如何处理客户端断开连接（epoll） [英] How do I handle client disconnect (epoll)

问题描述

我正在使用epoll进行网络编程。我想知道我如何可以处理客户端断开连接。我读取api文档和epoll_wait有一个超时的参数。但是，如果epoll_wait函数或正在连接的客户端超时，我很困惑。

I am working on a network programming using epoll. I was wondering how I can handle client disconnect. I read api document and epoll_wait had a argument for timeout. However, I was confused if the time out for the epoll_wait function or for the client that are being connected.

提前感谢。

推荐答案

timeout指定的是epoll_wait 。要处理客户端断开连接，处理由epoll引发的EPOLLHUP，并检查套接字上的recv函数是否返回零，表示套接字断开连接。

timeout specified is for epoll_wait. To handle client disconnect, Handle EPOLLHUP raised by epoll and also check if the recv function on socket returns zero that means socket is disconnected.

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