client.py 文件源码

def poll(self, timeout = 0):
        t0 = time.time()
        self.socket.flush()
        events = self.poller.poll(1000.0 * timeout)
        if events != []:
            event = events.pop()
            fd, flag = event
            if flag & (select.POLLERR | select.POLLNVAL):
                raise ConnectionLost
            if flag & select.POLLIN:
                if self.socket and not self.socket.recv():
                    raise ConnectionLost
                return True
        return False