fix: 修复默认 event loop 冲突问题

apps/common/decorators.py

@@ -44,21 +44,25 @@ def key_by_org(*args, **kwargs):
     return args[0].org_id
 
 
-class LoopThread(threading.Thread):
-    def __init__(self, loop, *args, **kwargs):
+class EventLoopThread(threading.Thread):
+    def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
-        self.loop = loop
+        self._loop = asyncio.new_event_loop()
 
     def run(self) -> None:
-        asyncio.set_event_loop(loop)
-        self.loop.run_forever()
-        print('loop stopped')
+        asyncio.set_event_loop(self._loop)
+        try:
+            self._loop.run_forever()
+        except Exception as e:
+            logger.error("Event loop stopped with err: {} ".format(e))
+
+    def get_loop(self):
+        return self._loop
 
 
-loop = asyncio.get_event_loop()
-loop_thread = LoopThread(loop)
-loop_thread.daemon = True
-loop_thread.start()
+_loop_thread = EventLoopThread()
+_loop_thread.setDaemon(True)
+_loop_thread.start()
 executor = ThreadPoolExecutor(max_workers=10,
                               thread_name_prefix='debouncer')
 _loop_debouncer_func_task_cache = {}
@@ -87,14 +91,15 @@ class Debouncer(object):
 
     async def __call__(self, *args, **kwargs):
         await asyncio.sleep(self.delay)
-        ok = await self._check()
+        ok = await self._run_sync_to_async(self.check)
         if ok:
-            await self.loop.run_in_executor(self.executor, self.callback, *args)
+            callback_func = functools.partial(self.callback, *args, **kwargs)
+            return await self._run_sync_to_async(callback_func)
 
-    async def _check(self):
-        if asyncio.iscoroutinefunction(self.check):
-            return await self.check()
-        return await self.loop.run_in_executor(self.executor, self.check)
+    async def _run_sync_to_async(self, func):
+        if asyncio.iscoroutinefunction(func):
+            return await func()
+        return await self.loop.run_in_executor(self.executor, func)
 
 
 def _run_func_with_org(key, org, func, *args, **kwargs):
@@ -142,6 +147,7 @@ def delay_run(ttl=5, key=None, merge_args=False):
             cancel_or_remove_debouncer_task(cache_key)
 
             run_func_partial = functools.partial(_run_func_with_org, cache_key, org, func)
+            loop = _loop_thread.get_loop()
             _debouncer = Debouncer(run_func_partial, lambda: True, ttl,
                                    loop=loop, executor=executor)
             task = asyncio.run_coroutine_threadsafe(_debouncer(*new_arg),