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42 lines
1.5 KiB
42 lines
1.5 KiB
6 years ago
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from __future__ import absolute_import
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from threading import Thread, Event
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from apscheduler.schedulers.base import BaseScheduler
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from apscheduler.schedulers.blocking import BlockingScheduler
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from apscheduler.util import asbool
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class BackgroundScheduler(BlockingScheduler):
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"""
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A scheduler that runs in the background using a separate thread
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(:meth:`~apscheduler.schedulers.base.BaseScheduler.start` will return immediately).
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Extra options:
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========== =============================================================================
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``daemon`` Set the ``daemon`` option in the background thread (defaults to ``True``, see
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`the documentation
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<https://docs.python.org/3.4/library/threading.html#thread-objects>`_
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for further details)
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========== =============================================================================
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"""
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_thread = None
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def _configure(self, config):
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self._daemon = asbool(config.pop('daemon', True))
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super(BackgroundScheduler, self)._configure(config)
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def start(self, *args, **kwargs):
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self._event = Event()
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BaseScheduler.start(self, *args, **kwargs)
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self._thread = Thread(target=self._main_loop, name='APScheduler')
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self._thread.daemon = self._daemon
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self._thread.start()
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def shutdown(self, *args, **kwargs):
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super(BackgroundScheduler, self).shutdown(*args, **kwargs)
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self._thread.join()
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del self._thread
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