mirror of https://github.com/zeromq/pyzmq.git
59 lines
1.4 KiB
Python
59 lines
1.4 KiB
Python
"""A thorough test of polling PUB/SUB sockets."""
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# -----------------------------------------------------------------------------
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# Copyright (c) 2010 Brian Granger
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#
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# Distributed under the terms of the New BSD License. The full license is in
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# the file LICENSE.BSD, distributed as part of this software.
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# -----------------------------------------------------------------------------
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import time
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import zmq
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print("Running polling tets for PUB/SUB sockets...")
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addr = 'tcp://127.0.0.1:5555'
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ctx = zmq.Context()
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s1 = ctx.socket(zmq.PUB)
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s2 = ctx.socket(zmq.SUB)
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s2.setsockopt(zmq.SUBSCRIBE, '')
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s1.bind(addr)
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s2.connect(addr)
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# Sleep to allow sockets to connect.
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time.sleep(1.0)
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poller = zmq.Poller()
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poller.register(s1, zmq.POLLIN | zmq.POLLOUT)
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poller.register(s2, zmq.POLLIN | zmq.POLLOUT)
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# Now make sure that both are send ready.
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socks = dict(poller.poll())
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assert socks[s1] == zmq.POLLOUT
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assert s2 not in socks
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# Make sure that s1 stays in POLLOUT after a send.
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s1.send('msg1')
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socks = dict(poller.poll())
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assert socks[s1] == zmq.POLLOUT
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# Make sure that s2 is POLLIN after waiting.
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time.sleep(0.5)
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socks = dict(poller.poll())
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assert socks[s2] == zmq.POLLIN
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# Make sure that s2 goes into 0 after recv.
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s2.recv()
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socks = dict(poller.poll())
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assert s2 not in socks
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poller.unregister(s1)
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poller.unregister(s2)
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# Wait for everything to finish.
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time.sleep(1.0)
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print("Finished.")
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