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.
64 lines
1.9 KiB
64 lines
1.9 KiB
6 years ago
|
from __future__ import absolute_import
|
||
|
|
|
||
|
|
from datetime import timedelta
|
||
|
|
from functools import wraps
|
||
|
|
|
||
|
|
from apscheduler.schedulers.base import BaseScheduler
|
||
|
|
from apscheduler.util import maybe_ref
|
||
|
|
|
||
|
|
try:
|
||
|
|
from tornado.ioloop import IOLoop
|
||
|
|
except ImportError: # pragma: nocover
|
||
|
|
raise ImportError('TornadoScheduler requires tornado installed')
|
||
|
|
|
||
|
|
|
||
|
|
def run_in_ioloop(func):
|
||
|
|
@wraps(func)
|
||
|
|
def wrapper(self, *args, **kwargs):
|
||
|
|
self._ioloop.add_callback(func, self, *args, **kwargs)
|
||
|
|
return wrapper
|
||
|
|
|
||
|
|
|
||
|
|
class TornadoScheduler(BaseScheduler):
|
||
|
|
"""
|
||
|
|
A scheduler that runs on a Tornado IOLoop.
|
||
|
|
|
||
|
|
The default executor can run jobs based on native coroutines (``async def``).
|
||
|
|
|
||
|
|
=========== ===============================================================
|
||
|
|
``io_loop`` Tornado IOLoop instance to use (defaults to the global IO loop)
|
||
|
|
=========== ===============================================================
|
||
|
|
"""
|
||
|
|
|
||
|
|
_ioloop = None
|
||
|
|
_timeout = None
|
||
|
|
|
||
|
|
@run_in_ioloop
|
||
|
|
def shutdown(self, wait=True):
|
||
|
|
super(TornadoScheduler, self).shutdown(wait)
|
||
|
|
self._stop_timer()
|
||
|
|
|
||
|
|
def _configure(self, config):
|
||
|
|
self._ioloop = maybe_ref(config.pop('io_loop', None)) or IOLoop.current()
|
||
|
|
super(TornadoScheduler, self)._configure(config)
|
||
|
|
|
||
|
|
def _start_timer(self, wait_seconds):
|
||
|
|
self._stop_timer()
|
||
|
|
if wait_seconds is not None:
|
||
|
|
self._timeout = self._ioloop.add_timeout(timedelta(seconds=wait_seconds), self.wakeup)
|
||
|
|
|
||
|
|
def _stop_timer(self):
|
||
|
|
if self._timeout:
|
||
|
|
self._ioloop.remove_timeout(self._timeout)
|
||
|
|
del self._timeout
|
||
|
|
|
||
|
|
def _create_default_executor(self):
|
||
|
|
from apscheduler.executors.tornado import TornadoExecutor
|
||
|
|
return TornadoExecutor()
|
||
|
|
|
||
|
|
@run_in_ioloop
|
||
|
|
def wakeup(self):
|
||
|
|
self._stop_timer()
|
||
|
|
wait_seconds = self._process_jobs()
|
||
|
|
self._start_timer(wait_seconds)
|