tcp.py 文件源码

def _closeSocket(self, orderly):
        # The call to shutdown() before close() isn't really necessary, because
        # we set FD_CLOEXEC now, which will ensure this is the only process
        # holding the FD, thus ensuring close() really will shutdown the TCP
        # socket. However, do it anyways, just to be safe.
        skt = self.socket
        try:
            if orderly:
                if self._shouldShutdown:
                    skt.shutdown(2)
            else:
                # Set SO_LINGER to 1,0 which, by convention, causes a
                # connection reset to be sent when close is called,
                # instead of the standard FIN shutdown sequence.
                self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_LINGER,
                                       struct.pack("ii", 1, 0))

        except socket.error:
            pass
        try:
            skt.close()
        except socket.error:
            pass