| # 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) | |