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44 lines
1.4 KiB
Python
44 lines
1.4 KiB
Python
2 years ago
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# Copyright 2016 Étienne Bersac
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# Copyright 2016 Julien Danjou
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# Copyright 2016 Joshua Harlow
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# Copyright 2013-2014 Ray Holder
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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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import typing
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if typing.TYPE_CHECKING:
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import threading
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def sleep(seconds: float) -> None:
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"""
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Sleep strategy that delays execution for a given number of seconds.
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This is the default strategy, and may be mocked out for unit testing.
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"""
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time.sleep(seconds)
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class sleep_using_event:
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"""Sleep strategy that waits on an event to be set."""
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def __init__(self, event: "threading.Event") -> None:
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self.event = event
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def __call__(self, timeout: typing.Optional[float]) -> None:
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# NOTE(harlowja): this may *not* actually wait for timeout
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# seconds if the event is set (ie this may eject out early).
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self.event.wait(timeout=timeout)
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