OSC3.py 文件源码

def _receiveMsgWithTimeout(self):
        """ Receive OSC message from a socket and decode.
        If an error occurs, None is returned, else the message.
        """
        # get OSC packet size from stream which is prepended each transmission
        chunk = self._receiveWithTimeout(4)
        if not chunk:
            return None
        # extract message length from big endian unsigned long (32 bit) 
        slen = struct.unpack(">L", chunk)[0]
        # receive the actual message
        chunk = self._receiveWithTimeout(slen)
        if not chunk:
            return None
        # decode OSC content
        msg = decodeOSC(chunk)
        if msg == None:
            raise OSCError("CLIENT: Message decoding failed.")
        return msg