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pool's Introduction

pool

GoDoc

Golang 实现的连接池

功能:

  • 连接池中连接类型为interface{},使得更加通用
  • 连接的最大空闲时间,超时的连接将关闭丢弃,可避免空闲时连接自动失效问题
  • 支持用户设定 ping 方法,检查连接的连通性,无效的连接将丢弃
  • 使用channel处理池中的连接,高效

基本用法

//factory 创建连接的方法
factory := func() (interface{}, error) { return net.Dial("tcp", "127.0.0.1:4000") }

//close 关闭连接的方法
close := func(v interface{}) error { return v.(net.Conn).Close() }

//ping 检测连接的方法
//ping := func(v interface{}) error { return nil }

//创建一个连接池: 初始化5,最大连接30
poolConfig := &pool.PoolConfig{
	InitialCap: 5,
	MaxCap:     30,
	Factory:    factory,
	Close:      close,
	//Ping:       ping,
	//连接最大空闲时间,超过该时间的连接 将会关闭,可避免空闲时连接EOF,自动失效的问题
	IdleTimeout: 15 * time.Second,
}
p, err := pool.NewChannelPool(poolConfig)
if err != nil {
	fmt.Println("err=", err)
}

//从连接池中取得一个连接
v, err := p.Get()

//do something
//conn=v.(net.Conn)

//将连接放回连接池中
p.Put(v)

//释放连接池中的所有连接
p.Release()

//查看当前连接中的数量
current := p.Len()

实现流程

avatar

注:

该连接池参考 https://github.com/fatih/pool 实现,改变以及增加原有的一些功能。

License

The MIT License (MIT) - see LICENSE for more details

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