42 lines
955 B
Python
42 lines
955 B
Python
'''
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Implements a file system watcher.
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See also:
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- https://inotify-simple.readthedocs.io/en/latest/#gracefully-exit-a-blocking-read
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'''
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import threading
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from execlog.event import Event
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class Listener[E: Event](threading.Thread):
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def __init__(self, router: 'Router[E]'):
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'''
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Parameters:
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router: associated Router instance that events should be passed to
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'''
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super().__init__()
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self.router = router
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def listen(self):
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'''
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Register a new listener endpoint
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'''
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raise NotImplementedError
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def run(self):
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'''
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Begin listening for events. Typically a blocking loop that passes events to
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attached Router.
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'''
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raise NotImplementedError
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def stop(self):
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'''
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Begin listening for events. Typically a blocking loop that passes events to
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attached Router.
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'''
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raise NotImplementedError
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