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GH-108362: Incremental GC implementation (GH-108038)

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Mark Shannon 2024-02-05 18:28:51 +00:00 • committed by GitHub
parent b4ba0f73d6
commit 36518e69d7
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13 changed files with 701 additions and 446 deletions
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17
Include/internal/pycore_object.h
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@ -125,19 +125,7 @@ static inline void _Py_RefcntAdd(PyObject* op, Py_ssize_t n)
}
#define _Py_RefcntAdd(op, n) _Py_RefcntAdd(_PyObject_CAST(op), n)
static inline void _Py_SetImmortal(PyObject *op)
{
if (op) {
#ifdef Py_GIL_DISABLED
op->ob_tid = _Py_UNOWNED_TID;
op->ob_ref_local = _Py_IMMORTAL_REFCNT_LOCAL;
op->ob_ref_shared = 0;
#else
op->ob_refcnt = _Py_IMMORTAL_REFCNT;
#endif
}
}
#define _Py_SetImmortal(op) _Py_SetImmortal(_PyObject_CAST(op))
extern void _Py_SetImmortal(PyObject *op);
// Makes an immortal object mortal again with the specified refcnt. Should only
// be used during runtime finalization.
@ -325,11 +313,12 @@ static inline void _PyObject_GC_TRACK(
filename, lineno, __func__);
PyInterpreterState *interp = _PyInterpreterState_GET();
PyGC_Head *generation0 = interp->gc.generation0;
PyGC_Head *generation0 = &interp->gc.young.head;
PyGC_Head *last = (PyGC_Head*)(generation0->_gc_prev);
_PyGCHead_SET_NEXT(last, gc);
_PyGCHead_SET_PREV(gc, last);
_PyGCHead_SET_NEXT(gc, generation0);
assert((gc->_gc_next & _PyGC_NEXT_MASK_OLD_SPACE_1) == 0);
generation0->_gc_prev = (uintptr_t)gc;
#endif
}