很久之前我發在javaeye論壇上，預防丟了抄過來：

原文：http://erlang.group.iteye.com/group/wiki/1422-gen_tcp-half-closed

當tcp對端呼叫shutdown(RD/WR) 時候， 宿主程序預設將收到{tcp_closed, Socket}訊息， 如果這個行為不是你想要的，那麼請看：

shutdown(Socket, How) -> ok | {error, Reason}
Types:
Socket = socket()
How = read | write | read_write
Reason = posix()

Immediately close a socket in one or two directions.
How == write means closing the socket for writing, reading from it is still possible.
To be able to handle that the peer has done a shutdown on the write side, the {exit_on_close, false} option is useful.

簡單的設定inets:setopts(Socket, [{exit_on_close, false}]). 這樣就不會被強制退出了。

祝玩得開心！

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