weboob-devel/weboob/scheduler.py
2010-04-26 18:12:23 +02:00

63 lines
1.8 KiB
Python

# -*- coding: utf-8 -*-
"""
Copyright(C) 2010 Romain Bignon
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, version 3 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
"""
from threading import Timer, Event
__all__ = ['Scheduler']
class IScheduler(object):
def schedule(self, interval, function, *args):
raise NotImplementedError()
def repeat(self, interval, function, *args):
raise NotImplementedError()
def run(self):
raise NotImplementedError()
def want_stop(self):
raise NotImplementedError()
class Scheduler(IScheduler):
def __init__(self):
self.stop_event = Event()
self.count = 0
self.queue = {}
def schedule(self, interval, function, *args):
self.count += 1
timer = Timer(interval, function, args)
timer.start()
self.queue[self.count] = timer
return self.count
def repeat(self, interval, function, *args):
return self.schedule(interval, self._repeated_cb, interval, function, args)
def run(self):
self.stop_event.wait()
return True
def want_stop(self):
self.stop_event.set()
def _repeated_cb(self, interval, func, args):
func(*args)
self.repeat(interval, func, *args)