Sort out Event disambiguity

There was a name collision of multiprocessing Event type and frigate events

frigate/app.py

@@ -1,7 +1,7 @@
 import logging
 import multiprocessing as mp
 from multiprocessing.queues import Queue
-from multiprocessing.synchronize import Event
+from multiprocessing.synchronize import Event as MpEvent
 import os
 import signal
 import sys
@@ -38,10 +38,10 @@ logger = logging.getLogger(__name__)
 
 class FrigateApp:
     def __init__(self) -> None:
-        self.stop_event: Event = mp.Event()
+        self.stop_event: MpEvent = mp.Event()
         self.detection_queue: Queue = mp.Queue()
         self.detectors: dict[str, ObjectDetectProcess] = {}
-        self.detection_out_events: dict[str, Event] = {}
+        self.detection_out_events: dict[str, MpEvent] = {}
         self.detection_shms: list[mp.shared_memory.SharedMemory] = []
         self.log_queue: Queue = mp.Queue()
         self.plus_api = PlusApi()

frigate/events.py

@@ -14,6 +14,7 @@ from frigate.models import Event
 from frigate.types import CameraMetricsTypes
 
 from multiprocessing.queues import Queue
+from multiprocessing.synchronize import Event as MpEvent
 from typing import Dict
 
 logger = logging.getLogger(__name__)
@@ -47,7 +48,7 @@ class EventProcessor(threading.Thread):
         camera_processes: dict[str, CameraMetricsTypes],
         event_queue: Queue,
         event_processed_queue: Queue,
-        stop_event: Event,
+        stop_event: MpEvent,
     ):
         threading.Thread.__init__(self)
         self.name = "event_processor"
@@ -158,7 +159,7 @@ class EventProcessor(threading.Thread):
 
 
 class EventCleanup(threading.Thread):
-    def __init__(self, config: FrigateConfig, stop_event: Event):
+    def __init__(self, config: FrigateConfig, stop_event: MpEvent):
         threading.Thread.__init__(self)
         self.name = "event_cleanup"
         self.config = config

frigate/stats.py

@@ -8,7 +8,7 @@ import os
 import requests
 from typing import Optional, Any
 from paho.mqtt.client import Client
-from multiprocessing.synchronize import Event
+from multiprocessing.synchronize import Event as MpEvent
 
 from frigate.config import FrigateConfig
 from frigate.const import RECORD_DIR, CLIPS_DIR, CACHE_DIR
@@ -148,7 +148,7 @@ class StatsEmitter(threading.Thread):
         stats_tracking: StatsTrackingTypes,
         mqtt_client: Client,
         topic_prefix: str,
-        stop_event: Event,
+        stop_event: MpEvent,
     ):
         threading.Thread.__init__(self)
         self.name = "frigate_stats_emitter"

frigate/watchdog.py

@@ -7,13 +7,13 @@ import signal
 
 from frigate.object_detection import ObjectDetectProcess
 from frigate.util import restart_frigate
-from multiprocessing.synchronize import Event
+from multiprocessing.synchronize import Event as MpEvent
 
 logger = logging.getLogger(__name__)
 
 
 class FrigateWatchdog(threading.Thread):
-    def __init__(self, detectors: dict[str, ObjectDetectProcess], stop_event: Event):
+    def __init__(self, detectors: dict[str, ObjectDetectProcess], stop_event: MpEvent):
         threading.Thread.__init__(self)
         self.name = "frigate_watchdog"
         self.detectors = detectors