？急！网络编程，在收发消息的时候返回 errno 为 115 这是什么问题？

[javatea_ppl]

查看errno.h文件
#define EINPROGRESS 115 /* Operation now in progress */

请问有可能是什么错引起的？

[YanDong_8212]

If you are using a non-blocking socket and then call connect, it should return -1 and errno=EINPROGRESS.

[yjf7888]

The socket is marked as nonblocking. The connection cannot be immediately completed. The application program can select the socket for writing during the connection process.

如果你的socket是非阻塞的话，不应该把这个结果看成一个错误。

[无知者无谓]

Use
char *strerror(int errnum);

It is defined in string.h, it print a readable string about the errno