synergy-service/synergy/common/service.py

69 lines
1.6 KiB
Python

import os
import signal
import sys
try:
from oslo_config import cfg
except ImportError:
from oslo.config import cfg
from synergy.common import log as logging
__author__ = "Lisa Zangrando"
__email__ = "lisa.zangrando[AT]pd.infn.it"
__copyright__ = """Copyright (c) 2015 INFN - INDIGO-DataCloud
All Rights Reserved
Licensed under the Apache License, Version 2.0;
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."""
CONF = cfg.CONF
LOG = logging.getLogger(__name__)
SIGTERM_SENT = False
class Service(object):
def __init__(self, name):
self.name = name
signal.signal(signal.SIGTERM, self.sigterm_handler)
signal.signal(signal.SIGINT, self.sigterm_handler)
def sigterm_handler(self, signum, frame):
global SIGTERM_SENT
if not SIGTERM_SENT:
LOG.info("Shutting down %s" % self.name)
SIGTERM_SENT = True
self.stop()
os.killpg(0, signal.SIGTERM)
sys.exit()
def getName(self):
return self.name
def start(self):
pass
def stop(self):
pass
def wait(self):
pass
def restart(self):
# Reload config files and restart service
CONF.reload_config_files()
self.stop()
self.start()