You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
1.8 KiB
63 lines
1.8 KiB
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()
|