2024-05-21 12:29:33 -04:00
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# Copyright (c) 2018-2024, The Monero Project
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2022-07-09 18:08:06 -04:00
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#
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification, are
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# permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice, this list of
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# conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice, this list
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# of conditions and the following disclaimer in the documentation and/or other
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# materials provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its contributors may be
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# used to endorse or promote products derived from this software without specific
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# prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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# THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""Class to subscribe to and receive ZMQ events."""
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import zmq
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import json
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class Zmq(object):
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def __init__(self, protocol='tcp', host='127.0.0.1', port=0, idx=0):
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self.host = host
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self.port = port
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self.socket = zmq.Context().socket(zmq.SUB)
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self.socket.connect('{protocol}://{host}:{port}'.format(protocol=protocol, host=host, port=port if port else 18480+idx))
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def sub(self, topic):
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self.socket.setsockopt_string(zmq.SUBSCRIBE, topic)
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def recv(self, topic):
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msg = self.socket.recv()
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data = msg.decode().split(topic + ":")[1]
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return json.loads(data)
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