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Add weakref support to array.array and file objects.

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Raymond Hettinger 2004-05-31 00:35:52 +00:00
parent 691d80532b
commit cb87bc8e7e
5 changed files with 38 additions and 4 deletions
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9
Modules/arraymodule.c
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@ -4,6 +4,7 @@
The item type is restricted to simple C types like int or float */
#include "Python.h"
#include "structmember.h"
#ifdef STDC_HEADERS
#include <stddef.h>
@ -32,6 +33,7 @@ typedef struct arrayobject {
char *ob_item;
int allocated;
struct arraydescr *ob_descr;
PyObject *weakreflist; /* List of weak references */
} arrayobject;
static PyTypeObject Arraytype;
@ -442,6 +444,7 @@ newarrayobject(PyTypeObject *type, int size, struct arraydescr *descr)
}
op->ob_descr = descr;
op->allocated = size;
op->weakreflist = NULL;
return (PyObject *) op;
}
@ -490,6 +493,8 @@ ins1(arrayobject *self, int where, PyObject *v)
static void
array_dealloc(arrayobject *op)
{
if (op->weakreflist != NULL)
PyObject_ClearWeakRefs((PyObject *) op);
if (op->ob_item != NULL)
PyMem_DEL(op->ob_item);
op->ob_type->tp_free((PyObject *)op);
@ -1950,12 +1955,12 @@ static PyTypeObject Arraytype = {
PyObject_GenericGetAttr, /* tp_getattro */
0, /* tp_setattro */
&array_as_buffer, /* tp_as_buffer*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_WEAKREFS, /* tp_flags */
arraytype_doc, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
array_richcompare, /* tp_richcompare */
0, /* tp_weaklistoffset */
offsetof(arrayobject, weakreflist), /* tp_weaklistoffset */
(getiterfunc)array_iter, /* tp_iter */
0, /* tp_iternext */
array_methods, /* tp_methods */