Files
watcher/watcher/common/scheduling.py
Andreas Jaeger 1bb2aefec3 Update hacking for Python3
The repo is Python 3 now, so update hacking to version 3.0 which
supports Python 3.

Fix problems found.

Update local hacking checks for new flake8.

Remove hacking and friends from lower-constraints, they are not needed
to be installed at run-time.

Change-Id: Ia6af344ec8441dc98a0820176373dcff3a8c80d5
2020-04-02 07:50:02 +02:00

73 lines
2.1 KiB
Python

# -*- encoding: utf-8 -*-
# Copyright (c) 2016 b<>com
#
# Authors: Vincent FRANCOISE <vincent.francoise@b-com.com>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from apscheduler import events
from apscheduler.executors.pool import BasePoolExecutor
from apscheduler.schedulers import background
import futurist
from oslo_service import service
job_events = events
class GreenThreadPoolExecutor(BasePoolExecutor):
"""Green thread pool
An executor that runs jobs in a green thread pool.
Plugin alias: ``threadpool``
:param max_workers: the maximum number of spawned threads.
"""
def __init__(self, max_workers=10):
pool = futurist.GreenThreadPoolExecutor(int(max_workers))
super(GreenThreadPoolExecutor, self).__init__(pool)
executors = {
'default': GreenThreadPoolExecutor(),
}
class BackgroundSchedulerService(service.ServiceBase,
background.BackgroundScheduler):
def __init__(self, gconfig={}, **options):
if options is None:
options = {'executors': executors}
else:
if 'executors' not in options.keys():
options['executors'] = executors
super(BackgroundSchedulerService, self).__init__(
gconfig, **options)
def start(self):
"""Start service."""
background.BackgroundScheduler.start(self)
def stop(self):
"""Stop service."""
self.shutdown()
def wait(self):
"""Wait for service to complete."""
def reset(self):
"""Reset service.
Called in case service running in daemon mode receives SIGHUP.
"""