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gh-116522: Refactor _PyThreadState_DeleteExcept (#117131)

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Split `_PyThreadState_DeleteExcept` into two functions:

- `_PyThreadState_RemoveExcept` removes all thread states other than one
  passed as an argument. It returns the removed thread states as a
  linked list.

- `_PyThreadState_DeleteList` deletes those dead thread states. It may
  call destructors, so we want to "start the world" before calling
  `_PyThreadState_DeleteList` to avoid potential deadlocks.
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Sam Gross 2024-03-21 14:21:02 -04:00 • committed by GitHub
parent 50369e6c34
commit 1f72fb5447
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5 changed files with 41 additions and 23 deletions
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Include/internal/pycore_pystate.h
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@ -218,7 +218,8 @@ extern PyThreadState * _PyThreadState_New(
PyInterpreterState *interp,
int whence);
extern void _PyThreadState_Bind(PyThreadState *tstate);
extern void _PyThreadState_DeleteExcept(PyThreadState *tstate);
extern PyThreadState * _PyThreadState_RemoveExcept(PyThreadState *tstate);
extern void _PyThreadState_DeleteList(PyThreadState *list);
extern void _PyThreadState_ClearMimallocHeaps(PyThreadState *tstate);
// Export for '_testinternalcapi' shared extension