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November 25, 2021 05:26
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| """ | |
| Python thread pause, resume, exit detail and Example _python | |
| https://topic.alibabacloud.com/a/python-thread-pause-resume-exit-detail-and-example-_python_1_29_20095165.html | |
| How to start/stop a Python function within a time period (ex. from 10 am to 12:30pm)? | |
| https://stackoverflow.com/questions/41289947/how-to-start-stop-a-python-function-within-a-time-period-ex-from-10-am-to-123 | |
| """ | |
| import threading | |
| import time | |
| class Job(threading.Thread): | |
| def __init__(self, *args, **kwargs): | |
| super(Job, self).__init__(*args, **kwargs) | |
| self.__flag = threading.Event() # The flag used to pause the thread | |
| self.__flag.set() # Set to True | |
| self.__running = threading.Event() # Used to stop the thread identification | |
| self.__running.set() # Set running to True | |
| def run(self): | |
| while self.__running.isSet(): | |
| self.__flag.wait() # return immediately when it is True, block until the internal flag is True when it is False | |
| print(time.time()) | |
| time.sleep(1) # By time.sleep(1) you repeat the loop every 1 sec. | |
| def pause(self): | |
| self.__flag.clear() # Set to False to block the thread | |
| def resume(self): | |
| self.__flag.set() # Set to True, let the thread stop blocking | |
| def stop(self): | |
| self.__flag.set() # Resume the thread from the suspended state, if it is already suspended | |
| self.__running.clear() # Set to False | |
| a = Job() | |
| a.start() | |
| time.sleep(3) | |
| a.pause() | |
| time.sleep(3) | |
| a.resume() | |
| time.sleep(3) | |
| a.pause() | |
| time.sleep(5) | |
| a.stop() |
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