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gh-112087: Test fix for test_sched leak #116237

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gh-112087: Test fix for test_sched leak #116237

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3 changes: 3 additions & 0 deletions Include/internal/pycore_gc.h
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Original file line number Diff line number Diff line change
Expand Up @@ -288,6 +288,9 @@ extern PyObject *_PyGC_GetReferrers(PyInterpreterState *interp, PyObject *objs);
extern void _PyGC_ClearAllFreeLists(PyInterpreterState *interp);
extern void _Py_ScheduleGC(PyThreadState *tstate);
extern void _Py_RunGC(PyThreadState *tstate);
#ifdef Py_GIL_DISABLED
extern void _PyGC_Clear_DelayedObjects(PyInterpreterState *interp);
#endif

#ifdef __cplusplus
}
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13 changes: 13 additions & 0 deletions Python/gc_free_threading.c
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Expand Up @@ -1154,6 +1154,7 @@ gc_collect_main(PyThreadState *tstate, int generation, _PyGC_Reason reason)
}
}

_PyGC_Clear_DelayedObjects(interp);
/* Update stats */
struct gc_generation_stats *stats = &gcstate->generation_stats[generation];
stats->collections++;
Expand Down Expand Up @@ -1758,4 +1759,16 @@ _PyGC_ClearAllFreeLists(PyInterpreterState *interp)
HEAD_UNLOCK(&_PyRuntime);
}

void
_PyGC_Clear_DelayedObjects(PyInterpreterState *interp)
{
HEAD_LOCK(&_PyRuntime);
PyThreadState *tstate = interp->threads.head;
while (tstate != NULL) {
_PyMem_ProcessDelayed(tstate);
tstate = (PyThreadState *)tstate->next;
}
HEAD_UNLOCK(&_PyRuntime);
}

#endif // Py_GIL_DISABLED