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[net] nonblocking connect()

2010-12-01 10:48:01| 分类： net | 标签： |举报 |字号大中小订阅

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厄，nonblocking connect 到一个不存在的 ip:port，linux 下 select() writable 不会立即返回，而 FreeBSD 下会立即返回 writable。

事实证明，还是需要如下检查的：

static bool IsConnectingOK(int fd)

{

int error = 0;

unsigned int sz = sizeof(error);

int code = getsockopt(fd, SOL_SOCKET, SO_ERROR, (void *)&error, &sz);

return !((code < 0) || error);

}

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