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gh-120321: Make gi_yieldfrom thread-safe in free-threading build (#144292)

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Add a FRAME_SUSPENDED_YIELD_FROM_LOCKED state that acts as a brief
lock, preventing other threads from transitioning the frame state
while gen_getyieldfrom reads the yield-from object off the stack.
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Sam Gross 2026-01-30 12:20:27 -05:00 • committed by GitHub
parent a7048327ed
commit a01694dacd
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9 changed files with 103 additions and 19 deletions
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Python/lock.c
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@ -40,7 +40,7 @@ struct mutex_entry {
int handed_off;
};
static void
void
_Py_yield(void)
{
#ifdef MS_WINDOWS