def __init__(self, app):
self.app = app
self._stop_waiter = Waiter(
timeout=self.app.config.PROCESS_STOP_TIMEOUT * 2)
super(GafferControl, self).__init__()
class GafferControl(LoopMixin):
"""Start and stop gaffer."""
def __init__(self, app):
self.app = app
self._stop_waiter = Waiter(
timeout=self.app.config.PROCESS_STOP_TIMEOUT * 2)
super(GafferControl, self).__init__()
@in_loop
def start(self):
self.app.gaffer_manager.start()
def stop(self):
stop_waiter = self._stop_waiter
@loop_delegate
def async_stop():
self.app.gaffer_manager.stop(
callback=lambda *args: stop_waiter.done())
async_stop()
stop_waiter.wait_or_terminate('Timeout happened when stopping gaffer.')
def abort(self):
self._stop_waiter.abort()
def __init__(self, app, listeners, controller):
self.app = app
self.listeners = listeners
self.controller = controller
broker = self.broker = self.Broker(self.app)
self.factory = self.Factory(self.app, broker,
setup_callback=self.setup_cb, teardown_callback=self.teardown_cb)
self._bootstrapped = {}
self._start_waiter = Waiter(
timeout=self.app.config.PROCESS_START_TIMEOUT)
super(ProcessManager, self).__init__()
class ProcessManager(ManagerMixin, LoopMixin):
"""Start and manage workers."""
#: Which class should be used to bootstrap process.
Factory = ProcessFactory
#: Which class should be used to pass commands to processes.
Broker = Broker
#: How worker process should be named.
name_template = '[thriftworker-{0}] -c {1.CONCURRENCY} -k {1.WORKER_TYPE}'
def __init__(self, app, listeners, controller):
self.app = app
self.listeners = listeners
self.controller = controller
broker = self.broker = self.Broker(self.app)
self.factory = self.Factory(self.app, broker,
setup_callback=self.setup_cb, teardown_callback=self.teardown_cb)
self._bootstrapped = {}
self._start_waiter = Waiter(
timeout=self.app.config.PROCESS_START_TIMEOUT)
super(ProcessManager, self).__init__()
def __len__(self):
return len(self._bootstrapped)
def __iter__(self):
return iter(self._bootstrapped)
def __getitem__(self, process_id):
"""Return registered process."""
return self._bootstrapped.get(process_id)
def eliminate(self, process_id):
"""Unregister and stop process."""
process = self[process_id]
if process is None:
return
self.broker.unregister(process_id)
process.stop()
def is_ready(self):
"""Are all workers started or not?"""
return len(self) >= self.app.config.WORKERS
def setup_cb(self, proxy, process):
# Change name of process.
name = self.name_template.format(process.pid, self.app.config)
proxy.change_title(name)
# Register acceptors in remote process.
proxy.register_acceptors({i: listener.name
for i, listener in iteritems(self.listeners.enumerated)})
for listener in self.listeners:
if listener.started:
proxy.start_acceptor(listener.name)
# Set startup time for process.
process.startup_time = self.loop.now()
# Notify about process initialization.
self._bootstrapped[process.pid] = process
logger.info('Worker %d initialized.', process.pid)
if self.is_ready():
self.ready_cb()
def teardown_cb(self, pid):
try:
self._bootstrapped.pop(pid)
except KeyError:
pass
def ready_cb(self, *args):
logger.info('Workers initialization done.')
self._start_waiter.done()
def start(self):
@loop_delegate
def async_start():
self.factory.setup(self.listeners.channels)
async_start()
self._start_waiter.wait_or_terminate(
'Timeout happened when starting processes.')
@in_loop
def stop(self):
self.factory.teardown()
def abort(self):
self._start_waiter.abort()
