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- # Copyright 2016 Étienne Bersac
- # Copyright 2016 Julien Danjou
- # Copyright 2016 Joshua Harlow
- # Copyright 2013-2014 Ray Holder
- #
- # Licensed under the Apache License, Version 2.0 (the "License");
- # you may not use this file except in compliance with the License.
- # You may obtain a copy of the License at
- #
- # http://www.apache.org/licenses/LICENSE-2.0
- #
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
- import time
- import typing
- if typing.TYPE_CHECKING:
- import threading
- def sleep(seconds: float) -> None:
- """
- Sleep strategy that delays execution for a given number of seconds.
- This is the default strategy, and may be mocked out for unit testing.
- """
- time.sleep(seconds)
- class sleep_using_event:
- """Sleep strategy that waits on an event to be set."""
- def __init__(self, event: "threading.Event") -> None:
- self.event = event
- def __call__(self, timeout: typing.Optional[float]) -> None:
- # NOTE(harlowja): this may *not* actually wait for timeout
- # seconds if the event is set (ie this may eject out early).
- self.event.wait(timeout=timeout)
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