def receive(self, msg):
        '''
        Overwriting :meth:`Actor.receive`, adds the checks and
        functionalities requiered by parallel methods.

        :param msg: The message is a dictionary using the constants
            defined in util.py (:mod:`pyactor.util`).
        '''
        if msg[TYPE] == TELL and msg[METHOD] == 'stop':
            self.running = False
        else:
            result = None
            try:
                invoke = getattr(self._obj, msg[METHOD])
                params = msg[PARAMS]

                if msg[METHOD] in self.ask_parallel:
                    rpc_id = str(uuid.uuid4())
                    # add rpc message to pendent AskResponse s
                    self.pending[rpc_id] = msg
                    # insert an rpc id to args
                    para = list(params[0])
                    para.insert(0, rpc_id)
                    invoke(*para, **params[1])
                    return
                else:
                    with self.__lock:
                        sleep(0.01)
                        result = invoke(*params[0], **params[1])
            except Exception, e:
                result = e
                print result

            self.send_response(result, msg)