class gSup(gThread):
def __init__(self, thread, signal, interval=5, timeout=600):
self.thread = thread
self.interval = interval
self.timeout = timeout
self.signal = signal
super(gSup, self).__init__()
def start_wait_child(self):
self._ready_event = Event()
self.signal.connect(self._on_thread_ready, sender=self.thread)
self.thread.start()
self._ready_event.wait()
assert self._ready_event.ready()
return self.thread
def _on_thread_ready(self, **kwargs):
self._ready_event.send(1)
self.signal.disconnect(self._on_thread_ready)
def run(self):
self.debug("starting")
interval = self.interval
thread = self.start_wait_child()
self.info("started")
timeout = self.timeout
critical = self.critical
while not self.should_stop:
try:
pong = thread.ping(timeout)
except (self.Timeout, Exception), exc:
critical(SUP_ERROR_PING_TIMEOUT % (exc, ))
_exit(0)
if not pong:
critical(SUP_ERROR_NOT_STARTED)
_exit(0)
sleep(interval)
def _do_ping(self, timeout=None):
with self.Timeout(timeout):
event = Event()
self._ping_queue.put_nowait(event)
event.wait()
return event.ready()