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GH-96827: Don't touch closed loops from executor threads #96837

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Merged
gvanrossum merged 4 commits into from
Sep 30, 2022
Merged

GH-96827: Don't touch closed loops from executor threads #96837

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9698862
When chaining futures, skip callback if loop closed
gvanrossum Sep 15, 2022
471792d
When shutting down an executor, don't wake a closed loop
gvanrossum Sep 15, 2022
d290359
Merge branch 'main' into asyncio-thread-late
gvanrossum Sep 15, 2022
a396ba6
📜🤖 Added by blurb_it.
blurb-it[bot] Sep 30, 2022
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When chaining futures, skip callback if loop closed
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@gvanrossum
gvanrossum committed Sep 15, 2022
commit 9698862ba465ea03107e7f74ff7806038d64ebfc
2 changes: 2 additions & 0 deletions Lib/asyncio/futures.py
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Original file line number Diff line number Diff line change
Expand Up @@ -404,6 +404,8 @@ def _call_set_state(source):
if dest_loop is None or dest_loop is source_loop:
_set_state(destination, source)
else:
if dest_loop.is_closed():
return
dest_loop.call_soon_threadsafe(_set_state, destination, source)

destination.add_done_callback(_call_check_cancel)
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