49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
import logging
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import zmq
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from zmq.eventloop.zmqstream import ZMQStream
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from .serialization import serialize_tfw_msg, with_deserialize_tfw_msg
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LOG = logging.getLogger(__name__)
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class EventHandlerDownlinkConnector:
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def __init__(self, bind_addr):
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self._zmq_pull_socket = zmq.Context.instance().socket(zmq.PULL)
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self._zmq_pull_socket.setsockopt(zmq.RCVHWM, 0)
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self._zmq_pull_stream = ZMQStream(self._zmq_pull_socket)
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self._zmq_pull_socket.bind(bind_addr)
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LOG.debug('Pull socket bound to %s', bind_addr)
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def register_callback(self, callback):
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callback = with_deserialize_tfw_msg(callback)
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self._zmq_pull_stream.on_recv(callback)
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def close(self):
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self._zmq_pull_stream.close()
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class EventHandlerUplinkConnector:
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def __init__(self, bind_addr):
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self._zmq_pub_socket = zmq.Context.instance().socket(zmq.PUB)
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self._zmq_pub_socket.setsockopt(zmq.SNDHWM, 0)
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self._zmq_pub_socket.bind(bind_addr)
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LOG.debug('Pub socket bound to %s', bind_addr)
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def send_message(self, message: dict):
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self._zmq_pub_socket.send_multipart(serialize_tfw_msg(message))
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def close(self):
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self._zmq_pub_socket.close()
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class EventHandlerConnector(EventHandlerDownlinkConnector, EventHandlerUplinkConnector):
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def __init__(self, downlink_bind_addr, uplink_bind_addr):
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EventHandlerDownlinkConnector.__init__(self, downlink_bind_addr)
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EventHandlerUplinkConnector.__init__(self, uplink_bind_addr)
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def close(self):
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EventHandlerDownlinkConnector.close(self)
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EventHandlerUplinkConnector.close(self)
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