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# Copyright (C) PyZMQ Developers
# Distributed under the terms of the Modified BSD License.
import time
import zmq
from zmq import devices
from zmq_test_utils import PYPY, BaseZMQTestCase, GreenTest, SkipTest, have_gevent
if PYPY:
# cleanup of shared Context doesn't work on PyPy
devices.Device.context_factory = zmq.Context
class TestDevice(BaseZMQTestCase):
def test_device_types(self):
for devtype in (zmq.STREAMER, zmq.FORWARDER, zmq.QUEUE):
dev = devices.Device(devtype, zmq.PAIR, zmq.PAIR)
assert dev.device_type == devtype
del dev
def test_device_attributes(self):
dev = devices.Device(zmq.QUEUE, zmq.SUB, zmq.PUB)
assert dev.in_type == zmq.SUB
assert dev.out_type == zmq.PUB
assert dev.device_type == zmq.QUEUE
assert dev.daemon is True
del dev
def test_single_socket_forwarder_connect(self):
if zmq.zmq_version() in ('4.1.1', '4.0.6'):
raise SkipTest(f"libzmq-{zmq.zmq_version()} broke single-socket devices")
dev = devices.ThreadDevice(zmq.QUEUE, zmq.REP, -1)
req = self.context.socket(zmq.REQ)
port = req.bind_to_random_port('tcp://127.0.0.1')
dev.connect_in(f'tcp://127.0.0.1:{port}')
dev.start()
time.sleep(0.25)
msg = b'hello'
req.send(msg)
assert msg == self.recv(req)
del dev
req.close()
dev = devices.ThreadDevice(zmq.QUEUE, zmq.REP, -1)
req = self.context.socket(zmq.REQ)
port = req.bind_to_random_port('tcp://127.0.0.1')
dev.connect_out(f'tcp://127.0.0.1:{port}')
dev.start()
time.sleep(0.25)
msg = b'hello again'
req.send(msg)
assert msg == self.recv(req)
del dev
req.close()
def test_single_socket_forwarder_bind(self):
if zmq.zmq_version() in ('4.1.1', '4.0.6'):
raise SkipTest(f"libzmq-{zmq.zmq_version()} broke single-socket devices")
dev = devices.ThreadDevice(zmq.QUEUE, zmq.REP, -1)
port = dev.bind_in_to_random_port('tcp://127.0.0.1')
req = self.context.socket(zmq.REQ)
req.connect(f'tcp://127.0.0.1:{port}')
dev.start()
time.sleep(0.25)
msg = b'hello'
req.send(msg)
assert msg == self.recv(req)
del dev
req.close()
dev = devices.ThreadDevice(zmq.QUEUE, zmq.REP, -1)
port = dev.bind_in_to_random_port('tcp://127.0.0.1')
req = self.context.socket(zmq.REQ)
req.connect(f'tcp://127.0.0.1:{port}')
dev.start()
time.sleep(0.25)
msg = b'hello again'
req.send(msg)
assert msg == self.recv(req)
del dev
req.close()
def test_device_bind_to_random_with_args(self):
dev = devices.ThreadDevice(zmq.PULL, zmq.PUSH, -1)
iface = 'tcp://127.0.0.1'
ports = []
min, max = 5000, 5050
ports.extend(
[
dev.bind_in_to_random_port(iface, min_port=min, max_port=max),
dev.bind_out_to_random_port(iface, min_port=min, max_port=max),
]
)
for port in ports:
if port < min or port > max:
self.fail(f'Unexpected port number: {port}')
def test_device_bind_to_random_binderror(self):
dev = devices.ThreadDevice(zmq.PULL, zmq.PUSH, -1)
iface = 'tcp://127.0.0.1'
try:
for i in range(11):
dev.bind_in_to_random_port(iface, min_port=10000, max_port=10010)
except zmq.ZMQBindError as e:
return
else:
self.fail('Should have failed')
def test_proxy(self):
if zmq.zmq_version_info() < (3, 2):
raise SkipTest("Proxies only in libzmq >= 3")
dev = devices.ThreadProxy(zmq.PULL, zmq.PUSH, zmq.PUSH)
iface = 'tcp://127.0.0.1'
port = dev.bind_in_to_random_port(iface)
port2 = dev.bind_out_to_random_port(iface)
port3 = dev.bind_mon_to_random_port(iface)
dev.start()
time.sleep(0.25)
msg = b'hello'
push = self.context.socket(zmq.PUSH)
push.connect(f"{iface}:{port}")
pull = self.context.socket(zmq.PULL)
pull.connect(f"{iface}:{port2}")
mon = self.context.socket(zmq.PULL)
mon.connect(f"{iface}:{port3}")
push.send(msg)
self.sockets.extend([push, pull, mon])
assert msg == self.recv(pull)
assert msg == self.recv(mon)
def test_proxy_bind_to_random_with_args(self):
if zmq.zmq_version_info() < (3, 2):
raise SkipTest("Proxies only in libzmq >= 3")
dev = devices.ThreadProxy(zmq.PULL, zmq.PUSH, zmq.PUSH)
iface = 'tcp://127.0.0.1'
ports = []
min, max = 5000, 5050
ports.extend(
[
dev.bind_in_to_random_port(iface, min_port=min, max_port=max),
dev.bind_out_to_random_port(iface, min_port=min, max_port=max),
dev.bind_mon_to_random_port(iface, min_port=min, max_port=max),
]
)
for port in ports:
if port < min or port > max:
self.fail(f'Unexpected port number: {port}')
if have_gevent:
import gevent
import zmq.green
class TestDeviceGreen(GreenTest, BaseZMQTestCase):
def test_green_device(self):
rep = self.context.socket(zmq.REP)
req = self.context.socket(zmq.REQ)
self.sockets.extend([req, rep])
port = rep.bind_to_random_port('tcp://127.0.0.1')
g = gevent.spawn(zmq.green.device, zmq.QUEUE, rep, rep)
req.connect(f'tcp://127.0.0.1:{port}')
req.send(b'hi')
timeout = gevent.Timeout(3)
timeout.start()
receiver = gevent.spawn(req.recv)
assert receiver.get(2) == b'hi'
timeout.cancel()
g.kill(block=True)
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