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Issue #4885: Add weakref support to mmap objects. Patch by Valerie Lambert.

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This commit is contained in:
Antoine Pitrou 2013-08-05 23:17:30 +02:00
parent 914061ab15
commit c53204b947
4 changed files with 23 additions and 3 deletions
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8
Modules/mmapmodule.c
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@ -20,6 +20,7 @@
#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include "structmember.h"
#ifndef MS_WINDOWS
#define UNIX
@ -108,6 +109,7 @@ typedef struct {
int fd;
#endif
PyObject *weakreflist;
access_mode access;
} mmap_object;
@ -134,6 +136,8 @@ mmap_object_dealloc(mmap_object *m_obj)
}
#endif /* UNIX */
if (m_obj->weakreflist != NULL)
PyObject_ClearWeakRefs((PyObject *) m_obj);
Py_TYPE(m_obj)->tp_free((PyObject*)m_obj);
}
@ -1032,7 +1036,7 @@ static PyTypeObject mmap_object_type = {
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
offsetof(mmap_object, weakreflist), /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
mmap_object_methods, /* tp_methods */
@ -1190,6 +1194,7 @@ new_mmap_object(PyTypeObject *type, PyObject *args, PyObject *kwdict)
m_obj->data = NULL;
m_obj->size = (size_t) map_size;
m_obj->pos = (size_t) 0;
m_obj->weakreflist = NULL;
m_obj->exports = 0;
m_obj->offset = offset;
if (fd == -1) {
@ -1394,6 +1399,7 @@ new_mmap_object(PyTypeObject *type, PyObject *args, PyObject *kwdict)
/* set the initial position */
m_obj->pos = (size_t) 0;
m_obj->weakreflist = NULL;
m_obj->exports = 0;
/* set the tag name */
if (tagname != NULL && *tagname != '\0') {