41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
# Copyright 2021 Alibaba Group Holding Limited.
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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 functools
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import signal
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def timeout(sec):
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"""
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timeout decorator
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:param sec: function raise TimeoutError after ? seconds
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"""
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def decorator(func):
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@functools.wraps(func)
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def wrapped_func(*args, **kwargs):
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def _handle_timeout(signum, frame):
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err_msg = f'Function {func.__name__} timed out after {sec} seconds'
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raise TimeoutError(err_msg)
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signal.signal(signal.SIGALRM, _handle_timeout)
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signal.alarm(sec)
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try:
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result = func(*args, **kwargs)
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finally:
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signal.alarm(0)
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return result
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return wrapped_func
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return decorator |