btcomm.py 文件源码

def start(self):
        """
        Starts the Bluetooth server if its not already running. The server needs to be started before
        connections can be made.
        """
        if not self._running:

            if self._power_up_device:
                self.adapter.powered = True

            if not self.adapter.powered:
                raise Exception("Bluetooth device {} is turned off".format(self.adapter.device))

            #register the serial port profile with Bluetooth
            register_spp(self._port)

            #start Bluetooth server
            #open the Bluetooth socket
            self._server_sock = socket.socket(socket.AF_BLUETOOTH, socket.SOCK_STREAM, socket.BTPROTO_RFCOMM)
            self._server_sock.settimeout(BLUETOOTH_TIMEOUT)
            try:
                self._server_sock.bind((self.server_address, self.port))
            except (socket.error, OSError) as e:
                if e.errno == errno.EADDRINUSE:
                    print("Bluetooth address {} is already in use - is the server already running?".format(self.server_address))
                raise e
            self._server_sock.listen(1)

            #wait for client connection
            self._conn_thread = WrapThread(target=self._wait_for_connection)
            self._conn_thread.start()

            self._running = True