := c._subscribe(ctx, cn, "psubscribe", mapKeys(c.patterns))
if err != nil && firstErr == nil {
firstErr = err
}
@@ -121,35 +124,40 @@ func mapKeys(m map[string]struct{}) []string {
}
func (c *PubSub) _subscribe(
cn *pool.Conn, redisCmd string, channels []string,
ctx context.Context, cn *pool.Conn, redisCmd string, channels []string,
) error {
args := make([]interface{}, 0, 1+len(channels))
args = append(args, redisCmd)
for _, channel := range channels {
args = append(args, channel)
}
cmd := NewSliceCmd(args...)
return c.writeCmd(context.TODO(), cn, cmd)
cmd := NewSliceCmd(ctx, args...)
return c.writeCmd(ctx, cn, cmd)
}
func (c *PubSub) releaseConnWithLock(cn *pool.Conn, err error, allowTimeout bool) {
func (c *PubSub) releaseConnWithLock(
ctx context.Context,
cn *pool.Conn,
err error,
allowTimeout bool,
) {
c.mu.Lock()
c.releaseConn(cn, err, allowTimeout)
c.releaseConn(ctx, cn, err, allowTimeout)
c.mu.Unlock()
}
func (c *PubSub) releaseConn(cn *pool.Conn, err error, allowTimeout bool) {
func (c *PubSub) releaseConn(ctx context.Context, cn *pool.Conn, err error, allowTimeout bool) {
if c.cn != cn {
return
}
if isBadConn(err, allowTimeout) {
c.reconnect(err)
c.reconnect(ctx, err)
}
}
func (c *PubSub) reconnect(reason error) {
func (c *PubSub) reconnect(ctx context.Context, reason error) {
_ = c.closeTheCn(reason)
_, _ = c.conn(nil)
_, _ = c.conn(ctx, nil)
}
func (c *PubSub) closeTheCn(reason error) error {
@@ -157,7 +165,7 @@ func (c *PubSub) closeTheCn(reason error) error {
return nil
}
if !c.closed {
internal.Logger.Printf("redis: discarding bad PubSub connection: %s", reason)
internal.Logger.Printf(c.getContext(), "redis: discarding bad PubSub connection: %s", reason)
}
err := c.closeConn(c.cn)
c.cn = nil
@@ -179,11 +187,11 @@ func (c *PubSub) Close() error {
// Subscribe the client to the specified channels. It returns
// empty subscription if there are no channels.
func (c *PubSub) Subscribe(channels ...string) error {
func (c *PubSub) Subscribe(ctx context.Context, channels ...string) error {
c.mu.Lock()
defer c.mu.Unlock()
err := c.subscribe("subscribe", channels...)
err := c.subscribe(ctx, "subscribe", channels...)
if c.channels == nil {
c.channels = make(map[string]struct{})
}
@@ -195,11 +203,11 @@ func (c *PubSub) Subscribe(channels ...string) error {
// PSubscribe the client to the given patterns. It returns
// empty subscription if there are no patterns.
func (c *PubSub) PSubscribe(patterns ...string) error {
func (c *PubSub) PSubscribe(ctx context.Context, patterns ...string) error {
c.mu.Lock()
defer c.mu.Unlock()
err := c.subscribe("psubscribe", patterns...)
err := c.subscribe(ctx, "psubscribe", patterns...)
if c.patterns == nil {
c.patterns = make(map[string]struct{})
}
@@ -211,55 +219,55 @@ func (c *PubSub) PSubscribe(patterns ...string) error {
// Unsubscribe the client from the given channels, or from all of
// them if none is given.
func (c *PubSub) Unsubscribe(channels ...string) error {
func (c *PubSub) Unsubscribe(ctx context.Context, channels ...string) error {
c.mu.Lock()
defer c.mu.Unlock()
for _, channel := range channels {
delete(c.channels, channel)
}
err := c.subscribe("unsubscribe", channels...)
err := c.subscribe(ctx, "unsubscribe", channels...)
return err
}
// PUnsubscribe the client from the given patterns, or from all of
// them if none is given.
func (c *PubSub) PUnsubscribe(patterns ...string) error {
func (c *PubSub) PUnsubscribe(ctx context.Context, patterns ...string) error {
c.mu.Lock()
defer c.mu.Unlock()
for _, pattern := range patterns {
delete(c.patterns, pattern)
}
err := c.subscribe("punsubscribe", patterns...)
err := c.subscribe(ctx, "punsubscribe", patterns...)
return err
}
func (c *PubSub) subscribe(redisCmd string, channels ...string) error {
cn, err := c.conn(channels)
func (c *PubSub) subscribe(ctx context.Context, redisCmd string, channels ...string) error {
cn, err := c.conn(ctx, channels)
if err != nil {
return err
}
err = c._subscribe(cn, redisCmd, channels)
c.releaseConn(cn, err, false)
err = c._subscribe(ctx, cn, redisCmd, channels)
c.releaseConn(ctx, cn, err, false)
return err
}
func (c *PubSub) Ping(payload ...string) error {
func (c *PubSub) Ping(ctx context.Context, payload ...string) error {
args := []interface{}{"ping"}
if len(payload) == 1 {
args = append(args, payload[0])
}
cmd := NewCmd(args...)
cmd := NewCmd(ctx, args...)
cn, err := c.connWithLock()
cn, err := c.connWithLock(ctx)
if err != nil {
return err
}
err = c.writeCmd(context.TODO(), cn, cmd)
c.releaseConnWithLock(cn, err, false)
err = c.writeCmd(ctx, cn, cmd)
c.releaseConnWithLock(ctx, cn, err, false)
return err
}
@@ -279,9 +287,10 @@ func (m *Subscription) String() string {
// Message received as result of a PUBLISH command issued by another client.
type Message struct {
Channel string
Pattern string
Payload string
Channel string
Pattern string
Payload string
PayloadSlice []string
}
func (m *Message) String() string {
@@ -317,10 +326,24 @@ func (c *PubSub) newMessage(reply interface{}) (interface{}, error) {
Count: int(reply[2].(int64)),
}, nil
case "message":
return &Message{
Channel: reply[1].(string),
Payload: reply[2].(string),
}, nil
switch payload := reply[2].(type) {
case string:
return &Message{
Channel: reply[1].(string),
Payload: payload,
}, nil
case []interface{}:
ss := make([]string, len(payload))
for i, s := range payload {
ss[i] = s.(string)
}
return &Message{
Channel: reply[1].(string),
PayloadSlice: ss,
}, nil
default:
return nil, fmt.Errorf("redis: unsupported pubsub message payload: %T", payload)
}
case "pmessage":
return &Message{
Pattern: reply[1].(string),
@@ -342,21 +365,21 @@ func (c *PubSub) newMessage(reply interface{}) (interface{}, error) {
// ReceiveTimeout acts like Receive but returns an error if message
// is not received in time. This is low-level API and in most cases
// Channel should be used instead.
func (c *PubSub) ReceiveTimeout(timeout time.Duration) (interface{}, error) {
func (c *PubSub) ReceiveTimeout(ctx context.Context, timeout time.Duration) (interface{}, error) {
if c.cmd == nil {
c.cmd = NewCmd()
c.cmd = NewCmd(ctx)
}
cn, err := c.connWithLock()
cn, err := c.connWithLock(ctx)
if err != nil {
return nil, err
}
err = cn.WithReader(context.TODO(), timeout, func(rd *proto.Reader) error {
err = cn.WithReader(ctx, timeout, func(rd *proto.Reader) error {
return c.cmd.readReply(rd)
})
c.releaseConnWithLock(cn, err, timeout > 0)
c.releaseConnWithLock(ctx, cn, err, timeout > 0)
if err != nil {
return nil, err
}
@@ -367,16 +390,16 @@ func (c *PubSub) ReceiveTimeout(timeout time.Duration) (interface{}, error) {
// Receive returns a message as a Subscription, Message, Pong or error.
// See PubSub example for details. This is low-level API and in most cases
// Channel should be used instead.
func (c *PubSub) Receive() (interface{}, error) {
return c.ReceiveTimeout(0)
func (c *PubSub) Receive(ctx context.Context) (interface{}, error) {
return c.ReceiveTimeout(ctx, 0)
}
// ReceiveMessage returns a Message or error ignoring Subscription and Pong
// messages. This is low-level API and in most cases Channel should be used
// instead.
func (c *PubSub) ReceiveMessage() (*Message, error) {
func (c *PubSub) ReceiveMessage(ctx context.Context) (*Message, error) {
for {
msg, err := c.Receive()
msg, err := c.Receive(ctx)
if err != nil {
return nil, err
}
@@ -429,7 +452,7 @@ func (c *PubSub) ChannelSize(size int) <-chan *Message {
// reconnections.
//
// ChannelWithSubscriptions can not be used together with Channel or ChannelSize.
func (c *PubSub) ChannelWithSubscriptions(size int) <-chan interface{} {
func (c *PubSub) ChannelWithSubscriptions(ctx context.Context, size int) <-chan interface{} {
c.chOnce.Do(func() {
c.initPing()
c.initAllChan(size)
@@ -445,10 +468,18 @@ func (c *PubSub) ChannelWithSubscriptions(size int) <-chan interface{} {
return c.allCh
}
func (c *PubSub) getContext() context.Context {
if c.cmd != nil {
return c.cmd.ctx
}
return context.Background()
}
func (c *PubSub) initPing() {
ctx := context.TODO()
c.ping = make(chan struct{}, 1)
go func() {
timer := time.NewTimer(pingTimeout)
timer := time.NewTimer(time.Minute)
timer.Stop()
healthy := true
@@ -461,7 +492,7 @@ func (c *PubSub) initPing() {
<-timer.C
}
case <-timer.C:
pingErr := c.Ping()
pingErr := c.Ping(ctx)
if healthy {
healthy = false
} else {
@@ -469,7 +500,7 @@ func (c *PubSub) initPing() {
pingErr = errPingTimeout
}
c.mu.Lock()
c.reconnect(pingErr)
c.reconnect(ctx, pingErr)
healthy = true
c.mu.Unlock()
}
@@ -482,21 +513,22 @@ func (c *PubSub) initPing() {
// initMsgChan must be in sync with initAllChan.
func (c *PubSub) initMsgChan(size int) {
ctx := context.TODO()
c.msgCh = make(chan *Message, size)
go func() {
timer := time.NewTimer(pingTimeout)
timer := time.NewTimer(time.Minute)
timer.Stop()
var errCount int
for {
msg, err := c.Receive()
msg, err := c.Receive(ctx)
if err != nil {
if err == pool.ErrClosed {
close(c.msgCh)
return
}
if errCount > 0 {
time.Sleep(c.retryBackoff(errCount))
time.Sleep(100 * time.Millisecond)
}
errCount++
continue
@@ -516,7 +548,7 @@ func (c *PubSub) initMsgChan(size int) {
case *Pong:
// Ignore.
case *Message:
timer.Reset(pingTimeout)
timer.Reset(chanSendTimeout)
select {
case c.msgCh <- msg:
if !timer.Stop() {
@@ -524,10 +556,14 @@ func (c *PubSub) initMsgChan(size int) {
}
case <-timer.C:
internal.Logger.Printf(
"redis: %s channel is full for %s (message is dropped)", c, pingTimeout)
c.getContext(),
"redis: %s channel is full for %s (message is dropped)",
c,
chanSendTimeout,
)
}
default:
internal.Logger.Printf("redis: unknown message type: %T", msg)
internal.Logger.Printf(c.getContext(), "redis: unknown message type: %T", msg)
}
}
}()
@@ -535,6 +571,7 @@ func (c *PubSub) initMsgChan(size int) {
// initAllChan must be in sync with initMsgChan.
func (c *PubSub) initAllChan(size int) {
ctx := context.TODO()
c.allCh = make(chan interface{}, size)
go func() {
timer := time.NewTimer(pingTimeout)
@@ -542,14 +579,14 @@ func (c *PubSub) initAllChan(size int) {
var errCount int
for {
msg, err := c.Receive()
msg, err := c.Receive(ctx)
if err != nil {
if err == pool.ErrClosed {
close(c.allCh)
return
}
if errCount > 0 {
time.Sleep(c.retryBackoff(errCount))
time.Sleep(100 * time.Millisecond)
}
errCount++
continue
@@ -571,7 +608,7 @@ func (c *PubSub) initAllChan(size int) {
case *Message:
c.sendMessage(msg, timer)
default:
internal.Logger.Printf("redis: unknown message type: %T", msg)
internal.Logger.Printf(c.getContext(), "redis: unknown message type: %T", msg)
}
}
}()
@@ -586,10 +623,7 @@ func (c *PubSub) sendMessage(msg interface{}, timer *time.Timer) {
}
case <-timer.C:
internal.Logger.Printf(
c.getContext(),
"redis: %s channel is full for %s (message is dropped)", c, pingTimeout)
}
}
func (c *PubSub) retryBackoff(attempt int) time.Duration {
return internal.RetryBackoff(attempt, c.opt.MinRetryBackoff, c.opt.MaxRetryBackoff)
}

336
vendor/github.com/go-redis/redis/v7/redis.go → vendor/github.com/go-redis/redis/v8/redis.go generated vendored
View File

@@ -2,19 +2,22 @@ package redis
import (
"context"
"errors"
"fmt"
"log"
"sync/atomic"
"time"
"github.com/go-redis/redis/v7/internal"
"github.com/go-redis/redis/v7/internal/pool"
"github.com/go-redis/redis/v7/internal/proto"
"github.com/go-redis/redis/v8/internal"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/proto"
"go.opentelemetry.io/otel/label"
"go.opentelemetry.io/otel/trace"
)
// Nil reply returned by Redis when key does not exist.
const Nil = proto.Nil
func SetLogger(logger *log.Logger) {
func SetLogger(logger internal.Logging) {
internal.Logger = logger
}
@@ -49,92 +52,88 @@ func (hs *hooks) AddHook(hook Hook) {
func (hs hooks) process(
ctx context.Context, cmd Cmder, fn func(context.Context, Cmder) error,
) error {
ctx, err := hs.beforeProcess(ctx, cmd)
if err != nil {
if len(hs.hooks) == 0 {
err := hs.withContext(ctx, func() error {
return fn(ctx, cmd)
})
cmd.SetErr(err)
return err
}
cmdErr := fn(ctx, cmd)
var hookIndex int
var retErr error
if err := hs.afterProcess(ctx, cmd); err != nil {
cmd.SetErr(err)
return err
}
return cmdErr
}
func (hs hooks) beforeProcess(ctx context.Context, cmd Cmder) (context.Context, error) {
for _, h := range hs.hooks {
var err error
ctx, err = h.BeforeProcess(ctx, cmd)
if err != nil {
return nil, err
for ; hookIndex < len(hs.hooks) && retErr == nil; hookIndex++ {
ctx, retErr = hs.hooks[hookIndex].BeforeProcess(ctx, cmd)
if retErr != nil {
cmd.SetErr(retErr)
}
}
return ctx, nil
}
func (hs hooks) afterProcess(ctx context.Context, cmd Cmder) error {
var firstErr error
for _, h := range hs.hooks {
err := h.AfterProcess(ctx, cmd)
if err != nil && firstErr == nil {
firstErr = err
if retErr == nil {
retErr = hs.withContext(ctx, func() error {
return fn(ctx, cmd)
})
cmd.SetErr(retErr)
}
for hookIndex--; hookIndex >= 0; hookIndex-- {
if err := hs.hooks[hookIndex].AfterProcess(ctx, cmd); err != nil {
retErr = err
cmd.SetErr(retErr)
}
}
return firstErr
return retErr
}
func (hs hooks) processPipeline(
ctx context.Context, cmds []Cmder, fn func(context.Context, []Cmder) error,
) error {
ctx, err := hs.beforeProcessPipeline(ctx, cmds)
if err != nil {
setCmdsErr(cmds, err)
if len(hs.hooks) == 0 {
err := hs.withContext(ctx, func() error {
return fn(ctx, cmds)
})
return err
}
cmdsErr := fn(ctx, cmds)
var hookIndex int
var retErr error
if err := hs.afterProcessPipeline(ctx, cmds); err != nil {
setCmdsErr(cmds, err)
return err
}
return cmdsErr
}
func (hs hooks) beforeProcessPipeline(ctx context.Context, cmds []Cmder) (context.Context, error) {
for _, h := range hs.hooks {
var err error
ctx, err = h.BeforeProcessPipeline(ctx, cmds)
if err != nil {
return nil, err
for ; hookIndex < len(hs.hooks) && retErr == nil; hookIndex++ {
ctx, retErr = hs.hooks[hookIndex].BeforeProcessPipeline(ctx, cmds)
if retErr != nil {
setCmdsErr(cmds, retErr)
}
}
return ctx, nil
}
func (hs hooks) afterProcessPipeline(ctx context.Context, cmds []Cmder) error {
var firstErr error
for _, h := range hs.hooks {
err := h.AfterProcessPipeline(ctx, cmds)
if err != nil && firstErr == nil {
firstErr = err
if retErr == nil {
retErr = hs.withContext(ctx, func() error {
return fn(ctx, cmds)
})
}
for hookIndex--; hookIndex >= 0; hookIndex-- {
if err := hs.hooks[hookIndex].AfterProcessPipeline(ctx, cmds); err != nil {
retErr = err
setCmdsErr(cmds, retErr)
}
}
return firstErr
return retErr
}
func (hs hooks) processTxPipeline(
ctx context.Context, cmds []Cmder, fn func(context.Context, []Cmder) error,
) error {
cmds = wrapMultiExec(cmds)
cmds = wrapMultiExec(ctx, cmds)
return hs.processPipeline(ctx, cmds, fn)
}
func (hs hooks) withContext(ctx context.Context, fn func() error) error {
return fn()
}
//------------------------------------------------------------------------------
type baseClient struct {
@@ -201,6 +200,7 @@ func (c *baseClient) getConn(ctx context.Context) (*pool.Conn, error) {
}
return nil, err
}
return cn, nil
}
@@ -210,10 +210,16 @@ func (c *baseClient) _getConn(ctx context.Context) (*pool.Conn, error) {
return nil, err
}
err = c.initConn(ctx, cn)
if cn.Inited {
return cn, nil
}
err = internal.WithSpan(ctx, "redis.init_conn", func(ctx context.Context, span trace.Span) error {
return c.initConn(ctx, cn)
})
if err != nil {
c.connPool.Remove(cn, err)
if err := internal.Unwrap(err); err != nil {
c.connPool.Remove(ctx, cn, err)
if err := errors.Unwrap(err); err != nil {
return nil, err
}
return nil, err
@@ -235,25 +241,24 @@ func (c *baseClient) initConn(ctx context.Context, cn *pool.Conn) error {
return nil
}
connPool := pool.NewSingleConnPool(nil)
connPool.SetConn(cn)
connPool := pool.NewSingleConnPool(c.connPool, cn)
conn := newConn(ctx, c.opt, connPool)
_, err := conn.Pipelined(func(pipe Pipeliner) error {
_, err := conn.Pipelined(ctx, func(pipe Pipeliner) error {
if c.opt.Password != "" {
if c.opt.Username != "" {
pipe.AuthACL(c.opt.Username, c.opt.Password)
pipe.AuthACL(ctx, c.opt.Username, c.opt.Password)
} else {
pipe.Auth(c.opt.Password)
pipe.Auth(ctx, c.opt.Password)
}
}
if c.opt.DB > 0 {
pipe.Select(c.opt.DB)
pipe.Select(ctx, c.opt.DB)
}
if c.opt.readOnly {
pipe.ReadOnly()
pipe.ReadOnly(ctx)
}
return nil
@@ -263,76 +268,107 @@ func (c *baseClient) initConn(ctx context.Context, cn *pool.Conn) error {
}
if c.opt.OnConnect != nil {
return c.opt.OnConnect(conn)
return c.opt.OnConnect(ctx, conn)
}
return nil
}
func (c *baseClient) releaseConn(cn *pool.Conn, err error) {
func (c *baseClient) releaseConn(ctx context.Context, cn *pool.Conn, err error) {
if c.opt.Limiter != nil {
c.opt.Limiter.ReportResult(err)
}
if isBadConn(err, false) {
c.connPool.Remove(cn, err)
c.connPool.Remove(ctx, cn, err)
} else {
c.connPool.Put(cn)
c.connPool.Put(ctx, cn)
}
}
func (c *baseClient) withConn(
ctx context.Context, fn func(context.Context, *pool.Conn) error,
) error {
cn, err := c.getConn(ctx)
if err != nil {
return err
}
defer func() {
c.releaseConn(cn, err)
}()
return internal.WithSpan(ctx, "redis.with_conn", func(ctx context.Context, span trace.Span) error {
cn, err := c.getConn(ctx)
if err != nil {
return err
}
err = fn(ctx, cn)
return err
if span.IsRecording() {
if remoteAddr := cn.RemoteAddr(); remoteAddr != nil {
span.SetAttributes(label.String("net.peer.ip", remoteAddr.String()))
}
}
defer func() {
c.releaseConn(ctx, cn, err)
}()
done := ctx.Done()
if done == nil {
err = fn(ctx, cn)
return err
}
errc := make(chan error, 1)
go func() { errc <- fn(ctx, cn) }()
select {
case <-done:
_ = cn.Close()
// Wait for the goroutine to finish and send something.
<-errc
err = ctx.Err()
return err
case err = <-errc:
return err
}
})
}
func (c *baseClient) process(ctx context.Context, cmd Cmder) error {
err := c._process(ctx, cmd)
if err != nil {
cmd.SetErr(err)
return err
}
return nil
}
func (c *baseClient) _process(ctx context.Context, cmd Cmder) error {
var lastErr error
for attempt := 0; attempt <= c.opt.MaxRetries; attempt++ {
if attempt > 0 {
if err := internal.Sleep(ctx, c.retryBackoff(attempt)); err != nil {
return err
}
}
attempt := attempt
retryTimeout := true
lastErr = c.withConn(ctx, func(ctx context.Context, cn *pool.Conn) error {
err := cn.WithWriter(ctx, c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmd(wr, cmd)
var retry bool
err := internal.WithSpan(ctx, "redis.process", func(ctx context.Context, span trace.Span) error {
if attempt > 0 {
if err := internal.Sleep(ctx, c.retryBackoff(attempt)); err != nil {
return err
}
}
retryTimeout := uint32(1)
err := c.withConn(ctx, func(ctx context.Context, cn *pool.Conn) error {
err := cn.WithWriter(ctx, c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmd(wr, cmd)
})
if err != nil {
return err
}
err = cn.WithReader(ctx, c.cmdTimeout(cmd), cmd.readReply)
if err != nil {
if cmd.readTimeout() == nil {
atomic.StoreUint32(&retryTimeout, 1)
}
return err
}
return nil
})
if err != nil {
return err
if err == nil {
return nil
}
err = cn.WithReader(ctx, c.cmdTimeout(cmd), cmd.readReply)
if err != nil {
retryTimeout = cmd.readTimeout() == nil
return err
}
return nil
retry = shouldRetry(err, atomic.LoadUint32(&retryTimeout) == 1)
return err
})
if lastErr == nil || !isRetryableError(lastErr, retryTimeout) {
return lastErr
if err == nil || !retry {
return err
}
lastErr = err
}
return lastErr
}
@@ -411,7 +447,7 @@ func (c *baseClient) _generalProcessPipeline(
canRetry, err = p(ctx, cn, cmds)
return err
})
if lastErr == nil || !canRetry || !isRetryableError(lastErr, true) {
if lastErr == nil || !canRetry || !shouldRetry(lastErr, true) {
return lastErr
}
}
@@ -437,6 +473,7 @@ func (c *baseClient) pipelineProcessCmds(
func pipelineReadCmds(rd *proto.Reader, cmds []Cmder) error {
for _, cmd := range cmds {
err := cmd.readReply(rd)
cmd.SetErr(err)
if err != nil && !isRedisError(err) {
return err
}
@@ -469,15 +506,15 @@ func (c *baseClient) txPipelineProcessCmds(
return false, err
}
func wrapMultiExec(cmds []Cmder) []Cmder {
func wrapMultiExec(ctx context.Context, cmds []Cmder) []Cmder {
if len(cmds) == 0 {
panic("not reached")
}
cmds = append(cmds, make([]Cmder, 2)...)
copy(cmds[1:], cmds[:len(cmds)-2])
cmds[0] = NewStatusCmd("multi")
cmds[len(cmds)-1] = NewSliceCmd("exec")
return cmds
cmdCopy := make([]Cmder, len(cmds)+2)
cmdCopy[0] = NewStatusCmd(ctx, "multi")
copy(cmdCopy[1:], cmds)
cmdCopy[len(cmdCopy)-1] = NewSliceCmd(ctx, "exec")
return cmdCopy
}
func txPipelineReadQueued(rd *proto.Reader, statusCmd *StatusCmd, cmds []Cmder) error {
@@ -565,26 +602,18 @@ func (c *Client) WithContext(ctx context.Context) *Client {
return clone
}
func (c *Client) Conn() *Conn {
return newConn(c.ctx, c.opt, pool.NewSingleConnPool(c.connPool))
func (c *Client) Conn(ctx context.Context) *Conn {
return newConn(ctx, c.opt, pool.NewStickyConnPool(c.connPool))
}
// Do creates a Cmd from the args and processes the cmd.
func (c *Client) Do(args ...interface{}) *Cmd {
return c.DoContext(c.ctx, args...)
}
func (c *Client) DoContext(ctx context.Context, args ...interface{}) *Cmd {
cmd := NewCmd(args...)
_ = c.ProcessContext(ctx, cmd)
func (c *Client) Do(ctx context.Context, args ...interface{}) *Cmd {
cmd := NewCmd(ctx, args...)
_ = c.Process(ctx, cmd)
return cmd
}
func (c *Client) Process(cmd Cmder) error {
return c.ProcessContext(c.ctx, cmd)
}
func (c *Client) ProcessContext(ctx context.Context, cmd Cmder) error {
func (c *Client) Process(ctx context.Context, cmd Cmder) error {
return c.hooks.process(ctx, cmd, c.baseClient.process)
}
@@ -609,8 +638,8 @@ func (c *Client) PoolStats() *PoolStats {
return (*PoolStats)(stats)
}
func (c *Client) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipeline().Pipelined(fn)
func (c *Client) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipeline().Pipelined(ctx, fn)
}
func (c *Client) Pipeline() Pipeliner {
@@ -622,8 +651,8 @@ func (c *Client) Pipeline() Pipeliner {
return &pipe
}
func (c *Client) TxPipelined(fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(fn)
func (c *Client) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(ctx, fn)
}
// TxPipeline acts like Pipeline, but wraps queued commands with MULTI/EXEC.
@@ -640,8 +669,8 @@ func (c *Client) pubSub() *PubSub {
pubsub := &PubSub{
opt: c.opt,
newConn: func(channels []string) (*pool.Conn, error) {
return c.newConn(context.TODO())
newConn: func(ctx context.Context, channels []string) (*pool.Conn, error) {
return c.newConn(ctx)
},
closeConn: c.connPool.CloseConn,
}
@@ -675,20 +704,20 @@ func (c *Client) pubSub() *PubSub {
// }
//
// ch := sub.Channel()
func (c *Client) Subscribe(channels ...string) *PubSub {
func (c *Client) Subscribe(ctx context.Context, channels ...string) *PubSub {
pubsub := c.pubSub()
if len(channels) > 0 {
_ = pubsub.Subscribe(channels...)
_ = pubsub.Subscribe(ctx, channels...)
}
return pubsub
}
// PSubscribe subscribes the client to the given patterns.
// Patterns can be omitted to create empty subscription.
func (c *Client) PSubscribe(channels ...string) *PubSub {
func (c *Client) PSubscribe(ctx context.Context, channels ...string) *PubSub {
pubsub := c.pubSub()
if len(channels) > 0 {
_ = pubsub.PSubscribe(channels...)
_ = pubsub.PSubscribe(ctx, channels...)
}
return pubsub
}
@@ -699,6 +728,7 @@ type conn struct {
baseClient
cmdable
statefulCmdable
hooks // TODO: inherit hooks
}
// Conn is like Client, but its pool contains single connection.
@@ -722,16 +752,20 @@ func newConn(ctx context.Context, opt *Options, connPool pool.Pooler) *Conn {
return &c
}
func (c *Conn) Process(cmd Cmder) error {
return c.ProcessContext(c.ctx, cmd)
func (c *Conn) Process(ctx context.Context, cmd Cmder) error {
return c.hooks.process(ctx, cmd, c.baseClient.process)
}
func (c *Conn) ProcessContext(ctx context.Context, cmd Cmder) error {
return c.baseClient.process(ctx, cmd)
func (c *Conn) processPipeline(ctx context.Context, cmds []Cmder) error {
return c.hooks.processPipeline(ctx, cmds, c.baseClient.processPipeline)
}
func (c *Conn) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipeline().Pipelined(fn)
func (c *Conn) processTxPipeline(ctx context.Context, cmds []Cmder) error {
return c.hooks.processTxPipeline(ctx, cmds, c.baseClient.processTxPipeline)
}
func (c *Conn) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipeline().Pipelined(ctx, fn)
}
func (c *Conn) Pipeline() Pipeliner {
@@ -743,8 +777,8 @@ func (c *Conn) Pipeline() Pipeliner {
return &pipe
}
func (c *Conn) TxPipelined(fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(fn)
func (c *Conn) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(ctx, fn)
}
// TxPipeline acts like Pipeline, but wraps queued commands with MULTI/EXEC.

44
vendor/github.com/go-redis/redis/v7/result.go → vendor/github.com/go-redis/redis/v8/result.go generated vendored
View File

@@ -2,7 +2,7 @@ package redis
import "time"
// NewCmdResult returns a Cmd initialised with val and err for testing
// NewCmdResult returns a Cmd initialised with val and err for testing.
func NewCmdResult(val interface{}, err error) *Cmd {
var cmd Cmd
cmd.val = val
@@ -10,7 +10,7 @@ func NewCmdResult(val interface{}, err error) *Cmd {
return &cmd
}
// NewSliceResult returns a SliceCmd initialised with val and err for testing
// NewSliceResult returns a SliceCmd initialised with val and err for testing.
func NewSliceResult(val []interface{}, err error) *SliceCmd {
var cmd SliceCmd
cmd.val = val
@@ -18,7 +18,7 @@ func NewSliceResult(val []interface{}, err error) *SliceCmd {
return &cmd
}
// NewStatusResult returns a StatusCmd initialised with val and err for testing
// NewStatusResult returns a StatusCmd initialised with val and err for testing.
func NewStatusResult(val string, err error) *StatusCmd {
var cmd StatusCmd
cmd.val = val
@@ -26,7 +26,7 @@ func NewStatusResult(val string, err error) *StatusCmd {
return &cmd
}
// NewIntResult returns an IntCmd initialised with val and err for testing
// NewIntResult returns an IntCmd initialised with val and err for testing.
func NewIntResult(val int64, err error) *IntCmd {
var cmd IntCmd
cmd.val = val
@@ -34,7 +34,7 @@ func NewIntResult(val int64, err error) *IntCmd {
return &cmd
}
// NewDurationResult returns a DurationCmd initialised with val and err for testing
// NewDurationResult returns a DurationCmd initialised with val and err for testing.
func NewDurationResult(val time.Duration, err error) *DurationCmd {
var cmd DurationCmd
cmd.val = val
@@ -42,7 +42,7 @@ func NewDurationResult(val time.Duration, err error) *DurationCmd {
return &cmd
}
// NewBoolResult returns a BoolCmd initialised with val and err for testing
// NewBoolResult returns a BoolCmd initialised with val and err for testing.
func NewBoolResult(val bool, err error) *BoolCmd {
var cmd BoolCmd
cmd.val = val
@@ -50,7 +50,7 @@ func NewBoolResult(val bool, err error) *BoolCmd {
return &cmd
}
// NewStringResult returns a StringCmd initialised with val and err for testing
// NewStringResult returns a StringCmd initialised with val and err for testing.
func NewStringResult(val string, err error) *StringCmd {
var cmd StringCmd
cmd.val = val
@@ -58,7 +58,7 @@ func NewStringResult(val string, err error) *StringCmd {
return &cmd
}
// NewFloatResult returns a FloatCmd initialised with val and err for testing
// NewFloatResult returns a FloatCmd initialised with val and err for testing.
func NewFloatResult(val float64, err error) *FloatCmd {
var cmd FloatCmd
cmd.val = val
@@ -66,7 +66,7 @@ func NewFloatResult(val float64, err error) *FloatCmd {
return &cmd
}
// NewStringSliceResult returns a StringSliceCmd initialised with val and err for testing
// NewStringSliceResult returns a StringSliceCmd initialised with val and err for testing.
func NewStringSliceResult(val []string, err error) *StringSliceCmd {
var cmd StringSliceCmd
cmd.val = val
@@ -74,7 +74,7 @@ func NewStringSliceResult(val []string, err error) *StringSliceCmd {
return &cmd
}
// NewBoolSliceResult returns a BoolSliceCmd initialised with val and err for testing
// NewBoolSliceResult returns a BoolSliceCmd initialised with val and err for testing.
func NewBoolSliceResult(val []bool, err error) *BoolSliceCmd {
var cmd BoolSliceCmd
cmd.val = val
@@ -82,7 +82,7 @@ func NewBoolSliceResult(val []bool, err error) *BoolSliceCmd {
return &cmd
}
// NewStringStringMapResult returns a StringStringMapCmd initialised with val and err for testing
// NewStringStringMapResult returns a StringStringMapCmd initialised with val and err for testing.
func NewStringStringMapResult(val map[string]string, err error) *StringStringMapCmd {
var cmd StringStringMapCmd
cmd.val = val
@@ -90,7 +90,7 @@ func NewStringStringMapResult(val map[string]string, err error) *StringStringMap
return &cmd
}
// NewStringIntMapCmdResult returns a StringIntMapCmd initialised with val and err for testing
// NewStringIntMapCmdResult returns a StringIntMapCmd initialised with val and err for testing.
func NewStringIntMapCmdResult(val map[string]int64, err error) *StringIntMapCmd {
var cmd StringIntMapCmd
cmd.val = val
@@ -98,7 +98,7 @@ func NewStringIntMapCmdResult(val map[string]int64, err error) *StringIntMapCmd
return &cmd
}
// NewTimeCmdResult returns a TimeCmd initialised with val and err for testing
// NewTimeCmdResult returns a TimeCmd initialised with val and err for testing.
func NewTimeCmdResult(val time.Time, err error) *TimeCmd {
var cmd TimeCmd
cmd.val = val
@@ -106,7 +106,7 @@ func NewTimeCmdResult(val time.Time, err error) *TimeCmd {
return &cmd
}
// NewZSliceCmdResult returns a ZSliceCmd initialised with val and err for testing
// NewZSliceCmdResult returns a ZSliceCmd initialised with val and err for testing.
func NewZSliceCmdResult(val []Z, err error) *ZSliceCmd {
var cmd ZSliceCmd
cmd.val = val
@@ -114,7 +114,7 @@ func NewZSliceCmdResult(val []Z, err error) *ZSliceCmd {
return &cmd
}
// NewZWithKeyCmdResult returns a NewZWithKeyCmd initialised with val and err for testing
// NewZWithKeyCmdResult returns a NewZWithKeyCmd initialised with val and err for testing.
func NewZWithKeyCmdResult(val *ZWithKey, err error) *ZWithKeyCmd {
var cmd ZWithKeyCmd
cmd.val = val
@@ -122,7 +122,7 @@ func NewZWithKeyCmdResult(val *ZWithKey, err error) *ZWithKeyCmd {
return &cmd
}
// NewScanCmdResult returns a ScanCmd initialised with val and err for testing
// NewScanCmdResult returns a ScanCmd initialised with val and err for testing.
func NewScanCmdResult(keys []string, cursor uint64, err error) *ScanCmd {
var cmd ScanCmd
cmd.page = keys
@@ -131,7 +131,7 @@ func NewScanCmdResult(keys []string, cursor uint64, err error) *ScanCmd {
return &cmd
}
// NewClusterSlotsCmdResult returns a ClusterSlotsCmd initialised with val and err for testing
// NewClusterSlotsCmdResult returns a ClusterSlotsCmd initialised with val and err for testing.
func NewClusterSlotsCmdResult(val []ClusterSlot, err error) *ClusterSlotsCmd {
var cmd ClusterSlotsCmd
cmd.val = val
@@ -139,7 +139,7 @@ func NewClusterSlotsCmdResult(val []ClusterSlot, err error) *ClusterSlotsCmd {
return &cmd
}
// NewGeoLocationCmdResult returns a GeoLocationCmd initialised with val and err for testing
// NewGeoLocationCmdResult returns a GeoLocationCmd initialised with val and err for testing.
func NewGeoLocationCmdResult(val []GeoLocation, err error) *GeoLocationCmd {
var cmd GeoLocationCmd
cmd.locations = val
@@ -147,7 +147,7 @@ func NewGeoLocationCmdResult(val []GeoLocation, err error) *GeoLocationCmd {
return &cmd
}
// NewGeoPosCmdResult returns a GeoPosCmd initialised with val and err for testing
// NewGeoPosCmdResult returns a GeoPosCmd initialised with val and err for testing.
func NewGeoPosCmdResult(val []*GeoPos, err error) *GeoPosCmd {
var cmd GeoPosCmd
cmd.val = val
@@ -155,7 +155,7 @@ func NewGeoPosCmdResult(val []*GeoPos, err error) *GeoPosCmd {
return &cmd
}
// NewCommandsInfoCmdResult returns a CommandsInfoCmd initialised with val and err for testing
// NewCommandsInfoCmdResult returns a CommandsInfoCmd initialised with val and err for testing.
func NewCommandsInfoCmdResult(val map[string]*CommandInfo, err error) *CommandsInfoCmd {
var cmd CommandsInfoCmd
cmd.val = val
@@ -163,7 +163,7 @@ func NewCommandsInfoCmdResult(val map[string]*CommandInfo, err error) *CommandsI
return &cmd
}
// NewXMessageSliceCmdResult returns a XMessageSliceCmd initialised with val and err for testing
// NewXMessageSliceCmdResult returns a XMessageSliceCmd initialised with val and err for testing.
func NewXMessageSliceCmdResult(val []XMessage, err error) *XMessageSliceCmd {
var cmd XMessageSliceCmd
cmd.val = val
@@ -171,7 +171,7 @@ func NewXMessageSliceCmdResult(val []XMessage, err error) *XMessageSliceCmd {
return &cmd
}
// NewXStreamSliceCmdResult returns a XStreamSliceCmd initialised with val and err for testing
// NewXStreamSliceCmdResult returns a XStreamSliceCmd initialised with val and err for testing.
func NewXStreamSliceCmdResult(val []XStream, err error) *XStreamSliceCmd {
var cmd XStreamSliceCmd
cmd.val = val

349
vendor/github.com/go-redis/redis/v7/ring.go → vendor/github.com/go-redis/redis/v8/ring.go generated vendored
View File

@@ -2,72 +2,73 @@ package redis
import (
"context"
"crypto/tls"
"errors"
"fmt"
"math/rand"
"net"
"strconv"
"sync"
"sync/atomic"
"time"
"github.com/go-redis/redis/v7/internal"
"github.com/go-redis/redis/v7/internal/consistenthash"
"github.com/go-redis/redis/v7/internal/hashtag"
"github.com/go-redis/redis/v7/internal/pool"
"github.com/cespare/xxhash/v2"
"github.com/dgryski/go-rendezvous"
"github.com/go-redis/redis/v8/internal"
"github.com/go-redis/redis/v8/internal/hashtag"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/rand"
)
// Hash is type of hash function used in consistent hash.
type Hash consistenthash.Hash
var errRingShardsDown = errors.New("redis: all ring shards are down")
//------------------------------------------------------------------------------
type ConsistentHash interface {
Get(string) string
}
type rendezvousWrapper struct {
*rendezvous.Rendezvous
}
func (w rendezvousWrapper) Get(key string) string {
return w.Lookup(key)
}
func newRendezvous(shards []string) ConsistentHash {
return rendezvousWrapper{rendezvous.New(shards, xxhash.Sum64String)}
}
//------------------------------------------------------------------------------
// RingOptions are used to configure a ring client and should be
// passed to NewRing.
type RingOptions struct {
// Map of name => host:port addresses of ring shards.
Addrs map[string]string
// Map of name => password of ring shards, to allow different shards to have
// different passwords. It will be ignored if the Password field is set.
Passwords map[string]string
// NewClient creates a shard client with provided name and options.
NewClient func(name string, opt *Options) *Client
// Frequency of PING commands sent to check shards availability.
// Shard is considered down after 3 subsequent failed checks.
HeartbeatFrequency time.Duration
// Hash function used in consistent hash.
// Default is crc32.ChecksumIEEE.
Hash Hash
// Number of replicas in consistent hash.
// Default is 100 replicas.
// NewConsistentHash returns a consistent hash that is used
// to distribute keys across the shards.
//
// Higher number of replicas will provide less deviation, that is keys will be
// distributed to nodes more evenly.
//
// Following is deviation for common nreplicas:
// --------------------------------------------------------
// | nreplicas | standard error | 99% confidence interval |
// | 10 | 0.3152 | (0.37, 1.98) |
// | 100 | 0.0997 | (0.76, 1.28) |
// | 1000 | 0.0316 | (0.92, 1.09) |
// --------------------------------------------------------
//
// See https://arxiv.org/abs/1406.2294 for reference
HashReplicas int
// NewClient creates a shard client with provided name and options.
NewClient func(name string, opt *Options) *Client
// Optional hook that is called when a new shard is created.
OnNewShard func(*Client)
// See https://medium.com/@dgryski/consistent-hashing-algorithmic-tradeoffs-ef6b8e2fcae8
// for consistent hashing algorithmic tradeoffs.
NewConsistentHash func(shards []string) ConsistentHash
// Following options are copied from Options struct.
OnConnect func(*Conn) error
Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
OnConnect func(ctx context.Context, cn *Conn) error
DB int
Username string
Password string
DB int
MaxRetries int
MinRetryBackoff time.Duration
@@ -83,17 +84,31 @@ type RingOptions struct {
PoolTimeout time.Duration
IdleTimeout time.Duration
IdleCheckFrequency time.Duration
TLSConfig *tls.Config
Limiter Limiter
}
func (opt *RingOptions) init() {
if opt.NewClient == nil {
opt.NewClient = func(name string, opt *Options) *Client {
return NewClient(opt)
}
}
if opt.HeartbeatFrequency == 0 {
opt.HeartbeatFrequency = 500 * time.Millisecond
}
if opt.HashReplicas == 0 {
opt.HashReplicas = 100
if opt.NewConsistentHash == nil {
opt.NewConsistentHash = newRendezvous
}
if opt.MaxRetries == -1 {
opt.MaxRetries = 0
} else if opt.MaxRetries == 0 {
opt.MaxRetries = 3
}
switch opt.MinRetryBackoff {
case -1:
opt.MinRetryBackoff = 0
@@ -108,12 +123,16 @@ func (opt *RingOptions) init() {
}
}
func (opt *RingOptions) clientOptions(shard string) *Options {
func (opt *RingOptions) clientOptions() *Options {
return &Options{
Dialer: opt.Dialer,
OnConnect: opt.OnConnect,
Username: opt.Username,
Password: opt.Password,
DB: opt.DB,
Password: opt.getPassword(shard),
MaxRetries: -1,
DialTimeout: opt.DialTimeout,
ReadTimeout: opt.ReadTimeout,
@@ -125,14 +144,10 @@ func (opt *RingOptions) clientOptions(shard string) *Options {
PoolTimeout: opt.PoolTimeout,
IdleTimeout: opt.IdleTimeout,
IdleCheckFrequency: opt.IdleCheckFrequency,
}
}
func (opt *RingOptions) getPassword(shard string) string {
if opt.Password == "" {
return opt.Passwords[shard]
TLSConfig: opt.TLSConfig,
Limiter: opt.Limiter,
}
return opt.Password
}
//------------------------------------------------------------------------------
@@ -142,6 +157,15 @@ type ringShard struct {
down int32
}
func newRingShard(opt *RingOptions, name, addr string) *ringShard {
clopt := opt.clientOptions()
clopt.Addr = addr
return &ringShard{
Client: opt.NewClient(name, clopt),
}
}
func (shard *ringShard) String() string {
var state string
if shard.IsUp() {
@@ -182,41 +206,59 @@ func (shard *ringShard) Vote(up bool) bool {
type ringShards struct {
opt *RingOptions
mu sync.RWMutex
hash *consistenthash.Map
shards map[string]*ringShard // read only
list []*ringShard // read only
len int
closed bool
mu sync.RWMutex
hash ConsistentHash
shards map[string]*ringShard // read only
list []*ringShard // read only
numShard int
closed bool
}
func newRingShards(opt *RingOptions) *ringShards {
return &ringShards{
shards := make(map[string]*ringShard, len(opt.Addrs))
list := make([]*ringShard, 0, len(shards))
for name, addr := range opt.Addrs {
shard := newRingShard(opt, name, addr)
shards[name] = shard
list = append(list, shard)
}
c := &ringShards{
opt: opt,
hash: newConsistentHash(opt),
shards: make(map[string]*ringShard),
shards: shards,
list: list,
}
}
c.rebalance()
func (c *ringShards) Add(name string, cl *Client) {
shard := &ringShard{Client: cl}
c.hash.Add(name)
c.shards[name] = shard
c.list = append(c.list, shard)
return c
}
func (c *ringShards) List() []*ringShard {
var list []*ringShard
c.mu.RLock()
list := c.list
if !c.closed {
list = c.list
}
c.mu.RUnlock()
return list
}
func (c *ringShards) Hash(key string) string {
key = hashtag.Key(key)
var hash string
c.mu.RLock()
hash := c.hash.Get(key)
if c.numShard > 0 {
hash = c.hash.Get(key)
}
c.mu.RUnlock()
return hash
}
@@ -230,6 +272,11 @@ func (c *ringShards) GetByKey(key string) (*ringShard, error) {
return nil, pool.ErrClosed
}
if c.numShard == 0 {
c.mu.RUnlock()
return nil, errRingShardsDown
}
hash := c.hash.Get(key)
if hash == "" {
c.mu.RUnlock()
@@ -242,13 +289,13 @@ func (c *ringShards) GetByKey(key string) (*ringShard, error) {
return shard, nil
}
func (c *ringShards) GetByHash(name string) (*ringShard, error) {
if name == "" {
func (c *ringShards) GetByName(shardName string) (*ringShard, error) {
if shardName == "" {
return c.Random()
}
c.mu.RLock()
shard := c.shards[name]
shard := c.shards[shardName]
c.mu.RUnlock()
return shard, nil
}
@@ -261,23 +308,16 @@ func (c *ringShards) Random() (*ringShard, error) {
func (c *ringShards) Heartbeat(frequency time.Duration) {
ticker := time.NewTicker(frequency)
defer ticker.Stop()
ctx := context.Background()
for range ticker.C {
var rebalance bool
c.mu.RLock()
if c.closed {
c.mu.RUnlock()
break
}
shards := c.list
c.mu.RUnlock()
for _, shard := range shards {
err := shard.Client.Ping().Err()
if shard.Vote(err == nil || err == pool.ErrPoolTimeout) {
internal.Logger.Printf("ring shard state changed: %s", shard)
for _, shard := range c.List() {
err := shard.Client.Ping(ctx).Err()
isUp := err == nil || err == pool.ErrPoolTimeout
if shard.Vote(isUp) {
internal.Logger.Printf(context.Background(), "ring shard state changed: %s", shard)
rebalance = true
}
}
@@ -294,24 +334,25 @@ func (c *ringShards) rebalance() {
shards := c.shards
c.mu.RUnlock()
hash := newConsistentHash(c.opt)
var shardsNum int
liveShards := make([]string, 0, len(shards))
for name, shard := range shards {
if shard.IsUp() {
hash.Add(name)
shardsNum++
liveShards = append(liveShards, name)
}
}
hash := c.opt.NewConsistentHash(liveShards)
c.mu.Lock()
c.hash = hash
c.len = shardsNum
c.numShard = len(liveShards)
c.mu.Unlock()
}
func (c *ringShards) Len() int {
c.mu.RLock()
l := c.len
l := c.numShard
c.mu.RUnlock()
return l
}
@@ -377,34 +418,15 @@ func NewRing(opt *RingOptions) *Ring {
},
ctx: context.Background(),
}
ring.cmdsInfoCache = newCmdsInfoCache(ring.cmdsInfo)
ring.cmdable = ring.Process
for name, addr := range opt.Addrs {
shard := newRingShard(opt, name, addr)
ring.shards.Add(name, shard)
}
go ring.shards.Heartbeat(opt.HeartbeatFrequency)
return &ring
}
func newRingShard(opt *RingOptions, name, addr string) *Client {
clopt := opt.clientOptions(name)
clopt.Addr = addr
var shard *Client
if opt.NewClient != nil {
shard = opt.NewClient(name, clopt)
} else {
shard = NewClient(clopt)
}
if opt.OnNewShard != nil {
opt.OnNewShard(shard)
}
return shard
}
func (c *Ring) Context() context.Context {
return c.ctx
}
@@ -421,21 +443,13 @@ func (c *Ring) WithContext(ctx context.Context) *Ring {
}
// Do creates a Cmd from the args and processes the cmd.
func (c *Ring) Do(args ...interface{}) *Cmd {
return c.DoContext(c.ctx, args...)
}
func (c *Ring) DoContext(ctx context.Context, args ...interface{}) *Cmd {
cmd := NewCmd(args...)
_ = c.ProcessContext(ctx, cmd)
func (c *Ring) Do(ctx context.Context, args ...interface{}) *Cmd {
cmd := NewCmd(ctx, args...)
_ = c.Process(ctx, cmd)
return cmd
}
func (c *Ring) Process(cmd Cmder) error {
return c.ProcessContext(c.ctx, cmd)
}
func (c *Ring) ProcessContext(ctx context.Context, cmd Cmder) error {
func (c *Ring) Process(ctx context.Context, cmd Cmder) error {
return c.hooks.process(ctx, cmd, c.process)
}
@@ -469,36 +483,39 @@ func (c *Ring) Len() int {
}
// Subscribe subscribes the client to the specified channels.
func (c *Ring) Subscribe(channels ...string) *PubSub {
func (c *Ring) Subscribe(ctx context.Context, channels ...string) *PubSub {
if len(channels) == 0 {
panic("at least one channel is required")
}
shard, err := c.shards.GetByKey(channels[0])
if err != nil {
//TODO: return PubSub with sticky error
// TODO: return PubSub with sticky error
panic(err)
}
return shard.Client.Subscribe(channels...)
return shard.Client.Subscribe(ctx, channels...)
}
// PSubscribe subscribes the client to the given patterns.
func (c *Ring) PSubscribe(channels ...string) *PubSub {
func (c *Ring) PSubscribe(ctx context.Context, channels ...string) *PubSub {
if len(channels) == 0 {
panic("at least one channel is required")
}
shard, err := c.shards.GetByKey(channels[0])
if err != nil {
//TODO: return PubSub with sticky error
// TODO: return PubSub with sticky error
panic(err)
}
return shard.Client.PSubscribe(channels...)
return shard.Client.PSubscribe(ctx, channels...)
}
// ForEachShard concurrently calls the fn on each live shard in the ring.
// It returns the first error if any.
func (c *Ring) ForEachShard(fn func(client *Client) error) error {
func (c *Ring) ForEachShard(
ctx context.Context,
fn func(ctx context.Context, client *Client) error,
) error {
shards := c.shards.List()
var wg sync.WaitGroup
errCh := make(chan error, 1)
@@ -510,7 +527,7 @@ func (c *Ring) ForEachShard(fn func(client *Client) error) error {
wg.Add(1)
go func(shard *ringShard) {
defer wg.Done()
err := fn(shard.Client)
err := fn(ctx, shard.Client)
if err != nil {
select {
case errCh <- err:
@@ -529,11 +546,11 @@ func (c *Ring) ForEachShard(fn func(client *Client) error) error {
}
}
func (c *Ring) cmdsInfo() (map[string]*CommandInfo, error) {
func (c *Ring) cmdsInfo(ctx context.Context) (map[string]*CommandInfo, error) {
shards := c.shards.List()
firstErr := errRingShardsDown
var firstErr error
for _, shard := range shards {
cmdsInfo, err := shard.Client.Command().Result()
cmdsInfo, err := shard.Client.Command(ctx).Result()
if err == nil {
return cmdsInfo, nil
}
@@ -541,23 +558,26 @@ func (c *Ring) cmdsInfo() (map[string]*CommandInfo, error) {
firstErr = err
}
}
if firstErr == nil {
return nil, errRingShardsDown
}
return nil, firstErr
}
func (c *Ring) cmdInfo(name string) *CommandInfo {
cmdsInfo, err := c.cmdsInfoCache.Get()
func (c *Ring) cmdInfo(ctx context.Context, name string) *CommandInfo {
cmdsInfo, err := c.cmdsInfoCache.Get(ctx)
if err != nil {
return nil
}
info := cmdsInfo[name]
if info == nil {
internal.Logger.Printf("info for cmd=%s not found", name)
internal.Logger.Printf(c.Context(), "info for cmd=%s not found", name)
}
return info
}
func (c *Ring) cmdShard(cmd Cmder) (*ringShard, error) {
cmdInfo := c.cmdInfo(cmd.Name())
func (c *Ring) cmdShard(ctx context.Context, cmd Cmder) (*ringShard, error) {
cmdInfo := c.cmdInfo(ctx, cmd.Name())
pos := cmdFirstKeyPos(cmd, cmdInfo)
if pos == 0 {
return c.shards.Random()
@@ -567,15 +587,6 @@ func (c *Ring) cmdShard(cmd Cmder) (*ringShard, error) {
}
func (c *Ring) process(ctx context.Context, cmd Cmder) error {
err := c._process(ctx, cmd)
if err != nil {
cmd.SetErr(err)
return err
}
return nil
}
func (c *Ring) _process(ctx context.Context, cmd Cmder) error {
var lastErr error
for attempt := 0; attempt <= c.opt.MaxRetries; attempt++ {
if attempt > 0 {
@@ -584,21 +595,21 @@ func (c *Ring) _process(ctx context.Context, cmd Cmder) error {
}
}
shard, err := c.cmdShard(cmd)
shard, err := c.cmdShard(ctx, cmd)
if err != nil {
return err
}
lastErr = shard.Client.ProcessContext(ctx, cmd)
if lastErr == nil || !isRetryableError(lastErr, cmd.readTimeout() == nil) {
lastErr = shard.Client.Process(ctx, cmd)
if lastErr == nil || !shouldRetry(lastErr, cmd.readTimeout() == nil) {
return lastErr
}
}
return lastErr
}
func (c *Ring) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipeline().Pipelined(fn)
func (c *Ring) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipeline().Pipelined(ctx, fn)
}
func (c *Ring) Pipeline() Pipeliner {
@@ -616,8 +627,8 @@ func (c *Ring) processPipeline(ctx context.Context, cmds []Cmder) error {
})
}
func (c *Ring) TxPipelined(fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(fn)
func (c *Ring) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(ctx, fn)
}
func (c *Ring) TxPipeline() Pipeliner {
@@ -640,10 +651,10 @@ func (c *Ring) generalProcessPipeline(
) error {
cmdsMap := make(map[string][]Cmder)
for _, cmd := range cmds {
cmdInfo := c.cmdInfo(cmd.Name())
cmdInfo := c.cmdInfo(ctx, cmd.Name())
hash := cmd.stringArg(cmdFirstKeyPos(cmd, cmdInfo))
if hash != "" {
hash = c.shards.Hash(hashtag.Key(hash))
hash = c.shards.Hash(hash)
}
cmdsMap[hash] = append(cmdsMap[hash], cmd)
}
@@ -665,30 +676,20 @@ func (c *Ring) generalProcessPipeline(
func (c *Ring) processShardPipeline(
ctx context.Context, hash string, cmds []Cmder, tx bool,
) error {
//TODO: retry?
shard, err := c.shards.GetByHash(hash)
// TODO: retry?
shard, err := c.shards.GetByName(hash)
if err != nil {
setCmdsErr(cmds, err)
return err
}
if tx {
err = shard.Client.processTxPipeline(ctx, cmds)
} else {
err = shard.Client.processPipeline(ctx, cmds)
return shard.Client.processTxPipeline(ctx, cmds)
}
return err
return shard.Client.processPipeline(ctx, cmds)
}
// Close closes the ring client, releasing any open resources.
//
// It is rare to Close a Ring, as the Ring is meant to be long-lived
// and shared between many goroutines.
func (c *Ring) Close() error {
return c.shards.Close()
}
func (c *Ring) Watch(fn func(*Tx) error, keys ...string) error {
func (c *Ring) Watch(ctx context.Context, fn func(*Tx) error, keys ...string) error {
if len(keys) == 0 {
return fmt.Errorf("redis: Watch requires at least one key")
}
@@ -718,9 +719,13 @@ func (c *Ring) Watch(fn func(*Tx) error, keys ...string) error {
}
}
return shards[0].Client.Watch(fn, keys...)
return shards[0].Client.Watch(ctx, fn, keys...)
}
func newConsistentHash(opt *RingOptions) *consistenthash.Map {
return consistenthash.New(opt.HashReplicas, consistenthash.Hash(opt.Hash))
// Close closes the ring client, releasing any open resources.
//
// It is rare to Close a Ring, as the Ring is meant to be long-lived
// and shared between many goroutines.
func (c *Ring) Close() error {
return c.shards.Close()
}

65
vendor/github.com/go-redis/redis/v8/script.go generated vendored Normal file
View File

@@ -0,0 +1,65 @@
package redis
import (
"context"
"crypto/sha1"
"encoding/hex"
"io"
"strings"
)
type Scripter interface {
Eval(ctx context.Context, script string, keys []string, args ...interface{}) *Cmd
EvalSha(ctx context.Context, sha1 string, keys []string, args ...interface{}) *Cmd
ScriptExists(ctx context.Context, hashes ...string) *BoolSliceCmd
ScriptLoad(ctx context.Context, script string) *StringCmd
}
var (
_ Scripter = (*Client)(nil)
_ Scripter = (*Ring)(nil)
_ Scripter = (*ClusterClient)(nil)
)
type Script struct {
src, hash string
}
func NewScript(src string) *Script {
h := sha1.New()
_, _ = io.WriteString(h, src)
return &Script{
src: src,
hash: hex.EncodeToString(h.Sum(nil)),
}
}
func (s *Script) Hash() string {
return s.hash
}
func (s *Script) Load(ctx context.Context, c Scripter) *StringCmd {
return c.ScriptLoad(ctx, s.src)
}
func (s *Script) Exists(ctx context.Context, c Scripter) *BoolSliceCmd {
return c.ScriptExists(ctx, s.hash)
}
func (s *Script) Eval(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
return c.Eval(ctx, s.src, keys, args...)
}
func (s *Script) EvalSha(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
return c.EvalSha(ctx, s.hash, keys, args...)
}
// Run optimistically uses EVALSHA to run the script. If script does not exist
// it is retried using EVAL.
func (s *Script) Run(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
r := s.EvalSha(ctx, c, keys, args...)
if err := r.Err(); err != nil && strings.HasPrefix(err.Error(), "NOSCRIPT ") {
return s.Eval(ctx, c, keys, args...)
}
return r
}

738
vendor/github.com/go-redis/redis/v8/sentinel.go generated vendored Normal file
View File

@@ -0,0 +1,738 @@
package redis
import (
"context"
"crypto/tls"
"errors"
"net"
"strings"
"sync"
"time"
"github.com/go-redis/redis/v8/internal"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/rand"
)
//------------------------------------------------------------------------------
// FailoverOptions are used to configure a failover client and should
// be passed to NewFailoverClient.
type FailoverOptions struct {
// The master name.
MasterName string
// A seed list of host:port addresses of sentinel nodes.
SentinelAddrs []string
// Sentinel password from "requirepass <password>" (if enabled) in Sentinel configuration
SentinelPassword string
// Allows routing read-only commands to the closest master or slave node.
// This option only works with NewFailoverClusterClient.
RouteByLatency bool
// Allows routing read-only commands to the random master or slave node.
// This option only works with NewFailoverClusterClient.
RouteRandomly bool
// Route all commands to slave read-only nodes.
SlaveOnly bool
// Following options are copied from Options struct.
Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
OnConnect func(ctx context.Context, cn *Conn) error
Username string
Password string
DB int
MaxRetries int
MinRetryBackoff time.Duration
MaxRetryBackoff time.Duration
DialTimeout time.Duration
ReadTimeout time.Duration
WriteTimeout time.Duration
PoolSize int
MinIdleConns int
MaxConnAge time.Duration
PoolTimeout time.Duration
IdleTimeout time.Duration
IdleCheckFrequency time.Duration
TLSConfig *tls.Config
}
func (opt *FailoverOptions) clientOptions() *Options {
return &Options{
Addr: "FailoverClient",
Dialer: opt.Dialer,
OnConnect: opt.OnConnect,
DB: opt.DB,
Username: opt.Username,
Password: opt.Password,
MaxRetries: opt.MaxRetries,
MinRetryBackoff: opt.MinRetryBackoff,
MaxRetryBackoff: opt.MaxRetryBackoff,
DialTimeout: opt.DialTimeout,
ReadTimeout: opt.ReadTimeout,
WriteTimeout: opt.WriteTimeout,
PoolSize: opt.PoolSize,
PoolTimeout: opt.PoolTimeout,
IdleTimeout: opt.IdleTimeout,
IdleCheckFrequency: opt.IdleCheckFrequency,
MinIdleConns: opt.MinIdleConns,
MaxConnAge: opt.MaxConnAge,
TLSConfig: opt.TLSConfig,
}
}
func (opt *FailoverOptions) sentinelOptions(addr string) *Options {
return &Options{
Addr: addr,
Dialer: opt.Dialer,
OnConnect: opt.OnConnect,
DB: 0,
Password: opt.SentinelPassword,
MaxRetries: opt.MaxRetries,
MinRetryBackoff: opt.MinRetryBackoff,
MaxRetryBackoff: opt.MaxRetryBackoff,
DialTimeout: opt.DialTimeout,
ReadTimeout: opt.ReadTimeout,
WriteTimeout: opt.WriteTimeout,
PoolSize: opt.PoolSize,
PoolTimeout: opt.PoolTimeout,
IdleTimeout: opt.IdleTimeout,
IdleCheckFrequency: opt.IdleCheckFrequency,
MinIdleConns: opt.MinIdleConns,
MaxConnAge: opt.MaxConnAge,
TLSConfig: opt.TLSConfig,
}
}
func (opt *FailoverOptions) clusterOptions() *ClusterOptions {
return &ClusterOptions{
Dialer: opt.Dialer,
OnConnect: opt.OnConnect,
Username: opt.Username,
Password: opt.Password,
MaxRedirects: opt.MaxRetries,
RouteByLatency: opt.RouteByLatency,
RouteRandomly: opt.RouteRandomly,
MinRetryBackoff: opt.MinRetryBackoff,
MaxRetryBackoff: opt.MaxRetryBackoff,
DialTimeout: opt.DialTimeout,
ReadTimeout: opt.ReadTimeout,
WriteTimeout: opt.WriteTimeout,
PoolSize: opt.PoolSize,
PoolTimeout: opt.PoolTimeout,
IdleTimeout: opt.IdleTimeout,
IdleCheckFrequency: opt.IdleCheckFrequency,
MinIdleConns: opt.MinIdleConns,
MaxConnAge: opt.MaxConnAge,
TLSConfig: opt.TLSConfig,
}
}
// NewFailoverClient returns a Redis client that uses Redis Sentinel
// for automatic failover. It's safe for concurrent use by multiple
// goroutines.
func NewFailoverClient(failoverOpt *FailoverOptions) *Client {
if failoverOpt.RouteByLatency {
panic("to route commands by latency, use NewFailoverClusterClient")
}
if failoverOpt.RouteRandomly {
panic("to route commands randomly, use NewFailoverClusterClient")
}
sentinelAddrs := make([]string, len(failoverOpt.SentinelAddrs))
copy(sentinelAddrs, failoverOpt.SentinelAddrs)
failover := &sentinelFailover{
opt: failoverOpt,
sentinelAddrs: sentinelAddrs,
}
opt := failoverOpt.clientOptions()
opt.Dialer = masterSlaveDialer(failover)
opt.init()
connPool := newConnPool(opt)
failover.mu.Lock()
failover.onFailover = func(ctx context.Context, addr string) {
_ = connPool.Filter(func(cn *pool.Conn) bool {
return cn.RemoteAddr().String() != addr
})
}
failover.mu.Unlock()
c := Client{
baseClient: newBaseClient(opt, connPool),
ctx: context.Background(),
}
c.cmdable = c.Process
c.onClose = failover.Close
return &c
}
func masterSlaveDialer(
failover *sentinelFailover,
) func(ctx context.Context, network, addr string) (net.Conn, error) {
return func(ctx context.Context, network, _ string) (net.Conn, error) {
var addr string
var err error
if failover.opt.SlaveOnly {
addr, err = failover.RandomSlaveAddr(ctx)
} else {
addr, err = failover.MasterAddr(ctx)
if err == nil {
failover.trySwitchMaster(ctx, addr)
}
}
if err != nil {
return nil, err
}
if failover.opt.Dialer != nil {
return failover.opt.Dialer(ctx, network, addr)
}
return net.DialTimeout("tcp", addr, failover.opt.DialTimeout)
}
}
//------------------------------------------------------------------------------
// SentinelClient is a client for a Redis Sentinel.
type SentinelClient struct {
*baseClient
hooks
ctx context.Context
}
func NewSentinelClient(opt *Options) *SentinelClient {
opt.init()
c := &SentinelClient{
baseClient: &baseClient{
opt: opt,
connPool: newConnPool(opt),
},
ctx: context.Background(),
}
return c
}
func (c *SentinelClient) Context() context.Context {
return c.ctx
}
func (c *SentinelClient) WithContext(ctx context.Context) *SentinelClient {
if ctx == nil {
panic("nil context")
}
clone := *c
clone.ctx = ctx
return &clone
}
func (c *SentinelClient) Process(ctx context.Context, cmd Cmder) error {
return c.hooks.process(ctx, cmd, c.baseClient.process)
}
func (c *SentinelClient) pubSub() *PubSub {
pubsub := &PubSub{
opt: c.opt,
newConn: func(ctx context.Context, channels []string) (*pool.Conn, error) {
return c.newConn(ctx)
},
closeConn: c.connPool.CloseConn,
}
pubsub.init()
return pubsub
}
// Ping is used to test if a connection is still alive, or to
// measure latency.
func (c *SentinelClient) Ping(ctx context.Context) *StringCmd {
cmd := NewStringCmd(ctx, "ping")
_ = c.Process(ctx, cmd)
return cmd
}
// Subscribe subscribes the client to the specified channels.
// Channels can be omitted to create empty subscription.
func (c *SentinelClient) Subscribe(ctx context.Context, channels ...string) *PubSub {
pubsub := c.pubSub()
if len(channels) > 0 {
_ = pubsub.Subscribe(ctx, channels...)
}
return pubsub
}
// PSubscribe subscribes the client to the given patterns.
// Patterns can be omitted to create empty subscription.
func (c *SentinelClient) PSubscribe(ctx context.Context, channels ...string) *PubSub {
pubsub := c.pubSub()
if len(channels) > 0 {
_ = pubsub.PSubscribe(ctx, channels...)
}
return pubsub
}
func (c *SentinelClient) GetMasterAddrByName(ctx context.Context, name string) *StringSliceCmd {
cmd := NewStringSliceCmd(ctx, "sentinel", "get-master-addr-by-name", name)
_ = c.Process(ctx, cmd)
return cmd
}
func (c *SentinelClient) Sentinels(ctx context.Context, name string) *SliceCmd {
cmd := NewSliceCmd(ctx, "sentinel", "sentinels", name)
_ = c.Process(ctx, cmd)
return cmd
}
// Failover forces a failover as if the master was not reachable, and without
// asking for agreement to other Sentinels.
func (c *SentinelClient) Failover(ctx context.Context, name string) *StatusCmd {
cmd := NewStatusCmd(ctx, "sentinel", "failover", name)
_ = c.Process(ctx, cmd)
return cmd
}
// Reset resets all the masters with matching name. The pattern argument is a
// glob-style pattern. The reset process clears any previous state in a master
// (including a failover in progress), and removes every slave and sentinel
// already discovered and associated with the master.
func (c *SentinelClient) Reset(ctx context.Context, pattern string) *IntCmd {
cmd := NewIntCmd(ctx, "sentinel", "reset", pattern)
_ = c.Process(ctx, cmd)
return cmd
}
// FlushConfig forces Sentinel to rewrite its configuration on disk, including
// the current Sentinel state.
func (c *SentinelClient) FlushConfig(ctx context.Context) *StatusCmd {
cmd := NewStatusCmd(ctx, "sentinel", "flushconfig")
_ = c.Process(ctx, cmd)
return cmd
}
// Master shows the state and info of the specified master.
func (c *SentinelClient) Master(ctx context.Context, name string) *StringStringMapCmd {
cmd := NewStringStringMapCmd(ctx, "sentinel", "master", name)
_ = c.Process(ctx, cmd)
return cmd
}
// Masters shows a list of monitored masters and their state.
func (c *SentinelClient) Masters(ctx context.Context) *SliceCmd {
cmd := NewSliceCmd(ctx, "sentinel", "masters")
_ = c.Process(ctx, cmd)
return cmd
}
// Slaves shows a list of slaves for the specified master and their state.
func (c *SentinelClient) Slaves(ctx context.Context, name string) *SliceCmd {
cmd := NewSliceCmd(ctx, "sentinel", "slaves", name)
_ = c.Process(ctx, cmd)
return cmd
}
// CkQuorum checks if the current Sentinel configuration is able to reach the
// quorum needed to failover a master, and the majority needed to authorize the
// failover. This command should be used in monitoring systems to check if a
// Sentinel deployment is ok.
func (c *SentinelClient) CkQuorum(ctx context.Context, name string) *StringCmd {
cmd := NewStringCmd(ctx, "sentinel", "ckquorum", name)
_ = c.Process(ctx, cmd)
return cmd
}
// Monitor tells the Sentinel to start monitoring a new master with the specified
// name, ip, port, and quorum.
func (c *SentinelClient) Monitor(ctx context.Context, name, ip, port, quorum string) *StringCmd {
cmd := NewStringCmd(ctx, "sentinel", "monitor", name, ip, port, quorum)
_ = c.Process(ctx, cmd)
return cmd
}
// Set is used in order to change configuration parameters of a specific master.
func (c *SentinelClient) Set(ctx context.Context, name, option, value string) *StringCmd {
cmd := NewStringCmd(ctx, "sentinel", "set", name, option, value)
_ = c.Process(ctx, cmd)
return cmd
}
// Remove is used in order to remove the specified master: the master will no
// longer be monitored, and will totally be removed from the internal state of
// the Sentinel.
func (c *SentinelClient) Remove(ctx context.Context, name string) *StringCmd {
cmd := NewStringCmd(ctx, "sentinel", "remove", name)
_ = c.Process(ctx, cmd)
return cmd
}
//------------------------------------------------------------------------------
type sentinelFailover struct {
opt *FailoverOptions
sentinelAddrs []string
onFailover func(ctx context.Context, addr string)
onUpdate func(ctx context.Context)
mu sync.RWMutex
_masterAddr string
sentinel *SentinelClient
pubsub *PubSub
}
func (c *sentinelFailover) Close() error {
c.mu.Lock()
defer c.mu.Unlock()
if c.sentinel != nil {
return c.closeSentinel()
}
return nil
}
func (c *sentinelFailover) closeSentinel() error {
firstErr := c.pubsub.Close()
c.pubsub = nil
err := c.sentinel.Close()
if err != nil && firstErr == nil {
firstErr = err
}
c.sentinel = nil
return firstErr
}
func (c *sentinelFailover) RandomSlaveAddr(ctx context.Context) (string, error) {
addresses, err := c.slaveAddrs(ctx)
if err != nil {
return "", err
}
if len(addresses) == 0 {
return c.MasterAddr(ctx)
}
return addresses[rand.Intn(len(addresses))], nil
}
func (c *sentinelFailover) MasterAddr(ctx context.Context) (string, error) {
c.mu.RLock()
sentinel := c.sentinel
c.mu.RUnlock()
if sentinel != nil {
addr := c.getMasterAddr(ctx, sentinel)
if addr != "" {
return addr, nil
}
}
c.mu.Lock()
defer c.mu.Unlock()
if c.sentinel != nil {
addr := c.getMasterAddr(ctx, c.sentinel)
if addr != "" {
return addr, nil
}
_ = c.closeSentinel()
}
for i, sentinelAddr := range c.sentinelAddrs {
sentinel := NewSentinelClient(c.opt.sentinelOptions(sentinelAddr))
masterAddr, err := sentinel.GetMasterAddrByName(ctx, c.opt.MasterName).Result()
if err != nil {
internal.Logger.Printf(ctx, "sentinel: GetMasterAddrByName master=%q failed: %s",
c.opt.MasterName, err)
_ = sentinel.Close()
continue
}
// Push working sentinel to the top.
c.sentinelAddrs[0], c.sentinelAddrs[i] = c.sentinelAddrs[i], c.sentinelAddrs[0]
c.setSentinel(ctx, sentinel)
addr := net.JoinHostPort(masterAddr[0], masterAddr[1])
return addr, nil
}
return "", errors.New("redis: all sentinels specified in configuration are unreachable")
}
func (c *sentinelFailover) slaveAddrs(ctx context.Context) ([]string, error) {
c.mu.RLock()
sentinel := c.sentinel
c.mu.RUnlock()
if sentinel != nil {
addrs := c.getSlaveAddrs(ctx, sentinel)
if len(addrs) > 0 {
return addrs, nil
}
}
c.mu.Lock()
defer c.mu.Unlock()
if c.sentinel != nil {
addrs := c.getSlaveAddrs(ctx, c.sentinel)
if len(addrs) > 0 {
return addrs, nil
}
_ = c.closeSentinel()
}
for i, sentinelAddr := range c.sentinelAddrs {
sentinel := NewSentinelClient(c.opt.sentinelOptions(sentinelAddr))
slaves, err := sentinel.Slaves(ctx, c.opt.MasterName).Result()
if err != nil {
internal.Logger.Printf(ctx, "sentinel: Slaves master=%q failed: %s",
c.opt.MasterName, err)
_ = sentinel.Close()
continue
}
// Push working sentinel to the top.
c.sentinelAddrs[0], c.sentinelAddrs[i] = c.sentinelAddrs[i], c.sentinelAddrs[0]
c.setSentinel(ctx, sentinel)
addrs := parseSlaveAddrs(slaves)
return addrs, nil
}
return []string{}, errors.New("redis: all sentinels specified in configuration are unreachable")
}
func (c *sentinelFailover) getMasterAddr(ctx context.Context, sentinel *SentinelClient) string {
addr, err := sentinel.GetMasterAddrByName(ctx, c.opt.MasterName).Result()
if err != nil {
internal.Logger.Printf(ctx, "sentinel: GetMasterAddrByName name=%q failed: %s",
c.opt.MasterName, err)
return ""
}
return net.JoinHostPort(addr[0], addr[1])
}
func (c *sentinelFailover) getSlaveAddrs(ctx context.Context, sentinel *SentinelClient) []string {
addrs, err := sentinel.Slaves(ctx, c.opt.MasterName).Result()
if err != nil {
internal.Logger.Printf(ctx, "sentinel: Slaves name=%q failed: %s",
c.opt.MasterName, err)
return []string{}
}
return parseSlaveAddrs(addrs)
}
func parseSlaveAddrs(addrs []interface{}) []string {
nodes := make([]string, 0, len(addrs))
for _, node := range addrs {
ip := ""
port := ""
flags := []string{}
lastkey := ""
isDown := false
for _, key := range node.([]interface{}) {
switch lastkey {
case "ip":
ip = key.(string)
case "port":
port = key.(string)
case "flags":
flags = strings.Split(key.(string), ",")
}
lastkey = key.(string)
}
for _, flag := range flags {
switch flag {
case "s_down", "o_down", "disconnected":
isDown = true
}
}
if !isDown {
nodes = append(nodes, net.JoinHostPort(ip, port))
}
}
return nodes
}
func (c *sentinelFailover) trySwitchMaster(ctx context.Context, addr string) {
c.mu.RLock()
currentAddr := c._masterAddr
c.mu.RUnlock()
if addr == currentAddr {
return
}
c.mu.Lock()
defer c.mu.Unlock()
if addr == c._masterAddr {
return
}
c._masterAddr = addr
internal.Logger.Printf(ctx, "sentinel: new master=%q addr=%q",
c.opt.MasterName, addr)
if c.onFailover != nil {
c.onFailover(ctx, addr)
}
}
func (c *sentinelFailover) setSentinel(ctx context.Context, sentinel *SentinelClient) {
if c.sentinel != nil {
panic("not reached")
}
c.sentinel = sentinel
c.discoverSentinels(ctx)
c.pubsub = sentinel.Subscribe(ctx, "+switch-master", "+slave-reconf-done")
go c.listen(c.pubsub)
}
func (c *sentinelFailover) discoverSentinels(ctx context.Context) {
sentinels, err := c.sentinel.Sentinels(ctx, c.opt.MasterName).Result()
if err != nil {
internal.Logger.Printf(ctx, "sentinel: Sentinels master=%q failed: %s", c.opt.MasterName, err)
return
}
for _, sentinel := range sentinels {
vals := sentinel.([]interface{})
for i := 0; i < len(vals); i += 2 {
key := vals[i].(string)
if key == "name" {
sentinelAddr := vals[i+1].(string)
if !contains(c.sentinelAddrs, sentinelAddr) {
internal.Logger.Printf(ctx, "sentinel: discovered new sentinel=%q for master=%q",
sentinelAddr, c.opt.MasterName)
c.sentinelAddrs = append(c.sentinelAddrs, sentinelAddr)
}
}
}
}
}
func (c *sentinelFailover) listen(pubsub *PubSub) {
ctx := context.TODO()
if c.onUpdate != nil {
c.onUpdate(ctx)
}
ch := pubsub.Channel()
for msg := range ch {
if msg.Channel == "+switch-master" {
parts := strings.Split(msg.Payload, " ")
if parts[0] != c.opt.MasterName {
internal.Logger.Printf(pubsub.getContext(), "sentinel: ignore addr for master=%q", parts[0])
continue
}
addr := net.JoinHostPort(parts[3], parts[4])
c.trySwitchMaster(pubsub.getContext(), addr)
}
if c.onUpdate != nil {
c.onUpdate(ctx)
}
}
}
func contains(slice []string, str string) bool {
for _, s := range slice {
if s == str {
return true
}
}
return false
}
//------------------------------------------------------------------------------
// NewFailoverClusterClient returns a client that supports routing read-only commands
// to a slave node.
func NewFailoverClusterClient(failoverOpt *FailoverOptions) *ClusterClient {
sentinelAddrs := make([]string, len(failoverOpt.SentinelAddrs))
copy(sentinelAddrs, failoverOpt.SentinelAddrs)
failover := &sentinelFailover{
opt: failoverOpt,
sentinelAddrs: sentinelAddrs,
}
opt := failoverOpt.clusterOptions()
opt.ClusterSlots = func(ctx context.Context) ([]ClusterSlot, error) {
masterAddr, err := failover.MasterAddr(ctx)
if err != nil {
return nil, err
}
nodes := []ClusterNode{{
Addr: masterAddr,
}}
slaveAddrs, err := failover.slaveAddrs(ctx)
if err != nil {
return nil, err
}
for _, slaveAddr := range slaveAddrs {
nodes = append(nodes, ClusterNode{
Addr: slaveAddr,
})
}
slots := []ClusterSlot{
{
Start: 0,
End: 16383,
Nodes: nodes,
},
}
return slots, nil
}
c := NewClusterClient(opt)
failover.mu.Lock()
failover.onUpdate = func(ctx context.Context) {
c.ReloadState(ctx)
}
failover.mu.Unlock()
return c
}

51
vendor/github.com/go-redis/redis/v7/tx.go → vendor/github.com/go-redis/redis/v8/tx.go generated vendored
View File

@@ -3,8 +3,8 @@ package redis
import (
"context"
"github.com/go-redis/redis/v7/internal/pool"
"github.com/go-redis/redis/v7/internal/proto"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/proto"
)
// TxFailedErr transaction redis failed.
@@ -26,7 +26,7 @@ func (c *Client) newTx(ctx context.Context) *Tx {
tx := Tx{
baseClient: baseClient{
opt: c.opt,
connPool: pool.NewStickyConnPool(c.connPool.(*pool.ConnPool), true),
connPool: pool.NewStickyConnPool(c.connPool),
},
hooks: c.hooks.clone(),
ctx: ctx,
@@ -55,11 +55,7 @@ func (c *Tx) WithContext(ctx context.Context) *Tx {
return &clone
}
func (c *Tx) Process(cmd Cmder) error {
return c.ProcessContext(c.ctx, cmd)
}
func (c *Tx) ProcessContext(ctx context.Context, cmd Cmder) error {
func (c *Tx) Process(ctx context.Context, cmd Cmder) error {
return c.hooks.process(ctx, cmd, c.baseClient.process)
}
@@ -67,52 +63,45 @@ func (c *Tx) ProcessContext(ctx context.Context, cmd Cmder) error {
// for conditional execution if there are any keys.
//
// The transaction is automatically closed when fn exits.
func (c *Client) Watch(fn func(*Tx) error, keys ...string) error {
return c.WatchContext(c.ctx, fn, keys...)
}
func (c *Client) WatchContext(ctx context.Context, fn func(*Tx) error, keys ...string) error {
func (c *Client) Watch(ctx context.Context, fn func(*Tx) error, keys ...string) error {
tx := c.newTx(ctx)
defer tx.Close(ctx)
if len(keys) > 0 {
if err := tx.Watch(keys...).Err(); err != nil {
_ = tx.Close()
if err := tx.Watch(ctx, keys...).Err(); err != nil {
return err
}
}
err := fn(tx)
_ = tx.Close()
return err
return fn(tx)
}
// Close closes the transaction, releasing any open resources.
func (c *Tx) Close() error {
_ = c.Unwatch().Err()
func (c *Tx) Close(ctx context.Context) error {
_ = c.Unwatch(ctx).Err()
return c.baseClient.Close()
}
// Watch marks the keys to be watched for conditional execution
// of a transaction.
func (c *Tx) Watch(keys ...string) *StatusCmd {
func (c *Tx) Watch(ctx context.Context, keys ...string) *StatusCmd {
args := make([]interface{}, 1+len(keys))
args[0] = "watch"
for i, key := range keys {
args[1+i] = key
}
cmd := NewStatusCmd(args...)
_ = c.Process(cmd)
cmd := NewStatusCmd(ctx, args...)
_ = c.Process(ctx, cmd)
return cmd
}
// Unwatch flushes all the previously watched keys for a transaction.
func (c *Tx) Unwatch(keys ...string) *StatusCmd {
func (c *Tx) Unwatch(ctx context.Context, keys ...string) *StatusCmd {
args := make([]interface{}, 1+len(keys))
args[0] = "unwatch"
for i, key := range keys {
args[1+i] = key
}
cmd := NewStatusCmd(args...)
_ = c.Process(cmd)
cmd := NewStatusCmd(ctx, args...)
_ = c.Process(ctx, cmd)
return cmd
}
@@ -130,8 +119,8 @@ func (c *Tx) Pipeline() Pipeliner {
// Pipelined executes commands queued in the fn outside of the transaction.
// Use TxPipelined if you need transactional behavior.
func (c *Tx) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipeline().Pipelined(fn)
func (c *Tx) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipeline().Pipelined(ctx, fn)
}
// TxPipelined executes commands queued in the fn in the transaction.
@@ -142,8 +131,8 @@ func (c *Tx) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
// Exec always returns list of commands. If transaction fails
// TxFailedErr is returned. Otherwise Exec returns an error of the first
// failed command or nil.
func (c *Tx) TxPipelined(fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(fn)
func (c *Tx) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(ctx, fn)
}
// TxPipeline creates a pipeline. Usually it is more convenient to use TxPipelined.

56
vendor/github.com/go-redis/redis/v7/universal.go → vendor/github.com/go-redis/redis/v8/universal.go generated vendored
View File

@@ -20,23 +20,29 @@ type UniversalOptions struct {
// Common options.
Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
OnConnect func(*Conn) error
Username string
Password string
MaxRetries int
MinRetryBackoff time.Duration
MaxRetryBackoff time.Duration
DialTimeout time.Duration
ReadTimeout time.Duration
WriteTimeout time.Duration
Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
OnConnect func(ctx context.Context, cn *Conn) error
Username string
Password string
SentinelPassword string
MaxRetries int
MinRetryBackoff time.Duration
MaxRetryBackoff time.Duration
DialTimeout time.Duration
ReadTimeout time.Duration
WriteTimeout time.Duration
PoolSize int
MinIdleConns int
MaxConnAge time.Duration
PoolTimeout time.Duration
IdleTimeout time.Duration
IdleCheckFrequency time.Duration
TLSConfig *tls.Config
TLSConfig *tls.Config
// Only cluster clients.
@@ -100,9 +106,10 @@ func (o *UniversalOptions) Failover() *FailoverOptions {
Dialer: o.Dialer,
OnConnect: o.OnConnect,
DB: o.DB,
Username: o.Username,
Password: o.Password,
DB: o.DB,
Username: o.Username,
Password: o.Password,
SentinelPassword: o.SentinelPassword,
MaxRetries: o.MaxRetries,
MinRetryBackoff: o.MinRetryBackoff,
@@ -168,19 +175,20 @@ type UniversalClient interface {
Cmdable
Context() context.Context
AddHook(Hook)
Watch(fn func(*Tx) error, keys ...string) error
Do(args ...interface{}) *Cmd
DoContext(ctx context.Context, args ...interface{}) *Cmd
Process(cmd Cmder) error
ProcessContext(ctx context.Context, cmd Cmder) error
Subscribe(channels ...string) *PubSub
PSubscribe(channels ...string) *PubSub
Watch(ctx context.Context, fn func(*Tx) error, keys ...string) error
Do(ctx context.Context, args ...interface{}) *Cmd
Process(ctx context.Context, cmd Cmder) error
Subscribe(ctx context.Context, channels ...string) *PubSub
PSubscribe(ctx context.Context, channels ...string) *PubSub
Close() error
PoolStats() *PoolStats
}
var _ UniversalClient = (*Client)(nil)
var _ UniversalClient = (*ClusterClient)(nil)
var _ UniversalClient = (*Ring)(nil)
var (
_ UniversalClient = (*Client)(nil)
_ UniversalClient = (*ClusterClient)(nil)
_ UniversalClient = (*Ring)(nil)
)
// NewUniversalClient returns a new multi client. The type of client returned depends
// on the following three conditions: