In Golang, i can close
a TCPListener
, however, i can not tell whether a TCPListener
is closed or not. This info could be used to do some other logic in program.
如何判断tcplistener是否关闭?
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1条回答 默认 最新
- dpmp9359 2016-01-19 14:57关注
You could dial to the socket before using it:
_, err = net.Dial("tcp", "127.0.0.1:8021") //8021 is a closed socket if err != nil { panic("Error, socket not opened") }
EDIT: Maybe this way is more clear:
isOpen := true _, err = net.Dial("tcp", "127.0.0.1:8021") //8021 is a closed socket if err != nil { isOpen = false } if isOpen { //Your logic here }
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