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https://github.com/blakeblackshear/frigate.git
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57864f2be6
Generally eliminate the `while True` loops while waiting for a stop event and prefer to condition the loops on if the stop event is set, blocking on that where it makes sense. This generally comes in 3 flavors. First and simplest, when there is a sleep and the stop event is the only thing the loop blocks on, instead do a check using `stop_event.wait(timeout)` to instead block on the stop event for the designated amount of time. Second, when there is a different event that is blocking in the loop, condition the loop on `stop_event.is_set()` rather than breaking when it is set. Finally, when there is a separate internal condition that requires a counter, have the loop iterate over the counter and use `if stop_event.wait(timeout)` internal to the loop.
36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
import datetime
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import logging
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import threading
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import time
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import os
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import signal
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logger = logging.getLogger(__name__)
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class FrigateWatchdog(threading.Thread):
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def __init__(self, detectors, stop_event):
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threading.Thread.__init__(self)
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self.name = "frigate_watchdog"
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self.detectors = detectors
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self.stop_event = stop_event
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def run(self):
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time.sleep(10)
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while not self.stop_event.wait(10):
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now = datetime.datetime.now().timestamp()
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# check the detection processes
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for detector in self.detectors.values():
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detection_start = detector.detection_start.value
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if detection_start > 0.0 and now - detection_start > 10:
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logger.info(
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"Detection appears to be stuck. Restarting detection process..."
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)
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detector.start_or_restart()
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elif not detector.detect_process.is_alive():
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logger.info("Detection appears to have stopped. Exiting frigate...")
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os.kill(os.getpid(), signal.SIGTERM)
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logger.info(f"Exiting watchdog...")
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