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)
