45 lines
1.3 KiB
Python
45 lines
1.3 KiB
Python
# Copyright 2014 DreamHost, LLC
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#
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# Author: DreamHost, LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Utilities for managing ourselves as a daemon.
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"""
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import signal
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from oslo_log import log as logging
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from astara.common.i18n import _LI
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def ignore_signals():
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"""Ignore signals that might interrupt processing
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Since the RUG doesn't want to be asynchronously interrupted,
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various signals received needs to be ignored. The registered
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signals including SIGHUP, SIGALRM, and default signals
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SIGUSR1 and SIGUSR2 are captured and ignored through the SIG_IGN
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action.
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:param: None
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:returns: None
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"""
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for s in [signal.SIGHUP, signal.SIGUSR1, signal.SIGUSR2, signal.SIGALRM]:
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logging.getLogger(__name__).info(_LI('ignoring signal %s'), s)
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signal.signal(s, signal.SIG_IGN)
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