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# Copyright (c) 2010, 2011 Nicira, Inc.
#
# 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.
import argparse
import signal
import sys
import time
import ovs.daemon
import ovs.util
def handler(signum, _):
raise Exception("Signal handler called with %d" % signum)
def main():
if sys.platform != 'win32':
# signal.SIGHUP does not exist on Windows
signal.signal(signal.SIGHUP, handler)
parser = argparse.ArgumentParser(
description="Open vSwitch daemonization test program for Python.")
parser.add_argument("-b", "--bail", action="store_true",
help="Exit with an error after daemonize_start().")
ovs.daemon.add_args(parser)
args = parser.parse_args()
ovs.daemon.handle_args(args)
ovs.daemon.daemonize_start()
if args.bail:
sys.stderr.write("%s: exiting after daemonize_start() as requested\n"
% ovs.util.PROGRAM_NAME)
sys.exit(1)
ovs.daemon.daemonize_complete()
while True:
time.sleep(1)
if __name__ == '__main__':
try:
main()
except SystemExit:
# Let system.exit() calls complete normally
raise
except:
sys.exit(ovs.daemon.RESTART_EXIT_CODE)
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