eventloop: use the default executor for run_in_thread()

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>

moonraker/eventloop.py

@@ -8,7 +8,6 @@ from __future__ import annotations
 import asyncio
 import inspect
 import functools
-from concurrent.futures import ThreadPoolExecutor
 from typing import (
     TYPE_CHECKING,
     Awaitable,
@@ -42,6 +41,7 @@ class EventLoop:
         self.create_task = self.aioloop.create_task
         self.call_at = self.aioloop.call_at
         self.set_debug = self.aioloop.set_debug
+        self.is_running = self.aioloop.is_running
 
     def register_callback(self,
                           callback: FlexCallback,
@@ -77,12 +77,11 @@ class EventLoop:
         # was never awaited" warnings in asyncio
         self.aioloop.create_task(callback())
 
-    async def run_in_thread(self,
-                            callback: Callable[..., _T],
-                            *args
-                            ) -> _T:
-        with ThreadPoolExecutor(max_workers=1) as tpe:
-            return await self.aioloop.run_in_executor(tpe, callback, *args)
+    def run_in_thread(self,
+                      callback: Callable[..., _T],
+                      *args
+                      ) -> Awaitable[_T]:
+        return self.aioloop.run_in_executor(None, callback, *args)
 
     def start(self):
         self.aioloop.run_forever()