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# Copyright (C) PyZMQ Developers
# Distributed under the terms of the Modified BSD License.
import zmq
from zmq.green import Poller
def device(device_type, isocket, osocket):
"""Start a zeromq device (gevent-compatible).
Unlike the true zmq.device, this does not release the GIL.
Parameters
----------
device_type : (QUEUE, FORWARDER, STREAMER)
The type of device to start (ignored).
isocket : Socket
The Socket instance for the incoming traffic.
osocket : Socket
The Socket instance for the outbound traffic.
"""
p = Poller()
if osocket == -1:
osocket = isocket
p.register(isocket, zmq.POLLIN)
p.register(osocket, zmq.POLLIN)
while True:
events = dict(p.poll())
if isocket in events:
osocket.send_multipart(isocket.recv_multipart())
if osocket in events:
isocket.send_multipart(osocket.recv_multipart())
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