shell bypass 403
曾与蒿藜同雨露,한때 잡초와 쑥과 함께 비와 이슬을 나누던 곳이 이제는 소나무와 삼나무와 함께 서리와 눈을 견뎌내고 있다.终随松柏到冰霜.かつては雑草やヨモギと共に雨や露を分かち合っていたが、今では松やヒノキと共に霜や雪に耐えている。曾与蒿藜同雨露,Once sharing rain and dew with weeds and wormwood, now enduring frost and snow with pines and cypresses.终随松柏到冰霜.曾与蒿藜同雨露한때 잡초와 쑥과 함께 비와 이슬을 나누던 곳이 이제는 소나무와 삼나무와 함께 서리와 눈을 견뎌내고 있다.,终随松柏到冰霜.譖セ荳手珍阯懷酔髮ィ髴イ�檎サ磯囂譚セ譟丞芦蜀ー髴�曾与蒿藜同雨露,鏇句笌钂胯棞鍚岄洦闇诧紝缁堥殢鏉炬煆鍒板啺闇�终随松柏到冰霜.曾与蒿藜同雨露,한때 잡초와 쑥과 함께 비와 이슬을 나누던 곳이 이제는 소나무와 삼나무와 함께 서리와 눈을 견뎌내고 있다.终随松柏到冰霜.曾与蒿藜同雨露,终随松柏到冰霜.
#ifndef Py_INTERNAL_WEAKREF_H
#define Py_INTERNAL_WEAKREF_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef Py_BUILD_CORE
# error "this header requires Py_BUILD_CORE define"
#endif
#include "pycore_critical_section.h" // Py_BEGIN_CRITICAL_SECTION()
#include "pycore_lock.h"
#include "pycore_object.h" // _Py_REF_IS_MERGED()
#include "pycore_pyatomic_ft_wrappers.h"
#ifdef Py_GIL_DISABLED
#define WEAKREF_LIST_LOCK(obj) \
_PyInterpreterState_GET() \
->weakref_locks[((uintptr_t)obj) % NUM_WEAKREF_LIST_LOCKS]
// Lock using the referenced object
#define LOCK_WEAKREFS(obj) \
PyMutex_LockFlags(&WEAKREF_LIST_LOCK(obj), _Py_LOCK_DONT_DETACH)
#define UNLOCK_WEAKREFS(obj) PyMutex_Unlock(&WEAKREF_LIST_LOCK(obj))
// Lock using a weakref
#define LOCK_WEAKREFS_FOR_WR(wr) \
PyMutex_LockFlags(wr->weakrefs_lock, _Py_LOCK_DONT_DETACH)
#define UNLOCK_WEAKREFS_FOR_WR(wr) PyMutex_Unlock(wr->weakrefs_lock)
#else
#define LOCK_WEAKREFS(obj)
#define UNLOCK_WEAKREFS(obj)
#define LOCK_WEAKREFS_FOR_WR(wr)
#define UNLOCK_WEAKREFS_FOR_WR(wr)
#endif
static inline int _is_dead(PyObject *obj)
{
// Explanation for the Py_REFCNT() check: when a weakref's target is part
// of a long chain of deallocations which triggers the trashcan mechanism,
// clearing the weakrefs can be delayed long after the target's refcount
// has dropped to zero. In the meantime, code accessing the weakref will
// be able to "see" the target object even though it is supposed to be
// unreachable. See issue gh-60806.
#if defined(Py_GIL_DISABLED)
Py_ssize_t shared = _Py_atomic_load_ssize_relaxed(&obj->ob_ref_shared);
return shared == _Py_REF_SHARED(0, _Py_REF_MERGED);
#else
return (Py_REFCNT(obj) == 0);
#endif
}
static inline PyObject* _PyWeakref_GET_REF(PyObject *ref_obj)
{
assert(PyWeakref_Check(ref_obj));
PyWeakReference *ref = _Py_CAST(PyWeakReference*, ref_obj);
PyObject *obj = FT_ATOMIC_LOAD_PTR(ref->wr_object);
if (obj == Py_None) {
// clear_weakref() was called
return NULL;
}
LOCK_WEAKREFS(obj);
#ifdef Py_GIL_DISABLED
if (ref->wr_object == Py_None) {
// clear_weakref() was called
UNLOCK_WEAKREFS(obj);
return NULL;
}
#endif
if (_Py_TryIncref(obj)) {
UNLOCK_WEAKREFS(obj);
return obj;
}
UNLOCK_WEAKREFS(obj);
return NULL;
}
static inline int _PyWeakref_IS_DEAD(PyObject *ref_obj)
{
assert(PyWeakref_Check(ref_obj));
int ret = 0;
PyWeakReference *ref = _Py_CAST(PyWeakReference*, ref_obj);
PyObject *obj = FT_ATOMIC_LOAD_PTR(ref->wr_object);
if (obj == Py_None) {
// clear_weakref() was called
ret = 1;
}
else {
LOCK_WEAKREFS(obj);
// See _PyWeakref_GET_REF() for the rationale of this test
#ifdef Py_GIL_DISABLED
ret = (ref->wr_object == Py_None) || _is_dead(obj);
#else
ret = _is_dead(obj);
#endif
UNLOCK_WEAKREFS(obj);
}
return ret;
}
extern Py_ssize_t _PyWeakref_GetWeakrefCount(PyObject *obj);
// Clear all the weak references to obj but leave their callbacks uncalled and
// intact.
extern void _PyWeakref_ClearWeakRefsNoCallbacks(PyObject *obj);
PyAPI_FUNC(int) _PyWeakref_IsDead(PyObject *weakref);
#ifdef __cplusplus
}
#endif
#endif /* !Py_INTERNAL_WEAKREF_H */