44 lines
1.4 KiB
Python
44 lines
1.4 KiB
Python
# Copyright 2014
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# The Cloudscaling Group, 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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# 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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class OnCrashCleaner(object):
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def __init__(self):
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self._cleanups = []
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self._first_cleanups = []
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def __enter__(self):
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return self
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def __exit__(self, exc_type, exc_value, traceback):
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if exc_type is None:
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return
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self._run_cleanups(self._first_cleanups)
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self._run_cleanups(self._cleanups)
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def addCleanup(self, function, *args, **kwargs):
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self._cleanups.append((function, args, kwargs))
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def addFirstCleanup(self, function, *args, **kwargs):
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self._first_cleanups.append((function, args, kwargs))
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def _run_cleanups(self, cleanups):
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for function, args, kwargs in reversed(cleanups):
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try:
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function(*args, **kwargs)
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except Exception:
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# TODO(ft): log the error
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pass
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