mylar/lib/apscheduler/schedulers/blocking.py

34 lines
924 B
Python

from __future__ import absolute_import
from threading import Event
from apscheduler.schedulers.base import BaseScheduler, STATE_STOPPED
from apscheduler.util import TIMEOUT_MAX
class BlockingScheduler(BaseScheduler):
"""
A scheduler that runs in the foreground
(:meth:`~apscheduler.schedulers.base.BaseScheduler.start` will block).
"""
_event = None
def start(self, *args, **kwargs):
self._event = Event()
super(BlockingScheduler, self).start(*args, **kwargs)
self._main_loop()
def shutdown(self, wait=True):
super(BlockingScheduler, self).shutdown(wait)
self._event.set()
def _main_loop(self):
wait_seconds = TIMEOUT_MAX
while self.state != STATE_STOPPED:
self._event.wait(wait_seconds)
self._event.clear()
wait_seconds = self._process_jobs()
def wakeup(self):
self._event.set()