windows - unix/windows 上的 keepalive 超时

Question

当连接因 keepalive 事件而中断时，aix/linux 上返回的错误是什么？是不是可以区别于其他套接字错误的唯一错误码？

在 Windows 上，这可以是 WSAECONNRESET or WSAENETRESET .

有没有办法在返回 WSAECONNRESET 时区分由于 keepalive 事件导致的错误？

WSAECONNRESET 10054 Connection reset by peer. An existing connection was forcibly closed by the remote host. This normally results if the peer application on the remote host is suddenly stopped, the host is rebooted, the host or remote network interface is disabled, or the remote host uses a hard close (see setsockopt for more information on the SO_LINGER option on the remote socket). This error may also result if a connection was broken due to keep-alive activity detecting a failure while one or more operations are in progress. Operations that were in progress fail with WSAENETRESET. Subsequent operations fail with WSAECONNRESET.

Answer 1

Is there a way to differentiate the error due to keepalive activity when WSAECONNRESET is returned ?

没有。在所有情况下，基本条件都是“连接重置”。