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SickRage/sickbeard/event_queue.py

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from threading import Thread
from Queue import Queue, Empty
from tornado.ioloop import IOLoop
class Event:
def __init__(self, type):
self._type = type
@property
def type(self):
return self._type
class Events(Thread):
def __init__(self, callback):
super(Events, self).__init__()
self.queue = Queue()
self.daemon = True
self.alive = True
self.callback = callback
self.name = "EVENT-QUEUE"
# auto-start
self.start()
def put(self, type):
self.queue.put_nowait(type)
def run(self):
while(self.alive):
try:
# get event type
type = self.queue.get(True, 1)
# perform callback if we got a event type
self.callback(type)
# event completed
self.queue.task_done()
except Empty:
type = None
# System Events
class SystemEvent(Event):
RESTART = "RESTART"
SHUTDOWN = "SHUTDOWN"