👍️[Update] Model : Watchdogタイマー機能を追加

"/run/feed_watchdog"でタイマーを定期的にリセットする必要あり

src-python/models/watchdog/watchdog.py

@@ -0,0 +1,30 @@
+import os
+import time
+from threading import Thread, Event
+from utils import printLog
+
+class Watchdog:
+    def __init__(self, timeout:int=60, interval:int=1):
+        self.timeout = timeout
+        self.interval = interval
+        self.last_feed_time = time.time()
+        self._stop_event = Event()
+        self._watchdog_thread = Thread(target=self._watchdog_loop)
+
+    def start(self):
+        self._watchdog_thread.start()
+
+    def stop(self):
+        self._stop_event.set()
+        self._watchdog_thread.join()
+
+    def feed(self):
+        self.last_feed_time = time.time()
+
+    def _watchdog_loop(self):
+        while not self._stop_event.is_set():
+            if time.time() - self.last_feed_time > self.timeout:
+                printLog("Watchdog timeout! Shutting down...")
+                os._exit(1)
+
+            time.sleep(self.interval)