From adc04fb4ece0f3c54da872a99ffa9829699e3a90 Mon Sep 17 00:00:00 2001
From: hetmankp <728670+hetmankp@users.noreply.github.com>
Date: Tue, 4 Oct 2022 00:58:54 +1100
Subject: [PATCH] gh-94732: Fix KeyboardInterrupt race in asyncio run_forever()
This addresses issue #94732, ensuring that the event loop's _thread_id
attribute and the asyncgen hooks set by sys.set_asyncgen_hooks() are
always restored no matter where a KeyboardInterrupt exception is raised.
---
Lib/asyncio/base_events.py | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/Lib/asyncio/base_events.py b/Lib/asyncio/base_events.py
index 2df9dcac8f723f..66202f09794db8 100644
--- a/Lib/asyncio/base_events.py
+++ b/Lib/asyncio/base_events.py
@@ -606,12 +606,13 @@ def run_forever(self):
self._check_closed()
self._check_running()
self._set_coroutine_origin_tracking(self._debug)
- self._thread_id = threading.get_ident()
old_agen_hooks = sys.get_asyncgen_hooks()
- sys.set_asyncgen_hooks(firstiter=self._asyncgen_firstiter_hook,
- finalizer=self._asyncgen_finalizer_hook)
try:
+ self._thread_id = threading.get_ident()
+ sys.set_asyncgen_hooks(firstiter=self._asyncgen_firstiter_hook,
+ finalizer=self._asyncgen_finalizer_hook)
+
events._set_running_loop(self)
while True:
self._run_once()
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