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Fix potential deadlock if open_loop() is cancelled#128

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tjstum merged 2 commits into
python-trio:masterfrom
oremanj:fix-startup-deadlock
Dec 1, 2023
Merged

Fix potential deadlock if open_loop() is cancelled#128
tjstum merged 2 commits into
python-trio:masterfrom
oremanj:fix-startup-deadlock

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@oremanj

@oremanj oremanj commented Dec 1, 2023

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Resolves #115. This also modifies the "cancel and await all asyncio tasks" logic to run even if open_loop() is cancelled or sees an exception, because that's another potential source of deadlocks -- the Trio tasks in the tasks_nursery might need to block on asyncio work as they unwind.

@tjstum

tjstum commented Dec 1, 2023

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Nice fix.

LGTM

@tjstum tjstum merged commit 7712c98 into python-trio:master Dec 1, 2023
@oremanj oremanj deleted the fix-startup-deadlock branch February 1, 2024 19:38
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trio_asyncio shielding cancellation causes errors to be silenced.

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