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Merge pull request #398 from tidwall/Ensuring-channel-publish-order 

Ensuring channel publish order
This commit is contained in:
Josh Baker 2019-01-09 10:40:31 -07:00 committed by GitHub
parent fa0261db65 eb2ff76f86
commit c341ec1b6c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
40 changed files with 157 additions and 7003 deletions
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12
Gopkg.lock generated
View File

@ -85,17 +85,6 @@
revision = "aff15770515e3c57fc6109da73d42b0d46f7f483" revision = "aff15770515e3c57fc6109da73d42b0d46f7f483"
version = "v1.1.0" version = "v1.1.0"
[[projects]]
digest = "1:9525d0e79ccf382e32edeef466b9a91f16eb0eebdca5971a03fad1bb3be9cd89"
name = "github.com/garyburd/redigo"
packages = [
"internal",
"redis",
]
pruneopts = ""
revision = "a69d19351219b6dd56f274f96d85a7014a2ec34e"
version = "v1.6.0"
[[projects]] [[projects]]
digest = "1:e26d0f8ccaf4087b93306d5e20e4816258116868ad6c6da0f2b4926c72fb92fa" digest = "1:e26d0f8ccaf4087b93306d5e20e4816258116868ad6c6da0f2b4926c72fb92fa"
name = "github.com/go-ini/ini" name = "github.com/go-ini/ini"
@ -467,7 +456,6 @@
"github.com/aws/aws-sdk-go/aws/session", "github.com/aws/aws-sdk-go/aws/session",
"github.com/aws/aws-sdk-go/service/sqs", "github.com/aws/aws-sdk-go/service/sqs",
"github.com/eclipse/paho.mqtt.golang", "github.com/eclipse/paho.mqtt.golang",
"github.com/garyburd/redigo/redis",
"github.com/golang/protobuf/proto", "github.com/golang/protobuf/proto",
"github.com/gomodule/redigo/redis", "github.com/gomodule/redigo/redis",
"github.com/mmcloughlin/geohash", "github.com/mmcloughlin/geohash",

79
internal/server/aof.go
View File

@ -6,6 +6,7 @@ import (
"io" "io"
"net" "net"
"os" "os"
"sort"
"strconv" "strconv"
"strings" "strings"
"sync" "sync"
@ -14,6 +15,7 @@ import (
"github.com/tidwall/buntdb" "github.com/tidwall/buntdb"
"github.com/tidwall/geojson" "github.com/tidwall/geojson"
"github.com/tidwall/gjson"
"github.com/tidwall/redcon" "github.com/tidwall/redcon"
"github.com/tidwall/resp" "github.com/tidwall/resp"
"github.com/tidwall/tile38/internal/log" "github.com/tidwall/tile38/internal/log"
@ -232,34 +234,52 @@ func (server *Server) getQueueCandidates(d *commandDetails) []*Hook {
} }
func (server *Server) queueHooks(d *commandDetails) error { func (server *Server) queueHooks(d *commandDetails) error {
// big list of all of the messages // Create the slices that will store all messages and hooks
var hmsgs []string var cmsgs, wmsgs []string
var hooks []*Hook var whooks []*Hook
// Compile a slice of potential hook recipients
candidates := server.getQueueCandidates(d) candidates := server.getQueueCandidates(d)
for _, hook := range candidates { for _, hook := range candidates {
// match the fence // Calculate all matching fence messages for all candidates and append
// them to the appropriate message slice
msgs := FenceMatch(hook.Name, hook.ScanWriter, hook.Fence, hook.Metas, d) msgs := FenceMatch(hook.Name, hook.ScanWriter, hook.Fence, hook.Metas, d)
if len(msgs) > 0 { if len(msgs) > 0 {
if hook.channel { if hook.channel {
server.Publish(hook.Name, msgs...) cmsgs = append(cmsgs, msgs...)
} else { } else {
// append each msg to the big list wmsgs = append(wmsgs, msgs...)
hmsgs = append(hmsgs, msgs...) whooks = append(whooks, hook)
hooks = append(hooks, hook)
} }
} }
} }
if len(hmsgs) == 0 {
// Return nil if there are no messages to be sent
if len(cmsgs)+len(wmsgs) == 0 {
return nil return nil
} }
// queue the message in the buntdb database // Sort both message channel and webhook message slices
if len(cmsgs) > 1 {
sortMsgs(cmsgs)
}
if len(wmsgs) > 1 {
sortMsgs(wmsgs)
}
// Publish all channel messages if any exist
if len(cmsgs) > 0 {
for _, m := range cmsgs {
server.Publish(gjson.Get(m, "hook").String(), m)
}
}
// Queue the webhook messages in the buntdb database
err := server.qdb.Update(func(tx *buntdb.Tx) error { err := server.qdb.Update(func(tx *buntdb.Tx) error {
for _, msg := range hmsgs { for _, msg := range wmsgs {
server.qidx++ // increment the log id server.qidx++ // increment the log id
key := hookLogPrefix + uint64ToString(server.qidx) key := hookLogPrefix + uint64ToString(server.qidx)
_, _, err := tx.Set(key, string(msg), hookLogSetDefaults) _, _, err := tx.Set(key, msg, hookLogSetDefaults)
if err != nil { if err != nil {
return err return err
} }
@ -276,12 +296,45 @@ func (server *Server) queueHooks(d *commandDetails) error {
} }
// all the messages have been queued. // all the messages have been queued.
// notify the hooks // notify the hooks
for _, hook := range hooks { for _, hook := range whooks {
hook.Signal() hook.Signal()
} }
return nil return nil
} }
// sortMsgs sorts passed notification messages by their detect and hook fields
func sortMsgs(msgs []string) {
sort.SliceStable(msgs, func(i, j int) bool {
detectI := msgDetectCode(gjson.Get(msgs[i], "detect").String())
detectJ := msgDetectCode(gjson.Get(msgs[j], "detect").String())
if detectI < detectJ {
return true
}
if detectI > detectJ {
return false
}
hookI := gjson.Get(msgs[i], "hook").String()
hookJ := gjson.Get(msgs[j], "hook").String()
return hookI < hookJ
})
}
// msgDetectCode returns a weight value for the passed detect value
func msgDetectCode(detect string) int {
switch detect {
case "exit":
return 1
case "outside":
return 2
case "enter":
return 3
case "inside":
return 4
default:
return 0
}
}
// Converts string to an integer // Converts string to an integer
func stringToUint64(s string) uint64 { func stringToUint64(s string) uint64 {
n, _ := strconv.ParseUint(s, 10, 64) n, _ := strconv.ParseUint(s, 10, 64)

2
internal/server/hooks.go
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@ -204,7 +204,7 @@ func (c *Server) cmdSetHook(msg *Message, chanCmd bool) (
hook) hook)
} }
hook.Open() hook.Open() // Opens a goroutine to notify the hook
if !hook.expires.IsZero() { if !hook.expires.IsZero() {
c.hookex.Push(hook) c.hookex.Push(hook)
} }

90
tests/fence_test.go
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@ -6,8 +6,10 @@ import (
"errors" "errors"
"fmt" "fmt"
"io" "io"
"log"
"net" "net"
"strconv" "strconv"
"strings"
"testing" "testing"
"time" "time"
@ -17,6 +19,7 @@ import (
func subTestFence(t *testing.T, mc *mockServer) { func subTestFence(t *testing.T, mc *mockServer) {
runStep(t, mc, "basic", fence_basic_test) runStep(t, mc, "basic", fence_basic_test)
runStep(t, mc, "channel message order", fence_channel_message_order_test)
runStep(t, mc, "detect inside,outside", fence_detect_inside_test) runStep(t, mc, "detect inside,outside", fence_detect_inside_test)
} }
@ -153,6 +156,78 @@ func fence_basic_test(mc *mockServer) error {
} }
return nil return nil
} }
func fence_channel_message_order_test(mc *mockServer) error {
// Create a channel to store the goroutines error
finalErr := make(chan error)
// Concurrently subscribe for notifications
go func() {
// Create the subscription connection to Tile38 to subscribe for updates
sc, err := redis.Dial("tcp", fmt.Sprintf(":%d", mc.port))
if err != nil {
log.Println(err)
return
}
defer sc.Close()
// Subscribe the subscription client to the * pattern
psc := redis.PubSubConn{Conn: sc}
if err := psc.PSubscribe("*"); err != nil {
log.Println(err)
return
}
var msgs []string
// While not a permanent error on the connection.
loop:
for sc.Err() == nil {
switch v := psc.Receive().(type) {
case redis.Message:
msgs = append(msgs, string(v.Data))
if len(msgs) == 8 {
break loop
}
case error:
fmt.Printf(err.Error())
}
}
// Verify all messages
correctOrder := []string{"exit:A", "exit:B", "outside:A", "outside:B", "enter:C", "enter:D", "inside:C", "inside:D"}
for i := range msgs {
if gjson.Get(msgs[i], "detect").String()+":"+
gjson.Get(msgs[i], "hook").String() != correctOrder[i] {
finalErr <- errors.New("INVALID MESSAGE ORDER")
}
}
finalErr <- nil
}()
// Create the base connection for setting up points and geofences geofences
bc, err := redis.Dial("tcp", fmt.Sprintf(":%d", mc.port))
if err != nil {
return err
}
defer bc.Close()
// Fire all setup commands on the base client
for _, cmd := range []string{
"SET points point POINT 33.412529053733444 -111.93368911743164",
fmt.Sprintf(`SETCHAN A WITHIN points FENCE OBJECT {"type":"Polygon","coordinates":[[[-111.95205688476562,33.400491820565236],[-111.92630767822266,33.400491820565236],[-111.92630767822266,33.422272258866045],[-111.95205688476562,33.422272258866045],[-111.95205688476562,33.400491820565236]]]}`),
fmt.Sprintf(`SETCHAN B WITHIN points FENCE OBJECT {"type":"Polygon","coordinates":[[[-111.93952560424803,33.403501285221594],[-111.92630767822266,33.403501285221594],[-111.92630767822266,33.41997983836345],[-111.93952560424803,33.41997983836345],[-111.93952560424803,33.403501285221594]]]}`),
fmt.Sprintf(`SETCHAN C WITHIN points FENCE OBJECT {"type":"Polygon","coordinates":[[[-111.9255781173706,33.40342963251261],[-111.91201686859131,33.40342963251261],[-111.91201686859131,33.41994401881284],[-111.9255781173706,33.41994401881284],[-111.9255781173706,33.40342963251261]]]}`),
fmt.Sprintf(`SETCHAN D WITHIN points FENCE OBJECT {"type":"Polygon","coordinates":[[[-111.92562103271484,33.40063513076968],[-111.90021514892578,33.40063513076968],[-111.90021514892578,33.42212898435788],[-111.92562103271484,33.42212898435788],[-111.92562103271484,33.40063513076968]]]}`),
"SET points point POINT 33.412529053733444 -111.91909790039062",
} {
if _, err := do(bc, cmd); err != nil {
return err
}
}
return <-finalErr
}
func fence_detect_inside_test(mc *mockServer) error { func fence_detect_inside_test(mc *mockServer) error {
conn, err := net.Dial("tcp", fmt.Sprintf(":%d", mc.port)) conn, err := net.Dial("tcp", fmt.Sprintf(":%d", mc.port))
if err != nil { if err != nil {
@ -216,3 +291,18 @@ func fence_detect_inside_test(mc *mockServer) error {
} }
return nil return nil
} }
// do performs the passed command on the passed redis client
func do(c redis.Conn, cmd string) (interface{}, error) {
// Split out all parameters
params := strings.Split(cmd, " ")
// Produce a slice of interfaces for use in the arguments
var args []interface{}
for _, p := range params[1:] {
args = append(args, p)
}
// Perform the request and return the response
return c.Do(params[0], args...)
}

5
vendor/github.com/garyburd/redigo/.github/CONTRIBUTING.md generated vendored
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@ -1,5 +0,0 @@
Ask questions at
[StackOverflow](https://stackoverflow.com/questions/ask?tags=go+redis).
[Open an issue](https://github.com/garyburd/redigo/issues/new) to discuss your
plans before doing any work on Redigo.

1
vendor/github.com/garyburd/redigo/.github/ISSUE_TEMPLATE.md generated vendored
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@ -1 +0,0 @@
Ask questions at https://stackoverflow.com/questions/ask?tags=go+redis

20
vendor/github.com/garyburd/redigo/.travis.yml generated vendored
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@ -1,20 +0,0 @@
language: go
sudo: false
services:
- redis-server
go:
- 1.4
- 1.5.x
- 1.6.x
- 1.7.x
- 1.8.x
- 1.9.x
- 1.10.x
- tip
script:
- go get -t -v ./...
- diff -u <(echo -n) <(gofmt -d .)
- go vet $(go list ./... | grep -v /vendor/)
- go test -v -race ./...

175
vendor/github.com/garyburd/redigo/LICENSE generated vendored
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@ -1,175 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
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outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
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5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
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6. Trademarks. This License does not grant permission to use the trade
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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
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51
vendor/github.com/garyburd/redigo/README.markdown generated vendored
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@ -1,51 +0,0 @@
Redigo
======
[![Build Status](https://travis-ci.org/garyburd/redigo.svg?branch=master)](https://travis-ci.org/garyburd/redigo)
[![GoDoc](https://godoc.org/github.com/garyburd/redigo/redis?status.svg)](https://godoc.org/github.com/garyburd/redigo/redis)
Redigo is a [Go](http://golang.org/) client for the [Redis](http://redis.io/) database.
Features
-------
* A [Print-like](http://godoc.org/github.com/garyburd/redigo/redis#hdr-Executing_Commands) API with support for all Redis commands.
* [Pipelining](http://godoc.org/github.com/garyburd/redigo/redis#hdr-Pipelining), including pipelined transactions.
* [Publish/Subscribe](http://godoc.org/github.com/garyburd/redigo/redis#hdr-Publish_and_Subscribe).
* [Connection pooling](http://godoc.org/github.com/garyburd/redigo/redis#Pool).
* [Script helper type](http://godoc.org/github.com/garyburd/redigo/redis#Script) with optimistic use of EVALSHA.
* [Helper functions](http://godoc.org/github.com/garyburd/redigo/redis#hdr-Reply_Helpers) for working with command replies.
Documentation
-------------
- [API Reference](http://godoc.org/github.com/garyburd/redigo/redis)
- [FAQ](https://github.com/garyburd/redigo/wiki/FAQ)
- [Examples](https://godoc.org/github.com/garyburd/redigo/redis#pkg-examples)
Installation
------------
Install Redigo using the "go get" command:
go get github.com/garyburd/redigo/redis
The Go distribution is Redigo's only dependency.
Related Projects
----------------
- [rafaeljusto/redigomock](https://godoc.org/github.com/rafaeljusto/redigomock) - A mock library for Redigo.
- [chasex/redis-go-cluster](https://github.com/chasex/redis-go-cluster) - A Redis cluster client implementation.
- [FZambia/go-sentinel](https://github.com/FZambia/go-sentinel) - Redis Sentinel support for Redigo
- [PuerkitoBio/redisc](https://github.com/PuerkitoBio/redisc) - Redis Cluster client built on top of Redigo
Contributing
------------
See [CONTRIBUTING.md](https://github.com/garyburd/redigo/blob/master/.github/CONTRIBUTING.md).
License
-------
Redigo is available under the [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0.html).

54
vendor/github.com/garyburd/redigo/internal/commandinfo.go generated vendored
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@ -1,54 +0,0 @@
// Copyright 2014 Gary Burd
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package internal // import "github.com/garyburd/redigo/internal"
import (
"strings"
)
const (
WatchState = 1 << iota
MultiState
SubscribeState
MonitorState
)
type CommandInfo struct {
Set, Clear int
}
var commandInfos = map[string]CommandInfo{
"WATCH": {Set: WatchState},
"UNWATCH": {Clear: WatchState},
"MULTI": {Set: MultiState},
"EXEC": {Clear: WatchState | MultiState},
"DISCARD": {Clear: WatchState | MultiState},
"PSUBSCRIBE": {Set: SubscribeState},
"SUBSCRIBE": {Set: SubscribeState},
"MONITOR": {Set: MonitorState},
}
func init() {
for n, ci := range commandInfos {
commandInfos[strings.ToLower(n)] = ci
}
}
func LookupCommandInfo(commandName string) CommandInfo {
if ci, ok := commandInfos[commandName]; ok {
return ci
}
return commandInfos[strings.ToUpper(commandName)]
}

27
vendor/github.com/garyburd/redigo/internal/commandinfo_test.go generated vendored
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@ -1,27 +0,0 @@
package internal
import "testing"
func TestLookupCommandInfo(t *testing.T) {
for _, n := range []string{"watch", "WATCH", "wAtch"} {
if LookupCommandInfo(n) == (CommandInfo{}) {
t.Errorf("LookupCommandInfo(%q) = CommandInfo{}, expected non-zero value", n)
}
}
}
func benchmarkLookupCommandInfo(b *testing.B, names ...string) {
for i := 0; i < b.N; i++ {
for _, c := range names {
LookupCommandInfo(c)
}
}
}
func BenchmarkLookupCommandInfoCorrectCase(b *testing.B) {
benchmarkLookupCommandInfo(b, "watch", "WATCH", "monitor", "MONITOR")
}
func BenchmarkLookupCommandInfoMixedCase(b *testing.B) {
benchmarkLookupCommandInfo(b, "wAtch", "WeTCH", "monItor", "MONiTOR")
}

68
vendor/github.com/garyburd/redigo/internal/redistest/testdb.go generated vendored
View File

@ -1,68 +0,0 @@
// Copyright 2014 Gary Burd
//
// 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 redistest contains utilities for writing Redigo tests.
package redistest
import (
"errors"
"time"
"github.com/garyburd/redigo/redis"
)
type testConn struct {
redis.Conn
}
func (t testConn) Close() error {
_, err := t.Conn.Do("SELECT", "9")
if err != nil {
return nil
}
_, err = t.Conn.Do("FLUSHDB")
if err != nil {
return err
}
return t.Conn.Close()
}
// Dial dials the local Redis server and selects database 9. To prevent
// stomping on real data, DialTestDB fails if database 9 contains data. The
// returned connection flushes database 9 on close.
func Dial() (redis.Conn, error) {
c, err := redis.DialTimeout("tcp", ":6379", 0, 1*time.Second, 1*time.Second)
if err != nil {
return nil, err
}
_, err = c.Do("SELECT", "9")
if err != nil {
c.Close()
return nil, err
}
n, err := redis.Int(c.Do("DBSIZE"))
if err != nil {
c.Close()
return nil, err
}
if n != 0 {
c.Close()
return nil, errors.New("database #9 is not empty, test can not continue")
}
return testConn{c}, nil
}

673
vendor/github.com/garyburd/redigo/redis/conn.go generated vendored
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@ -1,673 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis
import (
"bufio"
"bytes"
"crypto/tls"
"errors"
"fmt"
"io"
"net"
"net/url"
"regexp"
"strconv"
"sync"
"time"
)
var (
_ ConnWithTimeout = (*conn)(nil)
)
// conn is the low-level implementation of Conn
type conn struct {
// Shared
mu sync.Mutex
pending int
err error
conn net.Conn
// Read
readTimeout time.Duration
br *bufio.Reader
// Write
writeTimeout time.Duration
bw *bufio.Writer
// Scratch space for formatting argument length.
// '*' or '$', length, "\r\n"
lenScratch [32]byte
// Scratch space for formatting integers and floats.
numScratch [40]byte
}
// DialTimeout acts like Dial but takes timeouts for establishing the
// connection to the server, writing a command and reading a reply.
//
// Deprecated: Use Dial with options instead.
func DialTimeout(network, address string, connectTimeout, readTimeout, writeTimeout time.Duration) (Conn, error) {
return Dial(network, address,
DialConnectTimeout(connectTimeout),
DialReadTimeout(readTimeout),
DialWriteTimeout(writeTimeout))
}
// DialOption specifies an option for dialing a Redis server.
type DialOption struct {
f func(*dialOptions)
}
type dialOptions struct {
readTimeout time.Duration
writeTimeout time.Duration
dialer *net.Dialer
dial func(network, addr string) (net.Conn, error)
db int
password string
useTLS bool
skipVerify bool
tlsConfig *tls.Config
}
// DialReadTimeout specifies the timeout for reading a single command reply.
func DialReadTimeout(d time.Duration) DialOption {
return DialOption{func(do *dialOptions) {
do.readTimeout = d
}}
}
// DialWriteTimeout specifies the timeout for writing a single command.
func DialWriteTimeout(d time.Duration) DialOption {
return DialOption{func(do *dialOptions) {
do.writeTimeout = d
}}
}
// DialConnectTimeout specifies the timeout for connecting to the Redis server when
// no DialNetDial option is specified.
func DialConnectTimeout(d time.Duration) DialOption {
return DialOption{func(do *dialOptions) {
do.dialer.Timeout = d
}}
}
// DialKeepAlive specifies the keep-alive period for TCP connections to the Redis server
// when no DialNetDial option is specified.
// If zero, keep-alives are not enabled. If no DialKeepAlive option is specified then
// the default of 5 minutes is used to ensure that half-closed TCP sessions are detected.
func DialKeepAlive(d time.Duration) DialOption {
return DialOption{func(do *dialOptions) {
do.dialer.KeepAlive = d
}}
}
// DialNetDial specifies a custom dial function for creating TCP
// connections, otherwise a net.Dialer customized via the other options is used.
// DialNetDial overrides DialConnectTimeout and DialKeepAlive.
func DialNetDial(dial func(network, addr string) (net.Conn, error)) DialOption {
return DialOption{func(do *dialOptions) {
do.dial = dial
}}
}
// DialDatabase specifies the database to select when dialing a connection.
func DialDatabase(db int) DialOption {
return DialOption{func(do *dialOptions) {
do.db = db
}}
}
// DialPassword specifies the password to use when connecting to
// the Redis server.
func DialPassword(password string) DialOption {
return DialOption{func(do *dialOptions) {
do.password = password
}}
}
// DialTLSConfig specifies the config to use when a TLS connection is dialed.
// Has no effect when not dialing a TLS connection.
func DialTLSConfig(c *tls.Config) DialOption {
return DialOption{func(do *dialOptions) {
do.tlsConfig = c
}}
}
// DialTLSSkipVerify disables server name verification when connecting over
// TLS. Has no effect when not dialing a TLS connection.
func DialTLSSkipVerify(skip bool) DialOption {
return DialOption{func(do *dialOptions) {
do.skipVerify = skip
}}
}
// DialUseTLS specifies whether TLS should be used when connecting to the
// server. This option is ignore by DialURL.
func DialUseTLS(useTLS bool) DialOption {
return DialOption{func(do *dialOptions) {
do.useTLS = useTLS
}}
}
// Dial connects to the Redis server at the given network and
// address using the specified options.
func Dial(network, address string, options ...DialOption) (Conn, error) {
do := dialOptions{
dialer: &net.Dialer{
KeepAlive: time.Minute * 5,
},
}
for _, option := range options {
option.f(&do)
}
if do.dial == nil {
do.dial = do.dialer.Dial
}
netConn, err := do.dial(network, address)
if err != nil {
return nil, err
}
if do.useTLS {
var tlsConfig *tls.Config
if do.tlsConfig == nil {
tlsConfig = &tls.Config{InsecureSkipVerify: do.skipVerify}
} else {
tlsConfig = cloneTLSConfig(do.tlsConfig)
}
if tlsConfig.ServerName == "" {
host, _, err := net.SplitHostPort(address)
if err != nil {
netConn.Close()
return nil, err
}
tlsConfig.ServerName = host
}
tlsConn := tls.Client(netConn, tlsConfig)
if err := tlsConn.Handshake(); err != nil {
netConn.Close()
return nil, err
}
netConn = tlsConn
}
c := &conn{
conn: netConn,
bw: bufio.NewWriter(netConn),
br: bufio.NewReader(netConn),
readTimeout: do.readTimeout,
writeTimeout: do.writeTimeout,
}
if do.password != "" {
if _, err := c.Do("AUTH", do.password); err != nil {
netConn.Close()
return nil, err
}
}
if do.db != 0 {
if _, err := c.Do("SELECT", do.db); err != nil {
netConn.Close()
return nil, err
}
}
return c, nil
}
var pathDBRegexp = regexp.MustCompile(`/(\d*)\z`)
// DialURL connects to a Redis server at the given URL using the Redis
// URI scheme. URLs should follow the draft IANA specification for the
// scheme (https://www.iana.org/assignments/uri-schemes/prov/redis).
func DialURL(rawurl string, options ...DialOption) (Conn, error) {
u, err := url.Parse(rawurl)
if err != nil {
return nil, err
}
if u.Scheme != "redis" && u.Scheme != "rediss" {
return nil, fmt.Errorf("invalid redis URL scheme: %s", u.Scheme)
}
// As per the IANA draft spec, the host defaults to localhost and
// the port defaults to 6379.
host, port, err := net.SplitHostPort(u.Host)
if err != nil {
// assume port is missing
host = u.Host
port = "6379"
}
if host == "" {
host = "localhost"
}
address := net.JoinHostPort(host, port)
if u.User != nil {
password, isSet := u.User.Password()
if isSet {
options = append(options, DialPassword(password))
}
}
match := pathDBRegexp.FindStringSubmatch(u.Path)
if len(match) == 2 {
db := 0
if len(match[1]) > 0 {
db, err = strconv.Atoi(match[1])
if err != nil {
return nil, fmt.Errorf("invalid database: %s", u.Path[1:])
}
}
if db != 0 {
options = append(options, DialDatabase(db))
}
} else if u.Path != "" {
return nil, fmt.Errorf("invalid database: %s", u.Path[1:])
}
options = append(options, DialUseTLS(u.Scheme == "rediss"))
return Dial("tcp", address, options...)
}
// NewConn returns a new Redigo connection for the given net connection.
func NewConn(netConn net.Conn, readTimeout, writeTimeout time.Duration) Conn {
return &conn{
conn: netConn,
bw: bufio.NewWriter(netConn),
br: bufio.NewReader(netConn),
readTimeout: readTimeout,
writeTimeout: writeTimeout,
}
}
func (c *conn) Close() error {
c.mu.Lock()
err := c.err
if c.err == nil {
c.err = errors.New("redigo: closed")
err = c.conn.Close()
}
c.mu.Unlock()
return err
}
func (c *conn) fatal(err error) error {
c.mu.Lock()
if c.err == nil {
c.err = err
// Close connection to force errors on subsequent calls and to unblock
// other reader or writer.
c.conn.Close()
}
c.mu.Unlock()
return err
}
func (c *conn) Err() error {
c.mu.Lock()
err := c.err
c.mu.Unlock()
return err
}
func (c *conn) writeLen(prefix byte, n int) error {
c.lenScratch[len(c.lenScratch)-1] = '\n'
c.lenScratch[len(c.lenScratch)-2] = '\r'
i := len(c.lenScratch) - 3
for {
c.lenScratch[i] = byte('0' + n%10)
i -= 1
n = n / 10
if n == 0 {
break
}
}
c.lenScratch[i] = prefix
_, err := c.bw.Write(c.lenScratch[i:])
return err
}
func (c *conn) writeString(s string) error {
c.writeLen('$', len(s))
c.bw.WriteString(s)
_, err := c.bw.WriteString("\r\n")
return err
}
func (c *conn) writeBytes(p []byte) error {
c.writeLen('$', len(p))
c.bw.Write(p)
_, err := c.bw.WriteString("\r\n")
return err
}
func (c *conn) writeInt64(n int64) error {
return c.writeBytes(strconv.AppendInt(c.numScratch[:0], n, 10))
}
func (c *conn) writeFloat64(n float64) error {
return c.writeBytes(strconv.AppendFloat(c.numScratch[:0], n, 'g', -1, 64))
}
func (c *conn) writeCommand(cmd string, args []interface{}) error {
c.writeLen('*', 1+len(args))
if err := c.writeString(cmd); err != nil {
return err
}
for _, arg := range args {
if err := c.writeArg(arg, true); err != nil {
return err
}
}
return nil
}
func (c *conn) writeArg(arg interface{}, argumentTypeOK bool) (err error) {
switch arg := arg.(type) {
case string:
return c.writeString(arg)
case []byte:
return c.writeBytes(arg)
case int:
return c.writeInt64(int64(arg))
case int64:
return c.writeInt64(arg)
case float64:
return c.writeFloat64(arg)
case bool:
if arg {
return c.writeString("1")
} else {
return c.writeString("0")
}
case nil:
return c.writeString("")
case Argument:
if argumentTypeOK {
return c.writeArg(arg.RedisArg(), false)
}
// See comment in default clause below.
var buf bytes.Buffer
fmt.Fprint(&buf, arg)
return c.writeBytes(buf.Bytes())
default:
// This default clause is intended to handle builtin numeric types.
// The function should return an error for other types, but this is not
// done for compatibility with previous versions of the package.
var buf bytes.Buffer
fmt.Fprint(&buf, arg)
return c.writeBytes(buf.Bytes())
}
}
type protocolError string
func (pe protocolError) Error() string {
return fmt.Sprintf("redigo: %s (possible server error or unsupported concurrent read by application)", string(pe))
}
func (c *conn) readLine() ([]byte, error) {
p, err := c.br.ReadSlice('\n')
if err == bufio.ErrBufferFull {
return nil, protocolError("long response line")
}
if err != nil {
return nil, err
}
i := len(p) - 2
if i < 0 || p[i] != '\r' {
return nil, protocolError("bad response line terminator")
}
return p[:i], nil
}
// parseLen parses bulk string and array lengths.
func parseLen(p []byte) (int, error) {
if len(p) == 0 {
return -1, protocolError("malformed length")
}
if p[0] == '-' && len(p) == 2 && p[1] == '1' {
// handle $-1 and $-1 null replies.
return -1, nil
}
var n int
for _, b := range p {
n *= 10
if b < '0' || b > '9' {
return -1, protocolError("illegal bytes in length")
}
n += int(b - '0')
}
return n, nil
}
// parseInt parses an integer reply.
func parseInt(p []byte) (interface{}, error) {
if len(p) == 0 {
return 0, protocolError("malformed integer")
}
var negate bool
if p[0] == '-' {
negate = true
p = p[1:]
if len(p) == 0 {
return 0, protocolError("malformed integer")
}
}
var n int64
for _, b := range p {
n *= 10
if b < '0' || b > '9' {
return 0, protocolError("illegal bytes in length")
}
n += int64(b - '0')
}
if negate {
n = -n
}
return n, nil
}
var (
okReply interface{} = "OK"
pongReply interface{} = "PONG"
)
func (c *conn) readReply() (interface{}, error) {
line, err := c.readLine()
if err != nil {
return nil, err
}
if len(line) == 0 {
return nil, protocolError("short response line")
}
switch line[0] {
case '+':
switch {
case len(line) == 3 && line[1] == 'O' && line[2] == 'K':
// Avoid allocation for frequent "+OK" response.
return okReply, nil
case len(line) == 5 && line[1] == 'P' && line[2] == 'O' && line[3] == 'N' && line[4] == 'G':
// Avoid allocation in PING command benchmarks :)
return pongReply, nil
default:
return string(line[1:]), nil
}
case '-':
return Error(string(line[1:])), nil
case ':':
return parseInt(line[1:])
case '$':
n, err := parseLen(line[1:])
if n < 0 || err != nil {
return nil, err
}
p := make([]byte, n)
_, err = io.ReadFull(c.br, p)
if err != nil {
return nil, err
}
if line, err := c.readLine(); err != nil {
return nil, err
} else if len(line) != 0 {
return nil, protocolError("bad bulk string format")
}
return p, nil
case '*':
n, err := parseLen(line[1:])
if n < 0 || err != nil {
return nil, err
}
r := make([]interface{}, n)
for i := range r {
r[i], err = c.readReply()
if err != nil {
return nil, err
}
}
return r, nil
}
return nil, protocolError("unexpected response line")
}
func (c *conn) Send(cmd string, args ...interface{}) error {
c.mu.Lock()
c.pending += 1
c.mu.Unlock()
if c.writeTimeout != 0 {
c.conn.SetWriteDeadline(time.Now().Add(c.writeTimeout))
}
if err := c.writeCommand(cmd, args); err != nil {
return c.fatal(err)
}
return nil
}
func (c *conn) Flush() error {
if c.writeTimeout != 0 {
c.conn.SetWriteDeadline(time.Now().Add(c.writeTimeout))
}
if err := c.bw.Flush(); err != nil {
return c.fatal(err)
}
return nil
}
func (c *conn) Receive() (interface{}, error) {
return c.ReceiveWithTimeout(c.readTimeout)
}
func (c *conn) ReceiveWithTimeout(timeout time.Duration) (reply interface{}, err error) {
var deadline time.Time
if timeout != 0 {
deadline = time.Now().Add(timeout)
}
c.conn.SetReadDeadline(deadline)
if reply, err = c.readReply(); err != nil {
return nil, c.fatal(err)
}
// When using pub/sub, the number of receives can be greater than the
// number of sends. To enable normal use of the connection after
// unsubscribing from all channels, we do not decrement pending to a
// negative value.
//
// The pending field is decremented after the reply is read to handle the
// case where Receive is called before Send.
c.mu.Lock()
if c.pending > 0 {
c.pending -= 1
}
c.mu.Unlock()
if err, ok := reply.(Error); ok {
return nil, err
}
return
}
func (c *conn) Do(cmd string, args ...interface{}) (interface{}, error) {
return c.DoWithTimeout(c.readTimeout, cmd, args...)
}
func (c *conn) DoWithTimeout(readTimeout time.Duration, cmd string, args ...interface{}) (interface{}, error) {
c.mu.Lock()
pending := c.pending
c.pending = 0
c.mu.Unlock()
if cmd == "" && pending == 0 {
return nil, nil
}
if c.writeTimeout != 0 {
c.conn.SetWriteDeadline(time.Now().Add(c.writeTimeout))
}
if cmd != "" {
if err := c.writeCommand(cmd, args); err != nil {
return nil, c.fatal(err)
}
}
if err := c.bw.Flush(); err != nil {
return nil, c.fatal(err)
}
var deadline time.Time
if readTimeout != 0 {
deadline = time.Now().Add(readTimeout)
}
c.conn.SetReadDeadline(deadline)
if cmd == "" {
reply := make([]interface{}, pending)
for i := range reply {
r, e := c.readReply()
if e != nil {
return nil, c.fatal(e)
}
reply[i] = r
}
return reply, nil
}
var err error
var reply interface{}
for i := 0; i <= pending; i++ {
var e error
if reply, e = c.readReply(); e != nil {
return nil, c.fatal(e)
}
if e, ok := reply.(Error); ok && err == nil {
err = e
}
}
return reply, err
}

867
vendor/github.com/garyburd/redigo/redis/conn_test.go generated vendored
View File

@ -1,867 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis_test
import (
"bytes"
"crypto/tls"
"crypto/x509"
"fmt"
"io"
"math"
"net"
"os"
"reflect"
"strings"
"testing"
"time"
"github.com/garyburd/redigo/redis"
)
type testConn struct {
io.Reader
io.Writer
readDeadline time.Time
writeDeadline time.Time
}
func (*testConn) Close() error { return nil }
func (*testConn) LocalAddr() net.Addr { return nil }
func (*testConn) RemoteAddr() net.Addr { return nil }
func (c *testConn) SetDeadline(t time.Time) error { c.readDeadline = t; c.writeDeadline = t; return nil }
func (c *testConn) SetReadDeadline(t time.Time) error { c.readDeadline = t; return nil }
func (c *testConn) SetWriteDeadline(t time.Time) error { c.writeDeadline = t; return nil }
func dialTestConn(r string, w io.Writer) redis.DialOption {
return redis.DialNetDial(func(network, addr string) (net.Conn, error) {
return &testConn{Reader: strings.NewReader(r), Writer: w}, nil
})
}
type tlsTestConn struct {
net.Conn
done chan struct{}
}
func (c *tlsTestConn) Close() error {
c.Conn.Close()
<-c.done
return nil
}
func dialTestConnTLS(r string, w io.Writer) redis.DialOption {
return redis.DialNetDial(func(network, addr string) (net.Conn, error) {
client, server := net.Pipe()
tlsServer := tls.Server(server, &serverTLSConfig)
go io.Copy(tlsServer, strings.NewReader(r))
done := make(chan struct{})
go func() {
io.Copy(w, tlsServer)
close(done)
}()
return &tlsTestConn{Conn: client, done: done}, nil
})
}
type durationArg struct {
time.Duration
}
func (t durationArg) RedisArg() interface{} {
return t.Seconds()
}
type recursiveArg int
func (v recursiveArg) RedisArg() interface{} { return v }
var writeTests = []struct {
args []interface{}
expected string
}{
{
[]interface{}{"SET", "key", "value"},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$5\r\nvalue\r\n",
},
{
[]interface{}{"SET", "key", "value"},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$5\r\nvalue\r\n",
},
{
[]interface{}{"SET", "key", byte(100)},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$3\r\n100\r\n",
},
{
[]interface{}{"SET", "key", 100},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$3\r\n100\r\n",
},
{
[]interface{}{"SET", "key", int64(math.MinInt64)},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$20\r\n-9223372036854775808\r\n",
},
{
[]interface{}{"SET", "key", float64(1349673917.939762)},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$21\r\n1.349673917939762e+09\r\n",
},
{
[]interface{}{"SET", "key", ""},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$0\r\n\r\n",
},
{
[]interface{}{"SET", "key", nil},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$0\r\n\r\n",
},
{
[]interface{}{"SET", "key", durationArg{time.Minute}},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$2\r\n60\r\n",
},
{
[]interface{}{"SET", "key", recursiveArg(123)},
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$3\r\n123\r\n",
},
{
[]interface{}{"ECHO", true, false},
"*3\r\n$4\r\nECHO\r\n$1\r\n1\r\n$1\r\n0\r\n",
},
}
func TestWrite(t *testing.T) {
for _, tt := range writeTests {
var buf bytes.Buffer
c, _ := redis.Dial("", "", dialTestConn("", &buf))
err := c.Send(tt.args[0].(string), tt.args[1:]...)
if err != nil {
t.Errorf("Send(%v) returned error %v", tt.args, err)
continue
}
c.Flush()
actual := buf.String()
if actual != tt.expected {
t.Errorf("Send(%v) = %q, want %q", tt.args, actual, tt.expected)
}
}
}
var errorSentinel = &struct{}{}
var readTests = []struct {
reply string
expected interface{}
}{
{
"+OK\r\n",
"OK",
},
{
"+PONG\r\n",
"PONG",
},
{
"@OK\r\n",
errorSentinel,
},
{
"$6\r\nfoobar\r\n",
[]byte("foobar"),
},
{
"$-1\r\n",
nil,
},
{
":1\r\n",
int64(1),
},
{
":-2\r\n",
int64(-2),
},
{
"*0\r\n",
[]interface{}{},
},
{
"*-1\r\n",
nil,
},
{
"*4\r\n$3\r\nfoo\r\n$3\r\nbar\r\n$5\r\nHello\r\n$5\r\nWorld\r\n",
[]interface{}{[]byte("foo"), []byte("bar"), []byte("Hello"), []byte("World")},
},
{
"*3\r\n$3\r\nfoo\r\n$-1\r\n$3\r\nbar\r\n",
[]interface{}{[]byte("foo"), nil, []byte("bar")},
},
{
// "x" is not a valid length
"$x\r\nfoobar\r\n",
errorSentinel,
},
{
// -2 is not a valid length
"$-2\r\n",
errorSentinel,
},
{
// "x" is not a valid integer
":x\r\n",
errorSentinel,
},
{
// missing \r\n following value
"$6\r\nfoobar",
errorSentinel,
},
{
// short value
"$6\r\nxx",
errorSentinel,
},
{
// long value
"$6\r\nfoobarx\r\n",
errorSentinel,
},
}
func TestRead(t *testing.T) {
for _, tt := range readTests {
c, _ := redis.Dial("", "", dialTestConn(tt.reply, nil))
actual, err := c.Receive()
if tt.expected == errorSentinel {
if err == nil {
t.Errorf("Receive(%q) did not return expected error", tt.reply)
}
} else {
if err != nil {
t.Errorf("Receive(%q) returned error %v", tt.reply, err)
continue
}
if !reflect.DeepEqual(actual, tt.expected) {
t.Errorf("Receive(%q) = %v, want %v", tt.reply, actual, tt.expected)
}
}
}
}
var testCommands = []struct {
args []interface{}
expected interface{}
}{
{
[]interface{}{"PING"},
"PONG",
},
{
[]interface{}{"SET", "foo", "bar"},
"OK",
},
{
[]interface{}{"GET", "foo"},
[]byte("bar"),
},
{
[]interface{}{"GET", "nokey"},
nil,
},
{
[]interface{}{"MGET", "nokey", "foo"},
[]interface{}{nil, []byte("bar")},
},
{
[]interface{}{"INCR", "mycounter"},
int64(1),
},
{
[]interface{}{"LPUSH", "mylist", "foo"},
int64(1),
},
{
[]interface{}{"LPUSH", "mylist", "bar"},
int64(2),
},
{
[]interface{}{"LRANGE", "mylist", 0, -1},
[]interface{}{[]byte("bar"), []byte("foo")},
},
{
[]interface{}{"MULTI"},
"OK",
},
{
[]interface{}{"LRANGE", "mylist", 0, -1},
"QUEUED",
},
{
[]interface{}{"PING"},
"QUEUED",
},
{
[]interface{}{"EXEC"},
[]interface{}{
[]interface{}{[]byte("bar"), []byte("foo")},
"PONG",
},
},
}
func TestDoCommands(t *testing.T) {
c, err := redis.DialDefaultServer()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
for _, cmd := range testCommands {
actual, err := c.Do(cmd.args[0].(string), cmd.args[1:]...)
if err != nil {
t.Errorf("Do(%v) returned error %v", cmd.args, err)
continue
}
if !reflect.DeepEqual(actual, cmd.expected) {
t.Errorf("Do(%v) = %v, want %v", cmd.args, actual, cmd.expected)
}
}
}
func TestPipelineCommands(t *testing.T) {
c, err := redis.DialDefaultServer()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
for _, cmd := range testCommands {
if err := c.Send(cmd.args[0].(string), cmd.args[1:]...); err != nil {
t.Fatalf("Send(%v) returned error %v", cmd.args, err)
}
}
if err := c.Flush(); err != nil {
t.Errorf("Flush() returned error %v", err)
}
for _, cmd := range testCommands {
actual, err := c.Receive()
if err != nil {
t.Fatalf("Receive(%v) returned error %v", cmd.args, err)
}
if !reflect.DeepEqual(actual, cmd.expected) {
t.Errorf("Receive(%v) = %v, want %v", cmd.args, actual, cmd.expected)
}
}
}
func TestBlankCommmand(t *testing.T) {
c, err := redis.DialDefaultServer()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
for _, cmd := range testCommands {
if err := c.Send(cmd.args[0].(string), cmd.args[1:]...); err != nil {
t.Fatalf("Send(%v) returned error %v", cmd.args, err)
}
}
reply, err := redis.Values(c.Do(""))
if err != nil {
t.Fatalf("Do() returned error %v", err)
}
if len(reply) != len(testCommands) {
t.Fatalf("len(reply)=%d, want %d", len(reply), len(testCommands))
}
for i, cmd := range testCommands {
actual := reply[i]
if !reflect.DeepEqual(actual, cmd.expected) {
t.Errorf("Receive(%v) = %v, want %v", cmd.args, actual, cmd.expected)
}
}
}
func TestRecvBeforeSend(t *testing.T) {
c, err := redis.DialDefaultServer()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
done := make(chan struct{})
go func() {
c.Receive()
close(done)
}()
time.Sleep(time.Millisecond)
c.Send("PING")
c.Flush()
<-done
_, err = c.Do("")
if err != nil {
t.Fatalf("error=%v", err)
}
}
func TestError(t *testing.T) {
c, err := redis.DialDefaultServer()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
c.Do("SET", "key", "val")
_, err = c.Do("HSET", "key", "fld", "val")
if err == nil {
t.Errorf("Expected err for HSET on string key.")
}
if c.Err() != nil {
t.Errorf("Conn has Err()=%v, expect nil", c.Err())
}
_, err = c.Do("SET", "key", "val")
if err != nil {
t.Errorf("Do(SET, key, val) returned error %v, expected nil.", err)
}
}
func TestReadTimeout(t *testing.T) {
l, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatalf("net.Listen returned %v", err)
}
defer l.Close()
go func() {
for {
c, err := l.Accept()
if err != nil {
return
}
go func() {
time.Sleep(time.Second)
c.Write([]byte("+OK\r\n"))
c.Close()
}()
}
}()
// Do
c1, err := redis.Dial(l.Addr().Network(), l.Addr().String(), redis.DialReadTimeout(time.Millisecond))
if err != nil {
t.Fatalf("redis.Dial returned %v", err)
}
defer c1.Close()
_, err = c1.Do("PING")
if err == nil {
t.Fatalf("c1.Do() returned nil, expect error")
}
if c1.Err() == nil {
t.Fatalf("c1.Err() = nil, expect error")
}
// Send/Flush/Receive
c2, err := redis.Dial(l.Addr().Network(), l.Addr().String(), redis.DialReadTimeout(time.Millisecond))
if err != nil {
t.Fatalf("redis.Dial returned %v", err)
}
defer c2.Close()
c2.Send("PING")
c2.Flush()
_, err = c2.Receive()
if err == nil {
t.Fatalf("c2.Receive() returned nil, expect error")
}
if c2.Err() == nil {
t.Fatalf("c2.Err() = nil, expect error")
}
}
var dialErrors = []struct {
rawurl string
expectedError string
}{
{
"localhost",
"invalid redis URL scheme",
},
// The error message for invalid hosts is different in different
// versions of Go, so just check that there is an error message.
{
"redis://weird url",
"",
},
{
"redis://foo:bar:baz",
"",
},
{
"http://www.google.com",
"invalid redis URL scheme: http",
},
{
"redis://localhost:6379/abc123",
"invalid database: abc123",
},
}
func TestDialURLErrors(t *testing.T) {
for _, d := range dialErrors {
_, err := redis.DialURL(d.rawurl)
if err == nil || !strings.Contains(err.Error(), d.expectedError) {
t.Errorf("DialURL did not return expected error (expected %v to contain %s)", err, d.expectedError)
}
}
}
func TestDialURLPort(t *testing.T) {
checkPort := func(network, address string) (net.Conn, error) {
if address != "localhost:6379" {
t.Errorf("DialURL did not set port to 6379 by default (got %v)", address)
}
return nil, nil
}
_, err := redis.DialURL("redis://localhost", redis.DialNetDial(checkPort))
if err != nil {
t.Error("dial error:", err)
}
}
func TestDialURLHost(t *testing.T) {
checkHost := func(network, address string) (net.Conn, error) {
if address != "localhost:6379" {
t.Errorf("DialURL did not set host to localhost by default (got %v)", address)
}
return nil, nil
}
_, err := redis.DialURL("redis://:6379", redis.DialNetDial(checkHost))
if err != nil {
t.Error("dial error:", err)
}
}
var dialURLTests = []struct {
description string
url string
r string
w string
}{
{"password", "redis://x:abc123@localhost", "+OK\r\n", "*2\r\n$4\r\nAUTH\r\n$6\r\nabc123\r\n"},
{"database 3", "redis://localhost/3", "+OK\r\n", "*2\r\n$6\r\nSELECT\r\n$1\r\n3\r\n"},
{"database 99", "redis://localhost/99", "+OK\r\n", "*2\r\n$6\r\nSELECT\r\n$2\r\n99\r\n"},
{"no database", "redis://localhost/", "+OK\r\n", ""},
}
func TestDialURL(t *testing.T) {
for _, tt := range dialURLTests {
var buf bytes.Buffer
// UseTLS should be ignored in all of these tests.
_, err := redis.DialURL(tt.url, dialTestConn(tt.r, &buf), redis.DialUseTLS(true))
if err != nil {
t.Errorf("%s dial error: %v", tt.description, err)
continue
}
if w := buf.String(); w != tt.w {
t.Errorf("%s commands = %q, want %q", tt.description, w, tt.w)
}
}
}
func checkPingPong(t *testing.T, buf *bytes.Buffer, c redis.Conn) {
resp, err := c.Do("PING")
if err != nil {
t.Fatal("ping error:", err)
}
// Close connection to ensure that writes to buf are complete.
c.Close()
expected := "*1\r\n$4\r\nPING\r\n"
actual := buf.String()
if actual != expected {
t.Errorf("commands = %q, want %q", actual, expected)
}
if resp != "PONG" {
t.Errorf("resp = %v, want %v", resp, "PONG")
}
}
const pingResponse = "+PONG\r\n"
func TestDialURLTLS(t *testing.T) {
var buf bytes.Buffer
c, err := redis.DialURL("rediss://example.com/",
redis.DialTLSConfig(&clientTLSConfig),
dialTestConnTLS(pingResponse, &buf))
if err != nil {
t.Fatal("dial error:", err)
}
checkPingPong(t, &buf, c)
}
func TestDialUseTLS(t *testing.T) {
var buf bytes.Buffer
c, err := redis.Dial("tcp", "example.com:6379",
redis.DialTLSConfig(&clientTLSConfig),
dialTestConnTLS(pingResponse, &buf),
redis.DialUseTLS(true))
if err != nil {
t.Fatal("dial error:", err)
}
checkPingPong(t, &buf, c)
}
func TestDialTLSSKipVerify(t *testing.T) {
var buf bytes.Buffer
c, err := redis.Dial("tcp", "example.com:6379",
dialTestConnTLS(pingResponse, &buf),
redis.DialTLSSkipVerify(true),
redis.DialUseTLS(true))
if err != nil {
t.Fatal("dial error:", err)
}
checkPingPong(t, &buf, c)
}
// Connect to local instance of Redis running on the default port.
func ExampleDial() {
c, err := redis.Dial("tcp", ":6379")
if err != nil {
// handle error
}
defer c.Close()
}
// Connect to remote instance of Redis using a URL.
func ExampleDialURL() {
c, err := redis.DialURL(os.Getenv("REDIS_URL"))
if err != nil {
// handle connection error
}
defer c.Close()
}
// TextExecError tests handling of errors in a transaction. See
// http://redis.io/topics/transactions for information on how Redis handles
// errors in a transaction.
func TestExecError(t *testing.T) {
c, err := redis.DialDefaultServer()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
// Execute commands that fail before EXEC is called.
c.Do("DEL", "k0")
c.Do("ZADD", "k0", 0, 0)
c.Send("MULTI")
c.Send("NOTACOMMAND", "k0", 0, 0)
c.Send("ZINCRBY", "k0", 0, 0)
v, err := c.Do("EXEC")
if err == nil {
t.Fatalf("EXEC returned values %v, expected error", v)
}
// Execute commands that fail after EXEC is called. The first command
// returns an error.
c.Do("DEL", "k1")
c.Do("ZADD", "k1", 0, 0)
c.Send("MULTI")
c.Send("HSET", "k1", 0, 0)
c.Send("ZINCRBY", "k1", 0, 0)
v, err = c.Do("EXEC")
if err != nil {
t.Fatalf("EXEC returned error %v", err)
}
vs, err := redis.Values(v, nil)
if err != nil {
t.Fatalf("Values(v) returned error %v", err)
}
if len(vs) != 2 {
t.Fatalf("len(vs) == %d, want 2", len(vs))
}
if _, ok := vs[0].(error); !ok {
t.Fatalf("first result is type %T, expected error", vs[0])
}
if _, ok := vs[1].([]byte); !ok {
t.Fatalf("second result is type %T, expected []byte", vs[1])
}
// Execute commands that fail after EXEC is called. The second command
// returns an error.
c.Do("ZADD", "k2", 0, 0)
c.Send("MULTI")
c.Send("ZINCRBY", "k2", 0, 0)
c.Send("HSET", "k2", 0, 0)
v, err = c.Do("EXEC")
if err != nil {
t.Fatalf("EXEC returned error %v", err)
}
vs, err = redis.Values(v, nil)
if err != nil {
t.Fatalf("Values(v) returned error %v", err)
}
if len(vs) != 2 {
t.Fatalf("len(vs) == %d, want 2", len(vs))
}
if _, ok := vs[0].([]byte); !ok {
t.Fatalf("first result is type %T, expected []byte", vs[0])
}
if _, ok := vs[1].(error); !ok {
t.Fatalf("second result is type %T, expected error", vs[2])
}
}
func BenchmarkDoEmpty(b *testing.B) {
b.StopTimer()
c, err := redis.DialDefaultServer()
if err != nil {
b.Fatal(err)
}
defer c.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
if _, err := c.Do(""); err != nil {
b.Fatal(err)
}
}
}
func BenchmarkDoPing(b *testing.B) {
b.StopTimer()
c, err := redis.DialDefaultServer()
if err != nil {
b.Fatal(err)
}
defer c.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
if _, err := c.Do("PING"); err != nil {
b.Fatal(err)
}
}
}
var clientTLSConfig, serverTLSConfig tls.Config
func init() {
// The certificate and key for testing TLS dial options was created
// using the command
//
// go run GOROOT/src/crypto/tls/generate_cert.go \
// --rsa-bits 1024 \
// --host 127.0.0.1,::1,example.com --ca \
// --start-date "Jan 1 00:00:00 1970" \
// --duration=1000000h
//
// where GOROOT is the value of GOROOT reported by go env.
localhostCert := []byte(`
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`)
localhostKey := []byte(`
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`)
cert, err := tls.X509KeyPair(localhostCert, localhostKey)
if err != nil {
panic(fmt.Sprintf("error creating key pair: %v", err))
}
serverTLSConfig.Certificates = []tls.Certificate{cert}
certificate, err := x509.ParseCertificate(serverTLSConfig.Certificates[0].Certificate[0])
if err != nil {
panic(fmt.Sprintf("error parsing x509 certificate: %v", err))
}
clientTLSConfig.RootCAs = x509.NewCertPool()
clientTLSConfig.RootCAs.AddCert(certificate)
}
func TestWithTimeout(t *testing.T) {
for _, recv := range []bool{true, false} {
for _, defaultTimout := range []time.Duration{0, time.Minute} {
var buf bytes.Buffer
nc := &testConn{Reader: strings.NewReader("+OK\r\n+OK\r\n+OK\r\n+OK\r\n+OK\r\n+OK\r\n+OK\r\n+OK\r\n+OK\r\n+OK\r\n"), Writer: &buf}
c, _ := redis.Dial("", "", redis.DialReadTimeout(defaultTimout), redis.DialNetDial(func(network, addr string) (net.Conn, error) { return nc, nil }))
for i := 0; i < 4; i++ {
var minDeadline, maxDeadline time.Time
// Alternate between default and specified timeout.
if i%2 == 0 {
if defaultTimout != 0 {
minDeadline = time.Now().Add(defaultTimout)
}
if recv {
c.Receive()
} else {
c.Do("PING")
}
if defaultTimout != 0 {
maxDeadline = time.Now().Add(defaultTimout)
}
} else {
timeout := 10 * time.Minute
minDeadline = time.Now().Add(timeout)
if recv {
redis.ReceiveWithTimeout(c, timeout)
} else {
redis.DoWithTimeout(c, timeout, "PING")
}
maxDeadline = time.Now().Add(timeout)
}
// Expect set deadline in expected range.
if nc.readDeadline.Before(minDeadline) || nc.readDeadline.After(maxDeadline) {
t.Errorf("recv %v, %d: do deadline error: %v, %v, %v", recv, i, minDeadline, nc.readDeadline, maxDeadline)
}
}
}
}
}

177
vendor/github.com/garyburd/redigo/redis/doc.go generated vendored
View File

@ -1,177 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis is a client for the Redis database.
//
// The Redigo FAQ (https://github.com/garyburd/redigo/wiki/FAQ) contains more
// documentation about this package.
//
// Connections
//
// The Conn interface is the primary interface for working with Redis.
// Applications create connections by calling the Dial, DialWithTimeout or
// NewConn functions. In the future, functions will be added for creating
// sharded and other types of connections.
//
// The application must call the connection Close method when the application
// is done with the connection.
//
// Executing Commands
//
// The Conn interface has a generic method for executing Redis commands:
//
// Do(commandName string, args ...interface{}) (reply interface{}, err error)
//
// The Redis command reference (http://redis.io/commands) lists the available
// commands. An example of using the Redis APPEND command is:
//
// n, err := conn.Do("APPEND", "key", "value")
//
// The Do method converts command arguments to bulk strings for transmission
// to the server as follows:
//
// Go Type Conversion
// []byte Sent as is
// string Sent as is
// int, int64 strconv.FormatInt(v)
// float64 strconv.FormatFloat(v, 'g', -1, 64)
// bool true -> "1", false -> "0"
// nil ""
// all other types fmt.Fprint(w, v)
//
// Redis command reply types are represented using the following Go types:
//
// Redis type Go type
// error redis.Error
// integer int64
// simple string string
// bulk string []byte or nil if value not present.
// array []interface{} or nil if value not present.
//
// Use type assertions or the reply helper functions to convert from
// interface{} to the specific Go type for the command result.
//
// Pipelining
//
// Connections support pipelining using the Send, Flush and Receive methods.
//
// Send(commandName string, args ...interface{}) error
// Flush() error
// Receive() (reply interface{}, err error)
//
// Send writes the command to the connection's output buffer. Flush flushes the
// connection's output buffer to the server. Receive reads a single reply from
// the server. The following example shows a simple pipeline.
//
// c.Send("SET", "foo", "bar")
// c.Send("GET", "foo")
// c.Flush()
// c.Receive() // reply from SET
// v, err = c.Receive() // reply from GET
//
// The Do method combines the functionality of the Send, Flush and Receive
// methods. The Do method starts by writing the command and flushing the output
// buffer. Next, the Do method receives all pending replies including the reply
// for the command just sent by Do. If any of the received replies is an error,
// then Do returns the error. If there are no errors, then Do returns the last
// reply. If the command argument to the Do method is "", then the Do method
// will flush the output buffer and receive pending replies without sending a
// command.
//
// Use the Send and Do methods to implement pipelined transactions.
//
// c.Send("MULTI")
// c.Send("INCR", "foo")
// c.Send("INCR", "bar")
// r, err := c.Do("EXEC")
// fmt.Println(r) // prints [1, 1]
//
// Concurrency
//
// Connections support one concurrent caller to the Receive method and one
// concurrent caller to the Send and Flush methods. No other concurrency is
// supported including concurrent calls to the Do method.
//
// For full concurrent access to Redis, use the thread-safe Pool to get, use
// and release a connection from within a goroutine. Connections returned from
// a Pool have the concurrency restrictions described in the previous
// paragraph.
//
// Publish and Subscribe
//
// Use the Send, Flush and Receive methods to implement Pub/Sub subscribers.
//
// c.Send("SUBSCRIBE", "example")
// c.Flush()
// for {
// reply, err := c.Receive()
// if err != nil {
// return err
// }
// // process pushed message
// }
//
// The PubSubConn type wraps a Conn with convenience methods for implementing
// subscribers. The Subscribe, PSubscribe, Unsubscribe and PUnsubscribe methods
// send and flush a subscription management command. The receive method
// converts a pushed message to convenient types for use in a type switch.
//
// psc := redis.PubSubConn{Conn: c}
// psc.Subscribe("example")
// for {
// switch v := psc.Receive().(type) {
// case redis.Message:
// fmt.Printf("%s: message: %s\n", v.Channel, v.Data)
// case redis.Subscription:
// fmt.Printf("%s: %s %d\n", v.Channel, v.Kind, v.Count)
// case error:
// return v
// }
// }
//
// Reply Helpers
//
// The Bool, Int, Bytes, String, Strings and Values functions convert a reply
// to a value of a specific type. To allow convenient wrapping of calls to the
// connection Do and Receive methods, the functions take a second argument of
// type error. If the error is non-nil, then the helper function returns the
// error. If the error is nil, the function converts the reply to the specified
// type:
//
// exists, err := redis.Bool(c.Do("EXISTS", "foo"))
// if err != nil {
// // handle error return from c.Do or type conversion error.
// }
//
// The Scan function converts elements of a array reply to Go types:
//
// var value1 int
// var value2 string
// reply, err := redis.Values(c.Do("MGET", "key1", "key2"))
// if err != nil {
// // handle error
// }
// if _, err := redis.Scan(reply, &value1, &value2); err != nil {
// // handle error
// }
//
// Errors
//
// Connection methods return error replies from the server as type redis.Error.
//
// Call the connection Err() method to determine if the connection encountered
// non-recoverable error such as a network error or protocol parsing error. If
// Err() returns a non-nil value, then the connection is not usable and should
// be closed.
package redis // import "github.com/garyburd/redigo/redis"

27
vendor/github.com/garyburd/redigo/redis/go16.go generated vendored
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@ -1,27 +0,0 @@
// +build !go1.7
package redis
import "crypto/tls"
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
return &tls.Config{
Rand: cfg.Rand,
Time: cfg.Time,
Certificates: cfg.Certificates,
NameToCertificate: cfg.NameToCertificate,
GetCertificate: cfg.GetCertificate,
RootCAs: cfg.RootCAs,
NextProtos: cfg.NextProtos,
ServerName: cfg.ServerName,
ClientAuth: cfg.ClientAuth,
ClientCAs: cfg.ClientCAs,
InsecureSkipVerify: cfg.InsecureSkipVerify,
CipherSuites: cfg.CipherSuites,
PreferServerCipherSuites: cfg.PreferServerCipherSuites,
ClientSessionCache: cfg.ClientSessionCache,
MinVersion: cfg.MinVersion,
MaxVersion: cfg.MaxVersion,
CurvePreferences: cfg.CurvePreferences,
}
}

29
vendor/github.com/garyburd/redigo/redis/go17.go generated vendored
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@ -1,29 +0,0 @@
// +build go1.7,!go1.8
package redis
import "crypto/tls"
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
return &tls.Config{
Rand: cfg.Rand,
Time: cfg.Time,
Certificates: cfg.Certificates,
NameToCertificate: cfg.NameToCertificate,
GetCertificate: cfg.GetCertificate,
RootCAs: cfg.RootCAs,
NextProtos: cfg.NextProtos,
ServerName: cfg.ServerName,
ClientAuth: cfg.ClientAuth,
ClientCAs: cfg.ClientCAs,
InsecureSkipVerify: cfg.InsecureSkipVerify,
CipherSuites: cfg.CipherSuites,
PreferServerCipherSuites: cfg.PreferServerCipherSuites,
ClientSessionCache: cfg.ClientSessionCache,
MinVersion: cfg.MinVersion,
MaxVersion: cfg.MaxVersion,
CurvePreferences: cfg.CurvePreferences,
DynamicRecordSizingDisabled: cfg.DynamicRecordSizingDisabled,
Renegotiation: cfg.Renegotiation,
}
}

9
vendor/github.com/garyburd/redigo/redis/go18.go generated vendored
View File

@ -1,9 +0,0 @@
// +build go1.8
package redis
import "crypto/tls"
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
return cfg.Clone()
}

85
vendor/github.com/garyburd/redigo/redis/list_test.go generated vendored
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@ -1,85 +0,0 @@
// Copyright 2018 Gary Burd
//
// 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.
// +build go1.9
package redis
import "testing"
func TestPoolList(t *testing.T) {
var idle idleList
var a, b, c idleConn
check := func(ics ...*idleConn) {
if idle.count != len(ics) {
t.Fatal("idle.count != len(ics)")
}
if len(ics) == 0 {
if idle.front != nil {
t.Fatalf("front not nil")
}
if idle.back != nil {
t.Fatalf("back not nil")
}
return
}
if idle.front != ics[0] {
t.Fatal("front != ics[0]")
}
if idle.back != ics[len(ics)-1] {
t.Fatal("back != ics[len(ics)-1]")
}
if idle.front.prev != nil {
t.Fatal("front.prev != nil")
}
if idle.back.next != nil {
t.Fatal("back.next != nil")
}
for i := 1; i < len(ics)-1; i++ {
if ics[i-1].next != ics[i] {
t.Fatal("ics[i-1].next != ics[i]")
}
if ics[i+1].prev != ics[i] {
t.Fatal("ics[i+1].prev != ics[i]")
}
}
}
idle.pushFront(&c)
check(&c)
idle.pushFront(&b)
check(&b, &c)
idle.pushFront(&a)
check(&a, &b, &c)
idle.popFront()
check(&b, &c)
idle.popFront()
check(&c)
idle.popFront()
check()
idle.pushFront(&c)
check(&c)
idle.pushFront(&b)
check(&b, &c)
idle.pushFront(&a)
check(&a, &b, &c)
idle.popBack()
check(&a, &b)
idle.popBack()
check(&a)
idle.popBack()
check()
}

134
vendor/github.com/garyburd/redigo/redis/log.go generated vendored
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@ -1,134 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis
import (
"bytes"
"fmt"
"log"
"time"
)
var (
_ ConnWithTimeout = (*loggingConn)(nil)
)
// NewLoggingConn returns a logging wrapper around a connection.
func NewLoggingConn(conn Conn, logger *log.Logger, prefix string) Conn {
if prefix != "" {
prefix = prefix + "."
}
return &loggingConn{conn, logger, prefix}
}
type loggingConn struct {
Conn
logger *log.Logger
prefix string
}
func (c *loggingConn) Close() error {
err := c.Conn.Close()
var buf bytes.Buffer
fmt.Fprintf(&buf, "%sClose() -> (%v)", c.prefix, err)
c.logger.Output(2, buf.String())
return err
}
func (c *loggingConn) printValue(buf *bytes.Buffer, v interface{}) {
const chop = 32
switch v := v.(type) {
case []byte:
if len(v) > chop {
fmt.Fprintf(buf, "%q...", v[:chop])
} else {
fmt.Fprintf(buf, "%q", v)
}
case string:
if len(v) > chop {
fmt.Fprintf(buf, "%q...", v[:chop])
} else {
fmt.Fprintf(buf, "%q", v)
}
case []interface{}:
if len(v) == 0 {
buf.WriteString("[]")
} else {
sep := "["
fin := "]"
if len(v) > chop {
v = v[:chop]
fin = "...]"
}
for _, vv := range v {
buf.WriteString(sep)
c.printValue(buf, vv)
sep = ", "
}
buf.WriteString(fin)
}
default:
fmt.Fprint(buf, v)
}
}
func (c *loggingConn) print(method, commandName string, args []interface{}, reply interface{}, err error) {
var buf bytes.Buffer
fmt.Fprintf(&buf, "%s%s(", c.prefix, method)
if method != "Receive" {
buf.WriteString(commandName)
for _, arg := range args {
buf.WriteString(", ")
c.printValue(&buf, arg)
}
}
buf.WriteString(") -> (")
if method != "Send" {
c.printValue(&buf, reply)
buf.WriteString(", ")
}
fmt.Fprintf(&buf, "%v)", err)
c.logger.Output(3, buf.String())
}
func (c *loggingConn) Do(commandName string, args ...interface{}) (interface{}, error) {
reply, err := c.Conn.Do(commandName, args...)
c.print("Do", commandName, args, reply, err)
return reply, err
}
func (c *loggingConn) DoWithTimeout(timeout time.Duration, commandName string, args ...interface{}) (interface{}, error) {
reply, err := DoWithTimeout(c.Conn, timeout, commandName, args...)
c.print("DoWithTimeout", commandName, args, reply, err)
return reply, err
}
func (c *loggingConn) Send(commandName string, args ...interface{}) error {
err := c.Conn.Send(commandName, args...)
c.print("Send", commandName, args, nil, err)
return err
}
func (c *loggingConn) Receive() (interface{}, error) {
reply, err := c.Conn.Receive()
c.print("Receive", "", nil, reply, err)
return reply, err
}
func (c *loggingConn) ReceiveWithTimeout(timeout time.Duration) (interface{}, error) {
reply, err := ReceiveWithTimeout(c.Conn, timeout)
c.print("ReceiveWithTimeout", "", nil, reply, err)
return reply, err
}

527
vendor/github.com/garyburd/redigo/redis/pool.go generated vendored
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@ -1,527 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis
import (
"bytes"
"crypto/rand"
"crypto/sha1"
"errors"
"io"
"strconv"
"sync"
"sync/atomic"
"time"
"github.com/garyburd/redigo/internal"
)
var (
_ ConnWithTimeout = (*pooledConnection)(nil)
_ ConnWithTimeout = (*errorConnection)(nil)
)
var nowFunc = time.Now // for testing
// ErrPoolExhausted is returned from a pool connection method (Do, Send,
// Receive, Flush, Err) when the maximum number of database connections in the
// pool has been reached.
var ErrPoolExhausted = errors.New("redigo: connection pool exhausted")
var (
errPoolClosed = errors.New("redigo: connection pool closed")
errConnClosed = errors.New("redigo: connection closed")
)
// Pool maintains a pool of connections. The application calls the Get method
// to get a connection from the pool and the connection's Close method to
// return the connection's resources to the pool.
//
// The following example shows how to use a pool in a web application. The
// application creates a pool at application startup and makes it available to
// request handlers using a package level variable. The pool configuration used
// here is an example, not a recommendation.
//
// func newPool(addr string) *redis.Pool {
// return &redis.Pool{
// MaxIdle: 3,
// IdleTimeout: 240 * time.Second,
// Dial: func () (redis.Conn, error) { return redis.Dial("tcp", addr) },
// }
// }
//
// var (
// pool *redis.Pool
// redisServer = flag.String("redisServer", ":6379", "")
// )
//
// func main() {
// flag.Parse()
// pool = newPool(*redisServer)
// ...
// }
//
// A request handler gets a connection from the pool and closes the connection
// when the handler is done:
//
// func serveHome(w http.ResponseWriter, r *http.Request) {
// conn := pool.Get()
// defer conn.Close()
// ...
// }
//
// Use the Dial function to authenticate connections with the AUTH command or
// select a database with the SELECT command:
//
// pool := &redis.Pool{
// // Other pool configuration not shown in this example.
// Dial: func () (redis.Conn, error) {
// c, err := redis.Dial("tcp", server)
// if err != nil {
// return nil, err
// }
// if _, err := c.Do("AUTH", password); err != nil {
// c.Close()
// return nil, err
// }
// if _, err := c.Do("SELECT", db); err != nil {
// c.Close()
// return nil, err
// }
// return c, nil
// },
// }
//
// Use the TestOnBorrow function to check the health of an idle connection
// before the connection is returned to the application. This example PINGs
// connections that have been idle more than a minute:
//
// pool := &redis.Pool{
// // Other pool configuration not shown in this example.
// TestOnBorrow: func(c redis.Conn, t time.Time) error {
// if time.Since(t) < time.Minute {
// return nil
// }
// _, err := c.Do("PING")
// return err
// },
// }
//
type Pool struct {
// Dial is an application supplied function for creating and configuring a
// connection.
//
// The connection returned from Dial must not be in a special state
// (subscribed to pubsub channel, transaction started, ...).
Dial func() (Conn, error)
// TestOnBorrow is an optional application supplied function for checking
// the health of an idle connection before the connection is used again by
// the application. Argument t is the time that the connection was returned
// to the pool. If the function returns an error, then the connection is
// closed.
TestOnBorrow func(c Conn, t time.Time) error
// Maximum number of idle connections in the pool.
MaxIdle int
// Maximum number of connections allocated by the pool at a given time.
// When zero, there is no limit on the number of connections in the pool.
MaxActive int
// Close connections after remaining idle for this duration. If the value
// is zero, then idle connections are not closed. Applications should set
// the timeout to a value less than the server's timeout.
IdleTimeout time.Duration
// If Wait is true and the pool is at the MaxActive limit, then Get() waits
// for a connection to be returned to the pool before returning.
Wait bool
chInitialized uint32 // set to 1 when field ch is initialized
mu sync.Mutex // mu protects the following fields
closed bool // set to true when the pool is closed.
active int // the number of open connections in the pool
ch chan struct{} // limits open connections when p.Wait is true
idle idleList // idle connections
}
// NewPool creates a new pool.
//
// Deprecated: Initialize the Pool directory as shown in the example.
func NewPool(newFn func() (Conn, error), maxIdle int) *Pool {
return &Pool{Dial: newFn, MaxIdle: maxIdle}
}
// Get gets a connection. The application must close the returned connection.
// This method always returns a valid connection so that applications can defer
// error handling to the first use of the connection. If there is an error
// getting an underlying connection, then the connection Err, Do, Send, Flush
// and Receive methods return that error.
func (p *Pool) Get() Conn {
c, err := p.get(nil)
if err != nil {
return errorConnection{err}
}
return &pooledConnection{p: p, c: c}
}
// PoolStats contains pool statistics.
type PoolStats struct {
// ActiveCount is the number of connections in the pool. The count includes
// idle connections and connections in use.
ActiveCount int
// IdleCount is the number of idle connections in the pool.
IdleCount int
}
// Stats returns pool's statistics.
func (p *Pool) Stats() PoolStats {
p.mu.Lock()
stats := PoolStats{
ActiveCount: p.active,
IdleCount: p.idle.count,
}
p.mu.Unlock()
return stats
}
// ActiveCount returns the number of connections in the pool. The count
// includes idle connections and connections in use.
func (p *Pool) ActiveCount() int {
p.mu.Lock()
active := p.active
p.mu.Unlock()
return active
}
// IdleCount returns the number of idle connections in the pool.
func (p *Pool) IdleCount() int {
p.mu.Lock()
idle := p.idle.count
p.mu.Unlock()
return idle
}
// Close releases the resources used by the pool.
func (p *Pool) Close() error {
p.mu.Lock()
if p.closed {
p.mu.Unlock()
return nil
}
p.closed = true
p.active -= p.idle.count
ic := p.idle.front
p.idle.count = 0
p.idle.front, p.idle.back = nil, nil
if p.ch != nil {
close(p.ch)
}
p.mu.Unlock()
for ; ic != nil; ic = ic.next {
ic.c.Close()
}
return nil
}
func (p *Pool) lazyInit() {
// Fast path.
if atomic.LoadUint32(&p.chInitialized) == 1 {
return
}
// Slow path.
p.mu.Lock()
if p.chInitialized == 0 {
p.ch = make(chan struct{}, p.MaxActive)
if p.closed {
close(p.ch)
} else {
for i := 0; i < p.MaxActive; i++ {
p.ch <- struct{}{}
}
}
atomic.StoreUint32(&p.chInitialized, 1)
}
p.mu.Unlock()
}
// get prunes stale connections and returns a connection from the idle list or
// creates a new connection.
func (p *Pool) get(ctx interface {
Done() <-chan struct{}
Err() error
}) (Conn, error) {
// Handle limit for p.Wait == true.
if p.Wait && p.MaxActive > 0 {
p.lazyInit()
if ctx == nil {
<-p.ch
} else {
select {
case <-p.ch:
case <-ctx.Done():
return nil, ctx.Err()
}
}
}
p.mu.Lock()
// Prune stale connections at the back of the idle list.
if p.IdleTimeout > 0 {
n := p.idle.count
for i := 0; i < n && p.idle.back != nil && p.idle.back.t.Add(p.IdleTimeout).Before(nowFunc()); i++ {
c := p.idle.back.c
p.idle.popBack()
p.mu.Unlock()
c.Close()
p.mu.Lock()
p.active--
}
}
// Get idle connection from the front of idle list.
for p.idle.front != nil {
ic := p.idle.front
p.idle.popFront()
p.mu.Unlock()
if p.TestOnBorrow == nil || p.TestOnBorrow(ic.c, ic.t) == nil {
return ic.c, nil
}
ic.c.Close()
p.mu.Lock()
p.active--
}
// Check for pool closed before dialing a new connection.
if p.closed {
p.mu.Unlock()
return nil, errors.New("redigo: get on closed pool")
}
// Handle limit for p.Wait == false.
if !p.Wait && p.MaxActive > 0 && p.active >= p.MaxActive {
p.mu.Unlock()
return nil, ErrPoolExhausted
}
p.active++
p.mu.Unlock()
c, err := p.Dial()
if err != nil {
c = nil
p.mu.Lock()
p.active--
if p.ch != nil && !p.closed {
p.ch <- struct{}{}
}
p.mu.Unlock()
}
return c, err
}
func (p *Pool) put(c Conn, forceClose bool) error {
p.mu.Lock()
if !p.closed && !forceClose {
p.idle.pushFront(&idleConn{t: nowFunc(), c: c})
if p.idle.count > p.MaxIdle {
c = p.idle.back.c
p.idle.popBack()
} else {
c = nil
}
}
if c != nil {
p.mu.Unlock()
c.Close()
p.mu.Lock()
p.active--
}
if p.ch != nil && !p.closed {
p.ch <- struct{}{}
}
p.mu.Unlock()
return nil
}
type pooledConnection struct {
p *Pool
c Conn
state int
}
var (
sentinel []byte
sentinelOnce sync.Once
)
func initSentinel() {
p := make([]byte, 64)
if _, err := rand.Read(p); err == nil {
sentinel = p
} else {
h := sha1.New()
io.WriteString(h, "Oops, rand failed. Use time instead.")
io.WriteString(h, strconv.FormatInt(time.Now().UnixNano(), 10))
sentinel = h.Sum(nil)
}
}
func (pc *pooledConnection) Close() error {
c := pc.c
if _, ok := c.(errorConnection); ok {
return nil
}
pc.c = errorConnection{errConnClosed}
if pc.state&internal.MultiState != 0 {
c.Send("DISCARD")
pc.state &^= (internal.MultiState | internal.WatchState)
} else if pc.state&internal.WatchState != 0 {
c.Send("UNWATCH")
pc.state &^= internal.WatchState
}
if pc.state&internal.SubscribeState != 0 {
c.Send("UNSUBSCRIBE")
c.Send("PUNSUBSCRIBE")
// To detect the end of the message stream, ask the server to echo
// a sentinel value and read until we see that value.
sentinelOnce.Do(initSentinel)
c.Send("ECHO", sentinel)
c.Flush()
for {
p, err := c.Receive()
if err != nil {
break
}
if p, ok := p.([]byte); ok && bytes.Equal(p, sentinel) {
pc.state &^= internal.SubscribeState
break
}
}
}
c.Do("")
pc.p.put(c, pc.state != 0 || c.Err() != nil)
return nil
}
func (pc *pooledConnection) Err() error {
return pc.c.Err()
}
func (pc *pooledConnection) Do(commandName string, args ...interface{}) (reply interface{}, err error) {
ci := internal.LookupCommandInfo(commandName)
pc.state = (pc.state | ci.Set) &^ ci.Clear
return pc.c.Do(commandName, args...)
}
func (pc *pooledConnection) DoWithTimeout(timeout time.Duration, commandName string, args ...interface{}) (reply interface{}, err error) {
cwt, ok := pc.c.(ConnWithTimeout)
if !ok {
return nil, errTimeoutNotSupported
}
ci := internal.LookupCommandInfo(commandName)
pc.state = (pc.state | ci.Set) &^ ci.Clear
return cwt.DoWithTimeout(timeout, commandName, args...)
}
func (pc *pooledConnection) Send(commandName string, args ...interface{}) error {
ci := internal.LookupCommandInfo(commandName)
pc.state = (pc.state | ci.Set) &^ ci.Clear
return pc.c.Send(commandName, args...)
}
func (pc *pooledConnection) Flush() error {
return pc.c.Flush()
}
func (pc *pooledConnection) Receive() (reply interface{}, err error) {
return pc.c.Receive()
}
func (pc *pooledConnection) ReceiveWithTimeout(timeout time.Duration) (reply interface{}, err error) {
cwt, ok := pc.c.(ConnWithTimeout)
if !ok {
return nil, errTimeoutNotSupported
}
return cwt.ReceiveWithTimeout(timeout)
}
type errorConnection struct{ err error }
func (ec errorConnection) Do(string, ...interface{}) (interface{}, error) { return nil, ec.err }
func (ec errorConnection) DoWithTimeout(time.Duration, string, ...interface{}) (interface{}, error) {
return nil, ec.err
}
func (ec errorConnection) Send(string, ...interface{}) error { return ec.err }
func (ec errorConnection) Err() error { return ec.err }
func (ec errorConnection) Close() error { return nil }
func (ec errorConnection) Flush() error { return ec.err }
func (ec errorConnection) Receive() (interface{}, error) { return nil, ec.err }
func (ec errorConnection) ReceiveWithTimeout(time.Duration) (interface{}, error) { return nil, ec.err }
type idleList struct {
count int
front, back *idleConn
}
type idleConn struct {
c Conn
t time.Time
next, prev *idleConn
}
func (l *idleList) pushFront(ic *idleConn) {
ic.next = l.front
ic.prev = nil
if l.count == 0 {
l.back = ic
} else {
l.front.prev = ic
}
l.front = ic
l.count++
return
}
func (l *idleList) popFront() {
ic := l.front
l.count--
if l.count == 0 {
l.front, l.back = nil, nil
} else {
ic.next.prev = nil
l.front = ic.next
}
ic.next, ic.prev = nil, nil
}
func (l *idleList) popBack() {
ic := l.back
l.count--
if l.count == 0 {
l.front, l.back = nil, nil
} else {
ic.prev.next = nil
l.back = ic.prev
}
ic.next, ic.prev = nil, nil
}

35
vendor/github.com/garyburd/redigo/redis/pool17.go generated vendored
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@ -1,35 +0,0 @@
// Copyright 2018 Gary Burd
//
// 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.
// +build go1.7
package redis
import "context"
// GetContext gets a connection using the provided context.
//
// The provided Context must be non-nil. If the context expires before the
// connection is complete, an error is returned. Any expiration on the context
// will not affect the returned connection.
//
// If the function completes without error, then the application must close the
// returned connection.
func (p *Pool) GetContext(ctx context.Context) (Conn, error) {
c, err := p.get(ctx)
if err != nil {
return errorConnection{err}, err
}
return &pooledConnection{p: p, c: c}, nil
}

58
vendor/github.com/garyburd/redigo/redis/pool17_test.go generated vendored
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@ -1,58 +0,0 @@
// Copyright 2018 Gary Burd
//
// 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.
// +build go1.7
package redis_test
import (
"context"
"testing"
"github.com/garyburd/redigo/redis"
)
func TestWaitPoolGetAfterClose(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 1,
MaxActive: 1,
Dial: d.dial,
Wait: true,
}
p.Close()
_, err := p.GetContext(context.Background())
if err == nil {
t.Fatal("expected error")
}
}
func TestWaitPoolGetCanceledContext(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 1,
MaxActive: 1,
Dial: d.dial,
Wait: true,
}
defer p.Close()
ctx, f := context.WithCancel(context.Background())
f()
c := p.Get()
defer c.Close()
_, err := p.GetContext(ctx)
if err != context.Canceled {
t.Fatalf("got error %v, want %v", err, context.Canceled)
}
}

688
vendor/github.com/garyburd/redigo/redis/pool_test.go generated vendored
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@ -1,688 +0,0 @@
// Copyright 2011 Gary Burd
//
// 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 redis_test
import (
"errors"
"io"
"reflect"
"sync"
"testing"
"time"
"github.com/garyburd/redigo/redis"
)
type poolTestConn struct {
d *poolDialer
err error
redis.Conn
}
func (c *poolTestConn) Close() error {
c.d.mu.Lock()
c.d.open -= 1
c.d.mu.Unlock()
return c.Conn.Close()
}
func (c *poolTestConn) Err() error { return c.err }
func (c *poolTestConn) Do(commandName string, args ...interface{}) (interface{}, error) {
if commandName == "ERR" {
c.err = args[0].(error)
commandName = "PING"
}
if commandName != "" {
c.d.commands = append(c.d.commands, commandName)
}
return c.Conn.Do(commandName, args...)
}
func (c *poolTestConn) Send(commandName string, args ...interface{}) error {
c.d.commands = append(c.d.commands, commandName)
return c.Conn.Send(commandName, args...)
}
type poolDialer struct {
mu sync.Mutex
t *testing.T
dialed int
open int
commands []string
dialErr error
}
func (d *poolDialer) dial() (redis.Conn, error) {
d.mu.Lock()
d.dialed += 1
dialErr := d.dialErr
d.mu.Unlock()
if dialErr != nil {
return nil, d.dialErr
}
c, err := redis.DialDefaultServer()
if err != nil {
return nil, err
}
d.mu.Lock()
d.open += 1
d.mu.Unlock()
return &poolTestConn{d: d, Conn: c}, nil
}
func (d *poolDialer) check(message string, p *redis.Pool, dialed, open, inuse int) {
d.mu.Lock()
if d.dialed != dialed {
d.t.Errorf("%s: dialed=%d, want %d", message, d.dialed, dialed)
}
if d.open != open {
d.t.Errorf("%s: open=%d, want %d", message, d.open, open)
}
stats := p.Stats()
if stats.ActiveCount != open {
d.t.Errorf("%s: active=%d, want %d", message, stats.ActiveCount, open)
}
if stats.IdleCount != open-inuse {
d.t.Errorf("%s: idle=%d, want %d", message, stats.IdleCount, open-inuse)
}
d.mu.Unlock()
}
func TestPoolReuse(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
Dial: d.dial,
}
for i := 0; i < 10; i++ {
c1 := p.Get()
c1.Do("PING")
c2 := p.Get()
c2.Do("PING")
c1.Close()
c2.Close()
}
d.check("before close", p, 2, 2, 0)
p.Close()
d.check("after close", p, 2, 0, 0)
}
func TestPoolMaxIdle(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
Dial: d.dial,
}
defer p.Close()
for i := 0; i < 10; i++ {
c1 := p.Get()
c1.Do("PING")
c2 := p.Get()
c2.Do("PING")
c3 := p.Get()
c3.Do("PING")
c1.Close()
c2.Close()
c3.Close()
}
d.check("before close", p, 12, 2, 0)
p.Close()
d.check("after close", p, 12, 0, 0)
}
func TestPoolError(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
Dial: d.dial,
}
defer p.Close()
c := p.Get()
c.Do("ERR", io.EOF)
if c.Err() == nil {
t.Errorf("expected c.Err() != nil")
}
c.Close()
c = p.Get()
c.Do("ERR", io.EOF)
c.Close()
d.check(".", p, 2, 0, 0)
}
func TestPoolClose(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
Dial: d.dial,
}
defer p.Close()
c1 := p.Get()
c1.Do("PING")
c2 := p.Get()
c2.Do("PING")
c3 := p.Get()
c3.Do("PING")
c1.Close()
if _, err := c1.Do("PING"); err == nil {
t.Errorf("expected error after connection closed")
}
c2.Close()
c2.Close()
p.Close()
d.check("after pool close", p, 3, 1, 1)
if _, err := c1.Do("PING"); err == nil {
t.Errorf("expected error after connection and pool closed")
}
c3.Close()
d.check("after conn close", p, 3, 0, 0)
c1 = p.Get()
if _, err := c1.Do("PING"); err == nil {
t.Errorf("expected error after pool closed")
}
}
func TestPoolTimeout(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
IdleTimeout: 300 * time.Second,
Dial: d.dial,
}
defer p.Close()
now := time.Now()
redis.SetNowFunc(func() time.Time { return now })
defer redis.SetNowFunc(time.Now)
c := p.Get()
c.Do("PING")
c.Close()
d.check("1", p, 1, 1, 0)
now = now.Add(p.IdleTimeout + 1)
c = p.Get()
c.Do("PING")
c.Close()
d.check("2", p, 2, 1, 0)
}
func TestPoolConcurrenSendReceive(t *testing.T) {
p := &redis.Pool{
Dial: redis.DialDefaultServer,
}
defer p.Close()
c := p.Get()
done := make(chan error, 1)
go func() {
_, err := c.Receive()
done <- err
}()
c.Send("PING")
c.Flush()
err := <-done
if err != nil {
t.Fatalf("Receive() returned error %v", err)
}
_, err = c.Do("")
if err != nil {
t.Fatalf("Do() returned error %v", err)
}
c.Close()
}
func TestPoolBorrowCheck(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
Dial: d.dial,
TestOnBorrow: func(redis.Conn, time.Time) error { return redis.Error("BLAH") },
}
defer p.Close()
for i := 0; i < 10; i++ {
c := p.Get()
c.Do("PING")
c.Close()
}
d.check("1", p, 10, 1, 0)
}
func TestPoolMaxActive(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
MaxActive: 2,
Dial: d.dial,
}
defer p.Close()
c1 := p.Get()
c1.Do("PING")
c2 := p.Get()
c2.Do("PING")
d.check("1", p, 2, 2, 2)
c3 := p.Get()
if _, err := c3.Do("PING"); err != redis.ErrPoolExhausted {
t.Errorf("expected pool exhausted")
}
c3.Close()
d.check("2", p, 2, 2, 2)
c2.Close()
d.check("3", p, 2, 2, 1)
c3 = p.Get()
if _, err := c3.Do("PING"); err != nil {
t.Errorf("expected good channel, err=%v", err)
}
c3.Close()
d.check("4", p, 2, 2, 1)
}
func TestPoolMonitorCleanup(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
MaxActive: 2,
Dial: d.dial,
}
defer p.Close()
c := p.Get()
c.Send("MONITOR")
c.Close()
d.check("", p, 1, 0, 0)
}
func TestPoolPubSubCleanup(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
MaxActive: 2,
Dial: d.dial,
}
defer p.Close()
c := p.Get()
c.Send("SUBSCRIBE", "x")
c.Close()
want := []string{"SUBSCRIBE", "UNSUBSCRIBE", "PUNSUBSCRIBE", "ECHO"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
c = p.Get()
c.Send("PSUBSCRIBE", "x*")
c.Close()
want = []string{"PSUBSCRIBE", "UNSUBSCRIBE", "PUNSUBSCRIBE", "ECHO"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
}
func TestPoolTransactionCleanup(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 2,
MaxActive: 2,
Dial: d.dial,
}
defer p.Close()
c := p.Get()
c.Do("WATCH", "key")
c.Do("PING")
c.Close()
want := []string{"WATCH", "PING", "UNWATCH"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
c = p.Get()
c.Do("WATCH", "key")
c.Do("UNWATCH")
c.Do("PING")
c.Close()
want = []string{"WATCH", "UNWATCH", "PING"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
c = p.Get()
c.Do("WATCH", "key")
c.Do("MULTI")
c.Do("PING")
c.Close()
want = []string{"WATCH", "MULTI", "PING", "DISCARD"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
c = p.Get()
c.Do("WATCH", "key")
c.Do("MULTI")
c.Do("DISCARD")
c.Do("PING")
c.Close()
want = []string{"WATCH", "MULTI", "DISCARD", "PING"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
c = p.Get()
c.Do("WATCH", "key")
c.Do("MULTI")
c.Do("EXEC")
c.Do("PING")
c.Close()
want = []string{"WATCH", "MULTI", "EXEC", "PING"}
if !reflect.DeepEqual(d.commands, want) {
t.Errorf("got commands %v, want %v", d.commands, want)
}
d.commands = nil
}
func startGoroutines(p *redis.Pool, cmd string, args ...interface{}) chan error {
errs := make(chan error, 10)
for i := 0; i < cap(errs); i++ {
go func() {
c := p.Get()
_, err := c.Do(cmd, args...)
c.Close()
errs <- err
}()
}
return errs
}
func TestWaitPool(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 1,
MaxActive: 1,
Dial: d.dial,
Wait: true,
}
defer p.Close()
c := p.Get()
errs := startGoroutines(p, "PING")
d.check("before close", p, 1, 1, 1)
c.Close()
timeout := time.After(2 * time.Second)
for i := 0; i < cap(errs); i++ {
select {
case err := <-errs:
if err != nil {
t.Fatal(err)
}
case <-timeout:
t.Fatalf("timeout waiting for blocked goroutine %d", i)
}
}
d.check("done", p, 1, 1, 0)
}
func TestWaitPoolClose(t *testing.T) {
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 1,
MaxActive: 1,
Dial: d.dial,
Wait: true,
}
defer p.Close()
c := p.Get()
if _, err := c.Do("PING"); err != nil {
t.Fatal(err)
}
errs := startGoroutines(p, "PING")
d.check("before close", p, 1, 1, 1)
p.Close()
timeout := time.After(2 * time.Second)
for i := 0; i < cap(errs); i++ {
select {
case err := <-errs:
switch err {
case nil:
t.Fatal("blocked goroutine did not get error")
case redis.ErrPoolExhausted:
t.Fatal("blocked goroutine got pool exhausted error")
}
case <-timeout:
t.Fatal("timeout waiting for blocked goroutine")
}
}
c.Close()
d.check("done", p, 1, 0, 0)
}
func TestWaitPoolCommandError(t *testing.T) {
testErr := errors.New("test")
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 1,
MaxActive: 1,
Dial: d.dial,
Wait: true,
}
defer p.Close()
c := p.Get()
errs := startGoroutines(p, "ERR", testErr)
d.check("before close", p, 1, 1, 1)
c.Close()
timeout := time.After(2 * time.Second)
for i := 0; i < cap(errs); i++ {
select {
case err := <-errs:
if err != nil {
t.Fatal(err)
}
case <-timeout:
t.Fatalf("timeout waiting for blocked goroutine %d", i)
}
}
d.check("done", p, cap(errs), 0, 0)
}
func TestWaitPoolDialError(t *testing.T) {
testErr := errors.New("test")
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: 1,
MaxActive: 1,
Dial: d.dial,
Wait: true,
}
defer p.Close()
c := p.Get()
errs := startGoroutines(p, "ERR", testErr)
d.check("before close", p, 1, 1, 1)
d.dialErr = errors.New("dial")
c.Close()
nilCount := 0
errCount := 0
timeout := time.After(2 * time.Second)
for i := 0; i < cap(errs); i++ {
select {
case err := <-errs:
switch err {
case nil:
nilCount++
case d.dialErr:
errCount++
default:
t.Fatalf("expected dial error or nil, got %v", err)
}
case <-timeout:
t.Fatalf("timeout waiting for blocked goroutine %d", i)
}
}
if nilCount != 1 {
t.Errorf("expected one nil error, got %d", nilCount)
}
if errCount != cap(errs)-1 {
t.Errorf("expected %d dial errors, got %d", cap(errs)-1, errCount)
}
d.check("done", p, cap(errs), 0, 0)
}
// Borrowing requires us to iterate over the idle connections, unlock the pool,
// and perform a blocking operation to check the connection still works. If
// TestOnBorrow fails, we must reacquire the lock and continue iteration. This
// test ensures that iteration will work correctly if multiple threads are
// iterating simultaneously.
func TestLocking_TestOnBorrowFails_PoolDoesntCrash(t *testing.T) {
const count = 100
// First we'll Create a pool where the pilfering of idle connections fails.
d := poolDialer{t: t}
p := &redis.Pool{
MaxIdle: count,
MaxActive: count,
Dial: d.dial,
TestOnBorrow: func(c redis.Conn, t time.Time) error {
return errors.New("No way back into the real world.")
},
}
defer p.Close()
// Fill the pool with idle connections.
conns := make([]redis.Conn, count)
for i := range conns {
conns[i] = p.Get()
}
for i := range conns {
conns[i].Close()
}
// Spawn a bunch of goroutines to thrash the pool.
var wg sync.WaitGroup
wg.Add(count)
for i := 0; i < count; i++ {
go func() {
c := p.Get()
if c.Err() != nil {
t.Errorf("pool get failed: %v", c.Err())
}
c.Close()
wg.Done()
}()
}
wg.Wait()
if d.dialed != count*2 {
t.Errorf("Expected %d dials, got %d", count*2, d.dialed)
}
}
func BenchmarkPoolGet(b *testing.B) {
b.StopTimer()
p := redis.Pool{Dial: redis.DialDefaultServer, MaxIdle: 2}
c := p.Get()
if err := c.Err(); err != nil {
b.Fatal(err)
}
c.Close()
defer p.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
c = p.Get()
c.Close()
}
}
func BenchmarkPoolGetErr(b *testing.B) {
b.StopTimer()
p := redis.Pool{Dial: redis.DialDefaultServer, MaxIdle: 2}
c := p.Get()
if err := c.Err(); err != nil {
b.Fatal(err)
}
c.Close()
defer p.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
c = p.Get()
if err := c.Err(); err != nil {
b.Fatal(err)
}
c.Close()
}
}
func BenchmarkPoolGetPing(b *testing.B) {
b.StopTimer()
p := redis.Pool{Dial: redis.DialDefaultServer, MaxIdle: 2}
c := p.Get()
if err := c.Err(); err != nil {
b.Fatal(err)
}
c.Close()
defer p.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
c = p.Get()
if _, err := c.Do("PING"); err != nil {
b.Fatal(err)
}
c.Close()
}
}

157
vendor/github.com/garyburd/redigo/redis/pubsub.go generated vendored
View File

@ -1,157 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis
import (
"errors"
"time"
)
// Subscription represents a subscribe or unsubscribe notification.
type Subscription struct {
// Kind is "subscribe", "unsubscribe", "psubscribe" or "punsubscribe"
Kind string
// The channel that was changed.
Channel string
// The current number of subscriptions for connection.
Count int
}
// Message represents a message notification.
type Message struct {
// The originating channel.
Channel string
// The message data.
Data []byte
}
// PMessage represents a pmessage notification.
type PMessage struct {
// The matched pattern.
Pattern string
// The originating channel.
Channel string
// The message data.
Data []byte
}
// Pong represents a pubsub pong notification.
type Pong struct {
Data string
}
// PubSubConn wraps a Conn with convenience methods for subscribers.
type PubSubConn struct {
Conn Conn
}
// Close closes the connection.
func (c PubSubConn) Close() error {
return c.Conn.Close()
}
// Subscribe subscribes the connection to the specified channels.
func (c PubSubConn) Subscribe(channel ...interface{}) error {
c.Conn.Send("SUBSCRIBE", channel...)
return c.Conn.Flush()
}
// PSubscribe subscribes the connection to the given patterns.
func (c PubSubConn) PSubscribe(channel ...interface{}) error {
c.Conn.Send("PSUBSCRIBE", channel...)
return c.Conn.Flush()
}
// Unsubscribe unsubscribes the connection from the given channels, or from all
// of them if none is given.
func (c PubSubConn) Unsubscribe(channel ...interface{}) error {
c.Conn.Send("UNSUBSCRIBE", channel...)
return c.Conn.Flush()
}
// PUnsubscribe unsubscribes the connection from the given patterns, or from all
// of them if none is given.
func (c PubSubConn) PUnsubscribe(channel ...interface{}) error {
c.Conn.Send("PUNSUBSCRIBE", channel...)
return c.Conn.Flush()
}
// Ping sends a PING to the server with the specified data.
//
// The connection must be subscribed to at least one channel or pattern when
// calling this method.
func (c PubSubConn) Ping(data string) error {
c.Conn.Send("PING", data)
return c.Conn.Flush()
}
// Receive returns a pushed message as a Subscription, Message, PMessage, Pong
// or error. The return value is intended to be used directly in a type switch
// as illustrated in the PubSubConn example.
func (c PubSubConn) Receive() interface{} {
return c.receiveInternal(c.Conn.Receive())
}
// ReceiveWithTimeout is like Receive, but it allows the application to
// override the connection's default timeout.
func (c PubSubConn) ReceiveWithTimeout(timeout time.Duration) interface{} {
return c.receiveInternal(ReceiveWithTimeout(c.Conn, timeout))
}
func (c PubSubConn) receiveInternal(replyArg interface{}, errArg error) interface{} {
reply, err := Values(replyArg, errArg)
if err != nil {
return err
}
var kind string
reply, err = Scan(reply, &kind)
if err != nil {
return err
}
switch kind {
case "message":
var m Message
if _, err := Scan(reply, &m.Channel, &m.Data); err != nil {
return err
}
return m
case "pmessage":
var pm PMessage
if _, err := Scan(reply, &pm.Pattern, &pm.Channel, &pm.Data); err != nil {
return err
}
return pm
case "subscribe", "psubscribe", "unsubscribe", "punsubscribe":
s := Subscription{Kind: kind}
if _, err := Scan(reply, &s.Channel, &s.Count); err != nil {
return err
}
return s
case "pong":
var p Pong
if _, err := Scan(reply, &p.Data); err != nil {
return err
}
return p
}
return errors.New("redigo: unknown pubsub notification")
}

165
vendor/github.com/garyburd/redigo/redis/pubsub_example_test.go generated vendored
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@ -1,165 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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.
// +build go1.7
package redis_test
import (
"context"
"fmt"
"time"
"github.com/garyburd/redigo/redis"
)
// listenPubSubChannels listens for messages on Redis pubsub channels. The
// onStart function is called after the channels are subscribed. The onMessage
// function is called for each message.
func listenPubSubChannels(ctx context.Context, redisServerAddr string,
onStart func() error,
onMessage func(channel string, data []byte) error,
channels ...string) error {
// A ping is set to the server with this period to test for the health of
// the connection and server.
const healthCheckPeriod = time.Minute
c, err := redis.Dial("tcp", redisServerAddr,
// Read timeout on server should be greater than ping period.
redis.DialReadTimeout(healthCheckPeriod+10*time.Second),
redis.DialWriteTimeout(10*time.Second))
if err != nil {
return err
}
defer c.Close()
psc := redis.PubSubConn{Conn: c}
if err := psc.Subscribe(redis.Args{}.AddFlat(channels)...); err != nil {
return err
}
done := make(chan error, 1)
// Start a goroutine to receive notifications from the server.
go func() {
for {
switch n := psc.Receive().(type) {
case error:
done <- n
return
case redis.Message:
if err := onMessage(n.Channel, n.Data); err != nil {
done <- err
return
}
case redis.Subscription:
switch n.Count {
case len(channels):
// Notify application when all channels are subscribed.
if err := onStart(); err != nil {
done <- err
return
}
case 0:
// Return from the goroutine when all channels are unsubscribed.
done <- nil
return
}
}
}
}()
ticker := time.NewTicker(healthCheckPeriod)
defer ticker.Stop()
loop:
for err == nil {
select {
case <-ticker.C:
// Send ping to test health of connection and server. If
// corresponding pong is not received, then receive on the
// connection will timeout and the receive goroutine will exit.
if err = psc.Ping(""); err != nil {
break loop
}
case <-ctx.Done():
break loop
case err := <-done:
// Return error from the receive goroutine.
return err
}
}
// Signal the receiving goroutine to exit by unsubscribing from all channels.
psc.Unsubscribe()
// Wait for goroutine to complete.
return <-done
}
func publish() {
c, err := dial()
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
c.Do("PUBLISH", "c1", "hello")
c.Do("PUBLISH", "c2", "world")
c.Do("PUBLISH", "c1", "goodbye")
}
// This example shows how receive pubsub notifications with cancelation and
// health checks.
func ExamplePubSubConn() {
redisServerAddr, err := serverAddr()
if err != nil {
fmt.Println(err)
return
}
ctx, cancel := context.WithCancel(context.Background())
err = listenPubSubChannels(ctx,
redisServerAddr,
func() error {
// The start callback is a good place to backfill missed
// notifications. For the purpose of this example, a goroutine is
// started to send notifications.
go publish()
return nil
},
func(channel string, message []byte) error {
fmt.Printf("channel: %s, message: %s\n", channel, message)
// For the purpose of this example, cancel the listener's context
// after receiving last message sent by publish().
if string(message) == "goodbye" {
cancel()
}
return nil
},
"c1", "c2")
if err != nil {
fmt.Println(err)
return
}
// Output:
// channel: c1, message: hello
// channel: c2, message: world
// channel: c1, message: goodbye
}

74
vendor/github.com/garyburd/redigo/redis/pubsub_test.go generated vendored
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@ -1,74 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis_test
import (
"reflect"
"testing"
"time"
"github.com/garyburd/redigo/redis"
)
func expectPushed(t *testing.T, c redis.PubSubConn, message string, expected interface{}) {
actual := c.Receive()
if !reflect.DeepEqual(actual, expected) {
t.Errorf("%s = %v, want %v", message, actual, expected)
}
}
func TestPushed(t *testing.T) {
pc, err := redis.DialDefaultServer()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer pc.Close()
sc, err := redis.DialDefaultServer()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer sc.Close()
c := redis.PubSubConn{Conn: sc}
c.Subscribe("c1")
expectPushed(t, c, "Subscribe(c1)", redis.Subscription{Kind: "subscribe", Channel: "c1", Count: 1})
c.Subscribe("c2")
expectPushed(t, c, "Subscribe(c2)", redis.Subscription{Kind: "subscribe", Channel: "c2", Count: 2})
c.PSubscribe("p1")
expectPushed(t, c, "PSubscribe(p1)", redis.Subscription{Kind: "psubscribe", Channel: "p1", Count: 3})
c.PSubscribe("p2")
expectPushed(t, c, "PSubscribe(p2)", redis.Subscription{Kind: "psubscribe", Channel: "p2", Count: 4})
c.PUnsubscribe()
expectPushed(t, c, "Punsubscribe(p1)", redis.Subscription{Kind: "punsubscribe", Channel: "p1", Count: 3})
expectPushed(t, c, "Punsubscribe()", redis.Subscription{Kind: "punsubscribe", Channel: "p2", Count: 2})
pc.Do("PUBLISH", "c1", "hello")
expectPushed(t, c, "PUBLISH c1 hello", redis.Message{Channel: "c1", Data: []byte("hello")})
c.Ping("hello")
expectPushed(t, c, `Ping("hello")`, redis.Pong{Data: "hello"})
c.Conn.Send("PING")
c.Conn.Flush()
expectPushed(t, c, `Send("PING")`, redis.Pong{})
c.Ping("timeout")
got := c.ReceiveWithTimeout(time.Minute)
if want := (redis.Pong{Data: "timeout"}); want != got {
t.Errorf("recv /w timeout got %v, want %v", got, want)
}
}

117
vendor/github.com/garyburd/redigo/redis/redis.go generated vendored
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@ -1,117 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis
import (
"errors"
"time"
)
// Error represents an error returned in a command reply.
type Error string
func (err Error) Error() string { return string(err) }
// Conn represents a connection to a Redis server.
type Conn interface {
// Close closes the connection.
Close() error
// Err returns a non-nil value when the connection is not usable.
Err() error
// Do sends a command to the server and returns the received reply.
Do(commandName string, args ...interface{}) (reply interface{}, err error)
// Send writes the command to the client's output buffer.
Send(commandName string, args ...interface{}) error
// Flush flushes the output buffer to the Redis server.
Flush() error
// Receive receives a single reply from the Redis server
Receive() (reply interface{}, err error)
}
// Argument is the interface implemented by an object which wants to control how
// the object is converted to Redis bulk strings.
type Argument interface {
// RedisArg returns a value to be encoded as a bulk string per the
// conversions listed in the section 'Executing Commands'.
// Implementations should typically return a []byte or string.
RedisArg() interface{}
}
// Scanner is implemented by an object which wants to control its value is
// interpreted when read from Redis.
type Scanner interface {
// RedisScan assigns a value from a Redis value. The argument src is one of
// the reply types listed in the section `Executing Commands`.
//
// An error should be returned if the value cannot be stored without
// loss of information.
RedisScan(src interface{}) error
}
// ConnWithTimeout is an optional interface that allows the caller to override
// a connection's default read timeout. This interface is useful for executing
// the BLPOP, BRPOP, BRPOPLPUSH, XREAD and other commands that block at the
// server.
//
// A connection's default read timeout is set with the DialReadTimeout dial
// option. Applications should rely on the default timeout for commands that do
// not block at the server.
//
// All of the Conn implementations in this package satisfy the ConnWithTimeout
// interface.
//
// Use the DoWithTimeout and ReceiveWithTimeout helper functions to simplify
// use of this interface.
type ConnWithTimeout interface {
Conn
// Do sends a command to the server and returns the received reply.
// The timeout overrides the read timeout set when dialing the
// connection.
DoWithTimeout(timeout time.Duration, commandName string, args ...interface{}) (reply interface{}, err error)
// Receive receives a single reply from the Redis server. The timeout
// overrides the read timeout set when dialing the connection.
ReceiveWithTimeout(timeout time.Duration) (reply interface{}, err error)
}
var errTimeoutNotSupported = errors.New("redis: connection does not support ConnWithTimeout")
// DoWithTimeout executes a Redis command with the specified read timeout. If
// the connection does not satisfy the ConnWithTimeout interface, then an error
// is returned.
func DoWithTimeout(c Conn, timeout time.Duration, cmd string, args ...interface{}) (interface{}, error) {
cwt, ok := c.(ConnWithTimeout)
if !ok {
return nil, errTimeoutNotSupported
}
return cwt.DoWithTimeout(timeout, cmd, args...)
}
// ReceiveWithTimeout receives a reply with the specified read timeout. If the
// connection does not satisfy the ConnWithTimeout interface, then an error is
// returned.
func ReceiveWithTimeout(c Conn, timeout time.Duration) (interface{}, error) {
cwt, ok := c.(ConnWithTimeout)
if !ok {
return nil, errTimeoutNotSupported
}
return cwt.ReceiveWithTimeout(timeout)
}

71
vendor/github.com/garyburd/redigo/redis/redis_test.go generated vendored
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@ -1,71 +0,0 @@
// Copyright 2017 Gary Burd
//
// 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 redis_test
import (
"testing"
"time"
"github.com/garyburd/redigo/redis"
)
type timeoutTestConn int
func (tc timeoutTestConn) Do(string, ...interface{}) (interface{}, error) {
return time.Duration(-1), nil
}
func (tc timeoutTestConn) DoWithTimeout(timeout time.Duration, cmd string, args ...interface{}) (interface{}, error) {
return timeout, nil
}
func (tc timeoutTestConn) Receive() (interface{}, error) {
return time.Duration(-1), nil
}
func (tc timeoutTestConn) ReceiveWithTimeout(timeout time.Duration) (interface{}, error) {
return timeout, nil
}
func (tc timeoutTestConn) Send(string, ...interface{}) error { return nil }
func (tc timeoutTestConn) Err() error { return nil }
func (tc timeoutTestConn) Close() error { return nil }
func (tc timeoutTestConn) Flush() error { return nil }
func testTimeout(t *testing.T, c redis.Conn) {
r, err := c.Do("PING")
if r != time.Duration(-1) || err != nil {
t.Errorf("Do() = %v, %v, want %v, %v", r, err, time.Duration(-1), nil)
}
r, err = redis.DoWithTimeout(c, time.Minute, "PING")
if r != time.Minute || err != nil {
t.Errorf("DoWithTimeout() = %v, %v, want %v, %v", r, err, time.Minute, nil)
}
r, err = c.Receive()
if r != time.Duration(-1) || err != nil {
t.Errorf("Receive() = %v, %v, want %v, %v", r, err, time.Duration(-1), nil)
}
r, err = redis.ReceiveWithTimeout(c, time.Minute)
if r != time.Minute || err != nil {
t.Errorf("ReceiveWithTimeout() = %v, %v, want %v, %v", r, err, time.Minute, nil)
}
}
func TestConnTimeout(t *testing.T) {
testTimeout(t, timeoutTestConn(0))
}
func TestPoolConnTimeout(t *testing.T) {
p := &redis.Pool{Dial: func() (redis.Conn, error) { return timeoutTestConn(0), nil }}
testTimeout(t, p.Get())
}

479
vendor/github.com/garyburd/redigo/redis/reply.go generated vendored
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@ -1,479 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis
import (
"errors"
"fmt"
"strconv"
)
// ErrNil indicates that a reply value is nil.
var ErrNil = errors.New("redigo: nil returned")
// Int is a helper that converts a command reply to an integer. If err is not
// equal to nil, then Int returns 0, err. Otherwise, Int converts the
// reply to an int as follows:
//
// Reply type Result
// integer int(reply), nil
// bulk string parsed reply, nil
// nil 0, ErrNil
// other 0, error
func Int(reply interface{}, err error) (int, error) {
if err != nil {
return 0, err
}
switch reply := reply.(type) {
case int64:
x := int(reply)
if int64(x) != reply {
return 0, strconv.ErrRange
}
return x, nil
case []byte:
n, err := strconv.ParseInt(string(reply), 10, 0)
return int(n), err
case nil:
return 0, ErrNil
case Error:
return 0, reply
}
return 0, fmt.Errorf("redigo: unexpected type for Int, got type %T", reply)
}
// Int64 is a helper that converts a command reply to 64 bit integer. If err is
// not equal to nil, then Int returns 0, err. Otherwise, Int64 converts the
// reply to an int64 as follows:
//
// Reply type Result
// integer reply, nil
// bulk string parsed reply, nil
// nil 0, ErrNil
// other 0, error
func Int64(reply interface{}, err error) (int64, error) {
if err != nil {
return 0, err
}
switch reply := reply.(type) {
case int64:
return reply, nil
case []byte:
n, err := strconv.ParseInt(string(reply), 10, 64)
return n, err
case nil:
return 0, ErrNil
case Error:
return 0, reply
}
return 0, fmt.Errorf("redigo: unexpected type for Int64, got type %T", reply)
}
var errNegativeInt = errors.New("redigo: unexpected value for Uint64")
// Uint64 is a helper that converts a command reply to 64 bit integer. If err is
// not equal to nil, then Int returns 0, err. Otherwise, Int64 converts the
// reply to an int64 as follows:
//
// Reply type Result
// integer reply, nil
// bulk string parsed reply, nil
// nil 0, ErrNil
// other 0, error
func Uint64(reply interface{}, err error) (uint64, error) {
if err != nil {
return 0, err
}
switch reply := reply.(type) {
case int64:
if reply < 0 {
return 0, errNegativeInt
}
return uint64(reply), nil
case []byte:
n, err := strconv.ParseUint(string(reply), 10, 64)
return n, err
case nil:
return 0, ErrNil
case Error:
return 0, reply
}
return 0, fmt.Errorf("redigo: unexpected type for Uint64, got type %T", reply)
}
// Float64 is a helper that converts a command reply to 64 bit float. If err is
// not equal to nil, then Float64 returns 0, err. Otherwise, Float64 converts
// the reply to an int as follows:
//
// Reply type Result
// bulk string parsed reply, nil
// nil 0, ErrNil
// other 0, error
func Float64(reply interface{}, err error) (float64, error) {
if err != nil {
return 0, err
}
switch reply := reply.(type) {
case []byte:
n, err := strconv.ParseFloat(string(reply), 64)
return n, err
case nil:
return 0, ErrNil
case Error:
return 0, reply
}
return 0, fmt.Errorf("redigo: unexpected type for Float64, got type %T", reply)
}
// String is a helper that converts a command reply to a string. If err is not
// equal to nil, then String returns "", err. Otherwise String converts the
// reply to a string as follows:
//
// Reply type Result
// bulk string string(reply), nil
// simple string reply, nil
// nil "", ErrNil
// other "", error
func String(reply interface{}, err error) (string, error) {
if err != nil {
return "", err
}
switch reply := reply.(type) {
case []byte:
return string(reply), nil
case string:
return reply, nil
case nil:
return "", ErrNil
case Error:
return "", reply
}
return "", fmt.Errorf("redigo: unexpected type for String, got type %T", reply)
}
// Bytes is a helper that converts a command reply to a slice of bytes. If err
// is not equal to nil, then Bytes returns nil, err. Otherwise Bytes converts
// the reply to a slice of bytes as follows:
//
// Reply type Result
// bulk string reply, nil
// simple string []byte(reply), nil
// nil nil, ErrNil
// other nil, error
func Bytes(reply interface{}, err error) ([]byte, error) {
if err != nil {
return nil, err
}
switch reply := reply.(type) {
case []byte:
return reply, nil
case string:
return []byte(reply), nil
case nil:
return nil, ErrNil
case Error:
return nil, reply
}
return nil, fmt.Errorf("redigo: unexpected type for Bytes, got type %T", reply)
}
// Bool is a helper that converts a command reply to a boolean. If err is not
// equal to nil, then Bool returns false, err. Otherwise Bool converts the
// reply to boolean as follows:
//
// Reply type Result
// integer value != 0, nil
// bulk string strconv.ParseBool(reply)
// nil false, ErrNil
// other false, error
func Bool(reply interface{}, err error) (bool, error) {
if err != nil {
return false, err
}
switch reply := reply.(type) {
case int64:
return reply != 0, nil
case []byte:
return strconv.ParseBool(string(reply))
case nil:
return false, ErrNil
case Error:
return false, reply
}
return false, fmt.Errorf("redigo: unexpected type for Bool, got type %T", reply)
}
// MultiBulk is a helper that converts an array command reply to a []interface{}.
//
// Deprecated: Use Values instead.
func MultiBulk(reply interface{}, err error) ([]interface{}, error) { return Values(reply, err) }
// Values is a helper that converts an array command reply to a []interface{}.
// If err is not equal to nil, then Values returns nil, err. Otherwise, Values
// converts the reply as follows:
//
// Reply type Result
// array reply, nil
// nil nil, ErrNil
// other nil, error
func Values(reply interface{}, err error) ([]interface{}, error) {
if err != nil {
return nil, err
}
switch reply := reply.(type) {
case []interface{}:
return reply, nil
case nil:
return nil, ErrNil
case Error:
return nil, reply
}
return nil, fmt.Errorf("redigo: unexpected type for Values, got type %T", reply)
}
func sliceHelper(reply interface{}, err error, name string, makeSlice func(int), assign func(int, interface{}) error) error {
if err != nil {
return err
}
switch reply := reply.(type) {
case []interface{}:
makeSlice(len(reply))
for i := range reply {
if reply[i] == nil {
continue
}
if err := assign(i, reply[i]); err != nil {
return err
}
}
return nil
case nil:
return ErrNil
case Error:
return reply
}
return fmt.Errorf("redigo: unexpected type for %s, got type %T", name, reply)
}
// Float64s is a helper that converts an array command reply to a []float64. If
// err is not equal to nil, then Float64s returns nil, err. Nil array items are
// converted to 0 in the output slice. Floats64 returns an error if an array
// item is not a bulk string or nil.
func Float64s(reply interface{}, err error) ([]float64, error) {
var result []float64
err = sliceHelper(reply, err, "Float64s", func(n int) { result = make([]float64, n) }, func(i int, v interface{}) error {
p, ok := v.([]byte)
if !ok {
return fmt.Errorf("redigo: unexpected element type for Floats64, got type %T", v)
}
f, err := strconv.ParseFloat(string(p), 64)
result[i] = f
return err
})
return result, err
}
// Strings is a helper that converts an array command reply to a []string. If
// err is not equal to nil, then Strings returns nil, err. Nil array items are
// converted to "" in the output slice. Strings returns an error if an array
// item is not a bulk string or nil.
func Strings(reply interface{}, err error) ([]string, error) {
var result []string
err = sliceHelper(reply, err, "Strings", func(n int) { result = make([]string, n) }, func(i int, v interface{}) error {
switch v := v.(type) {
case string:
result[i] = v
return nil
case []byte:
result[i] = string(v)
return nil
default:
return fmt.Errorf("redigo: unexpected element type for Strings, got type %T", v)
}
})
return result, err
}
// ByteSlices is a helper that converts an array command reply to a [][]byte.
// If err is not equal to nil, then ByteSlices returns nil, err. Nil array
// items are stay nil. ByteSlices returns an error if an array item is not a
// bulk string or nil.
func ByteSlices(reply interface{}, err error) ([][]byte, error) {
var result [][]byte
err = sliceHelper(reply, err, "ByteSlices", func(n int) { result = make([][]byte, n) }, func(i int, v interface{}) error {
p, ok := v.([]byte)
if !ok {
return fmt.Errorf("redigo: unexpected element type for ByteSlices, got type %T", v)
}
result[i] = p
return nil
})
return result, err
}
// Int64s is a helper that converts an array command reply to a []int64.
// If err is not equal to nil, then Int64s returns nil, err. Nil array
// items are stay nil. Int64s returns an error if an array item is not a
// bulk string or nil.
func Int64s(reply interface{}, err error) ([]int64, error) {
var result []int64
err = sliceHelper(reply, err, "Int64s", func(n int) { result = make([]int64, n) }, func(i int, v interface{}) error {
switch v := v.(type) {
case int64:
result[i] = v
return nil
case []byte:
n, err := strconv.ParseInt(string(v), 10, 64)
result[i] = n
return err
default:
return fmt.Errorf("redigo: unexpected element type for Int64s, got type %T", v)
}
})
return result, err
}
// Ints is a helper that converts an array command reply to a []in.
// If err is not equal to nil, then Ints returns nil, err. Nil array
// items are stay nil. Ints returns an error if an array item is not a
// bulk string or nil.
func Ints(reply interface{}, err error) ([]int, error) {
var result []int
err = sliceHelper(reply, err, "Ints", func(n int) { result = make([]int, n) }, func(i int, v interface{}) error {
switch v := v.(type) {
case int64:
n := int(v)
if int64(n) != v {
return strconv.ErrRange
}
result[i] = n
return nil
case []byte:
n, err := strconv.Atoi(string(v))
result[i] = n
return err
default:
return fmt.Errorf("redigo: unexpected element type for Ints, got type %T", v)
}
})
return result, err
}
// StringMap is a helper that converts an array of strings (alternating key, value)
// into a map[string]string. The HGETALL and CONFIG GET commands return replies in this format.
// Requires an even number of values in result.
func StringMap(result interface{}, err error) (map[string]string, error) {
values, err := Values(result, err)
if err != nil {
return nil, err
}
if len(values)%2 != 0 {
return nil, errors.New("redigo: StringMap expects even number of values result")
}
m := make(map[string]string, len(values)/2)
for i := 0; i < len(values); i += 2 {
key, okKey := values[i].([]byte)
value, okValue := values[i+1].([]byte)
if !okKey || !okValue {
return nil, errors.New("redigo: StringMap key not a bulk string value")
}
m[string(key)] = string(value)
}
return m, nil
}
// IntMap is a helper that converts an array of strings (alternating key, value)
// into a map[string]int. The HGETALL commands return replies in this format.
// Requires an even number of values in result.
func IntMap(result interface{}, err error) (map[string]int, error) {
values, err := Values(result, err)
if err != nil {
return nil, err
}
if len(values)%2 != 0 {
return nil, errors.New("redigo: IntMap expects even number of values result")
}
m := make(map[string]int, len(values)/2)
for i := 0; i < len(values); i += 2 {
key, ok := values[i].([]byte)
if !ok {
return nil, errors.New("redigo: IntMap key not a bulk string value")
}
value, err := Int(values[i+1], nil)
if err != nil {
return nil, err
}
m[string(key)] = value
}
return m, nil
}
// Int64Map is a helper that converts an array of strings (alternating key, value)
// into a map[string]int64. The HGETALL commands return replies in this format.
// Requires an even number of values in result.
func Int64Map(result interface{}, err error) (map[string]int64, error) {
values, err := Values(result, err)
if err != nil {
return nil, err
}
if len(values)%2 != 0 {
return nil, errors.New("redigo: Int64Map expects even number of values result")
}
m := make(map[string]int64, len(values)/2)
for i := 0; i < len(values); i += 2 {
key, ok := values[i].([]byte)
if !ok {
return nil, errors.New("redigo: Int64Map key not a bulk string value")
}
value, err := Int64(values[i+1], nil)
if err != nil {
return nil, err
}
m[string(key)] = value
}
return m, nil
}
// Positions is a helper that converts an array of positions (lat, long)
// into a [][2]float64. The GEOPOS command returns replies in this format.
func Positions(result interface{}, err error) ([]*[2]float64, error) {
values, err := Values(result, err)
if err != nil {
return nil, err
}
positions := make([]*[2]float64, len(values))
for i := range values {
if values[i] == nil {
continue
}
p, ok := values[i].([]interface{})
if !ok {
return nil, fmt.Errorf("redigo: unexpected element type for interface slice, got type %T", values[i])
}
if len(p) != 2 {
return nil, fmt.Errorf("redigo: unexpected number of values for a member position, got %d", len(p))
}
lat, err := Float64(p[0], nil)
if err != nil {
return nil, err
}
long, err := Float64(p[1], nil)
if err != nil {
return nil, err
}
positions[i] = &[2]float64{lat, long}
}
return positions, nil
}

209
vendor/github.com/garyburd/redigo/redis/reply_test.go generated vendored
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@ -1,209 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis_test
import (
"fmt"
"reflect"
"testing"
"github.com/garyburd/redigo/redis"
)
type valueError struct {
v interface{}
err error
}
func ve(v interface{}, err error) valueError {
return valueError{v, err}
}
var replyTests = []struct {
name interface{}
actual valueError
expected valueError
}{
{
"ints([[]byte, []byte])",
ve(redis.Ints([]interface{}{[]byte("4"), []byte("5")}, nil)),
ve([]int{4, 5}, nil),
},
{
"ints([nt64, int64])",
ve(redis.Ints([]interface{}{int64(4), int64(5)}, nil)),
ve([]int{4, 5}, nil),
},
{
"ints([[]byte, nil, []byte])",
ve(redis.Ints([]interface{}{[]byte("4"), nil, []byte("5")}, nil)),
ve([]int{4, 0, 5}, nil),
},
{
"ints(nil)",
ve(redis.Ints(nil, nil)),
ve([]int(nil), redis.ErrNil),
},
{
"int64s([[]byte, []byte])",
ve(redis.Int64s([]interface{}{[]byte("4"), []byte("5")}, nil)),
ve([]int64{4, 5}, nil),
},
{
"int64s([int64, int64])",
ve(redis.Int64s([]interface{}{int64(4), int64(5)}, nil)),
ve([]int64{4, 5}, nil),
},
{
"strings([[]byte, []bytev2])",
ve(redis.Strings([]interface{}{[]byte("v1"), []byte("v2")}, nil)),
ve([]string{"v1", "v2"}, nil),
},
{
"strings([string, string])",
ve(redis.Strings([]interface{}{"v1", "v2"}, nil)),
ve([]string{"v1", "v2"}, nil),
},
{
"byteslices([v1, v2])",
ve(redis.ByteSlices([]interface{}{[]byte("v1"), []byte("v2")}, nil)),
ve([][]byte{[]byte("v1"), []byte("v2")}, nil),
},
{
"float64s([v1, v2])",
ve(redis.Float64s([]interface{}{[]byte("1.234"), []byte("5.678")}, nil)),
ve([]float64{1.234, 5.678}, nil),
},
{
"values([v1, v2])",
ve(redis.Values([]interface{}{[]byte("v1"), []byte("v2")}, nil)),
ve([]interface{}{[]byte("v1"), []byte("v2")}, nil),
},
{
"values(nil)",
ve(redis.Values(nil, nil)),
ve([]interface{}(nil), redis.ErrNil),
},
{
"float64(1.0)",
ve(redis.Float64([]byte("1.0"), nil)),
ve(float64(1.0), nil),
},
{
"float64(nil)",
ve(redis.Float64(nil, nil)),
ve(float64(0.0), redis.ErrNil),
},
{
"uint64(1)",
ve(redis.Uint64(int64(1), nil)),
ve(uint64(1), nil),
},
{
"uint64(-1)",
ve(redis.Uint64(int64(-1), nil)),
ve(uint64(0), redis.ErrNegativeInt),
},
{
"positions([[1, 2], nil, [3, 4]])",
ve(redis.Positions([]interface{}{[]interface{}{[]byte("1"), []byte("2")}, nil, []interface{}{[]byte("3"), []byte("4")}}, nil)),
ve([]*[2]float64{{1.0, 2.0}, nil, {3.0, 4.0}}, nil),
},
}
func TestReply(t *testing.T) {
for _, rt := range replyTests {
if rt.actual.err != rt.expected.err {
t.Errorf("%s returned err %v, want %v", rt.name, rt.actual.err, rt.expected.err)
continue
}
if !reflect.DeepEqual(rt.actual.v, rt.expected.v) {
t.Errorf("%s=%+v, want %+v", rt.name, rt.actual.v, rt.expected.v)
}
}
}
// dial wraps DialDefaultServer() with a more suitable function name for examples.
func dial() (redis.Conn, error) {
return redis.DialDefaultServer()
}
// serverAddr wraps DefaultServerAddr() with a more suitable function name for examples.
func serverAddr() (string, error) {
return redis.DefaultServerAddr()
}
func ExampleBool() {
c, err := dial()
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
c.Do("SET", "foo", 1)
exists, _ := redis.Bool(c.Do("EXISTS", "foo"))
fmt.Printf("%#v\n", exists)
// Output:
// true
}
func ExampleInt() {
c, err := dial()
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
c.Do("SET", "k1", 1)
n, _ := redis.Int(c.Do("GET", "k1"))
fmt.Printf("%#v\n", n)
n, _ = redis.Int(c.Do("INCR", "k1"))
fmt.Printf("%#v\n", n)
// Output:
// 1
// 2
}
func ExampleInts() {
c, err := dial()
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
c.Do("SADD", "set_with_integers", 4, 5, 6)
ints, _ := redis.Ints(c.Do("SMEMBERS", "set_with_integers"))
fmt.Printf("%#v\n", ints)
// Output:
// []int{4, 5, 6}
}
func ExampleString() {
c, err := dial()
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
c.Do("SET", "hello", "world")
s, err := redis.String(c.Do("GET", "hello"))
fmt.Printf("%#v\n", s)
// Output:
// "world"
}

585
vendor/github.com/garyburd/redigo/redis/scan.go generated vendored
View File

@ -1,585 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis
import (
"errors"
"fmt"
"reflect"
"strconv"
"strings"
"sync"
)
func ensureLen(d reflect.Value, n int) {
if n > d.Cap() {
d.Set(reflect.MakeSlice(d.Type(), n, n))
} else {
d.SetLen(n)
}
}
func cannotConvert(d reflect.Value, s interface{}) error {
var sname string
switch s.(type) {
case string:
sname = "Redis simple string"
case Error:
sname = "Redis error"
case int64:
sname = "Redis integer"
case []byte:
sname = "Redis bulk string"
case []interface{}:
sname = "Redis array"
default:
sname = reflect.TypeOf(s).String()
}
return fmt.Errorf("cannot convert from %s to %s", sname, d.Type())
}
func convertAssignBulkString(d reflect.Value, s []byte) (err error) {
switch d.Type().Kind() {
case reflect.Float32, reflect.Float64:
var x float64
x, err = strconv.ParseFloat(string(s), d.Type().Bits())
d.SetFloat(x)
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
var x int64
x, err = strconv.ParseInt(string(s), 10, d.Type().Bits())
d.SetInt(x)
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
var x uint64
x, err = strconv.ParseUint(string(s), 10, d.Type().Bits())
d.SetUint(x)
case reflect.Bool:
var x bool
x, err = strconv.ParseBool(string(s))
d.SetBool(x)
case reflect.String:
d.SetString(string(s))
case reflect.Slice:
if d.Type().Elem().Kind() != reflect.Uint8 {
err = cannotConvert(d, s)
} else {
d.SetBytes(s)
}
default:
err = cannotConvert(d, s)
}
return
}
func convertAssignInt(d reflect.Value, s int64) (err error) {
switch d.Type().Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
d.SetInt(s)
if d.Int() != s {
err = strconv.ErrRange
d.SetInt(0)
}
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
if s < 0 {
err = strconv.ErrRange
} else {
x := uint64(s)
d.SetUint(x)
if d.Uint() != x {
err = strconv.ErrRange
d.SetUint(0)
}
}
case reflect.Bool:
d.SetBool(s != 0)
default:
err = cannotConvert(d, s)
}
return
}
func convertAssignValue(d reflect.Value, s interface{}) (err error) {
if d.Kind() != reflect.Ptr {
if d.CanAddr() {
d2 := d.Addr()
if d2.CanInterface() {
if scanner, ok := d2.Interface().(Scanner); ok {
return scanner.RedisScan(s)
}
}
}
} else if d.CanInterface() {
// Already a reflect.Ptr
if d.IsNil() {
d.Set(reflect.New(d.Type().Elem()))
}
if scanner, ok := d.Interface().(Scanner); ok {
return scanner.RedisScan(s)
}
}
switch s := s.(type) {
case []byte:
err = convertAssignBulkString(d, s)
case int64:
err = convertAssignInt(d, s)
default:
err = cannotConvert(d, s)
}
return err
}
func convertAssignArray(d reflect.Value, s []interface{}) error {
if d.Type().Kind() != reflect.Slice {
return cannotConvert(d, s)
}
ensureLen(d, len(s))
for i := 0; i < len(s); i++ {
if err := convertAssignValue(d.Index(i), s[i]); err != nil {
return err
}
}
return nil
}
func convertAssign(d interface{}, s interface{}) (err error) {
if scanner, ok := d.(Scanner); ok {
return scanner.RedisScan(s)
}
// Handle the most common destination types using type switches and
// fall back to reflection for all other types.
switch s := s.(type) {
case nil:
// ignore
case []byte:
switch d := d.(type) {
case *string:
*d = string(s)
case *int:
*d, err = strconv.Atoi(string(s))
case *bool:
*d, err = strconv.ParseBool(string(s))
case *[]byte:
*d = s
case *interface{}:
*d = s
case nil:
// skip value
default:
if d := reflect.ValueOf(d); d.Type().Kind() != reflect.Ptr {
err = cannotConvert(d, s)
} else {
err = convertAssignBulkString(d.Elem(), s)
}
}
case int64:
switch d := d.(type) {
case *int:
x := int(s)
if int64(x) != s {
err = strconv.ErrRange
x = 0
}
*d = x
case *bool:
*d = s != 0
case *interface{}:
*d = s
case nil:
// skip value
default:
if d := reflect.ValueOf(d); d.Type().Kind() != reflect.Ptr {
err = cannotConvert(d, s)
} else {
err = convertAssignInt(d.Elem(), s)
}
}
case string:
switch d := d.(type) {
case *string:
*d = s
case *interface{}:
*d = s
case nil:
// skip value
default:
err = cannotConvert(reflect.ValueOf(d), s)
}
case []interface{}:
switch d := d.(type) {
case *[]interface{}:
*d = s
case *interface{}:
*d = s
case nil:
// skip value
default:
if d := reflect.ValueOf(d); d.Type().Kind() != reflect.Ptr {
err = cannotConvert(d, s)
} else {
err = convertAssignArray(d.Elem(), s)
}
}
case Error:
err = s
default:
err = cannotConvert(reflect.ValueOf(d), s)
}
return
}
// Scan copies from src to the values pointed at by dest.
//
// Scan uses RedisScan if available otherwise:
//
// The values pointed at by dest must be an integer, float, boolean, string,
// []byte, interface{} or slices of these types. Scan uses the standard strconv
// package to convert bulk strings to numeric and boolean types.
//
// If a dest value is nil, then the corresponding src value is skipped.
//
// If a src element is nil, then the corresponding dest value is not modified.
//
// To enable easy use of Scan in a loop, Scan returns the slice of src
// following the copied values.
func Scan(src []interface{}, dest ...interface{}) ([]interface{}, error) {
if len(src) < len(dest) {
return nil, errors.New("redigo.Scan: array short")
}
var err error
for i, d := range dest {
err = convertAssign(d, src[i])
if err != nil {
err = fmt.Errorf("redigo.Scan: cannot assign to dest %d: %v", i, err)
break
}
}
return src[len(dest):], err
}
type fieldSpec struct {
name string
index []int
omitEmpty bool
}
type structSpec struct {
m map[string]*fieldSpec
l []*fieldSpec
}
func (ss *structSpec) fieldSpec(name []byte) *fieldSpec {
return ss.m[string(name)]
}
func compileStructSpec(t reflect.Type, depth map[string]int, index []int, ss *structSpec) {
for i := 0; i < t.NumField(); i++ {
f := t.Field(i)
switch {
case f.PkgPath != "" && !f.Anonymous:
// Ignore unexported fields.
case f.Anonymous:
// TODO: Handle pointers. Requires change to decoder and
// protection against infinite recursion.
if f.Type.Kind() == reflect.Struct {
compileStructSpec(f.Type, depth, append(index, i), ss)
}
default:
fs := &fieldSpec{name: f.Name}
tag := f.Tag.Get("redis")
p := strings.Split(tag, ",")
if len(p) > 0 {
if p[0] == "-" {
continue
}
if len(p[0]) > 0 {
fs.name = p[0]
}
for _, s := range p[1:] {
switch s {
case "omitempty":
fs.omitEmpty = true
default:
panic(fmt.Errorf("redigo: unknown field tag %s for type %s", s, t.Name()))
}
}
}
d, found := depth[fs.name]
if !found {
d = 1 << 30
}
switch {
case len(index) == d:
// At same depth, remove from result.
delete(ss.m, fs.name)
j := 0
for i := 0; i < len(ss.l); i++ {
if fs.name != ss.l[i].name {
ss.l[j] = ss.l[i]
j += 1
}
}
ss.l = ss.l[:j]
case len(index) < d:
fs.index = make([]int, len(index)+1)
copy(fs.index, index)
fs.index[len(index)] = i
depth[fs.name] = len(index)
ss.m[fs.name] = fs
ss.l = append(ss.l, fs)
}
}
}
}
var (
structSpecMutex sync.RWMutex
structSpecCache = make(map[reflect.Type]*structSpec)
defaultFieldSpec = &fieldSpec{}
)
func structSpecForType(t reflect.Type) *structSpec {
structSpecMutex.RLock()
ss, found := structSpecCache[t]
structSpecMutex.RUnlock()
if found {
return ss
}
structSpecMutex.Lock()
defer structSpecMutex.Unlock()
ss, found = structSpecCache[t]
if found {
return ss
}
ss = &structSpec{m: make(map[string]*fieldSpec)}
compileStructSpec(t, make(map[string]int), nil, ss)
structSpecCache[t] = ss
return ss
}
var errScanStructValue = errors.New("redigo.ScanStruct: value must be non-nil pointer to a struct")
// ScanStruct scans alternating names and values from src to a struct. The
// HGETALL and CONFIG GET commands return replies in this format.
//
// ScanStruct uses exported field names to match values in the response. Use
// 'redis' field tag to override the name:
//
// Field int `redis:"myName"`
//
// Fields with the tag redis:"-" are ignored.
//
// Each field uses RedisScan if available otherwise:
// Integer, float, boolean, string and []byte fields are supported. Scan uses the
// standard strconv package to convert bulk string values to numeric and
// boolean types.
//
// If a src element is nil, then the corresponding field is not modified.
func ScanStruct(src []interface{}, dest interface{}) error {
d := reflect.ValueOf(dest)
if d.Kind() != reflect.Ptr || d.IsNil() {
return errScanStructValue
}
d = d.Elem()
if d.Kind() != reflect.Struct {
return errScanStructValue
}
ss := structSpecForType(d.Type())
if len(src)%2 != 0 {
return errors.New("redigo.ScanStruct: number of values not a multiple of 2")
}
for i := 0; i < len(src); i += 2 {
s := src[i+1]
if s == nil {
continue
}
name, ok := src[i].([]byte)
if !ok {
return fmt.Errorf("redigo.ScanStruct: key %d not a bulk string value", i)
}
fs := ss.fieldSpec(name)
if fs == nil {
continue
}
if err := convertAssignValue(d.FieldByIndex(fs.index), s); err != nil {
return fmt.Errorf("redigo.ScanStruct: cannot assign field %s: %v", fs.name, err)
}
}
return nil
}
var (
errScanSliceValue = errors.New("redigo.ScanSlice: dest must be non-nil pointer to a struct")
)
// ScanSlice scans src to the slice pointed to by dest. The elements the dest
// slice must be integer, float, boolean, string, struct or pointer to struct
// values.
//
// Struct fields must be integer, float, boolean or string values. All struct
// fields are used unless a subset is specified using fieldNames.
func ScanSlice(src []interface{}, dest interface{}, fieldNames ...string) error {
d := reflect.ValueOf(dest)
if d.Kind() != reflect.Ptr || d.IsNil() {
return errScanSliceValue
}
d = d.Elem()
if d.Kind() != reflect.Slice {
return errScanSliceValue
}
isPtr := false
t := d.Type().Elem()
if t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Struct {
isPtr = true
t = t.Elem()
}
if t.Kind() != reflect.Struct {
ensureLen(d, len(src))
for i, s := range src {
if s == nil {
continue
}
if err := convertAssignValue(d.Index(i), s); err != nil {
return fmt.Errorf("redigo.ScanSlice: cannot assign element %d: %v", i, err)
}
}
return nil
}
ss := structSpecForType(t)
fss := ss.l
if len(fieldNames) > 0 {
fss = make([]*fieldSpec, len(fieldNames))
for i, name := range fieldNames {
fss[i] = ss.m[name]
if fss[i] == nil {
return fmt.Errorf("redigo.ScanSlice: ScanSlice bad field name %s", name)
}
}
}
if len(fss) == 0 {
return errors.New("redigo.ScanSlice: no struct fields")
}
n := len(src) / len(fss)
if n*len(fss) != len(src) {
return errors.New("redigo.ScanSlice: length not a multiple of struct field count")
}
ensureLen(d, n)
for i := 0; i < n; i++ {
d := d.Index(i)
if isPtr {
if d.IsNil() {
d.Set(reflect.New(t))
}
d = d.Elem()
}
for j, fs := range fss {
s := src[i*len(fss)+j]
if s == nil {
continue
}
if err := convertAssignValue(d.FieldByIndex(fs.index), s); err != nil {
return fmt.Errorf("redigo.ScanSlice: cannot assign element %d to field %s: %v", i*len(fss)+j, fs.name, err)
}
}
}
return nil
}
// Args is a helper for constructing command arguments from structured values.
type Args []interface{}
// Add returns the result of appending value to args.
func (args Args) Add(value ...interface{}) Args {
return append(args, value...)
}
// AddFlat returns the result of appending the flattened value of v to args.
//
// Maps are flattened by appending the alternating keys and map values to args.
//
// Slices are flattened by appending the slice elements to args.
//
// Structs are flattened by appending the alternating names and values of
// exported fields to args. If v is a nil struct pointer, then nothing is
// appended. The 'redis' field tag overrides struct field names. See ScanStruct
// for more information on the use of the 'redis' field tag.
//
// Other types are appended to args as is.
func (args Args) AddFlat(v interface{}) Args {
rv := reflect.ValueOf(v)
switch rv.Kind() {
case reflect.Struct:
args = flattenStruct(args, rv)
case reflect.Slice:
for i := 0; i < rv.Len(); i++ {
args = append(args, rv.Index(i).Interface())
}
case reflect.Map:
for _, k := range rv.MapKeys() {
args = append(args, k.Interface(), rv.MapIndex(k).Interface())
}
case reflect.Ptr:
if rv.Type().Elem().Kind() == reflect.Struct {
if !rv.IsNil() {
args = flattenStruct(args, rv.Elem())
}
} else {
args = append(args, v)
}
default:
args = append(args, v)
}
return args
}
func flattenStruct(args Args, v reflect.Value) Args {
ss := structSpecForType(v.Type())
for _, fs := range ss.l {
fv := v.FieldByIndex(fs.index)
if fs.omitEmpty {
var empty = false
switch fv.Kind() {
case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
empty = fv.Len() == 0
case reflect.Bool:
empty = !fv.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
empty = fv.Int() == 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
empty = fv.Uint() == 0
case reflect.Float32, reflect.Float64:
empty = fv.Float() == 0
case reflect.Interface, reflect.Ptr:
empty = fv.IsNil()
}
if empty {
continue
}
}
args = append(args, fs.name, fv.Interface())
}
return args
}

494
vendor/github.com/garyburd/redigo/redis/scan_test.go generated vendored
View File

@ -1,494 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis_test
import (
"fmt"
"math"
"reflect"
"testing"
"time"
"github.com/garyburd/redigo/redis"
)
type durationScan struct {
time.Duration `redis:"sd"`
}
func (t *durationScan) RedisScan(src interface{}) (err error) {
if t == nil {
return fmt.Errorf("nil pointer")
}
switch src := src.(type) {
case string:
t.Duration, err = time.ParseDuration(src)
case []byte:
t.Duration, err = time.ParseDuration(string(src))
case int64:
t.Duration = time.Duration(src)
default:
err = fmt.Errorf("cannot convert from %T to %T", src, t)
}
return err
}
var scanConversionTests = []struct {
src interface{}
dest interface{}
}{
{[]byte("-inf"), math.Inf(-1)},
{[]byte("+inf"), math.Inf(1)},
{[]byte("0"), float64(0)},
{[]byte("3.14159"), float64(3.14159)},
{[]byte("3.14"), float32(3.14)},
{[]byte("-100"), int(-100)},
{[]byte("101"), int(101)},
{int64(102), int(102)},
{[]byte("103"), uint(103)},
{int64(104), uint(104)},
{[]byte("105"), int8(105)},
{int64(106), int8(106)},
{[]byte("107"), uint8(107)},
{int64(108), uint8(108)},
{[]byte("0"), false},
{int64(0), false},
{[]byte("f"), false},
{[]byte("1"), true},
{int64(1), true},
{[]byte("t"), true},
{"hello", "hello"},
{[]byte("hello"), "hello"},
{[]byte("world"), []byte("world")},
{[]interface{}{[]byte("foo")}, []interface{}{[]byte("foo")}},
{[]interface{}{[]byte("foo")}, []string{"foo"}},
{[]interface{}{[]byte("hello"), []byte("world")}, []string{"hello", "world"}},
{[]interface{}{[]byte("bar")}, [][]byte{[]byte("bar")}},
{[]interface{}{[]byte("1")}, []int{1}},
{[]interface{}{[]byte("1"), []byte("2")}, []int{1, 2}},
{[]interface{}{[]byte("1"), []byte("2")}, []float64{1, 2}},
{[]interface{}{[]byte("1")}, []byte{1}},
{[]interface{}{[]byte("1")}, []bool{true}},
{"1m", durationScan{Duration: time.Minute}},
{[]byte("1m"), durationScan{Duration: time.Minute}},
{time.Minute.Nanoseconds(), durationScan{Duration: time.Minute}},
{[]interface{}{[]byte("1m")}, []durationScan{{Duration: time.Minute}}},
{[]interface{}{[]byte("1m")}, []*durationScan{{Duration: time.Minute}}},
}
func TestScanConversion(t *testing.T) {
for _, tt := range scanConversionTests {
values := []interface{}{tt.src}
dest := reflect.New(reflect.TypeOf(tt.dest))
values, err := redis.Scan(values, dest.Interface())
if err != nil {
t.Errorf("Scan(%v) returned error %v", tt, err)
continue
}
if !reflect.DeepEqual(tt.dest, dest.Elem().Interface()) {
t.Errorf("Scan(%v) returned %v, want %v", tt, dest.Elem().Interface(), tt.dest)
}
}
}
var scanConversionErrorTests = []struct {
src interface{}
dest interface{}
}{
{[]byte("1234"), byte(0)},
{int64(1234), byte(0)},
{[]byte("-1"), byte(0)},
{int64(-1), byte(0)},
{[]byte("junk"), false},
{redis.Error("blah"), false},
{redis.Error("blah"), durationScan{Duration: time.Minute}},
{"invalid", durationScan{Duration: time.Minute}},
}
func TestScanConversionError(t *testing.T) {
for _, tt := range scanConversionErrorTests {
values := []interface{}{tt.src}
dest := reflect.New(reflect.TypeOf(tt.dest))
values, err := redis.Scan(values, dest.Interface())
if err == nil {
t.Errorf("Scan(%v) did not return error", tt)
}
}
}
func ExampleScan() {
c, err := dial()
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
c.Send("HMSET", "album:1", "title", "Red", "rating", 5)
c.Send("HMSET", "album:2", "title", "Earthbound", "rating", 1)
c.Send("HMSET", "album:3", "title", "Beat")
c.Send("LPUSH", "albums", "1")
c.Send("LPUSH", "albums", "2")
c.Send("LPUSH", "albums", "3")
values, err := redis.Values(c.Do("SORT", "albums",
"BY", "album:*->rating",
"GET", "album:*->title",
"GET", "album:*->rating"))
if err != nil {
fmt.Println(err)
return
}
for len(values) > 0 {
var title string
rating := -1 // initialize to illegal value to detect nil.
values, err = redis.Scan(values, &title, &rating)
if err != nil {
fmt.Println(err)
return
}
if rating == -1 {
fmt.Println(title, "not-rated")
} else {
fmt.Println(title, rating)
}
}
// Output:
// Beat not-rated
// Earthbound 1
// Red 5
}
type s0 struct {
X int
Y int `redis:"y"`
Bt bool
}
type s1 struct {
X int `redis:"-"`
I int `redis:"i"`
U uint `redis:"u"`
S string `redis:"s"`
P []byte `redis:"p"`
B bool `redis:"b"`
Bt bool
Bf bool
s0
Sd durationScan `redis:"sd"`
Sdp *durationScan `redis:"sdp"`
}
var scanStructTests = []struct {
title string
reply []string
value interface{}
}{
{"basic",
[]string{
"i", "-1234",
"u", "5678",
"s", "hello",
"p", "world",
"b", "t",
"Bt", "1",
"Bf", "0",
"X", "123",
"y", "456",
"sd", "1m",
"sdp", "1m",
},
&s1{
I: -1234,
U: 5678,
S: "hello",
P: []byte("world"),
B: true,
Bt: true,
Bf: false,
s0: s0{X: 123, Y: 456},
Sd: durationScan{Duration: time.Minute},
Sdp: &durationScan{Duration: time.Minute},
},
},
}
func TestScanStruct(t *testing.T) {
for _, tt := range scanStructTests {
var reply []interface{}
for _, v := range tt.reply {
reply = append(reply, []byte(v))
}
value := reflect.New(reflect.ValueOf(tt.value).Type().Elem())
if err := redis.ScanStruct(reply, value.Interface()); err != nil {
t.Fatalf("ScanStruct(%s) returned error %v", tt.title, err)
}
if !reflect.DeepEqual(value.Interface(), tt.value) {
t.Fatalf("ScanStruct(%s) returned %v, want %v", tt.title, value.Interface(), tt.value)
}
}
}
func TestBadScanStructArgs(t *testing.T) {
x := []interface{}{"A", "b"}
test := func(v interface{}) {
if err := redis.ScanStruct(x, v); err == nil {
t.Errorf("Expect error for ScanStruct(%T, %T)", x, v)
}
}
test(nil)
var v0 *struct{}
test(v0)
var v1 int
test(&v1)
x = x[:1]
v2 := struct{ A string }{}
test(&v2)
}
var scanSliceTests = []struct {
src []interface{}
fieldNames []string
ok bool
dest interface{}
}{
{
[]interface{}{[]byte("1"), nil, []byte("-1")},
nil,
true,
[]int{1, 0, -1},
},
{
[]interface{}{[]byte("1"), nil, []byte("2")},
nil,
true,
[]uint{1, 0, 2},
},
{
[]interface{}{[]byte("-1")},
nil,
false,
[]uint{1},
},
{
[]interface{}{[]byte("hello"), nil, []byte("world")},
nil,
true,
[][]byte{[]byte("hello"), nil, []byte("world")},
},
{
[]interface{}{[]byte("hello"), nil, []byte("world")},
nil,
true,
[]string{"hello", "", "world"},
},
{
[]interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")},
nil,
true,
[]struct{ A, B string }{{"a1", "b1"}, {"a2", "b2"}},
},
{
[]interface{}{[]byte("a1"), []byte("b1")},
nil,
false,
[]struct{ A, B, C string }{{"a1", "b1", ""}},
},
{
[]interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")},
nil,
true,
[]*struct{ A, B string }{{A: "a1", B: "b1"}, {A: "a2", B: "b2"}},
},
{
[]interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")},
[]string{"A", "B"},
true,
[]struct{ A, C, B string }{{"a1", "", "b1"}, {"a2", "", "b2"}},
},
{
[]interface{}{[]byte("a1"), []byte("b1"), []byte("a2"), []byte("b2")},
nil,
false,
[]struct{}{},
},
}
func TestScanSlice(t *testing.T) {
for _, tt := range scanSliceTests {
typ := reflect.ValueOf(tt.dest).Type()
dest := reflect.New(typ)
err := redis.ScanSlice(tt.src, dest.Interface(), tt.fieldNames...)
if tt.ok != (err == nil) {
t.Errorf("ScanSlice(%v, []%s, %v) returned error %v", tt.src, typ, tt.fieldNames, err)
continue
}
if tt.ok && !reflect.DeepEqual(dest.Elem().Interface(), tt.dest) {
t.Errorf("ScanSlice(src, []%s) returned %#v, want %#v", typ, dest.Elem().Interface(), tt.dest)
}
}
}
func ExampleScanSlice() {
c, err := dial()
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
c.Send("HMSET", "album:1", "title", "Red", "rating", 5)
c.Send("HMSET", "album:2", "title", "Earthbound", "rating", 1)
c.Send("HMSET", "album:3", "title", "Beat", "rating", 4)
c.Send("LPUSH", "albums", "1")
c.Send("LPUSH", "albums", "2")
c.Send("LPUSH", "albums", "3")
values, err := redis.Values(c.Do("SORT", "albums",
"BY", "album:*->rating",
"GET", "album:*->title",
"GET", "album:*->rating"))
if err != nil {
fmt.Println(err)
return
}
var albums []struct {
Title string
Rating int
}
if err := redis.ScanSlice(values, &albums); err != nil {
fmt.Println(err)
return
}
fmt.Printf("%v\n", albums)
// Output:
// [{Earthbound 1} {Beat 4} {Red 5}]
}
var argsTests = []struct {
title string
actual redis.Args
expected redis.Args
}{
{"struct ptr",
redis.Args{}.AddFlat(&struct {
I int `redis:"i"`
U uint `redis:"u"`
S string `redis:"s"`
P []byte `redis:"p"`
M map[string]string `redis:"m"`
Bt bool
Bf bool
}{
-1234, 5678, "hello", []byte("world"), map[string]string{"hello": "world"}, true, false,
}),
redis.Args{"i", int(-1234), "u", uint(5678), "s", "hello", "p", []byte("world"), "m", map[string]string{"hello": "world"}, "Bt", true, "Bf", false},
},
{"struct",
redis.Args{}.AddFlat(struct{ I int }{123}),
redis.Args{"I", 123},
},
{"slice",
redis.Args{}.Add(1).AddFlat([]string{"a", "b", "c"}).Add(2),
redis.Args{1, "a", "b", "c", 2},
},
{"struct omitempty",
redis.Args{}.AddFlat(&struct {
I int `redis:"i,omitempty"`
U uint `redis:"u,omitempty"`
S string `redis:"s,omitempty"`
P []byte `redis:"p,omitempty"`
M map[string]string `redis:"m,omitempty"`
Bt bool `redis:"Bt,omitempty"`
Bf bool `redis:"Bf,omitempty"`
}{
0, 0, "", []byte{}, map[string]string{}, true, false,
}),
redis.Args{"Bt", true},
},
}
func TestArgs(t *testing.T) {
for _, tt := range argsTests {
if !reflect.DeepEqual(tt.actual, tt.expected) {
t.Fatalf("%s is %v, want %v", tt.title, tt.actual, tt.expected)
}
}
}
func ExampleArgs() {
c, err := dial()
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
var p1, p2 struct {
Title string `redis:"title"`
Author string `redis:"author"`
Body string `redis:"body"`
}
p1.Title = "Example"
p1.Author = "Gary"
p1.Body = "Hello"
if _, err := c.Do("HMSET", redis.Args{}.Add("id1").AddFlat(&p1)...); err != nil {
fmt.Println(err)
return
}
m := map[string]string{
"title": "Example2",
"author": "Steve",
"body": "Map",
}
if _, err := c.Do("HMSET", redis.Args{}.Add("id2").AddFlat(m)...); err != nil {
fmt.Println(err)
return
}
for _, id := range []string{"id1", "id2"} {
v, err := redis.Values(c.Do("HGETALL", id))
if err != nil {
fmt.Println(err)
return
}
if err := redis.ScanStruct(v, &p2); err != nil {
fmt.Println(err)
return
}
fmt.Printf("%+v\n", p2)
}
// Output:
// {Title:Example Author:Gary Body:Hello}
// {Title:Example2 Author:Steve Body:Map}
}

91
vendor/github.com/garyburd/redigo/redis/script.go generated vendored
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@ -1,91 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis
import (
"crypto/sha1"
"encoding/hex"
"io"
"strings"
)
// Script encapsulates the source, hash and key count for a Lua script. See
// http://redis.io/commands/eval for information on scripts in Redis.
type Script struct {
keyCount int
src string
hash string
}
// NewScript returns a new script object. If keyCount is greater than or equal
// to zero, then the count is automatically inserted in the EVAL command
// argument list. If keyCount is less than zero, then the application supplies
// the count as the first value in the keysAndArgs argument to the Do, Send and
// SendHash methods.
func NewScript(keyCount int, src string) *Script {
h := sha1.New()
io.WriteString(h, src)
return &Script{keyCount, src, hex.EncodeToString(h.Sum(nil))}
}
func (s *Script) args(spec string, keysAndArgs []interface{}) []interface{} {
var args []interface{}
if s.keyCount < 0 {
args = make([]interface{}, 1+len(keysAndArgs))
args[0] = spec
copy(args[1:], keysAndArgs)
} else {
args = make([]interface{}, 2+len(keysAndArgs))
args[0] = spec
args[1] = s.keyCount
copy(args[2:], keysAndArgs)
}
return args
}
// Hash returns the script hash.
func (s *Script) Hash() string {
return s.hash
}
// Do evaluates the script. Under the covers, Do optimistically evaluates the
// script using the EVALSHA command. If the command fails because the script is
// not loaded, then Do evaluates the script using the EVAL command (thus
// causing the script to load).
func (s *Script) Do(c Conn, keysAndArgs ...interface{}) (interface{}, error) {
v, err := c.Do("EVALSHA", s.args(s.hash, keysAndArgs)...)
if e, ok := err.(Error); ok && strings.HasPrefix(string(e), "NOSCRIPT ") {
v, err = c.Do("EVAL", s.args(s.src, keysAndArgs)...)
}
return v, err
}
// SendHash evaluates the script without waiting for the reply. The script is
// evaluated with the EVALSHA command. The application must ensure that the
// script is loaded by a previous call to Send, Do or Load methods.
func (s *Script) SendHash(c Conn, keysAndArgs ...interface{}) error {
return c.Send("EVALSHA", s.args(s.hash, keysAndArgs)...)
}
// Send evaluates the script without waiting for the reply.
func (s *Script) Send(c Conn, keysAndArgs ...interface{}) error {
return c.Send("EVAL", s.args(s.src, keysAndArgs)...)
}
// Load loads the script without evaluating it.
func (s *Script) Load(c Conn) error {
_, err := c.Do("SCRIPT", "LOAD", s.src)
return err
}

100
vendor/github.com/garyburd/redigo/redis/script_test.go generated vendored
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@ -1,100 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis_test
import (
"fmt"
"reflect"
"testing"
"time"
"github.com/garyburd/redigo/redis"
)
var (
// These variables are declared at package level to remove distracting
// details from the examples.
c redis.Conn
reply interface{}
err error
)
func ExampleScript() {
// Initialize a package-level variable with a script.
var getScript = redis.NewScript(1, `return redis.call('get', KEYS[1])`)
// In a function, use the script Do method to evaluate the script. The Do
// method optimistically uses the EVALSHA command. If the script is not
// loaded, then the Do method falls back to the EVAL command.
reply, err = getScript.Do(c, "foo")
}
func TestScript(t *testing.T) {
c, err := redis.DialDefaultServer()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
defer c.Close()
// To test fall back in Do, we make script unique by adding comment with current time.
script := fmt.Sprintf("--%d\nreturn {KEYS[1],KEYS[2],ARGV[1],ARGV[2]}", time.Now().UnixNano())
s := redis.NewScript(2, script)
reply := []interface{}{[]byte("key1"), []byte("key2"), []byte("arg1"), []byte("arg2")}
v, err := s.Do(c, "key1", "key2", "arg1", "arg2")
if err != nil {
t.Errorf("s.Do(c, ...) returned %v", err)
}
if !reflect.DeepEqual(v, reply) {
t.Errorf("s.Do(c, ..); = %v, want %v", v, reply)
}
err = s.Load(c)
if err != nil {
t.Errorf("s.Load(c) returned %v", err)
}
err = s.SendHash(c, "key1", "key2", "arg1", "arg2")
if err != nil {
t.Errorf("s.SendHash(c, ...) returned %v", err)
}
err = c.Flush()
if err != nil {
t.Errorf("c.Flush() returned %v", err)
}
v, err = c.Receive()
if !reflect.DeepEqual(v, reply) {
t.Errorf("s.SendHash(c, ..); c.Receive() = %v, want %v", v, reply)
}
err = s.Send(c, "key1", "key2", "arg1", "arg2")
if err != nil {
t.Errorf("s.Send(c, ...) returned %v", err)
}
err = c.Flush()
if err != nil {
t.Errorf("c.Flush() returned %v", err)
}
v, err = c.Receive()
if !reflect.DeepEqual(v, reply) {
t.Errorf("s.Send(c, ..); c.Receive() = %v, want %v", v, reply)
}
}

183
vendor/github.com/garyburd/redigo/redis/test_test.go generated vendored
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@ -1,183 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redis
import (
"bufio"
"errors"
"flag"
"fmt"
"io"
"io/ioutil"
"os"
"os/exec"
"strconv"
"strings"
"sync"
"testing"
"time"
)
func SetNowFunc(f func() time.Time) {
nowFunc = f
}
var (
ErrNegativeInt = errNegativeInt
serverPath = flag.String("redis-server", "redis-server", "Path to redis server binary")
serverAddress = flag.String("redis-address", "127.0.0.1", "The address of the server")
serverBasePort = flag.Int("redis-port", 16379, "Beginning of port range for test servers")
serverLogName = flag.String("redis-log", "", "Write Redis server logs to `filename`")
serverLog = ioutil.Discard
defaultServerMu sync.Mutex
defaultServer *Server
defaultServerErr error
)
type Server struct {
name string
cmd *exec.Cmd
done chan struct{}
}
func NewServer(name string, args ...string) (*Server, error) {
s := &Server{
name: name,
cmd: exec.Command(*serverPath, args...),
done: make(chan struct{}),
}
r, err := s.cmd.StdoutPipe()
if err != nil {
return nil, err
}
err = s.cmd.Start()
if err != nil {
return nil, err
}
ready := make(chan error, 1)
go s.watch(r, ready)
select {
case err = <-ready:
case <-time.After(time.Second * 10):
err = errors.New("timeout waiting for server to start")
}
if err != nil {
s.Stop()
return nil, err
}
return s, nil
}
func (s *Server) watch(r io.Reader, ready chan error) {
fmt.Fprintf(serverLog, "%d START %s \n", s.cmd.Process.Pid, s.name)
var listening bool
var text string
scn := bufio.NewScanner(r)
for scn.Scan() {
text = scn.Text()
fmt.Fprintf(serverLog, "%s\n", text)
if !listening {
if strings.Contains(text, " * Ready to accept connections") ||
strings.Contains(text, " * The server is now ready to accept connections on port") {
listening = true
ready <- nil
}
}
}
if !listening {
ready <- fmt.Errorf("server exited: %s", text)
}
s.cmd.Wait()
fmt.Fprintf(serverLog, "%d STOP %s \n", s.cmd.Process.Pid, s.name)
close(s.done)
}
func (s *Server) Stop() {
s.cmd.Process.Signal(os.Interrupt)
<-s.done
}
// stopDefaultServer stops the server created by DialDefaultServer.
func stopDefaultServer() {
defaultServerMu.Lock()
defer defaultServerMu.Unlock()
if defaultServer != nil {
defaultServer.Stop()
defaultServer = nil
}
}
// DefaultServerAddr starts the test server if not already started and returns
// the address of that server.
func DefaultServerAddr() (string, error) {
defaultServerMu.Lock()
defer defaultServerMu.Unlock()
addr := fmt.Sprintf("%v:%d", *serverAddress, *serverBasePort)
if defaultServer != nil || defaultServerErr != nil {
return addr, defaultServerErr
}
defaultServer, defaultServerErr = NewServer(
"default",
"--port", strconv.Itoa(*serverBasePort),
"--bind", *serverAddress,
"--save", "",
"--appendonly", "no")
return addr, defaultServerErr
}
// DialDefaultServer starts the test server if not already started and dials a
// connection to the server.
func DialDefaultServer() (Conn, error) {
addr, err := DefaultServerAddr()
if err != nil {
return nil, err
}
c, err := Dial("tcp", addr, DialReadTimeout(1*time.Second), DialWriteTimeout(1*time.Second))
if err != nil {
return nil, err
}
c.Do("FLUSHDB")
return c, nil
}
func TestMain(m *testing.M) {
os.Exit(func() int {
flag.Parse()
var f *os.File
if *serverLogName != "" {
var err error
f, err = os.OpenFile(*serverLogName, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0600)
if err != nil {
fmt.Fprintf(os.Stderr, "Error opening redis-log: %v\n", err)
return 1
}
defer f.Close()
serverLog = f
}
defer stopDefaultServer()
return m.Run()
}())
}

114
vendor/github.com/garyburd/redigo/redis/zpop_example_test.go generated vendored
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@ -1,114 +0,0 @@
// Copyright 2013 Gary Burd
//
// 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 redis_test
import (
"fmt"
"github.com/garyburd/redigo/redis"
)
// zpop pops a value from the ZSET key using WATCH/MULTI/EXEC commands.
func zpop(c redis.Conn, key string) (result string, err error) {
defer func() {
// Return connection to normal state on error.
if err != nil {
c.Do("DISCARD")
}
}()
// Loop until transaction is successful.
for {
if _, err := c.Do("WATCH", key); err != nil {
return "", err
}
members, err := redis.Strings(c.Do("ZRANGE", key, 0, 0))
if err != nil {
return "", err
}
if len(members) != 1 {
return "", redis.ErrNil
}
c.Send("MULTI")
c.Send("ZREM", key, members[0])
queued, err := c.Do("EXEC")
if err != nil {
return "", err
}
if queued != nil {
result = members[0]
break
}
}
return result, nil
}
// zpopScript pops a value from a ZSET.
var zpopScript = redis.NewScript(1, `
local r = redis.call('ZRANGE', KEYS[1], 0, 0)
if r ~= nil then
r = r[1]
redis.call('ZREM', KEYS[1], r)
end
return r
`)
// This example implements ZPOP as described at
// http://redis.io/topics/transactions using WATCH/MULTI/EXEC and scripting.
func Example_zpop() {
c, err := dial()
if err != nil {
fmt.Println(err)
return
}
defer c.Close()
// Add test data using a pipeline.
for i, member := range []string{"red", "blue", "green"} {
c.Send("ZADD", "zset", i, member)
}
if _, err := c.Do(""); err != nil {
fmt.Println(err)
return
}
// Pop using WATCH/MULTI/EXEC
v, err := zpop(c, "zset")
if err != nil {
fmt.Println(err)
return
}
fmt.Println(v)
// Pop using a script.
v, err = redis.String(zpopScript.Do(c, "zset"))
if err != nil {
fmt.Println(err)
return
}
fmt.Println(v)
// Output:
// red
// blue
}

152
vendor/github.com/garyburd/redigo/redisx/connmux.go generated vendored
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@ -1,152 +0,0 @@
// Copyright 2014 Gary Burd
//
// 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 redisx
import (
"errors"
"sync"
"github.com/garyburd/redigo/internal"
"github.com/garyburd/redigo/redis"
)
// ConnMux multiplexes one or more connections to a single underlying
// connection. The ConnMux connections do not support concurrency, commands
// that associate server side state with the connection or commands that put
// the connection in a special mode.
type ConnMux struct {
c redis.Conn
sendMu sync.Mutex
sendID uint
recvMu sync.Mutex
recvID uint
recvWait map[uint]chan struct{}
}
func NewConnMux(c redis.Conn) *ConnMux {
return &ConnMux{c: c, recvWait: make(map[uint]chan struct{})}
}
// Get gets a connection. The application must close the returned connection.
func (p *ConnMux) Get() redis.Conn {
c := &muxConn{p: p}
c.ids = c.buf[:0]
return c
}
// Close closes the underlying connection.
func (p *ConnMux) Close() error {
return p.c.Close()
}
type muxConn struct {
p *ConnMux
ids []uint
buf [8]uint
}
func (c *muxConn) send(flush bool, cmd string, args ...interface{}) error {
if internal.LookupCommandInfo(cmd).Set != 0 {
return errors.New("command not supported by mux pool")
}
p := c.p
p.sendMu.Lock()
id := p.sendID
c.ids = append(c.ids, id)
p.sendID++
err := p.c.Send(cmd, args...)
if flush {
err = p.c.Flush()
}
p.sendMu.Unlock()
return err
}
func (c *muxConn) Send(cmd string, args ...interface{}) error {
return c.send(false, cmd, args...)
}
func (c *muxConn) Flush() error {
p := c.p
p.sendMu.Lock()
err := p.c.Flush()
p.sendMu.Unlock()
return err
}
func (c *muxConn) Receive() (interface{}, error) {
if len(c.ids) == 0 {
return nil, errors.New("mux pool underflow")
}
id := c.ids[0]
c.ids = c.ids[1:]
if len(c.ids) == 0 {
c.ids = c.buf[:0]
}
p := c.p
p.recvMu.Lock()
if p.recvID != id {
ch := make(chan struct{})
p.recvWait[id] = ch
p.recvMu.Unlock()
<-ch
p.recvMu.Lock()
if p.recvID != id {
panic("out of sync")
}
}
v, err := p.c.Receive()
id++
p.recvID = id
ch, ok := p.recvWait[id]
if ok {
delete(p.recvWait, id)
}
p.recvMu.Unlock()
if ok {
ch <- struct{}{}
}
return v, err
}
func (c *muxConn) Close() error {
var err error
if len(c.ids) == 0 {
return nil
}
c.Flush()
for _ = range c.ids {
_, err = c.Receive()
}
return err
}
func (c *muxConn) Do(cmd string, args ...interface{}) (interface{}, error) {
if err := c.send(true, cmd, args...); err != nil {
return nil, err
}
return c.Receive()
}
func (c *muxConn) Err() error {
return c.p.c.Err()
}

259
vendor/github.com/garyburd/redigo/redisx/connmux_test.go generated vendored
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@ -1,259 +0,0 @@
// Copyright 2014 Gary Burd
//
// 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 redisx_test
import (
"net/textproto"
"sync"
"testing"
"github.com/garyburd/redigo/internal/redistest"
"github.com/garyburd/redigo/redis"
"github.com/garyburd/redigo/redisx"
)
func TestConnMux(t *testing.T) {
c, err := redistest.Dial()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
m := redisx.NewConnMux(c)
defer m.Close()
c1 := m.Get()
c2 := m.Get()
c1.Send("ECHO", "hello")
c2.Send("ECHO", "world")
c1.Flush()
c2.Flush()
s, err := redis.String(c1.Receive())
if err != nil {
t.Fatal(err)
}
if s != "hello" {
t.Fatalf("echo returned %q, want %q", s, "hello")
}
s, err = redis.String(c2.Receive())
if err != nil {
t.Fatal(err)
}
if s != "world" {
t.Fatalf("echo returned %q, want %q", s, "world")
}
c1.Close()
c2.Close()
}
func TestConnMuxClose(t *testing.T) {
c, err := redistest.Dial()
if err != nil {
t.Fatalf("error connection to database, %v", err)
}
m := redisx.NewConnMux(c)
defer m.Close()
c1 := m.Get()
c2 := m.Get()
if err := c1.Send("ECHO", "hello"); err != nil {
t.Fatal(err)
}
if err := c1.Close(); err != nil {
t.Fatal(err)
}
if err := c2.Send("ECHO", "world"); err != nil {
t.Fatal(err)
}
if err := c2.Flush(); err != nil {
t.Fatal(err)
}
s, err := redis.String(c2.Receive())
if err != nil {
t.Fatal(err)
}
if s != "world" {
t.Fatalf("echo returned %q, want %q", s, "world")
}
c2.Close()
}
func BenchmarkConn(b *testing.B) {
b.StopTimer()
c, err := redistest.Dial()
if err != nil {
b.Fatalf("error connection to database, %v", err)
}
defer c.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
if _, err := c.Do("PING"); err != nil {
b.Fatal(err)
}
}
}
func BenchmarkConnMux(b *testing.B) {
b.StopTimer()
c, err := redistest.Dial()
if err != nil {
b.Fatalf("error connection to database, %v", err)
}
m := redisx.NewConnMux(c)
defer m.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
c := m.Get()
if _, err := c.Do("PING"); err != nil {
b.Fatal(err)
}
c.Close()
}
}
func BenchmarkPool(b *testing.B) {
b.StopTimer()
p := redis.Pool{Dial: redistest.Dial, MaxIdle: 1}
defer p.Close()
// Fill the pool.
c := p.Get()
if err := c.Err(); err != nil {
b.Fatal(err)
}
c.Close()
b.StartTimer()
for i := 0; i < b.N; i++ {
c := p.Get()
if _, err := c.Do("PING"); err != nil {
b.Fatal(err)
}
c.Close()
}
}
const numConcurrent = 10
func BenchmarkConnMuxConcurrent(b *testing.B) {
b.StopTimer()
c, err := redistest.Dial()
if err != nil {
b.Fatalf("error connection to database, %v", err)
}
defer c.Close()
m := redisx.NewConnMux(c)
var wg sync.WaitGroup
wg.Add(numConcurrent)
b.StartTimer()
for i := 0; i < numConcurrent; i++ {
go func() {
defer wg.Done()
for i := 0; i < b.N; i++ {
c := m.Get()
if _, err := c.Do("PING"); err != nil {
b.Fatal(err)
}
c.Close()
}
}()
}
wg.Wait()
}
func BenchmarkPoolConcurrent(b *testing.B) {
b.StopTimer()
p := redis.Pool{Dial: redistest.Dial, MaxIdle: numConcurrent}
defer p.Close()
// Fill the pool.
conns := make([]redis.Conn, numConcurrent)
for i := range conns {
c := p.Get()
if err := c.Err(); err != nil {
b.Fatal(err)
}
conns[i] = c
}
for _, c := range conns {
c.Close()
}
var wg sync.WaitGroup
wg.Add(numConcurrent)
b.StartTimer()
for i := 0; i < numConcurrent; i++ {
go func() {
defer wg.Done()
for i := 0; i < b.N; i++ {
c := p.Get()
if _, err := c.Do("PING"); err != nil {
b.Fatal(err)
}
c.Close()
}
}()
}
wg.Wait()
}
func BenchmarkPipelineConcurrency(b *testing.B) {
b.StopTimer()
c, err := redistest.Dial()
if err != nil {
b.Fatalf("error connection to database, %v", err)
}
defer c.Close()
var wg sync.WaitGroup
wg.Add(numConcurrent)
var pipeline textproto.Pipeline
b.StartTimer()
for i := 0; i < numConcurrent; i++ {
go func() {
defer wg.Done()
for i := 0; i < b.N; i++ {
id := pipeline.Next()
pipeline.StartRequest(id)
c.Send("PING")
c.Flush()
pipeline.EndRequest(id)
pipeline.StartResponse(id)
_, err := c.Receive()
if err != nil {
b.Fatal(err)
}
pipeline.EndResponse(id)
}
}()
}
wg.Wait()
}

17
vendor/github.com/garyburd/redigo/redisx/doc.go generated vendored
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@ -1,17 +0,0 @@
// Copyright 2012 Gary Burd
//
// 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 redisx contains experimental features for Redigo. Features in this
// package may be modified or deleted at any time.
package redisx // import "github.com/garyburd/redigo/redisx"