_PyGCHead_SET_FINALIZED(_Py_AS_GC(o))

#endif /* !defined(Py_LIMITED_API) */

#if defined(Py_BUILD_CORE) || defined(Py_BUILD_CORE_BUILTIN)

/* Tell the GC to track this object.

*

* NB: While the object is tracked by the collector, it must be safe to call the

* ob_traverse method.

*

* Internal note: _PyRuntime.gc.generation0->_gc_prev doesn't have any bit flags

* because it's not object header. So we don't use _PyGCHead_PREV() and

* _PyGCHead_SET_PREV() for it to avoid unnecessary bitwise operations.

*

* The PyObject_GC_Track() function is the public version of this macro.

*/

#define _PyObject_GC_TRACK(o) do { \

PyGC_Head *g = _Py_AS_GC(o); \

if (g->_gc_next != 0) { \

Py_FatalError("GC object already tracked"); \

} \

assert((g->_gc_prev & _PyGC_PREV_MASK_COLLECTING) == 0); \

PyGC_Head *last = (PyGC_Head*)(_PyRuntime.gc.generation0->_gc_prev); \

_PyGCHead_SET_NEXT(last, g); \

_PyGCHead_SET_PREV(g, last); \

_PyGCHead_SET_NEXT(g, _PyRuntime.gc.generation0); \

_PyRuntime.gc.generation0->_gc_prev = (uintptr_t)g; \

} while (0);

/* Tell the GC to stop tracking this object.

*

* Internal note: This may be called while GC. So _PyGC_PREV_MASK_COLLECTING must

* be cleared. But _PyGC_PREV_MASK_FINALIZED bit is kept.

*

* The PyObject_GC_UnTrack() function is the public version of this macro.

*/

#define _PyObject_GC_UNTRACK(o) do { \

PyGC_Head *g = _Py_AS_GC(o); \

PyGC_Head *prev = _PyGCHead_PREV(g); \

PyGC_Head *next = _PyGCHead_NEXT(g); \

assert(next != NULL); \

_PyGCHead_SET_NEXT(prev, next); \

_PyGCHead_SET_PREV(next, prev); \

g->_gc_next = 0; \

g->_gc_prev &= _PyGC_PREV_MASK_FINALIZED; \

} while (0);

#endif /* defined(Py_BUILD_CORE) || defined(Py_BUILD_CORE_BUILTIN) */

#ifndef Py_LIMITED_API

PyAPI_FUNC(PyObject *) _PyObject_GC_Malloc(size_t size);

PyAPI_FUNC(PyObject *) _PyObject_GC_Calloc(size_t size);