Mercurial > cpython-lru_cache-weakref

comparison Modules/arraymodule.c @ 32159:2c169ca5fa69 legacy-trunk

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Add weakref support to array.array and file objects.
author Raymond Hettinger <python@rcn.com>
date Mon, 31 May 2004 00:35:52 +0000
parents 35f56e08727f
children 0b181bf230c9
comparison
equal deleted inserted replaced
32158:679e5c8effae 32159:2c169ca5fa69
2 2
3 /* An array is a uniform list -- all items have the same type. 3 /* An array is a uniform list -- all items have the same type.
4 The item type is restricted to simple C types like int or float */ 4 The item type is restricted to simple C types like int or float */
5 5
6 #include "Python.h" 6 #include "Python.h"
7 #include "structmember.h"
7 8
8 #ifdef STDC_HEADERS 9 #ifdef STDC_HEADERS
9 #include <stddef.h> 10 #include <stddef.h>
10 #else /* !STDC_HEADERS */ 11 #else /* !STDC_HEADERS */
11 #ifndef DONT_HAVE_SYS_TYPES_H 12 #ifndef DONT_HAVE_SYS_TYPES_H
30 PyObject_HEAD 31 PyObject_HEAD
31 int ob_size; 32 int ob_size;
32 char *ob_item; 33 char *ob_item;
33 int allocated; 34 int allocated;
34 struct arraydescr *ob_descr; 35 struct arraydescr *ob_descr;
36 PyObject *weakreflist; /* List of weak references */
35 } arrayobject; 37 } arrayobject;
36 38
37 static PyTypeObject Arraytype; 39 static PyTypeObject Arraytype;
38 40
39 #define array_Check(op) PyObject_TypeCheck(op, &Arraytype) 41 #define array_Check(op) PyObject_TypeCheck(op, &Arraytype)
440 return PyErr_NoMemory(); 442 return PyErr_NoMemory();
441 } 443 }
442 } 444 }
443 op->ob_descr = descr; 445 op->ob_descr = descr;
444 op->allocated = size; 446 op->allocated = size;
447 op->weakreflist = NULL;
445 return (PyObject *) op; 448 return (PyObject *) op;
446 } 449 }
447 450
448 static PyObject * 451 static PyObject *
449 getarrayitem(PyObject *op, int i) 452 getarrayitem(PyObject *op, int i)
488 /* Methods */ 491 /* Methods */
489 492
490 static void 493 static void
491 array_dealloc(arrayobject *op) 494 array_dealloc(arrayobject *op)
492 { 495 {
496 if (op->weakreflist != NULL)
497 PyObject_ClearWeakRefs((PyObject *) op);
493 if (op->ob_item != NULL) 498 if (op->ob_item != NULL)
494 PyMem_DEL(op->ob_item); 499 PyMem_DEL(op->ob_item);
495 op->ob_type->tp_free((PyObject *)op); 500 op->ob_type->tp_free((PyObject *)op);
496 } 501 }
497 502
1948 0, /* tp_call */ 1953 0, /* tp_call */
1949 0, /* tp_str */ 1954 0, /* tp_str */
1950 PyObject_GenericGetAttr, /* tp_getattro */ 1955 PyObject_GenericGetAttr, /* tp_getattro */
1951 0, /* tp_setattro */ 1956 0, /* tp_setattro */
1952 &array_as_buffer, /* tp_as_buffer*/ 1957 &array_as_buffer, /* tp_as_buffer*/
1953 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */ 1958 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_WEAKREFS, /* tp_flags */
1954 arraytype_doc, /* tp_doc */ 1959 arraytype_doc, /* tp_doc */
1955 0, /* tp_traverse */ 1960 0, /* tp_traverse */
1956 0, /* tp_clear */ 1961 0, /* tp_clear */
1957 array_richcompare, /* tp_richcompare */ 1962 array_richcompare, /* tp_richcompare */
1958 0, /* tp_weaklistoffset */ 1963 offsetof(arrayobject, weakreflist), /* tp_weaklistoffset */
1959 (getiterfunc)array_iter, /* tp_iter */ 1964 (getiterfunc)array_iter, /* tp_iter */
1960 0, /* tp_iternext */ 1965 0, /* tp_iternext */
1961 array_methods, /* tp_methods */ 1966 array_methods, /* tp_methods */
1962 0, /* tp_members */ 1967 0, /* tp_members */
1963 array_getsets, /* tp_getset */ 1968 array_getsets, /* tp_getset */