__init__.py 文件源码

def create_socket(port):
    """
    Create zmq sub socket.
    """
    context = zmq.Context()
    socket = context.socket(zmq.SUB)

    try:
        socket.bind("tcp://*:%s" % port)
    except zmq.error.ZMQError:
        print("Address already in use")
        sys.exit(1)

    socket.setsockopt(zmq.SUBSCRIBE, b"")
    print("Start node-masternode Subscribe")
    return socket, context