/usr/include/python2.7/weakrefobject.h is in python2.7-dev 2.7.3-6+deb7u2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | /* Weak references objects for Python. */
#ifndef Py_WEAKREFOBJECT_H
#define Py_WEAKREFOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _PyWeakReference PyWeakReference;
/* PyWeakReference is the base struct for the Python ReferenceType, ProxyType,
* and CallableProxyType.
*/
struct _PyWeakReference {
PyObject_HEAD
/* The object to which this is a weak reference, or Py_None if none.
* Note that this is a stealth reference: wr_object's refcount is
* not incremented to reflect this pointer.
*/
PyObject *wr_object;
/* A callable to invoke when wr_object dies, or NULL if none. */
PyObject *wr_callback;
/* A cache for wr_object's hash code. As usual for hashes, this is -1
* if the hash code isn't known yet.
*/
long hash;
/* If wr_object is weakly referenced, wr_object has a doubly-linked NULL-
* terminated list of weak references to it. These are the list pointers.
* If wr_object goes away, wr_object is set to Py_None, and these pointers
* have no meaning then.
*/
PyWeakReference *wr_prev;
PyWeakReference *wr_next;
};
PyAPI_DATA(PyTypeObject) _PyWeakref_RefType;
PyAPI_DATA(PyTypeObject) _PyWeakref_ProxyType;
PyAPI_DATA(PyTypeObject) _PyWeakref_CallableProxyType;
#define PyWeakref_CheckRef(op) PyObject_TypeCheck(op, &_PyWeakref_RefType)
#define PyWeakref_CheckRefExact(op) \
(Py_TYPE(op) == &_PyWeakref_RefType)
#define PyWeakref_CheckProxy(op) \
((Py_TYPE(op) == &_PyWeakref_ProxyType) || \
(Py_TYPE(op) == &_PyWeakref_CallableProxyType))
/* This macro calls PyWeakref_CheckRef() last since that can involve a
function call; this makes it more likely that the function call
will be avoided. */
#define PyWeakref_Check(op) \
(PyWeakref_CheckRef(op) || PyWeakref_CheckProxy(op))
PyAPI_FUNC(PyObject *) PyWeakref_NewRef(PyObject *ob,
PyObject *callback);
PyAPI_FUNC(PyObject *) PyWeakref_NewProxy(PyObject *ob,
PyObject *callback);
PyAPI_FUNC(PyObject *) PyWeakref_GetObject(PyObject *ref);
PyAPI_FUNC(Py_ssize_t) _PyWeakref_GetWeakrefCount(PyWeakReference *head);
PyAPI_FUNC(void) _PyWeakref_ClearRef(PyWeakReference *self);
#define PyWeakref_GET_OBJECT(ref) (((PyWeakReference *)(ref))->wr_object)
#ifdef __cplusplus
}
#endif
#endif /* !Py_WEAKREFOBJECT_H */
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