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/* Weak references objects for Python. */
#ifndef Py_WEAKREFOBJECT_H
#define Py_WEAKREFOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _PyWeakReference PyWeakReference;
struct _PyWeakReference {
PyObject_HEAD
PyObject *wr_object;
PyObject *wr_callback;
long hash;
PyWeakReference *wr_prev;
PyWeakReference *wr_next;
};
extern DL_IMPORT(PyTypeObject) _PyWeakref_RefType;
extern DL_IMPORT(PyTypeObject) _PyWeakref_ProxyType;
extern DL_IMPORT(PyTypeObject) _PyWeakref_CallableProxyType;
#define PyWeakref_CheckRef(op) \
((op)->ob_type == &_PyWeakref_RefType)
#define PyWeakref_CheckProxy(op) \
(((op)->ob_type == &_PyWeakref_ProxyType) || \
((op)->ob_type == &_PyWeakref_CallableProxyType))
#define PyWeakref_Check(op) \
(PyWeakref_CheckRef(op) || PyWeakref_CheckProxy(op))
extern DL_IMPORT(PyObject *) PyWeakref_NewRef(PyObject *ob,
PyObject *callback);
extern DL_IMPORT(PyObject *) PyWeakref_NewProxy(PyObject *ob,
PyObject *callback);
extern DL_IMPORT(PyObject *) PyWeakref_GetObject(PyObject *ref);
extern DL_IMPORT(long) _PyWeakref_GetWeakrefCount(PyWeakReference *head);
#define PyWeakref_GET_OBJECT(ref) (((PyWeakReference *)(ref))->wr_object)
#ifdef __cplusplus
}
#endif
#endif /* !Py_WEAKREFOBJECT_H */
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