53 lines
1.3 KiB
Python
53 lines
1.3 KiB
Python
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import sys
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IS_WINDOWS: bool = sys.platform == "win32"
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if IS_WINDOWS:
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import win32api
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else:
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import signal
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class WhileStopper:
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is_registered: bool
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stop_requested: bool
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def __init__(self) -> None:
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self.is_registered = False
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self.stop_requested = False
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def is_stop_requested(self) -> bool:
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if not self.is_registered:
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raise RuntimeError('unexpected stopper status')
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return self.stop_requested
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def register(self):
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if self.is_registered:
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raise RuntimeError('unexpected stopper status')
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self.stop_requested = False
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if IS_WINDOWS:
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win32api.SetConsoleCtrlHandler(self.__win_handler, True)
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else:
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signal.signal(signal.SIGINT, self.__posix_handler)
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self.is_registered = True
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def unregister(self):
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if not self.is_registered:
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raise RuntimeError('unexpected stopper status')
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if IS_WINDOWS:
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win32api.SetConsoleCtrlHandler(None, False)
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else:
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signal.signal(signal.SIGINT, signal.SIG_DFL)
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self.is_registered = False
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def __win_handler(self, ctrl_type: int) -> bool:
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self.stop_requested = True
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return True
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def __posix_handler(self, signal, frame) -> None:
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self.stop_requested = True
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