view Include/cellobject.h @ 87690:66c1c9f32567 default tip

Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 62b61abd02b8
children
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/* Cell object interface */
#ifndef Py_LIMITED_API
#ifndef Py_CELLOBJECT_H
#define Py_CELLOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
	PyObject_HEAD
	PyObject *ob_ref;	/* Content of the cell or NULL when empty */
} PyCellObject;

PyAPI_DATA(PyTypeObject) PyCell_Type;

#define PyCell_Check(op) (Py_TYPE(op) == &PyCell_Type)

PyAPI_FUNC(PyObject *) PyCell_New(PyObject *);
PyAPI_FUNC(PyObject *) PyCell_Get(PyObject *);
PyAPI_FUNC(int) PyCell_Set(PyObject *, PyObject *);

#define PyCell_GET(op) (((PyCellObject *)(op))->ob_ref)
#define PyCell_SET(op, v) (((PyCellObject *)(op))->ob_ref = v)

#ifdef __cplusplus
}
#endif
#endif /* !Py_TUPLEOBJECT_H */
#endif /* Py_LIMITED_API */