/usr/lib/python3/dist-packages/apscheduler/schedulers/twisted.py is in python3-apscheduler 3.4.0-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | from __future__ import absolute_import
from functools import wraps
from apscheduler.schedulers.base import BaseScheduler
from apscheduler.util import maybe_ref
try:
from twisted.internet import reactor as default_reactor
except ImportError: # pragma: nocover
raise ImportError('TwistedScheduler requires Twisted installed')
def run_in_reactor(func):
@wraps(func)
def wrapper(self, *args, **kwargs):
self._reactor.callFromThread(func, self, *args, **kwargs)
return wrapper
class TwistedScheduler(BaseScheduler):
"""
A scheduler that runs on a Twisted reactor.
Extra options:
=========== ========================================================
``reactor`` Reactor instance to use (defaults to the global reactor)
=========== ========================================================
"""
_reactor = None
_delayedcall = None
def _configure(self, config):
self._reactor = maybe_ref(config.pop('reactor', default_reactor))
super(TwistedScheduler, self)._configure(config)
@run_in_reactor
def shutdown(self, wait=True):
super(TwistedScheduler, self).shutdown(wait)
self._stop_timer()
def _start_timer(self, wait_seconds):
self._stop_timer()
if wait_seconds is not None:
self._delayedcall = self._reactor.callLater(wait_seconds, self.wakeup)
def _stop_timer(self):
if self._delayedcall and self._delayedcall.active():
self._delayedcall.cancel()
del self._delayedcall
@run_in_reactor
def wakeup(self):
self._stop_timer()
wait_seconds = self._process_jobs()
self._start_timer(wait_seconds)
def _create_default_executor(self):
from apscheduler.executors.twisted import TwistedExecutor
return TwistedExecutor()
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