服务重连的实现方法

//启动MQ消息监听服务
//重连的实现方法
func (i *Listener) Start() (err error) {
    i.done = make(chan interface{}, i.workerNum)  //确认每个协程是否结束
    rechan := make(chan interface{}, i.workerNum)  //重连标识位
    running := true
    for k := 0; k < i.workerNum; k++ {
        go ListenMsg(i.done, rechan, &running)
    }
    go reConnect(i, rechan)   //启动重连协程
    return nil
}

func ListenMsg(done chan<- interface{}, rechan chan<- interface{}, run *bool) {
    defer done <- struct{}{}
    msgs := Consume()
    process := func() {
        if *run == false {
            return
        }
        msg, ok := <-msgs
        if !ok {
            *run = false
            rechan <- struct{}{} //启动重连
        }
        //do something
    }
    
    for *run {
        process()
    }
}

func reConnect(i *Listener, rechan <-chan interface{}) {
    <-rechan
    //采用斐波那契数列的时间间隔来重连
    for !i.closed {
        err := i.Start()
        if err != nil {
            time.Sleep(fibonacci.time)
        } else {
            return
        }
    }
}

func (i *Listener) Close() {
    //等待所有监听队列的协程结束
    for i := 0; i < i.workerNum; i++ {
        <-i.done
    }
}