doumu9019 2016-05-17 13:15
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Golang-UDP连接关闭时,优雅地停止ReadFromUDP

So, we have a full-duplex system setup that utilizes channels and different goroutines for UDP packet processing (reading, writing, handling). Thus, we block at ReadFromUDP while waiting for incoming packets in a goroutine.

We have this peculiar problem with ReadFromUDP throwing an error (obviously) while waiting for a packet to arrive and the connection is being closed elsewhere.

The error that is printed is the following:

read udp 127.0.0.1:8091: use of closed network connection

This is quite reasonable since we actually close the connection in another goroutine via channels.

Is there anyone who knows if there exists a way of not getting that error (other than catching it) when this occurs or if there exists another way to signal ReadFromUDP to stop reading, without using timeouts?

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