mirror of
https://github.com/minio/minio.git
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Update Redis client used for bucket notifications (#7213)
Current Redis client used https://github.com/garyburd/redigo/ has been archived and further development is done at https://github.com/gomodule/redigo This commit updates the client library accordingly. Fixes #6392
This commit is contained in:
parent
a8cd70f3e5
commit
13c3b8afe2
@ -23,7 +23,7 @@ import (
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"strings"
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"strings"
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"time"
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"time"
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"github.com/garyburd/redigo/redis"
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"github.com/gomodule/redigo/redis"
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"github.com/minio/minio/pkg/event"
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"github.com/minio/minio/pkg/event"
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xnet "github.com/minio/minio/pkg/net"
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xnet "github.com/minio/minio/pkg/net"
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)
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)
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416
vendor/github.com/garyburd/redigo/redis/pool.go
generated
vendored
416
vendor/github.com/garyburd/redigo/redis/pool.go
generated
vendored
@ -1,416 +0,0 @@
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// Copyright 2012 Gary Burd
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//
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// Licensed under the Apache License, Version 2.0 (the "License"): you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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package redis
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import (
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"bytes"
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"container/list"
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"crypto/rand"
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"crypto/sha1"
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"errors"
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"io"
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"strconv"
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"sync"
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"time"
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"github.com/garyburd/redigo/internal"
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)
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var nowFunc = time.Now // for testing
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// ErrPoolExhausted is returned from a pool connection method (Do, Send,
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// Receive, Flush, Err) when the maximum number of database connections in the
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// pool has been reached.
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var ErrPoolExhausted = errors.New("redigo: connection pool exhausted")
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var (
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errPoolClosed = errors.New("redigo: connection pool closed")
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errConnClosed = errors.New("redigo: connection closed")
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)
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// Pool maintains a pool of connections. The application calls the Get method
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// to get a connection from the pool and the connection's Close method to
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// return the connection's resources to the pool.
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//
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// The following example shows how to use a pool in a web application. The
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// application creates a pool at application startup and makes it available to
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// request handlers using a package level variable. The pool configuration used
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// here is an example, not a recommendation.
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//
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// func newPool(addr string) *redis.Pool {
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// return &redis.Pool{
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// MaxIdle: 3,
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// IdleTimeout: 240 * time.Second,
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// Dial: func () (redis.Conn, error) { return redis.Dial("tcp", addr) },
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// }
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// }
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//
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// var (
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// pool *redis.Pool
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// redisServer = flag.String("redisServer", ":6379", "")
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// )
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//
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// func main() {
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// flag.Parse()
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// pool = newPool(*redisServer)
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// ...
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// }
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//
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// A request handler gets a connection from the pool and closes the connection
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// when the handler is done:
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//
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// func serveHome(w http.ResponseWriter, r *http.Request) {
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// conn := pool.Get()
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// defer conn.Close()
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// ...
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// }
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//
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// Use the Dial function to authenticate connections with the AUTH command or
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// select a database with the SELECT command:
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//
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// pool := &redis.Pool{
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// // Other pool configuration not shown in this example.
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// Dial: func () (redis.Conn, error) {
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// c, err := redis.Dial("tcp", server)
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// if err != nil {
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// return nil, err
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// }
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// if _, err := c.Do("AUTH", password); err != nil {
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// c.Close()
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// return nil, err
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// }
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// if _, err := c.Do("SELECT", db); err != nil {
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// c.Close()
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// return nil, err
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// }
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// return c, nil
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// }
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// }
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//
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// Use the TestOnBorrow function to check the health of an idle connection
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// before the connection is returned to the application. This example PINGs
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// connections that have been idle more than a minute:
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//
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// pool := &redis.Pool{
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// // Other pool configuration not shown in this example.
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// TestOnBorrow: func(c redis.Conn, t time.Time) error {
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// if time.Since(t) < time.Minute {
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// return nil
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// }
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// _, err := c.Do("PING")
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// return err
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// },
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// }
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//
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type Pool struct {
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// Dial is an application supplied function for creating and configuring a
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// connection.
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//
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// The connection returned from Dial must not be in a special state
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// (subscribed to pubsub channel, transaction started, ...).
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Dial func() (Conn, error)
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// TestOnBorrow is an optional application supplied function for checking
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// the health of an idle connection before the connection is used again by
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// the application. Argument t is the time that the connection was returned
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// to the pool. If the function returns an error, then the connection is
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// closed.
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TestOnBorrow func(c Conn, t time.Time) error
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// Maximum number of idle connections in the pool.
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MaxIdle int
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// Maximum number of connections allocated by the pool at a given time.
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// When zero, there is no limit on the number of connections in the pool.
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MaxActive int
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// Close connections after remaining idle for this duration. If the value
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// is zero, then idle connections are not closed. Applications should set
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// the timeout to a value less than the server's timeout.
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IdleTimeout time.Duration
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// If Wait is true and the pool is at the MaxActive limit, then Get() waits
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// for a connection to be returned to the pool before returning.
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Wait bool
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// mu protects fields defined below.
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mu sync.Mutex
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cond *sync.Cond
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closed bool
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active int
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// Stack of idleConn with most recently used at the front.
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idle list.List
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}
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type idleConn struct {
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c Conn
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t time.Time
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}
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// NewPool creates a new pool.
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//
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// Deprecated: Initialize the Pool directory as shown in the example.
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func NewPool(newFn func() (Conn, error), maxIdle int) *Pool {
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return &Pool{Dial: newFn, MaxIdle: maxIdle}
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}
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// Get gets a connection. The application must close the returned connection.
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// This method always returns a valid connection so that applications can defer
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// error handling to the first use of the connection. If there is an error
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// getting an underlying connection, then the connection Err, Do, Send, Flush
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// and Receive methods return that error.
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func (p *Pool) Get() Conn {
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c, err := p.get()
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if err != nil {
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return errorConnection{err}
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}
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return &pooledConnection{p: p, c: c}
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}
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// ActiveCount returns the number of active connections in the pool.
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func (p *Pool) ActiveCount() int {
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p.mu.Lock()
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active := p.active
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p.mu.Unlock()
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return active
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}
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// Close releases the resources used by the pool.
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func (p *Pool) Close() error {
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p.mu.Lock()
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idle := p.idle
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p.idle.Init()
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p.closed = true
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p.active -= idle.Len()
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if p.cond != nil {
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p.cond.Broadcast()
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}
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p.mu.Unlock()
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for e := idle.Front(); e != nil; e = e.Next() {
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e.Value.(idleConn).c.Close()
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}
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return nil
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}
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// release decrements the active count and signals waiters. The caller must
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// hold p.mu during the call.
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func (p *Pool) release() {
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p.active -= 1
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if p.cond != nil {
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p.cond.Signal()
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}
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}
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// get prunes stale connections and returns a connection from the idle list or
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// creates a new connection.
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func (p *Pool) get() (Conn, error) {
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p.mu.Lock()
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// Prune stale connections.
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if timeout := p.IdleTimeout; timeout > 0 {
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for i, n := 0, p.idle.Len(); i < n; i++ {
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e := p.idle.Back()
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if e == nil {
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break
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}
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ic := e.Value.(idleConn)
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if ic.t.Add(timeout).After(nowFunc()) {
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break
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}
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p.idle.Remove(e)
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p.release()
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p.mu.Unlock()
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ic.c.Close()
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p.mu.Lock()
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}
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}
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for {
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// Get idle connection.
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for i, n := 0, p.idle.Len(); i < n; i++ {
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e := p.idle.Front()
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if e == nil {
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break
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}
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ic := e.Value.(idleConn)
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p.idle.Remove(e)
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test := p.TestOnBorrow
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p.mu.Unlock()
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if test == nil || test(ic.c, ic.t) == nil {
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return ic.c, nil
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}
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ic.c.Close()
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p.mu.Lock()
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p.release()
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}
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// Check for pool closed before dialing a new connection.
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if p.closed {
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p.mu.Unlock()
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return nil, errors.New("redigo: get on closed pool")
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}
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// Dial new connection if under limit.
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if p.MaxActive == 0 || p.active < p.MaxActive {
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dial := p.Dial
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p.active += 1
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p.mu.Unlock()
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c, err := dial()
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if err != nil {
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p.mu.Lock()
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p.release()
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p.mu.Unlock()
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c = nil
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}
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return c, err
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}
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if !p.Wait {
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p.mu.Unlock()
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return nil, ErrPoolExhausted
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}
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if p.cond == nil {
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p.cond = sync.NewCond(&p.mu)
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}
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p.cond.Wait()
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}
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}
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func (p *Pool) put(c Conn, forceClose bool) error {
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err := c.Err()
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p.mu.Lock()
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if !p.closed && err == nil && !forceClose {
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p.idle.PushFront(idleConn{t: nowFunc(), c: c})
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if p.idle.Len() > p.MaxIdle {
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c = p.idle.Remove(p.idle.Back()).(idleConn).c
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} else {
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c = nil
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}
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}
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if c == nil {
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if p.cond != nil {
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p.cond.Signal()
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}
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p.mu.Unlock()
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return nil
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}
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p.release()
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p.mu.Unlock()
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return c.Close()
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}
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type pooledConnection struct {
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p *Pool
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c Conn
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state int
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}
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var (
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sentinel []byte
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sentinelOnce sync.Once
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)
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func initSentinel() {
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p := make([]byte, 64)
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if _, err := rand.Read(p); err == nil {
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sentinel = p
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} else {
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h := sha1.New()
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io.WriteString(h, "Oops, rand failed. Use time instead.")
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io.WriteString(h, strconv.FormatInt(time.Now().UnixNano(), 10))
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sentinel = h.Sum(nil)
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}
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}
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func (pc *pooledConnection) Close() error {
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c := pc.c
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if _, ok := c.(errorConnection); ok {
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return nil
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}
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pc.c = errorConnection{errConnClosed}
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if pc.state&internal.MultiState != 0 {
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c.Send("DISCARD")
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pc.state &^= (internal.MultiState | internal.WatchState)
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} else if pc.state&internal.WatchState != 0 {
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c.Send("UNWATCH")
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pc.state &^= internal.WatchState
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}
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if pc.state&internal.SubscribeState != 0 {
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c.Send("UNSUBSCRIBE")
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c.Send("PUNSUBSCRIBE")
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// To detect the end of the message stream, ask the server to echo
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// a sentinel value and read until we see that value.
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sentinelOnce.Do(initSentinel)
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c.Send("ECHO", sentinel)
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c.Flush()
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for {
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p, err := c.Receive()
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if err != nil {
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break
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}
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if p, ok := p.([]byte); ok && bytes.Equal(p, sentinel) {
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pc.state &^= internal.SubscribeState
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break
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}
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}
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}
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c.Do("")
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pc.p.put(c, pc.state != 0)
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return nil
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}
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|
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func (pc *pooledConnection) Err() error {
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|
||||||
return pc.c.Err()
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}
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func (pc *pooledConnection) Do(commandName string, args ...interface{}) (reply interface{}, err error) {
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||||||
ci := internal.LookupCommandInfo(commandName)
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pc.state = (pc.state | ci.Set) &^ ci.Clear
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||||||
return pc.c.Do(commandName, args...)
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}
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||||||
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func (pc *pooledConnection) Send(commandName string, args ...interface{}) error {
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ci := internal.LookupCommandInfo(commandName)
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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()
|
|
||||||
}
|
|
||||||
|
|
||||||
type errorConnection struct{ err error }
|
|
||||||
|
|
||||||
func (ec errorConnection) Do(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 ec.err }
|
|
||||||
func (ec errorConnection) Flush() error { return ec.err }
|
|
||||||
func (ec errorConnection) Receive() (interface{}, error) { return nil, ec.err }
|
|
41
vendor/github.com/garyburd/redigo/redis/redis.go
generated
vendored
41
vendor/github.com/garyburd/redigo/redis/redis.go
generated
vendored
@ -1,41 +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
|
|
||||||
|
|
||||||
// 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)
|
|
||||||
}
|
|
175
vendor/github.com/gomodule/redigo/LICENSE
generated
vendored
Normal file
175
vendor/github.com/gomodule/redigo/LICENSE
generated
vendored
Normal file
@ -0,0 +1,175 @@
|
|||||||
|
|
||||||
|
Apache License
|
||||||
|
Version 2.0, January 2004
|
||||||
|
http://www.apache.org/licenses/
|
||||||
|
|
||||||
|
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||||
|
|
||||||
|
1. Definitions.
|
||||||
|
|
||||||
|
"License" shall mean the terms and conditions for use, reproduction,
|
||||||
|
and distribution as defined by Sections 1 through 9 of this document.
|
||||||
|
|
||||||
|
"Licensor" shall mean the copyright owner or entity authorized by
|
||||||
|
the copyright owner that is granting the License.
|
||||||
|
|
||||||
|
"Legal Entity" shall mean the union of the acting entity and all
|
||||||
|
other entities that control, are controlled by, or are under common
|
||||||
|
control with that entity. For the purposes of this definition,
|
||||||
|
"control" means (i) the power, direct or indirect, to cause the
|
||||||
|
direction or management of such entity, whether by contract or
|
||||||
|
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||||
|
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||||
|
|
||||||
|
"You" (or "Your") shall mean an individual or Legal Entity
|
||||||
|
exercising permissions granted by this License.
|
||||||
|
|
||||||
|
"Source" form shall mean the preferred form for making modifications,
|
||||||
|
including but not limited to software source code, documentation
|
||||||
|
source, and configuration files.
|
||||||
|
|
||||||
|
"Object" form shall mean any form resulting from mechanical
|
||||||
|
transformation or translation of a Source form, including but
|
||||||
|
not limited to compiled object code, generated documentation,
|
||||||
|
and conversions to other media types.
|
||||||
|
|
||||||
|
"Work" shall mean the work of authorship, whether in Source or
|
||||||
|
Object form, made available under the License, as indicated by a
|
||||||
|
copyright notice that is included in or attached to the work
|
||||||
|
(an example is provided in the Appendix below).
|
||||||
|
|
||||||
|
"Derivative Works" shall mean any work, whether in Source or Object
|
||||||
|
form, that is based on (or derived from) the Work and for which the
|
||||||
|
editorial revisions, annotations, elaborations, or other modifications
|
||||||
|
represent, as a whole, an original work of authorship. For the purposes
|
||||||
|
of this License, Derivative Works shall not include works that remain
|
||||||
|
separable from, or merely link (or bind by name) to the interfaces of,
|
||||||
|
the Work and Derivative Works thereof.
|
||||||
|
|
||||||
|
"Contribution" shall mean any work of authorship, including
|
||||||
|
the original version of the Work and any modifications or additions
|
||||||
|
to that Work or Derivative Works thereof, that is intentionally
|
||||||
|
submitted to Licensor for inclusion in the Work by the copyright owner
|
||||||
|
or by an individual or Legal Entity authorized to submit on behalf of
|
||||||
|
the copyright owner. For the purposes of this definition, "submitted"
|
||||||
|
means any form of electronic, verbal, or written communication sent
|
||||||
|
to the Licensor or its representatives, including but not limited to
|
||||||
|
communication on electronic mailing lists, source code control systems,
|
||||||
|
and issue tracking systems that are managed by, or on behalf of, the
|
||||||
|
Licensor for the purpose of discussing and improving the Work, but
|
||||||
|
excluding communication that is conspicuously marked or otherwise
|
||||||
|
designated in writing by the copyright owner as "Not a Contribution."
|
||||||
|
|
||||||
|
"Contributor" shall mean Licensor and any individual or Legal Entity
|
||||||
|
on behalf of whom a Contribution has been received by Licensor and
|
||||||
|
subsequently incorporated within the Work.
|
||||||
|
|
||||||
|
2. Grant of Copyright License. Subject to the terms and conditions of
|
||||||
|
this License, each Contributor hereby grants to You a perpetual,
|
||||||
|
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||||
|
copyright license to reproduce, prepare Derivative Works of,
|
||||||
|
publicly display, publicly perform, sublicense, and distribute the
|
||||||
|
Work and such Derivative Works in Source or Object form.
|
||||||
|
|
||||||
|
3. Grant of Patent License. Subject to the terms and conditions of
|
||||||
|
this License, each Contributor hereby grants to You a perpetual,
|
||||||
|
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||||
|
(except as stated in this section) patent license to make, have made,
|
||||||
|
use, offer to sell, sell, import, and otherwise transfer the Work,
|
||||||
|
where such license applies only to those patent claims licensable
|
||||||
|
by such Contributor that are necessarily infringed by their
|
||||||
|
Contribution(s) alone or by combination of their Contribution(s)
|
||||||
|
with the Work to which such Contribution(s) was submitted. If You
|
||||||
|
institute patent litigation against any entity (including a
|
||||||
|
cross-claim or counterclaim in a lawsuit) alleging that the Work
|
||||||
|
or a Contribution incorporated within the Work constitutes direct
|
||||||
|
or contributory patent infringement, then any patent licenses
|
||||||
|
granted to You under this License for that Work shall terminate
|
||||||
|
as of the date such litigation is filed.
|
||||||
|
|
||||||
|
4. Redistribution. You may reproduce and distribute copies of the
|
||||||
|
Work or Derivative Works thereof in any medium, with or without
|
||||||
|
modifications, and in Source or Object form, provided that You
|
||||||
|
meet the following conditions:
|
||||||
|
|
||||||
|
(a) You must give any other recipients of the Work or
|
||||||
|
Derivative Works a copy of this License; and
|
||||||
|
|
||||||
|
(b) You must cause any modified files to carry prominent notices
|
||||||
|
stating that You changed the files; and
|
||||||
|
|
||||||
|
(c) You must retain, in the Source form of any Derivative Works
|
||||||
|
that You distribute, all copyright, patent, trademark, and
|
||||||
|
attribution notices from the Source form of the Work,
|
||||||
|
excluding those notices that do not pertain to any part of
|
||||||
|
the Derivative Works; and
|
||||||
|
|
||||||
|
(d) If the Work includes a "NOTICE" text file as part of its
|
||||||
|
distribution, then any Derivative Works that You distribute must
|
||||||
|
include a readable copy of the attribution notices contained
|
||||||
|
within such NOTICE file, excluding those notices that do not
|
||||||
|
pertain to any part of the Derivative Works, in at least one
|
||||||
|
of the following places: within a NOTICE text file distributed
|
||||||
|
as part of the Derivative Works; within the Source form or
|
||||||
|
documentation, if provided along with the Derivative Works; or,
|
||||||
|
within a display generated by the Derivative Works, if and
|
||||||
|
wherever such third-party notices normally appear. The contents
|
||||||
|
of the NOTICE file are for informational purposes only and
|
||||||
|
do not modify the License. You may add Your own attribution
|
||||||
|
notices within Derivative Works that You distribute, alongside
|
||||||
|
or as an addendum to the NOTICE text from the Work, provided
|
||||||
|
that such additional attribution notices cannot be construed
|
||||||
|
as modifying the License.
|
||||||
|
|
||||||
|
You may add Your own copyright statement to Your modifications and
|
||||||
|
may provide additional or different license terms and conditions
|
||||||
|
for use, reproduction, or distribution of Your modifications, or
|
||||||
|
for any such Derivative Works as a whole, provided Your use,
|
||||||
|
reproduction, and distribution of the Work otherwise complies with
|
||||||
|
the conditions stated in this License.
|
||||||
|
|
||||||
|
5. Submission of Contributions. Unless You explicitly state otherwise,
|
||||||
|
any Contribution intentionally submitted for inclusion in the Work
|
||||||
|
by You to the Licensor shall be under the terms and conditions of
|
||||||
|
this License, without any additional terms or conditions.
|
||||||
|
Notwithstanding the above, nothing herein shall supersede or modify
|
||||||
|
the terms of any separate license agreement you may have executed
|
||||||
|
with Licensor regarding such Contributions.
|
||||||
|
|
||||||
|
6. Trademarks. This License does not grant permission to use the trade
|
||||||
|
names, trademarks, service marks, or product names of the Licensor,
|
||||||
|
except as required for reasonable and customary use in describing the
|
||||||
|
origin of the Work and reproducing the content of the NOTICE file.
|
||||||
|
|
||||||
|
7. Disclaimer of Warranty. Unless required by applicable law or
|
||||||
|
agreed to in writing, Licensor provides the Work (and each
|
||||||
|
Contributor provides its Contributions) on an "AS IS" BASIS,
|
||||||
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||||
|
implied, including, without limitation, any warranties or conditions
|
||||||
|
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
|
||||||
|
PARTICULAR PURPOSE. You are solely responsible for determining the
|
||||||
|
appropriateness of using or redistributing the Work and assume any
|
||||||
|
risks associated with Your exercise of permissions under this License.
|
||||||
|
|
||||||
|
8. Limitation of Liability. In no event and under no legal theory,
|
||||||
|
whether in tort (including negligence), contract, or otherwise,
|
||||||
|
unless required by applicable law (such as deliberate and grossly
|
||||||
|
negligent acts) or agreed to in writing, shall any Contributor be
|
||||||
|
liable to You for damages, including any direct, indirect, special,
|
||||||
|
incidental, or consequential damages of any character arising as a
|
||||||
|
result of this License or out of the use or inability to use the
|
||||||
|
Work (including but not limited to damages for loss of goodwill,
|
||||||
|
work stoppage, computer failure or malfunction, or any and all
|
||||||
|
other commercial damages or losses), even if such Contributor
|
||||||
|
has been advised of the possibility of such damages.
|
||||||
|
|
||||||
|
9. Accepting Warranty or Additional Liability. While redistributing
|
||||||
|
the Work or Derivative Works thereof, You may choose to offer,
|
||||||
|
and charge a fee for, acceptance of support, warranty, indemnity,
|
||||||
|
or other liability obligations and/or rights consistent with this
|
||||||
|
License. However, in accepting such obligations, You may act only
|
||||||
|
on Your own behalf and on Your sole responsibility, not on behalf
|
||||||
|
of any other Contributor, and only if You agree to indemnify,
|
||||||
|
defend, and hold each Contributor harmless for any liability
|
||||||
|
incurred by, or claims asserted against, such Contributor by reason
|
||||||
|
of your accepting any such warranty or additional liability.
|
55
vendor/github.com/gomodule/redigo/redis/commandinfo.go
generated
vendored
Normal file
55
vendor/github.com/gomodule/redigo/redis/commandinfo.go
generated
vendored
Normal file
@ -0,0 +1,55 @@
|
|||||||
|
// 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 redis
|
||||||
|
|
||||||
|
import (
|
||||||
|
"strings"
|
||||||
|
)
|
||||||
|
|
||||||
|
const (
|
||||||
|
connectionWatchState = 1 << iota
|
||||||
|
connectionMultiState
|
||||||
|
connectionSubscribeState
|
||||||
|
connectionMonitorState
|
||||||
|
)
|
||||||
|
|
||||||
|
type commandInfo struct {
|
||||||
|
// Set or Clear these states on connection.
|
||||||
|
Set, Clear int
|
||||||
|
}
|
||||||
|
|
||||||
|
var commandInfos = map[string]commandInfo{
|
||||||
|
"WATCH": {Set: connectionWatchState},
|
||||||
|
"UNWATCH": {Clear: connectionWatchState},
|
||||||
|
"MULTI": {Set: connectionMultiState},
|
||||||
|
"EXEC": {Clear: connectionWatchState | connectionMultiState},
|
||||||
|
"DISCARD": {Clear: connectionWatchState | connectionMultiState},
|
||||||
|
"PSUBSCRIBE": {Set: connectionSubscribeState},
|
||||||
|
"SUBSCRIBE": {Set: connectionSubscribeState},
|
||||||
|
"MONITOR": {Set: connectionMonitorState},
|
||||||
|
}
|
||||||
|
|
||||||
|
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)]
|
||||||
|
}
|
@ -29,9 +29,12 @@ import (
|
|||||||
"time"
|
"time"
|
||||||
)
|
)
|
||||||
|
|
||||||
|
var (
|
||||||
|
_ ConnWithTimeout = (*conn)(nil)
|
||||||
|
)
|
||||||
|
|
||||||
// conn is the low-level implementation of Conn
|
// conn is the low-level implementation of Conn
|
||||||
type conn struct {
|
type conn struct {
|
||||||
|
|
||||||
// Shared
|
// Shared
|
||||||
mu sync.Mutex
|
mu sync.Mutex
|
||||||
pending int
|
pending int
|
||||||
@ -73,10 +76,12 @@ type DialOption struct {
|
|||||||
type dialOptions struct {
|
type dialOptions struct {
|
||||||
readTimeout time.Duration
|
readTimeout time.Duration
|
||||||
writeTimeout time.Duration
|
writeTimeout time.Duration
|
||||||
|
dialer *net.Dialer
|
||||||
dial func(network, addr string) (net.Conn, error)
|
dial func(network, addr string) (net.Conn, error)
|
||||||
db int
|
db int
|
||||||
password string
|
password string
|
||||||
dialTLS bool
|
clientName string
|
||||||
|
useTLS bool
|
||||||
skipVerify bool
|
skipVerify bool
|
||||||
tlsConfig *tls.Config
|
tlsConfig *tls.Config
|
||||||
}
|
}
|
||||||
@ -95,17 +100,27 @@ func DialWriteTimeout(d time.Duration) DialOption {
|
|||||||
}}
|
}}
|
||||||
}
|
}
|
||||||
|
|
||||||
// DialConnectTimeout specifies the timeout for connecting to the Redis server.
|
// DialConnectTimeout specifies the timeout for connecting to the Redis server when
|
||||||
|
// no DialNetDial option is specified.
|
||||||
func DialConnectTimeout(d time.Duration) DialOption {
|
func DialConnectTimeout(d time.Duration) DialOption {
|
||||||
return DialOption{func(do *dialOptions) {
|
return DialOption{func(do *dialOptions) {
|
||||||
dialer := net.Dialer{Timeout: d}
|
do.dialer.Timeout = d
|
||||||
do.dial = dialer.Dial
|
}}
|
||||||
|
}
|
||||||
|
|
||||||
|
// 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
|
// DialNetDial specifies a custom dial function for creating TCP
|
||||||
// connections. If this option is left out, then net.Dial is
|
// connections, otherwise a net.Dialer customized via the other options is used.
|
||||||
// used. DialNetDial overrides DialConnectTimeout.
|
// DialNetDial overrides DialConnectTimeout and DialKeepAlive.
|
||||||
func DialNetDial(dial func(network, addr string) (net.Conn, error)) DialOption {
|
func DialNetDial(dial func(network, addr string) (net.Conn, error)) DialOption {
|
||||||
return DialOption{func(do *dialOptions) {
|
return DialOption{func(do *dialOptions) {
|
||||||
do.dial = dial
|
do.dial = dial
|
||||||
@ -127,6 +142,14 @@ func DialPassword(password string) DialOption {
|
|||||||
}}
|
}}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// DialClientName specifies a client name to be used
|
||||||
|
// by the Redis server connection.
|
||||||
|
func DialClientName(name string) DialOption {
|
||||||
|
return DialOption{func(do *dialOptions) {
|
||||||
|
do.clientName = name
|
||||||
|
}}
|
||||||
|
}
|
||||||
|
|
||||||
// DialTLSConfig specifies the config to use when a TLS connection is dialed.
|
// DialTLSConfig specifies the config to use when a TLS connection is dialed.
|
||||||
// Has no effect when not dialing a TLS connection.
|
// Has no effect when not dialing a TLS connection.
|
||||||
func DialTLSConfig(c *tls.Config) DialOption {
|
func DialTLSConfig(c *tls.Config) DialOption {
|
||||||
@ -135,31 +158,49 @@ func DialTLSConfig(c *tls.Config) DialOption {
|
|||||||
}}
|
}}
|
||||||
}
|
}
|
||||||
|
|
||||||
// DialTLSSkipVerify to disable server name verification when connecting
|
// DialTLSSkipVerify disables server name verification when connecting over
|
||||||
// over TLS. Has no effect when not dialing a TLS connection.
|
// TLS. Has no effect when not dialing a TLS connection.
|
||||||
func DialTLSSkipVerify(skip bool) DialOption {
|
func DialTLSSkipVerify(skip bool) DialOption {
|
||||||
return DialOption{func(do *dialOptions) {
|
return DialOption{func(do *dialOptions) {
|
||||||
do.skipVerify = skip
|
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
|
// Dial connects to the Redis server at the given network and
|
||||||
// address using the specified options.
|
// address using the specified options.
|
||||||
func Dial(network, address string, options ...DialOption) (Conn, error) {
|
func Dial(network, address string, options ...DialOption) (Conn, error) {
|
||||||
do := dialOptions{
|
do := dialOptions{
|
||||||
dial: net.Dial,
|
dialer: &net.Dialer{
|
||||||
|
KeepAlive: time.Minute * 5,
|
||||||
|
},
|
||||||
}
|
}
|
||||||
for _, option := range options {
|
for _, option := range options {
|
||||||
option.f(&do)
|
option.f(&do)
|
||||||
}
|
}
|
||||||
|
if do.dial == nil {
|
||||||
|
do.dial = do.dialer.Dial
|
||||||
|
}
|
||||||
|
|
||||||
netConn, err := do.dial(network, address)
|
netConn, err := do.dial(network, address)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
return nil, err
|
return nil, err
|
||||||
}
|
}
|
||||||
|
|
||||||
if do.dialTLS {
|
if do.useTLS {
|
||||||
tlsConfig := cloneTLSClientConfig(do.tlsConfig, do.skipVerify)
|
var tlsConfig *tls.Config
|
||||||
|
if do.tlsConfig == nil {
|
||||||
|
tlsConfig = &tls.Config{InsecureSkipVerify: do.skipVerify}
|
||||||
|
} else {
|
||||||
|
tlsConfig = cloneTLSConfig(do.tlsConfig)
|
||||||
|
}
|
||||||
if tlsConfig.ServerName == "" {
|
if tlsConfig.ServerName == "" {
|
||||||
host, _, err := net.SplitHostPort(address)
|
host, _, err := net.SplitHostPort(address)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
@ -192,6 +233,13 @@ func Dial(network, address string, options ...DialOption) (Conn, error) {
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
if do.clientName != "" {
|
||||||
|
if _, err := c.Do("CLIENT", "SETNAME", do.clientName); err != nil {
|
||||||
|
netConn.Close()
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
if do.db != 0 {
|
if do.db != 0 {
|
||||||
if _, err := c.Do("SELECT", do.db); err != nil {
|
if _, err := c.Do("SELECT", do.db); err != nil {
|
||||||
netConn.Close()
|
netConn.Close()
|
||||||
@ -202,10 +250,6 @@ func Dial(network, address string, options ...DialOption) (Conn, error) {
|
|||||||
return c, nil
|
return c, nil
|
||||||
}
|
}
|
||||||
|
|
||||||
func dialTLS(do *dialOptions) {
|
|
||||||
do.dialTLS = true
|
|
||||||
}
|
|
||||||
|
|
||||||
var pathDBRegexp = regexp.MustCompile(`/(\d*)\z`)
|
var pathDBRegexp = regexp.MustCompile(`/(\d*)\z`)
|
||||||
|
|
||||||
// DialURL connects to a Redis server at the given URL using the Redis
|
// DialURL connects to a Redis server at the given URL using the Redis
|
||||||
@ -257,9 +301,7 @@ func DialURL(rawurl string, options ...DialOption) (Conn, error) {
|
|||||||
return nil, fmt.Errorf("invalid database: %s", u.Path[1:])
|
return nil, fmt.Errorf("invalid database: %s", u.Path[1:])
|
||||||
}
|
}
|
||||||
|
|
||||||
if u.Scheme == "rediss" {
|
options = append(options, DialUseTLS(u.Scheme == "rediss"))
|
||||||
options = append([]DialOption{{dialTLS}}, options...)
|
|
||||||
}
|
|
||||||
|
|
||||||
return Dial("tcp", address, options...)
|
return Dial("tcp", address, options...)
|
||||||
}
|
}
|
||||||
@ -344,39 +386,55 @@ func (c *conn) writeFloat64(n float64) error {
|
|||||||
return c.writeBytes(strconv.AppendFloat(c.numScratch[:0], n, 'g', -1, 64))
|
return c.writeBytes(strconv.AppendFloat(c.numScratch[:0], n, 'g', -1, 64))
|
||||||
}
|
}
|
||||||
|
|
||||||
func (c *conn) writeCommand(cmd string, args []interface{}) (err error) {
|
func (c *conn) writeCommand(cmd string, args []interface{}) error {
|
||||||
c.writeLen('*', 1+len(args))
|
c.writeLen('*', 1+len(args))
|
||||||
err = c.writeString(cmd)
|
if err := c.writeString(cmd); err != nil {
|
||||||
for _, arg := range args {
|
return err
|
||||||
if err != nil {
|
|
||||||
break
|
|
||||||
}
|
}
|
||||||
|
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) {
|
switch arg := arg.(type) {
|
||||||
case string:
|
case string:
|
||||||
err = c.writeString(arg)
|
return c.writeString(arg)
|
||||||
case []byte:
|
case []byte:
|
||||||
err = c.writeBytes(arg)
|
return c.writeBytes(arg)
|
||||||
case int:
|
case int:
|
||||||
err = c.writeInt64(int64(arg))
|
return c.writeInt64(int64(arg))
|
||||||
case int64:
|
case int64:
|
||||||
err = c.writeInt64(arg)
|
return c.writeInt64(arg)
|
||||||
case float64:
|
case float64:
|
||||||
err = c.writeFloat64(arg)
|
return c.writeFloat64(arg)
|
||||||
case bool:
|
case bool:
|
||||||
if arg {
|
if arg {
|
||||||
err = c.writeString("1")
|
return c.writeString("1")
|
||||||
} else {
|
} else {
|
||||||
err = c.writeString("0")
|
return c.writeString("0")
|
||||||
}
|
}
|
||||||
case nil:
|
case nil:
|
||||||
err = c.writeString("")
|
return c.writeString("")
|
||||||
default:
|
case Argument:
|
||||||
|
if argumentTypeOK {
|
||||||
|
return c.writeArg(arg.RedisArg(), false)
|
||||||
|
}
|
||||||
|
// See comment in default clause below.
|
||||||
var buf bytes.Buffer
|
var buf bytes.Buffer
|
||||||
fmt.Fprint(&buf, arg)
|
fmt.Fprint(&buf, arg)
|
||||||
err = c.writeBytes(buf.Bytes())
|
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())
|
||||||
}
|
}
|
||||||
}
|
|
||||||
return err
|
|
||||||
}
|
}
|
||||||
|
|
||||||
type protocolError string
|
type protocolError string
|
||||||
@ -385,10 +443,21 @@ func (pe protocolError) Error() string {
|
|||||||
return fmt.Sprintf("redigo: %s (possible server error or unsupported concurrent read by application)", string(pe))
|
return fmt.Sprintf("redigo: %s (possible server error or unsupported concurrent read by application)", string(pe))
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// readLine reads a line of input from the RESP stream.
|
||||||
func (c *conn) readLine() ([]byte, error) {
|
func (c *conn) readLine() ([]byte, error) {
|
||||||
|
// To avoid allocations, attempt to read the line using ReadSlice. This
|
||||||
|
// call typically succeeds. The known case where the call fails is when
|
||||||
|
// reading the output from the MONITOR command.
|
||||||
p, err := c.br.ReadSlice('\n')
|
p, err := c.br.ReadSlice('\n')
|
||||||
if err == bufio.ErrBufferFull {
|
if err == bufio.ErrBufferFull {
|
||||||
return nil, protocolError("long response line")
|
// The line does not fit in the bufio.Reader's buffer. Fall back to
|
||||||
|
// allocating a buffer for the line.
|
||||||
|
buf := append([]byte{}, p...)
|
||||||
|
for err == bufio.ErrBufferFull {
|
||||||
|
p, err = c.br.ReadSlice('\n')
|
||||||
|
buf = append(buf, p...)
|
||||||
|
}
|
||||||
|
p = buf
|
||||||
}
|
}
|
||||||
if err != nil {
|
if err != nil {
|
||||||
return nil, err
|
return nil, err
|
||||||
@ -538,10 +607,17 @@ func (c *conn) Flush() error {
|
|||||||
return nil
|
return nil
|
||||||
}
|
}
|
||||||
|
|
||||||
func (c *conn) Receive() (reply interface{}, err error) {
|
func (c *conn) Receive() (interface{}, error) {
|
||||||
if c.readTimeout != 0 {
|
return c.ReceiveWithTimeout(c.readTimeout)
|
||||||
c.conn.SetReadDeadline(time.Now().Add(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 {
|
if reply, err = c.readReply(); err != nil {
|
||||||
return nil, c.fatal(err)
|
return nil, c.fatal(err)
|
||||||
}
|
}
|
||||||
@ -564,6 +640,10 @@ func (c *conn) Receive() (reply interface{}, err error) {
|
|||||||
}
|
}
|
||||||
|
|
||||||
func (c *conn) Do(cmd string, args ...interface{}) (interface{}, error) {
|
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()
|
c.mu.Lock()
|
||||||
pending := c.pending
|
pending := c.pending
|
||||||
c.pending = 0
|
c.pending = 0
|
||||||
@ -587,9 +667,11 @@ func (c *conn) Do(cmd string, args ...interface{}) (interface{}, error) {
|
|||||||
return nil, c.fatal(err)
|
return nil, c.fatal(err)
|
||||||
}
|
}
|
||||||
|
|
||||||
if c.readTimeout != 0 {
|
var deadline time.Time
|
||||||
c.conn.SetReadDeadline(time.Now().Add(c.readTimeout))
|
if readTimeout != 0 {
|
||||||
|
deadline = time.Now().Add(readTimeout)
|
||||||
}
|
}
|
||||||
|
c.conn.SetReadDeadline(deadline)
|
||||||
|
|
||||||
if cmd == "" {
|
if cmd == "" {
|
||||||
reply := make([]interface{}, pending)
|
reply := make([]interface{}, pending)
|
@ -14,7 +14,7 @@
|
|||||||
|
|
||||||
// Package redis is a client for the Redis database.
|
// Package redis is a client for the Redis database.
|
||||||
//
|
//
|
||||||
// The Redigo FAQ (https://github.com/garyburd/redigo/wiki/FAQ) contains more
|
// The Redigo FAQ (https://github.com/gomodule/redigo/wiki/FAQ) contains more
|
||||||
// documentation about this package.
|
// documentation about this package.
|
||||||
//
|
//
|
||||||
// Connections
|
// Connections
|
||||||
@ -38,7 +38,7 @@
|
|||||||
//
|
//
|
||||||
// n, err := conn.Do("APPEND", "key", "value")
|
// n, err := conn.Do("APPEND", "key", "value")
|
||||||
//
|
//
|
||||||
// The Do method converts command arguments to binary strings for transmission
|
// The Do method converts command arguments to bulk strings for transmission
|
||||||
// to the server as follows:
|
// to the server as follows:
|
||||||
//
|
//
|
||||||
// Go Type Conversion
|
// Go Type Conversion
|
||||||
@ -48,7 +48,7 @@
|
|||||||
// float64 strconv.FormatFloat(v, 'g', -1, 64)
|
// float64 strconv.FormatFloat(v, 'g', -1, 64)
|
||||||
// bool true -> "1", false -> "0"
|
// bool true -> "1", false -> "0"
|
||||||
// nil ""
|
// nil ""
|
||||||
// all other types fmt.Print(v)
|
// all other types fmt.Fprint(w, v)
|
||||||
//
|
//
|
||||||
// Redis command reply types are represented using the following Go types:
|
// Redis command reply types are represented using the following Go types:
|
||||||
//
|
//
|
||||||
@ -174,4 +174,4 @@
|
|||||||
// non-recoverable error such as a network error or protocol parsing error. If
|
// 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
|
// Err() returns a non-nil value, then the connection is not usable and should
|
||||||
// be closed.
|
// be closed.
|
||||||
package redis // import "github.com/garyburd/redigo/redis"
|
package redis
|
@ -4,11 +4,7 @@ package redis
|
|||||||
|
|
||||||
import "crypto/tls"
|
import "crypto/tls"
|
||||||
|
|
||||||
// similar cloneTLSClientConfig in the stdlib, but also honor skipVerify for the nil case
|
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
|
||||||
func cloneTLSClientConfig(cfg *tls.Config, skipVerify bool) *tls.Config {
|
|
||||||
if cfg == nil {
|
|
||||||
return &tls.Config{InsecureSkipVerify: skipVerify}
|
|
||||||
}
|
|
||||||
return &tls.Config{
|
return &tls.Config{
|
||||||
Rand: cfg.Rand,
|
Rand: cfg.Rand,
|
||||||
Time: cfg.Time,
|
Time: cfg.Time,
|
@ -1,14 +1,10 @@
|
|||||||
// +build go1.7
|
// +build go1.7,!go1.8
|
||||||
|
|
||||||
package redis
|
package redis
|
||||||
|
|
||||||
import "crypto/tls"
|
import "crypto/tls"
|
||||||
|
|
||||||
// similar cloneTLSClientConfig in the stdlib, but also honor skipVerify for the nil case
|
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
|
||||||
func cloneTLSClientConfig(cfg *tls.Config, skipVerify bool) *tls.Config {
|
|
||||||
if cfg == nil {
|
|
||||||
return &tls.Config{InsecureSkipVerify: skipVerify}
|
|
||||||
}
|
|
||||||
return &tls.Config{
|
return &tls.Config{
|
||||||
Rand: cfg.Rand,
|
Rand: cfg.Rand,
|
||||||
Time: cfg.Time,
|
Time: cfg.Time,
|
9
vendor/github.com/gomodule/redigo/redis/go18.go
generated
vendored
Normal file
9
vendor/github.com/gomodule/redigo/redis/go18.go
generated
vendored
Normal file
@ -0,0 +1,9 @@
|
|||||||
|
// +build go1.8
|
||||||
|
|
||||||
|
package redis
|
||||||
|
|
||||||
|
import "crypto/tls"
|
||||||
|
|
||||||
|
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
|
||||||
|
return cfg.Clone()
|
||||||
|
}
|
@ -18,6 +18,11 @@ import (
|
|||||||
"bytes"
|
"bytes"
|
||||||
"fmt"
|
"fmt"
|
||||||
"log"
|
"log"
|
||||||
|
"time"
|
||||||
|
)
|
||||||
|
|
||||||
|
var (
|
||||||
|
_ ConnWithTimeout = (*loggingConn)(nil)
|
||||||
)
|
)
|
||||||
|
|
||||||
// NewLoggingConn returns a logging wrapper around a connection.
|
// NewLoggingConn returns a logging wrapper around a connection.
|
||||||
@ -25,13 +30,22 @@ func NewLoggingConn(conn Conn, logger *log.Logger, prefix string) Conn {
|
|||||||
if prefix != "" {
|
if prefix != "" {
|
||||||
prefix = prefix + "."
|
prefix = prefix + "."
|
||||||
}
|
}
|
||||||
return &loggingConn{conn, logger, prefix}
|
return &loggingConn{conn, logger, prefix, nil}
|
||||||
|
}
|
||||||
|
|
||||||
|
//NewLoggingConnFilter returns a logging wrapper around a connection and a filter function.
|
||||||
|
func NewLoggingConnFilter(conn Conn, logger *log.Logger, prefix string, skip func(cmdName string) bool) Conn {
|
||||||
|
if prefix != "" {
|
||||||
|
prefix = prefix + "."
|
||||||
|
}
|
||||||
|
return &loggingConn{conn, logger, prefix, skip}
|
||||||
}
|
}
|
||||||
|
|
||||||
type loggingConn struct {
|
type loggingConn struct {
|
||||||
Conn
|
Conn
|
||||||
logger *log.Logger
|
logger *log.Logger
|
||||||
prefix string
|
prefix string
|
||||||
|
skip func(cmdName string) bool
|
||||||
}
|
}
|
||||||
|
|
||||||
func (c *loggingConn) Close() error {
|
func (c *loggingConn) Close() error {
|
||||||
@ -80,6 +94,9 @@ func (c *loggingConn) printValue(buf *bytes.Buffer, v interface{}) {
|
|||||||
}
|
}
|
||||||
|
|
||||||
func (c *loggingConn) print(method, commandName string, args []interface{}, reply interface{}, err error) {
|
func (c *loggingConn) print(method, commandName string, args []interface{}, reply interface{}, err error) {
|
||||||
|
if c.skip != nil && c.skip(commandName) {
|
||||||
|
return
|
||||||
|
}
|
||||||
var buf bytes.Buffer
|
var buf bytes.Buffer
|
||||||
fmt.Fprintf(&buf, "%s%s(", c.prefix, method)
|
fmt.Fprintf(&buf, "%s%s(", c.prefix, method)
|
||||||
if method != "Receive" {
|
if method != "Receive" {
|
||||||
@ -104,6 +121,12 @@ func (c *loggingConn) Do(commandName string, args ...interface{}) (interface{},
|
|||||||
return 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 {
|
func (c *loggingConn) Send(commandName string, args ...interface{}) error {
|
||||||
err := c.Conn.Send(commandName, args...)
|
err := c.Conn.Send(commandName, args...)
|
||||||
c.print("Send", commandName, args, nil, err)
|
c.print("Send", commandName, args, nil, err)
|
||||||
@ -115,3 +138,9 @@ func (c *loggingConn) Receive() (interface{}, error) {
|
|||||||
c.print("Receive", "", nil, reply, err)
|
c.print("Receive", "", nil, reply, err)
|
||||||
return 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
|
||||||
|
}
|
560
vendor/github.com/gomodule/redigo/redis/pool.go
generated
vendored
Normal file
560
vendor/github.com/gomodule/redigo/redis/pool.go
generated
vendored
Normal file
@ -0,0 +1,560 @@
|
|||||||
|
// 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"
|
||||||
|
)
|
||||||
|
|
||||||
|
var (
|
||||||
|
_ ConnWithTimeout = (*activeConn)(nil)
|
||||||
|
_ ConnWithTimeout = (*errorConn)(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
|
||||||
|
|
||||||
|
// Close connections older than this duration. If the value is zero, then
|
||||||
|
// the pool does not close connections based on age.
|
||||||
|
MaxConnLifetime time.Duration
|
||||||
|
|
||||||
|
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 {
|
||||||
|
pc, err := p.get(nil)
|
||||||
|
if err != nil {
|
||||||
|
return errorConn{err}
|
||||||
|
}
|
||||||
|
return &activeConn{p: p, pc: pc}
|
||||||
|
}
|
||||||
|
|
||||||
|
// 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
|
||||||
|
pc := 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 ; pc != nil; pc = pc.next {
|
||||||
|
pc.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
|
||||||
|
}) (*poolConn, 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++ {
|
||||||
|
pc := p.idle.back
|
||||||
|
p.idle.popBack()
|
||||||
|
p.mu.Unlock()
|
||||||
|
pc.c.Close()
|
||||||
|
p.mu.Lock()
|
||||||
|
p.active--
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Get idle connection from the front of idle list.
|
||||||
|
for p.idle.front != nil {
|
||||||
|
pc := p.idle.front
|
||||||
|
p.idle.popFront()
|
||||||
|
p.mu.Unlock()
|
||||||
|
if (p.TestOnBorrow == nil || p.TestOnBorrow(pc.c, pc.t) == nil) &&
|
||||||
|
(p.MaxConnLifetime == 0 || nowFunc().Sub(pc.created) < p.MaxConnLifetime) {
|
||||||
|
return pc, nil
|
||||||
|
}
|
||||||
|
pc.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 &poolConn{c: c, created: nowFunc()}, err
|
||||||
|
}
|
||||||
|
|
||||||
|
func (p *Pool) put(pc *poolConn, forceClose bool) error {
|
||||||
|
p.mu.Lock()
|
||||||
|
if !p.closed && !forceClose {
|
||||||
|
pc.t = nowFunc()
|
||||||
|
p.idle.pushFront(pc)
|
||||||
|
if p.idle.count > p.MaxIdle {
|
||||||
|
pc = p.idle.back
|
||||||
|
p.idle.popBack()
|
||||||
|
} else {
|
||||||
|
pc = nil
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if pc != nil {
|
||||||
|
p.mu.Unlock()
|
||||||
|
pc.c.Close()
|
||||||
|
p.mu.Lock()
|
||||||
|
p.active--
|
||||||
|
}
|
||||||
|
|
||||||
|
if p.ch != nil && !p.closed {
|
||||||
|
p.ch <- struct{}{}
|
||||||
|
}
|
||||||
|
p.mu.Unlock()
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
type activeConn struct {
|
||||||
|
p *Pool
|
||||||
|
pc *poolConn
|
||||||
|
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 (ac *activeConn) Close() error {
|
||||||
|
pc := ac.pc
|
||||||
|
if pc == nil {
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
ac.pc = nil
|
||||||
|
|
||||||
|
if ac.state&connectionMultiState != 0 {
|
||||||
|
pc.c.Send("DISCARD")
|
||||||
|
ac.state &^= (connectionMultiState | connectionWatchState)
|
||||||
|
} else if ac.state&connectionWatchState != 0 {
|
||||||
|
pc.c.Send("UNWATCH")
|
||||||
|
ac.state &^= connectionWatchState
|
||||||
|
}
|
||||||
|
if ac.state&connectionSubscribeState != 0 {
|
||||||
|
pc.c.Send("UNSUBSCRIBE")
|
||||||
|
pc.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)
|
||||||
|
pc.c.Send("ECHO", sentinel)
|
||||||
|
pc.c.Flush()
|
||||||
|
for {
|
||||||
|
p, err := pc.c.Receive()
|
||||||
|
if err != nil {
|
||||||
|
break
|
||||||
|
}
|
||||||
|
if p, ok := p.([]byte); ok && bytes.Equal(p, sentinel) {
|
||||||
|
ac.state &^= connectionSubscribeState
|
||||||
|
break
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
pc.c.Do("")
|
||||||
|
ac.p.put(pc, ac.state != 0 || pc.c.Err() != nil)
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (ac *activeConn) Err() error {
|
||||||
|
pc := ac.pc
|
||||||
|
if pc == nil {
|
||||||
|
return errConnClosed
|
||||||
|
}
|
||||||
|
return pc.c.Err()
|
||||||
|
}
|
||||||
|
|
||||||
|
func (ac *activeConn) Do(commandName string, args ...interface{}) (reply interface{}, err error) {
|
||||||
|
pc := ac.pc
|
||||||
|
if pc == nil {
|
||||||
|
return nil, errConnClosed
|
||||||
|
}
|
||||||
|
ci := lookupCommandInfo(commandName)
|
||||||
|
ac.state = (ac.state | ci.Set) &^ ci.Clear
|
||||||
|
return pc.c.Do(commandName, args...)
|
||||||
|
}
|
||||||
|
|
||||||
|
func (ac *activeConn) DoWithTimeout(timeout time.Duration, commandName string, args ...interface{}) (reply interface{}, err error) {
|
||||||
|
pc := ac.pc
|
||||||
|
if pc == nil {
|
||||||
|
return nil, errConnClosed
|
||||||
|
}
|
||||||
|
cwt, ok := pc.c.(ConnWithTimeout)
|
||||||
|
if !ok {
|
||||||
|
return nil, errTimeoutNotSupported
|
||||||
|
}
|
||||||
|
ci := lookupCommandInfo(commandName)
|
||||||
|
ac.state = (ac.state | ci.Set) &^ ci.Clear
|
||||||
|
return cwt.DoWithTimeout(timeout, commandName, args...)
|
||||||
|
}
|
||||||
|
|
||||||
|
func (ac *activeConn) Send(commandName string, args ...interface{}) error {
|
||||||
|
pc := ac.pc
|
||||||
|
if pc == nil {
|
||||||
|
return errConnClosed
|
||||||
|
}
|
||||||
|
ci := lookupCommandInfo(commandName)
|
||||||
|
ac.state = (ac.state | ci.Set) &^ ci.Clear
|
||||||
|
return pc.c.Send(commandName, args...)
|
||||||
|
}
|
||||||
|
|
||||||
|
func (ac *activeConn) Flush() error {
|
||||||
|
pc := ac.pc
|
||||||
|
if pc == nil {
|
||||||
|
return errConnClosed
|
||||||
|
}
|
||||||
|
return pc.c.Flush()
|
||||||
|
}
|
||||||
|
|
||||||
|
func (ac *activeConn) Receive() (reply interface{}, err error) {
|
||||||
|
pc := ac.pc
|
||||||
|
if pc == nil {
|
||||||
|
return nil, errConnClosed
|
||||||
|
}
|
||||||
|
return pc.c.Receive()
|
||||||
|
}
|
||||||
|
|
||||||
|
func (ac *activeConn) ReceiveWithTimeout(timeout time.Duration) (reply interface{}, err error) {
|
||||||
|
pc := ac.pc
|
||||||
|
if pc == nil {
|
||||||
|
return nil, errConnClosed
|
||||||
|
}
|
||||||
|
cwt, ok := pc.c.(ConnWithTimeout)
|
||||||
|
if !ok {
|
||||||
|
return nil, errTimeoutNotSupported
|
||||||
|
}
|
||||||
|
return cwt.ReceiveWithTimeout(timeout)
|
||||||
|
}
|
||||||
|
|
||||||
|
type errorConn struct{ err error }
|
||||||
|
|
||||||
|
func (ec errorConn) Do(string, ...interface{}) (interface{}, error) { return nil, ec.err }
|
||||||
|
func (ec errorConn) DoWithTimeout(time.Duration, string, ...interface{}) (interface{}, error) {
|
||||||
|
return nil, ec.err
|
||||||
|
}
|
||||||
|
func (ec errorConn) Send(string, ...interface{}) error { return ec.err }
|
||||||
|
func (ec errorConn) Err() error { return ec.err }
|
||||||
|
func (ec errorConn) Close() error { return nil }
|
||||||
|
func (ec errorConn) Flush() error { return ec.err }
|
||||||
|
func (ec errorConn) Receive() (interface{}, error) { return nil, ec.err }
|
||||||
|
func (ec errorConn) ReceiveWithTimeout(time.Duration) (interface{}, error) { return nil, ec.err }
|
||||||
|
|
||||||
|
type idleList struct {
|
||||||
|
count int
|
||||||
|
front, back *poolConn
|
||||||
|
}
|
||||||
|
|
||||||
|
type poolConn struct {
|
||||||
|
c Conn
|
||||||
|
t time.Time
|
||||||
|
created time.Time
|
||||||
|
next, prev *poolConn
|
||||||
|
}
|
||||||
|
|
||||||
|
func (l *idleList) pushFront(pc *poolConn) {
|
||||||
|
pc.next = l.front
|
||||||
|
pc.prev = nil
|
||||||
|
if l.count == 0 {
|
||||||
|
l.back = pc
|
||||||
|
} else {
|
||||||
|
l.front.prev = pc
|
||||||
|
}
|
||||||
|
l.front = pc
|
||||||
|
l.count++
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
func (l *idleList) popFront() {
|
||||||
|
pc := l.front
|
||||||
|
l.count--
|
||||||
|
if l.count == 0 {
|
||||||
|
l.front, l.back = nil, nil
|
||||||
|
} else {
|
||||||
|
pc.next.prev = nil
|
||||||
|
l.front = pc.next
|
||||||
|
}
|
||||||
|
pc.next, pc.prev = nil, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (l *idleList) popBack() {
|
||||||
|
pc := l.back
|
||||||
|
l.count--
|
||||||
|
if l.count == 0 {
|
||||||
|
l.front, l.back = nil, nil
|
||||||
|
} else {
|
||||||
|
pc.prev.next = nil
|
||||||
|
l.back = pc.prev
|
||||||
|
}
|
||||||
|
pc.next, pc.prev = nil, nil
|
||||||
|
}
|
35
vendor/github.com/gomodule/redigo/redis/pool17.go
generated
vendored
Normal file
35
vendor/github.com/gomodule/redigo/redis/pool17.go
generated
vendored
Normal file
@ -0,0 +1,35 @@
|
|||||||
|
// 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) {
|
||||||
|
pc, err := p.get(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return errorConn{err}, err
|
||||||
|
}
|
||||||
|
return &activeConn{p: p, pc: pc}, nil
|
||||||
|
}
|
@ -14,11 +14,13 @@
|
|||||||
|
|
||||||
package redis
|
package redis
|
||||||
|
|
||||||
import "errors"
|
import (
|
||||||
|
"errors"
|
||||||
|
"time"
|
||||||
|
)
|
||||||
|
|
||||||
// Subscription represents a subscribe or unsubscribe notification.
|
// Subscription represents a subscribe or unsubscribe notification.
|
||||||
type Subscription struct {
|
type Subscription struct {
|
||||||
|
|
||||||
// Kind is "subscribe", "unsubscribe", "psubscribe" or "punsubscribe"
|
// Kind is "subscribe", "unsubscribe", "psubscribe" or "punsubscribe"
|
||||||
Kind string
|
Kind string
|
||||||
|
|
||||||
@ -31,23 +33,12 @@ type Subscription struct {
|
|||||||
|
|
||||||
// Message represents a message notification.
|
// Message represents a message notification.
|
||||||
type Message struct {
|
type Message struct {
|
||||||
|
|
||||||
// The originating channel.
|
// The originating channel.
|
||||||
Channel string
|
Channel string
|
||||||
|
|
||||||
// The message data.
|
// The matched pattern, if any
|
||||||
Data []byte
|
|
||||||
}
|
|
||||||
|
|
||||||
// PMessage represents a pmessage notification.
|
|
||||||
type PMessage struct {
|
|
||||||
|
|
||||||
// The matched pattern.
|
|
||||||
Pattern string
|
Pattern string
|
||||||
|
|
||||||
// The originating channel.
|
|
||||||
Channel string
|
|
||||||
|
|
||||||
// The message data.
|
// The message data.
|
||||||
Data []byte
|
Data []byte
|
||||||
}
|
}
|
||||||
@ -94,16 +85,29 @@ func (c PubSubConn) PUnsubscribe(channel ...interface{}) error {
|
|||||||
}
|
}
|
||||||
|
|
||||||
// Ping sends a PING to the server with the specified data.
|
// 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 {
|
func (c PubSubConn) Ping(data string) error {
|
||||||
c.Conn.Send("PING", data)
|
c.Conn.Send("PING", data)
|
||||||
return c.Conn.Flush()
|
return c.Conn.Flush()
|
||||||
}
|
}
|
||||||
|
|
||||||
// Receive returns a pushed message as a Subscription, Message, PMessage, Pong
|
// Receive returns a pushed message as a Subscription, Message, Pong or error.
|
||||||
// or error. The return value is intended to be used directly in a type switch
|
// The return value is intended to be used directly in a type switch as
|
||||||
// as illustrated in the PubSubConn example.
|
// illustrated in the PubSubConn example.
|
||||||
func (c PubSubConn) Receive() interface{} {
|
func (c PubSubConn) Receive() interface{} {
|
||||||
reply, err := Values(c.Conn.Receive())
|
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 {
|
if err != nil {
|
||||||
return err
|
return err
|
||||||
}
|
}
|
||||||
@ -122,11 +126,11 @@ func (c PubSubConn) Receive() interface{} {
|
|||||||
}
|
}
|
||||||
return m
|
return m
|
||||||
case "pmessage":
|
case "pmessage":
|
||||||
var pm PMessage
|
var m Message
|
||||||
if _, err := Scan(reply, &pm.Pattern, &pm.Channel, &pm.Data); err != nil {
|
if _, err := Scan(reply, &m.Pattern, &m.Channel, &m.Data); err != nil {
|
||||||
return err
|
return err
|
||||||
}
|
}
|
||||||
return pm
|
return m
|
||||||
case "subscribe", "psubscribe", "unsubscribe", "punsubscribe":
|
case "subscribe", "psubscribe", "unsubscribe", "punsubscribe":
|
||||||
s := Subscription{Kind: kind}
|
s := Subscription{Kind: kind}
|
||||||
if _, err := Scan(reply, &s.Channel, &s.Count); err != nil {
|
if _, err := Scan(reply, &s.Channel, &s.Count); err != nil {
|
117
vendor/github.com/gomodule/redigo/redis/redis.go
generated
vendored
Normal file
117
vendor/github.com/gomodule/redigo/redis/redis.go
generated
vendored
Normal file
@ -0,0 +1,117 @@
|
|||||||
|
// 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)
|
||||||
|
}
|
@ -243,34 +243,67 @@ func Values(reply interface{}, err error) ([]interface{}, error) {
|
|||||||
return nil, fmt.Errorf("redigo: unexpected type for Values, got type %T", 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
|
// 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
|
// 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
|
// converted to "" in the output slice. Strings returns an error if an array
|
||||||
// item is not a bulk string or nil.
|
// item is not a bulk string or nil.
|
||||||
func Strings(reply interface{}, err error) ([]string, error) {
|
func Strings(reply interface{}, err error) ([]string, error) {
|
||||||
if err != nil {
|
var result []string
|
||||||
return nil, err
|
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)
|
||||||
}
|
}
|
||||||
switch reply := reply.(type) {
|
})
|
||||||
case []interface{}:
|
return result, err
|
||||||
result := make([]string, len(reply))
|
|
||||||
for i := range reply {
|
|
||||||
if reply[i] == nil {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
p, ok := reply[i].([]byte)
|
|
||||||
if !ok {
|
|
||||||
return nil, fmt.Errorf("redigo: unexpected element type for Strings, got type %T", reply[i])
|
|
||||||
}
|
|
||||||
result[i] = string(p)
|
|
||||||
}
|
|
||||||
return result, nil
|
|
||||||
case nil:
|
|
||||||
return nil, ErrNil
|
|
||||||
case Error:
|
|
||||||
return nil, reply
|
|
||||||
}
|
|
||||||
return nil, fmt.Errorf("redigo: unexpected type for Strings, got type %T", reply)
|
|
||||||
}
|
}
|
||||||
|
|
||||||
// ByteSlices is a helper that converts an array command reply to a [][]byte.
|
// ByteSlices is a helper that converts an array command reply to a [][]byte.
|
||||||
@ -278,43 +311,64 @@ func Strings(reply interface{}, err error) ([]string, error) {
|
|||||||
// items are stay nil. ByteSlices returns an error if an array item is not a
|
// items are stay nil. ByteSlices returns an error if an array item is not a
|
||||||
// bulk string or nil.
|
// bulk string or nil.
|
||||||
func ByteSlices(reply interface{}, err error) ([][]byte, error) {
|
func ByteSlices(reply interface{}, err error) ([][]byte, error) {
|
||||||
if err != nil {
|
var result [][]byte
|
||||||
return nil, err
|
err = sliceHelper(reply, err, "ByteSlices", func(n int) { result = make([][]byte, n) }, func(i int, v interface{}) error {
|
||||||
}
|
p, ok := v.([]byte)
|
||||||
switch reply := reply.(type) {
|
|
||||||
case []interface{}:
|
|
||||||
result := make([][]byte, len(reply))
|
|
||||||
for i := range reply {
|
|
||||||
if reply[i] == nil {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
p, ok := reply[i].([]byte)
|
|
||||||
if !ok {
|
if !ok {
|
||||||
return nil, fmt.Errorf("redigo: unexpected element type for ByteSlices, got type %T", reply[i])
|
return fmt.Errorf("redigo: unexpected element type for ByteSlices, got type %T", v)
|
||||||
}
|
}
|
||||||
result[i] = p
|
result[i] = p
|
||||||
}
|
return nil
|
||||||
return result, nil
|
})
|
||||||
case nil:
|
return result, err
|
||||||
return nil, ErrNil
|
|
||||||
case Error:
|
|
||||||
return nil, reply
|
|
||||||
}
|
|
||||||
return nil, fmt.Errorf("redigo: unexpected type for ByteSlices, got type %T", reply)
|
|
||||||
}
|
}
|
||||||
|
|
||||||
// Ints is a helper that converts an array command reply to a []int. If
|
// Int64s is a helper that converts an array command reply to a []int64.
|
||||||
// err is not equal to nil, then Ints returns nil, err.
|
// 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) {
|
func Ints(reply interface{}, err error) ([]int, error) {
|
||||||
var ints []int
|
var result []int
|
||||||
values, err := Values(reply, err)
|
err = sliceHelper(reply, err, "Ints", func(n int) { result = make([]int, n) }, func(i int, v interface{}) error {
|
||||||
if err != nil {
|
switch v := v.(type) {
|
||||||
return ints, err
|
case int64:
|
||||||
|
n := int(v)
|
||||||
|
if int64(n) != v {
|
||||||
|
return strconv.ErrRange
|
||||||
}
|
}
|
||||||
if err := ScanSlice(values, &ints); err != nil {
|
result[i] = n
|
||||||
return ints, err
|
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 ints, nil
|
})
|
||||||
|
return result, err
|
||||||
}
|
}
|
||||||
|
|
||||||
// StringMap is a helper that converts an array of strings (alternating key, value)
|
// StringMap is a helper that converts an array of strings (alternating key, value)
|
||||||
@ -333,7 +387,7 @@ func StringMap(result interface{}, err error) (map[string]string, error) {
|
|||||||
key, okKey := values[i].([]byte)
|
key, okKey := values[i].([]byte)
|
||||||
value, okValue := values[i+1].([]byte)
|
value, okValue := values[i+1].([]byte)
|
||||||
if !okKey || !okValue {
|
if !okKey || !okValue {
|
||||||
return nil, errors.New("redigo: ScanMap key not a bulk string value")
|
return nil, errors.New("redigo: StringMap key not a bulk string value")
|
||||||
}
|
}
|
||||||
m[string(key)] = string(value)
|
m[string(key)] = string(value)
|
||||||
}
|
}
|
||||||
@ -355,7 +409,7 @@ func IntMap(result interface{}, err error) (map[string]int, error) {
|
|||||||
for i := 0; i < len(values); i += 2 {
|
for i := 0; i < len(values); i += 2 {
|
||||||
key, ok := values[i].([]byte)
|
key, ok := values[i].([]byte)
|
||||||
if !ok {
|
if !ok {
|
||||||
return nil, errors.New("redigo: ScanMap key not a bulk string value")
|
return nil, errors.New("redigo: IntMap key not a bulk string value")
|
||||||
}
|
}
|
||||||
value, err := Int(values[i+1], nil)
|
value, err := Int(values[i+1], nil)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
@ -381,7 +435,7 @@ func Int64Map(result interface{}, err error) (map[string]int64, error) {
|
|||||||
for i := 0; i < len(values); i += 2 {
|
for i := 0; i < len(values); i += 2 {
|
||||||
key, ok := values[i].([]byte)
|
key, ok := values[i].([]byte)
|
||||||
if !ok {
|
if !ok {
|
||||||
return nil, errors.New("redigo: ScanMap key not a bulk string value")
|
return nil, errors.New("redigo: Int64Map key not a bulk string value")
|
||||||
}
|
}
|
||||||
value, err := Int64(values[i+1], nil)
|
value, err := Int64(values[i+1], nil)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
@ -391,3 +445,35 @@ func Int64Map(result interface{}, err error) (map[string]int64, error) {
|
|||||||
}
|
}
|
||||||
return m, nil
|
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
|
||||||
|
}
|
@ -44,37 +44,50 @@ func cannotConvert(d reflect.Value, s interface{}) error {
|
|||||||
sname = "Redis bulk string"
|
sname = "Redis bulk string"
|
||||||
case []interface{}:
|
case []interface{}:
|
||||||
sname = "Redis array"
|
sname = "Redis array"
|
||||||
|
case nil:
|
||||||
|
sname = "Redis nil"
|
||||||
default:
|
default:
|
||||||
sname = reflect.TypeOf(s).String()
|
sname = reflect.TypeOf(s).String()
|
||||||
}
|
}
|
||||||
return fmt.Errorf("cannot convert from %s to %s", sname, d.Type())
|
return fmt.Errorf("cannot convert from %s to %s", sname, d.Type())
|
||||||
}
|
}
|
||||||
|
|
||||||
func convertAssignBulkString(d reflect.Value, s []byte) (err error) {
|
func convertAssignError(d reflect.Value, s Error) (err error) {
|
||||||
|
if d.Kind() == reflect.String {
|
||||||
|
d.SetString(string(s))
|
||||||
|
} else if d.Kind() == reflect.Slice && d.Type().Elem().Kind() == reflect.Uint8 {
|
||||||
|
d.SetBytes([]byte(s))
|
||||||
|
} else {
|
||||||
|
err = cannotConvert(d, s)
|
||||||
|
}
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
func convertAssignString(d reflect.Value, s string) (err error) {
|
||||||
switch d.Type().Kind() {
|
switch d.Type().Kind() {
|
||||||
case reflect.Float32, reflect.Float64:
|
case reflect.Float32, reflect.Float64:
|
||||||
var x float64
|
var x float64
|
||||||
x, err = strconv.ParseFloat(string(s), d.Type().Bits())
|
x, err = strconv.ParseFloat(s, d.Type().Bits())
|
||||||
d.SetFloat(x)
|
d.SetFloat(x)
|
||||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||||
var x int64
|
var x int64
|
||||||
x, err = strconv.ParseInt(string(s), 10, d.Type().Bits())
|
x, err = strconv.ParseInt(s, 10, d.Type().Bits())
|
||||||
d.SetInt(x)
|
d.SetInt(x)
|
||||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
||||||
var x uint64
|
var x uint64
|
||||||
x, err = strconv.ParseUint(string(s), 10, d.Type().Bits())
|
x, err = strconv.ParseUint(s, 10, d.Type().Bits())
|
||||||
d.SetUint(x)
|
d.SetUint(x)
|
||||||
case reflect.Bool:
|
case reflect.Bool:
|
||||||
var x bool
|
var x bool
|
||||||
x, err = strconv.ParseBool(string(s))
|
x, err = strconv.ParseBool(s)
|
||||||
d.SetBool(x)
|
d.SetBool(x)
|
||||||
case reflect.String:
|
case reflect.String:
|
||||||
d.SetString(string(s))
|
d.SetString(s)
|
||||||
case reflect.Slice:
|
case reflect.Slice:
|
||||||
if d.Type().Elem().Kind() != reflect.Uint8 {
|
if d.Type().Elem().Kind() == reflect.Uint8 {
|
||||||
err = cannotConvert(d, s)
|
d.SetBytes([]byte(s))
|
||||||
} else {
|
} else {
|
||||||
d.SetBytes(s)
|
err = cannotConvert(d, s)
|
||||||
}
|
}
|
||||||
default:
|
default:
|
||||||
err = cannotConvert(d, s)
|
err = cannotConvert(d, s)
|
||||||
@ -82,6 +95,22 @@ func convertAssignBulkString(d reflect.Value, s []byte) (err error) {
|
|||||||
return
|
return
|
||||||
}
|
}
|
||||||
|
|
||||||
|
func convertAssignBulkString(d reflect.Value, s []byte) (err error) {
|
||||||
|
switch d.Type().Kind() {
|
||||||
|
case reflect.Slice:
|
||||||
|
// Handle []byte destination here to avoid unnecessary
|
||||||
|
// []byte -> string -> []byte converion.
|
||||||
|
if d.Type().Elem().Kind() == reflect.Uint8 {
|
||||||
|
d.SetBytes(s)
|
||||||
|
} else {
|
||||||
|
err = cannotConvert(d, s)
|
||||||
|
}
|
||||||
|
default:
|
||||||
|
err = convertAssignString(d, string(s))
|
||||||
|
}
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
func convertAssignInt(d reflect.Value, s int64) (err error) {
|
func convertAssignInt(d reflect.Value, s int64) (err error) {
|
||||||
switch d.Type().Kind() {
|
switch d.Type().Kind() {
|
||||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||||
@ -110,11 +139,34 @@ func convertAssignInt(d reflect.Value, s int64) (err error) {
|
|||||||
}
|
}
|
||||||
|
|
||||||
func convertAssignValue(d reflect.Value, s interface{}) (err error) {
|
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) {
|
switch s := s.(type) {
|
||||||
case []byte:
|
case []byte:
|
||||||
err = convertAssignBulkString(d, s)
|
err = convertAssignBulkString(d, s)
|
||||||
case int64:
|
case int64:
|
||||||
err = convertAssignInt(d, s)
|
err = convertAssignInt(d, s)
|
||||||
|
case string:
|
||||||
|
err = convertAssignString(d, s)
|
||||||
|
case Error:
|
||||||
|
err = convertAssignError(d, s)
|
||||||
default:
|
default:
|
||||||
err = cannotConvert(d, s)
|
err = cannotConvert(d, s)
|
||||||
}
|
}
|
||||||
@ -135,11 +187,15 @@ func convertAssignArray(d reflect.Value, s []interface{}) error {
|
|||||||
}
|
}
|
||||||
|
|
||||||
func convertAssign(d interface{}, s interface{}) (err error) {
|
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
|
// Handle the most common destination types using type switches and
|
||||||
// fall back to reflection for all other types.
|
// fall back to reflection for all other types.
|
||||||
switch s := s.(type) {
|
switch s := s.(type) {
|
||||||
case nil:
|
case nil:
|
||||||
// ingore
|
// ignore
|
||||||
case []byte:
|
case []byte:
|
||||||
switch d := d.(type) {
|
switch d := d.(type) {
|
||||||
case *string:
|
case *string:
|
||||||
@ -186,7 +242,11 @@ func convertAssign(d interface{}, s interface{}) (err error) {
|
|||||||
case string:
|
case string:
|
||||||
switch d := d.(type) {
|
switch d := d.(type) {
|
||||||
case *string:
|
case *string:
|
||||||
*d = string(s)
|
*d = s
|
||||||
|
case *interface{}:
|
||||||
|
*d = s
|
||||||
|
case nil:
|
||||||
|
// skip value
|
||||||
default:
|
default:
|
||||||
err = cannotConvert(reflect.ValueOf(d), s)
|
err = cannotConvert(reflect.ValueOf(d), s)
|
||||||
}
|
}
|
||||||
@ -215,6 +275,8 @@ func convertAssign(d interface{}, s interface{}) (err error) {
|
|||||||
|
|
||||||
// Scan copies from src to the values pointed at by dest.
|
// 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,
|
// 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
|
// []byte, interface{} or slices of these types. Scan uses the standard strconv
|
||||||
// package to convert bulk strings to numeric and boolean types.
|
// package to convert bulk strings to numeric and boolean types.
|
||||||
@ -355,6 +417,7 @@ var errScanStructValue = errors.New("redigo.ScanStruct: value must be non-nil po
|
|||||||
//
|
//
|
||||||
// Fields with the tag redis:"-" are ignored.
|
// 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
|
// Integer, float, boolean, string and []byte fields are supported. Scan uses the
|
||||||
// standard strconv package to convert bulk string values to numeric and
|
// standard strconv package to convert bulk string values to numeric and
|
||||||
// boolean types.
|
// boolean types.
|
@ -55,6 +55,11 @@ func (s *Script) args(spec string, keysAndArgs []interface{}) []interface{} {
|
|||||||
return args
|
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
|
// Do evaluates the script. Under the covers, Do optimistically evaluates the
|
||||||
// script using the EVALSHA command. If the command fails because the script is
|
// 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
|
// not loaded, then Do evaluates the script using the EVAL command (thus
|
12
vendor/vendor.json
vendored
12
vendor/vendor.json
vendored
@ -303,12 +303,6 @@
|
|||||||
"revision": "0d253a66e6e1349f4581d6d2b300ee434ee2da9f",
|
"revision": "0d253a66e6e1349f4581d6d2b300ee434ee2da9f",
|
||||||
"revisionTime": "2017-02-16T21:49:44Z"
|
"revisionTime": "2017-02-16T21:49:44Z"
|
||||||
},
|
},
|
||||||
{
|
|
||||||
"checksumSHA1": "81OSg/NapmTaRpSS+oYsPVE0b1Y=",
|
|
||||||
"path": "github.com/garyburd/redigo/redis",
|
|
||||||
"revision": "0d253a66e6e1349f4581d6d2b300ee434ee2da9f",
|
|
||||||
"revisionTime": "2017-02-16T21:49:44Z"
|
|
||||||
},
|
|
||||||
{
|
{
|
||||||
"checksumSHA1": "+IH9gXMht4fL/fxKRZ4sqGBps1g=",
|
"checksumSHA1": "+IH9gXMht4fL/fxKRZ4sqGBps1g=",
|
||||||
"path": "github.com/go-ini/ini",
|
"path": "github.com/go-ini/ini",
|
||||||
@ -381,6 +375,12 @@
|
|||||||
"revision": "2e65f85255dbc3072edf28d6b5b8efc472979f5a",
|
"revision": "2e65f85255dbc3072edf28d6b5b8efc472979f5a",
|
||||||
"revisionTime": "2018-05-18T05:39:59Z"
|
"revisionTime": "2018-05-18T05:39:59Z"
|
||||||
},
|
},
|
||||||
|
{
|
||||||
|
"checksumSHA1": "umngZiUg6r0nzonwk/rSEpykaVk=",
|
||||||
|
"path": "github.com/gomodule/redigo/redis",
|
||||||
|
"revision": "43fe51054af5fb7acdc89c38a3f8098fbf997a53",
|
||||||
|
"revisionTime": "2019-02-05T13:53:52Z"
|
||||||
|
},
|
||||||
{
|
{
|
||||||
"checksumSHA1": "0x0CoHbgoWngucjKSDPFodeL8ek=",
|
"checksumSHA1": "0x0CoHbgoWngucjKSDPFodeL8ek=",
|
||||||
"path": "github.com/googleapis/gax-go",
|
"path": "github.com/googleapis/gax-go",
|
||||||
|
Loading…
Reference in New Issue
Block a user