49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright 2019 - The Android Open Source Project
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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 time
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from abc import ABC, abstractmethod
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import logging
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class Closable(ABC):
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def __enter__(self):
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return self
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def __exit__(self, type, value, traceback):
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try:
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self.close()
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except Exception:
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logging.warning("Failed to close or already closed")
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return traceback is None
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def __del__(self):
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try:
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self.close()
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except Exception:
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logging.warning("Failed to close or already closed")
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@abstractmethod
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def close(self):
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pass
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def safeClose(closable):
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if closable is not None:
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closable.close()
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# sleep for 100ms because GrpcEventQueue takes at most 100 ms to close
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time.sleep(0.1)
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