blakeblackshear.frigate/frigate/watchdog.py

42 lines
1.5 KiB
Python

import datetime
import logging
import threading
import time
from multiprocessing.synchronize import Event as MpEvent
from frigate.object_detection import ObjectDetectProcess
from frigate.util.services import restart_frigate
logger = logging.getLogger(__name__)
class FrigateWatchdog(threading.Thread):
def __init__(self, detectors: dict[str, ObjectDetectProcess], stop_event: MpEvent):
super().__init__(name="frigate_watchdog")
self.detectors = detectors
self.stop_event = stop_event
def run(self) -> None:
time.sleep(10)
while not self.stop_event.wait(10):
now = datetime.datetime.now().timestamp()
# check the detection processes
for detector in self.detectors.values():
detection_start = detector.detection_start.value # type: ignore[attr-defined]
# issue https://github.com/python/typeshed/issues/8799
# from mypy 0.981 onwards
if detection_start > 0.0 and now - detection_start > 10:
logger.info(
"Detection appears to be stuck. Restarting detection process..."
)
detector.start_or_restart()
elif (
detector.detect_process is not None
and not detector.detect_process.is_alive()
):
logger.info("Detection appears to have stopped. Exiting Frigate...")
restart_frigate()
logger.info("Exiting watchdog...")