def test_get_active_description_waits_classwide(self):
"""Test the get_active_description method locks classwide."""
d = defer.Deferred()
ac1 = ActivationClient(self.config)
ac2 = ActivationClient(self.config)
self.patch(ac1, "_do_get_active_description", lambda: d)
self.patch(ac2, "_do_get_active_description",
lambda: defer.succeed(None))
ac1.get_active_client_description()
d2 = ac2.get_active_client_description()
self.assertFalse(d2.called, "The second must wait for the first.")
d.callback(self.client_description)
self.assertTrue(d2.called, "The second can fire after the first.")
def ipc_client_connect(client_factory, reactor=None):
"""Connect the IPC client factory."""
ac = ActivationClient(get_activation_config())
if reactor is None:
from twisted.internet import reactor
description = yield ac.get_active_client_description()
client = endpoints.clientFromString(reactor, description)
port = yield client.connect(client_factory)
defer.returnValue(port)
def client_connect(client_factory, service_name, activation_cmdline,
description, reactor=None):
"""Connect the IPC client factory."""
config = ActivationConfig(service_name, activation_cmdline, description)
ac = ActivationClient(config)
description = yield ac.get_active_client_description()
if reactor is None:
from twisted.internet import reactor
client = endpoints.clientFromString(reactor, description)
port = yield client.connect(client_factory)
defer.returnValue(port)
def client_test(config):
"""An IRL test of the client."""
from twisted.internet import reactor
print("starting the client.")
ac = ActivationClient(config)
d = ac.get_active_client_description()
def got_description(description):
"""The description was found."""
print("client got server description:", description)
reactor.stop()
d.addCallback(got_description)
reactor.run()
