zeroMQ初体验-6.多模式数据来源处理方案(multi sockets)
之前已经讲过,zeroMQ是可以多对多的,但需要成对匹配才行,即多个发布端都是同一种模式,而这里要涉及到的是,多个发布端模式不统一的情况。
文中先给出了一个比较"脏"的处理方式:
import zmqimport timecontext = zmq.Context()receiver = context.socket(zmq.PULL)receiver.connect("tcp://localhost:5557")subscriber = context.socket(zmq.SUB)subscriber.connect("tcp://localhost:5556")subscriber.setsockopt(zmq.SUBSCRIBE, "10001")while True: while True: try: rc = receiver.recv(zmq.NOBLOCK)#这是非阻塞模式 except zmq.ZMQError: break while True: try: rc = subscriber.recv(zmq.NOBLOCK) except zmq.ZMQError: break
import zmqcontext = zmq.Context()receiver = context.socket(zmq.PULL)receiver.connect("tcp://localhost:5557")subscriber = context.socket(zmq.SUB)subscriber.connect("tcp://localhost:5556")subscriber.setsockopt(zmq.SUBSCRIBE, "10001")poller = zmq.Poller()poller.register(receiver, zmq.POLLIN)poller.register(subscriber, zmq.POLLIN)while True: socks = dict(poller.poll()) if receiver in socks and socks[receiver] == zmq.POLLIN: message = receiver.recv() if subscriber in socks and socks[subscriber] == zmq.POLLIN: message = subscriber.recv()