TimeoutSocket.py 文件源码

def connect(self, *addr):
        timeout = self.timeout
        sock = self.sock
        try:
            # Non-blocking mode
            sock.setblocking(0)
            apply(sock.connect, addr)
            sock.setblocking(timeout != 0)
            return 1
        except socket.error,why:
            if not timeout:
                raise
            sock.setblocking(1)
            if len(why.args) == 1:
                code = 0
            else:
                code, why = why
            if code not in (
                errno.EINPROGRESS, errno.EALREADY, errno.EWOULDBLOCK
                ):
                raise
            r,w,e = select.select([],[sock],[],timeout)
            if w:
                try:
                    apply(sock.connect, addr)
                    return 1
                except socket.error,why:
                    if len(why.args) == 1:
                        code = 0
                    else:
                        code, why = why
                    if code in (errno.EISCONN, WSAEINVAL):
                        return 1
                    raise
        raise TimeoutError('socket connect() timeout.')