mirror of
https://github.com/openvswitch/ovs
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9e03d7344c
Instead of using os.fork (not supported on Windows), subprocess.Popen is used and os.pipe was replaced with Windows pipes. To be able to identify the child process, an extra parameter was added to daemon process '--pipe-handle'. This parameter contains the parent Windows pipe handle which is used by the child to notify the parent about the startup. The PID file is created directly on Windows, without using a temporary file because the symbolic link does not inherit the file lok set on the temporary file. Signed-off-by: Paul-Daniel Boca <pboca@cloudbasesolutions.com> Signed-off-by: Alin Balutoiu <abalutoiu@cloudbasesolutions.com> Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions> Tested-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions> Signed-off-by: Gurucharan Shetty <guru@ovn.org>
62 lines
1.7 KiB
Python
62 lines
1.7 KiB
Python
# Copyright (c) 2010, 2011 Nicira, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at:
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import argparse
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import signal
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import sys
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import time
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import ovs.daemon
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import ovs.util
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def handler(signum, _):
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raise Exception("Signal handler called with %d" % signum)
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def main():
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if sys.platform != 'win32':
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# signal.SIGHUP does not exist on Windows
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signal.signal(signal.SIGHUP, handler)
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parser = argparse.ArgumentParser(
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description="Open vSwitch daemonization test program for Python.")
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parser.add_argument("-b", "--bail", action="store_true",
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help="Exit with an error after daemonize_start().")
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ovs.daemon.add_args(parser)
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args = parser.parse_args()
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ovs.daemon.handle_args(args)
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ovs.daemon.daemonize_start()
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if args.bail:
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sys.stderr.write("%s: exiting after daemonize_start() as requested\n"
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% ovs.util.PROGRAM_NAME)
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sys.exit(1)
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ovs.daemon.daemonize_complete()
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while True:
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time.sleep(1)
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if __name__ == '__main__':
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try:
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main()
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except SystemExit:
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# Let system.exit() calls complete normally
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raise
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except:
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sys.exit(ovs.daemon.RESTART_EXIT_CODE)
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