stream.py 文件源码

python
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项目:qudi 作者: Ulm-IQO 项目源码 文件源码
def checkForMessage(self, socket):
        """ Check on socket activity if there is a complete ZMQ message.

          @param socket: ZMQ socket
        """
        logging.debug( "Check: {0!s}".format(self.readnotifier.socket()))
        self.readnotifier.setEnabled(False)
        check = True
        try:
            while check:
                events = self.socket.get(zmq.EVENTS)
                check = events & zmq.POLLIN
                logging.debug( "EVENTS: {0!s}".format(events))
                if check:
                    try:
                        msg = self.socket.recv_multipart(zmq.NOBLOCK)
                    except zmq.ZMQError as e:
                        if e.errno == zmq.EAGAIN:
                            # state changed since poll event
                            pass
                        else:
                            logging.info( "RECV Error: {0!s}".format(zmq.strerror(e.errno)))
                    else:
                        logging.debug( "MSG: {0!s} {1!s}".format(self.readnotifier.socket(), msg))
                        self.sigMsgRecvd.emit(msg)
        except:
            pass
        else:
            self.readnotifier.setEnabled(True)
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