zzzming commented on pull request #366:
URL: https://github.com/apache/pulsar-client-go/pull/366#issuecomment-699022423


   @jiazhai How about move the consumer and producer listener's 
ConnectionClosed() code  
https://github.com/apache/pulsar-client-go/blob/master/pulsar/internal/connection.go#L763
   
   to 
https://github.com/apache/pulsar-client-go/blob/master/pulsar/internal/connection.go#L372
   
   I hope that can guarantee close of handlers. It becomes something like
   ```
        go func() {
                for {
                        select {
                        case <-c.closeCh:
                                c.log.Info("1st go loop closeCh")
                                consumerHandlers := 
make(map[uint64]ConsumerHandler)
                                c.consumerHandlersLock.RLock()
                                for id, handler := range c.consumerHandlers {
                                        consumerHandlers[id] = handler
                                }
                                c.consumerHandlersLock.RUnlock()
   
                                for _, handler := range consumerHandlers {
                                        handler.ConnectionClosed()
                                }
   
                                return
   
                        case req := <-c.incomingRequestsCh:
                                if req == nil {
                                        return // TODO: this never gonna be 
happen
                                }
                                c.internalSendRequest(req)
                        }
                }
        }()
   ```


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