如何防止Winsock应用程序由于网络不活动而断开连接（C ++）

Question

Currently have a winsock application that connects to a server. It can send and receive packets, but after a few minutes(around 2, if you wanted me to guess) of not sending anything, it disconnects and I have restart it, which is pretty annoying. Thanks in advance.

Answer 1

You can try setting KEEPALIVE to true. You set this using the socket options. You have to set it on both the client socket and the server's listening socket.

Have a look at: http://linux.die.net/man/2/setsockopt And http://msdn.microsoft.com/en-us/library/windows/desktop/ms740476(v=vs.85).aspx