cpython-lru_cache-weakref: Objects/weakrefobject.c annotate

annotate Objects/weakrefobject.c @ 24042:63fbbed10714 legacy-trunk

Simplify HTTPSConnection constructor. See discussion in SF bug 458463.

author	Jeremy Hylton <jeremy@alum.mit.edu>
date	Fri, 28 Jun 2002 23:38:14 +0000
parents	ac24c2c9bcaf
children	1d3d980a3186

rev	line source
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	1 #include "Python.h"
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	2 #include "structmember.h"
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	3
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	4
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	5 #define GET_WEAKREFS_LISTPTR(o) \
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	6 ((PyWeakReference **) PyObject_GET_WEAKREFS_LISTPTR(o))
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	7
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	8
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	9 long
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	10 _PyWeakref_GetWeakrefCount(PyWeakReference *head)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	11 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	12 long count = 0;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	13
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	14 while (head != NULL) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	15 ++count;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	16 head = head->wr_next;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	17 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	18 return count;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	19 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	20
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	21
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	22 static PyWeakReference *
22607 ac24c2c9bcaf Remove weakref free list. This has the side effect of fixing a memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21483 diff changeset	23 new_weakref(PyObject ob, PyObject callback)
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	24 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	25 PyWeakReference *result;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	26
22607 ac24c2c9bcaf Remove weakref free list. This has the side effect of fixing a memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21483 diff changeset	27 result = PyObject_GC_New(PyWeakReference, &_PyWeakref_RefType);
ac24c2c9bcaf Remove weakref free list. This has the side effect of fixing a memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21483 diff changeset	28 if (result) {
ac24c2c9bcaf Remove weakref free list. This has the side effect of fixing a memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21483 diff changeset	29 result->hash = -1;
ac24c2c9bcaf Remove weakref free list. This has the side effect of fixing a memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21483 diff changeset	30 result->wr_object = ob;
ac24c2c9bcaf Remove weakref free list. This has the side effect of fixing a memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21483 diff changeset	31 Py_XINCREF(callback);
ac24c2c9bcaf Remove weakref free list. This has the side effect of fixing a memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21483 diff changeset	32 result->wr_callback = callback;
ac24c2c9bcaf Remove weakref free list. This has the side effect of fixing a memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21483 diff changeset	33 PyObject_GC_Track(result);
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	34 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	35 return result;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	36 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	37
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	38
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	39 /* This function clears the passed-in reference and removes it from the
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	40 * list of weak references for the referent. This is the only code that
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	41 * removes an item from the doubly-linked list of weak references for an
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	42 * object; it is also responsible for clearing the callback slot.
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	43 */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	44 static void
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	45 clear_weakref(PyWeakReference *self)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	46 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	47 PyObject *callback = self->wr_callback;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	48
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	49 if (PyWeakref_GET_OBJECT(self) != Py_None) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	50 PyWeakReference **list = GET_WEAKREFS_LISTPTR(
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	51 PyWeakref_GET_OBJECT(self));
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	52
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	53 if (*list == self)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	54 *list = self->wr_next;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	55 self->wr_object = Py_None;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	56 self->wr_callback = NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	57 if (self->wr_prev != NULL)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	58 self->wr_prev->wr_next = self->wr_next;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	59 if (self->wr_next != NULL)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	60 self->wr_next->wr_prev = self->wr_prev;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	61 self->wr_prev = NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	62 self->wr_next = NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	63 Py_XDECREF(callback);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	64 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	65 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	66
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	67
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	68 static void
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	69 weakref_dealloc(PyWeakReference *self)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	70 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	71 PyObject_GC_UnTrack((PyObject *)self);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	72 clear_weakref(self);
22607 ac24c2c9bcaf Remove weakref free list. This has the side effect of fixing a memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21483 diff changeset	73 PyObject_GC_Del(self);
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	74 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	75
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	76
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	77 static int
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	78 gc_traverse(PyWeakReference self, visitproc visit, void arg)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	79 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	80 if (self->wr_callback != NULL)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	81 return visit(self->wr_callback, arg);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	82 return 0;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	83 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	84
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	85
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	86 static int
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	87 gc_clear(PyWeakReference *self)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	88 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	89 clear_weakref(self);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	90 return 0;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	91 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	92
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	93
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	94 static PyObject *
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	95 weakref_call(PyWeakReference self, PyObject args, PyObject *kw)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	96 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	97 static char *argnames[] = {NULL};
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	98
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	99 if (PyArg_ParseTupleAndKeywords(args, kw, ":__call__", argnames)) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	100 PyObject *object = PyWeakref_GET_OBJECT(self);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	101 Py_INCREF(object);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	102 return (object);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	103 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	104 return NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	105 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	106
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	107
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	108 static long
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	109 weakref_hash(PyWeakReference *self)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	110 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	111 if (self->hash != -1)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	112 return self->hash;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	113 if (PyWeakref_GET_OBJECT(self) == Py_None) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	114 PyErr_SetString(PyExc_TypeError, "weak object has gone away");
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	115 return -1;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	116 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	117 self->hash = PyObject_Hash(PyWeakref_GET_OBJECT(self));
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	118 return self->hash;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	119 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	120
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	121
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	122 static PyObject *
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	123 weakref_repr(PyWeakReference *self)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	124 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	125 char buffer[256];
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	126 if (PyWeakref_GET_OBJECT(self) == Py_None) {
21083 d3b6401ca273 weakref_repr(), proxy_repr(): Conversion of sprintf() to Barry Warsaw <barry@python.org> parents: 21066 diff changeset	127 PyOS_snprintf(buffer, sizeof(buffer), "<weakref at %lx; dead>",
d3b6401ca273 weakref_repr(), proxy_repr(): Conversion of sprintf() to Barry Warsaw <barry@python.org> parents: 21066 diff changeset	128 (long)(self));
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	129 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	130 else {
21083 d3b6401ca273 weakref_repr(), proxy_repr(): Conversion of sprintf() to Barry Warsaw <barry@python.org> parents: 21066 diff changeset	131 PyOS_snprintf(buffer, sizeof(buffer),
d3b6401ca273 weakref_repr(), proxy_repr(): Conversion of sprintf() to Barry Warsaw <barry@python.org> parents: 21066 diff changeset	132 "<weakref at %#lx; to '%.50s' at %#lx>",
d3b6401ca273 weakref_repr(), proxy_repr(): Conversion of sprintf() to Barry Warsaw <barry@python.org> parents: 21066 diff changeset	133 (long)(self),
d3b6401ca273 weakref_repr(), proxy_repr(): Conversion of sprintf() to Barry Warsaw <barry@python.org> parents: 21066 diff changeset	134 PyWeakref_GET_OBJECT(self)->ob_type->tp_name,
d3b6401ca273 weakref_repr(), proxy_repr(): Conversion of sprintf() to Barry Warsaw <barry@python.org> parents: 21066 diff changeset	135 (long)(PyWeakref_GET_OBJECT(self)));
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	136 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	137 return PyString_FromString(buffer);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	138 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	139
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	140 /* Weak references only support equality, not ordering. Two weak references
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	141 are equal if the underlying objects are equal. If the underlying object has
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	142 gone away, they are equal if they are identical. */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	143
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	144 static PyObject *
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	145 weakref_richcompare(PyWeakReference* self, PyWeakReference* other, int op)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	146 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	147 if (op != Py_EQ \|\| self->ob_type != other->ob_type) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	148 Py_INCREF(Py_NotImplemented);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	149 return Py_NotImplemented;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	150 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	151 if (PyWeakref_GET_OBJECT(self) == Py_None
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	152 \|\| PyWeakref_GET_OBJECT(other) == Py_None) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	153 PyObject *res = self==other ? Py_True : Py_False;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	154 Py_INCREF(res);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	155 return res;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	156 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	157 return PyObject_RichCompare(PyWeakref_GET_OBJECT(self),
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	158 PyWeakref_GET_OBJECT(other), op);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	159 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	160
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	161
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	162 PyTypeObject
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	163 _PyWeakref_RefType = {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	164 PyObject_HEAD_INIT(&PyType_Type)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	165 0,
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	166 "weakref",
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	167 sizeof(PyWeakReference),
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	168 0,
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	169 (destructor)weakref_dealloc,/tp_dealloc/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	170 0, /tp_print/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	171 0, /tp_getattr/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	172 0, /tp_setattr/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	173 0, /tp_compare/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	174 (reprfunc)weakref_repr, /tp_repr/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	175 0, /tp_as_number/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	176 0, /tp_as_sequence/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	177 0, /tp_as_mapping/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	178 (hashfunc)weakref_hash, /tp_hash/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	179 (ternaryfunc)weakref_call, /tp_call/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	180 0, /tp_str/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	181 0, /tp_getattro/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	182 0, /tp_setattro/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	183 0, /tp_as_buffer/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	184 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC \| Py_TPFLAGS_HAVE_RICHCOMPARE,
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	185 0, /tp_doc/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	186 (traverseproc)gc_traverse, /tp_traverse/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	187 (inquiry)gc_clear, /tp_clear/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	188 (richcmpfunc)weakref_richcompare, /tp_richcompare/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	189 0, /tp_weaklistoffset/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	190 };
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	191
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	192
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	193 static int
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	194 proxy_checkref(PyWeakReference *proxy)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	195 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	196 if (PyWeakref_GET_OBJECT(proxy) == Py_None) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	197 PyErr_SetString(PyExc_ReferenceError,
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	198 "weakly-referenced object no longer exists");
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	199 return 0;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	200 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	201 return 1;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	202 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	203
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	204
20521 cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	205 /* If a parameter is a proxy, check that it is still "live" and wrap it,
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	206 * replacing the original value with the raw object. Raises ReferenceError
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	207 * if the param is a dead proxy.
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	208 */
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	209 #define UNWRAP(o) \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	210 if (PyWeakref_CheckProxy(o)) { \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	211 if (!proxy_checkref((PyWeakReference *)o)) \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	212 return NULL; \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	213 o = PyWeakref_GET_OBJECT(o); \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	214 }
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	215
21483 873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	216 #define UNWRAP_I(o) \
873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	217 if (PyWeakref_CheckProxy(o)) { \
873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	218 if (!proxy_checkref((PyWeakReference *)o)) \
873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	219 return -1; \
873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	220 o = PyWeakref_GET_OBJECT(o); \
873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	221 }
873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	222
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	223 #define WRAP_UNARY(method, generic) \
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	224 static PyObject * \
20521 cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	225 method(PyObject *proxy) { \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	226 UNWRAP(proxy); \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	227 return generic(proxy); \
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	228 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	229
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	230 #define WRAP_BINARY(method, generic) \
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	231 static PyObject * \
20521 cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	232 method(PyObject x, PyObject y) { \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	233 UNWRAP(x); \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	234 UNWRAP(y); \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	235 return generic(x, y); \
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	236 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	237
20532 bc138bc73cdd Remove an unnecessary check for NULL. Fred Drake <fdrake@acm.org> parents: 20521 diff changeset	238 /* Note that the third arg needs to be checked for NULL since the tp_call
bc138bc73cdd Remove an unnecessary check for NULL. Fred Drake <fdrake@acm.org> parents: 20521 diff changeset	239 * slot can receive NULL for this arg.
20521 cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	240 */
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	241 #define WRAP_TERNARY(method, generic) \
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	242 static PyObject * \
20521 cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	243 method(PyObject proxy, PyObject v, PyObject *w) { \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	244 UNWRAP(proxy); \
20532 bc138bc73cdd Remove an unnecessary check for NULL. Fred Drake <fdrake@acm.org> parents: 20521 diff changeset	245 UNWRAP(v); \
20521 cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	246 if (w != NULL) \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	247 UNWRAP(w); \
cb87bd97f740 When weakref proxies are involved in binary & ternary slot operations, Fred Drake <fdrake@acm.org> parents: 20280 diff changeset	248 return generic(proxy, v, w); \
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	249 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	250
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	251
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	252 /* direct slots */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	253
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	254 WRAP_BINARY(proxy_getattr, PyObject_GetAttr)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	255 WRAP_UNARY(proxy_str, PyObject_Str)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	256 WRAP_TERNARY(proxy_call, PyEval_CallObjectWithKeywords)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	257
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	258 static int
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	259 proxy_print(PyWeakReference proxy, FILE fp, int flags)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	260 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	261 if (!proxy_checkref(proxy))
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	262 return -1;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	263 return PyObject_Print(PyWeakref_GET_OBJECT(proxy), fp, flags);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	264 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	265
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	266 static PyObject *
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	267 proxy_repr(PyWeakReference *proxy)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	268 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	269 char buf[160];
21083 d3b6401ca273 weakref_repr(), proxy_repr(): Conversion of sprintf() to Barry Warsaw <barry@python.org> parents: 21066 diff changeset	270 PyOS_snprintf(buf, sizeof(buf),
d3b6401ca273 weakref_repr(), proxy_repr(): Conversion of sprintf() to Barry Warsaw <barry@python.org> parents: 21066 diff changeset	271 "<weakref at %p to %.100s at %p>", proxy,
d3b6401ca273 weakref_repr(), proxy_repr(): Conversion of sprintf() to Barry Warsaw <barry@python.org> parents: 21066 diff changeset	272 PyWeakref_GET_OBJECT(proxy)->ob_type->tp_name,
d3b6401ca273 weakref_repr(), proxy_repr(): Conversion of sprintf() to Barry Warsaw <barry@python.org> parents: 21066 diff changeset	273 PyWeakref_GET_OBJECT(proxy));
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	274 return PyString_FromString(buf);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	275 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	276
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	277
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	278 static int
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	279 proxy_setattr(PyWeakReference proxy, PyObject name, PyObject *value)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	280 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	281 if (!proxy_checkref(proxy))
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	282 return -1;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	283 return PyObject_SetAttr(PyWeakref_GET_OBJECT(proxy), name, value);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	284 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	285
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	286 static int
21483 873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	287 proxy_compare(PyObject proxy, PyObject v)
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	288 {
21483 873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	289 UNWRAP_I(proxy);
873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	290 UNWRAP_I(v);
873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	291 return PyObject_Compare(proxy, v);
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	292 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	293
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	294 /* number slots */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	295 WRAP_BINARY(proxy_add, PyNumber_Add)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	296 WRAP_BINARY(proxy_sub, PyNumber_Subtract)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	297 WRAP_BINARY(proxy_mul, PyNumber_Multiply)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	298 WRAP_BINARY(proxy_div, PyNumber_Divide)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	299 WRAP_BINARY(proxy_mod, PyNumber_Remainder)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	300 WRAP_BINARY(proxy_divmod, PyNumber_Divmod)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	301 WRAP_TERNARY(proxy_pow, PyNumber_Power)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	302 WRAP_UNARY(proxy_neg, PyNumber_Negative)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	303 WRAP_UNARY(proxy_pos, PyNumber_Positive)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	304 WRAP_UNARY(proxy_abs, PyNumber_Absolute)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	305 WRAP_UNARY(proxy_invert, PyNumber_Invert)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	306 WRAP_BINARY(proxy_lshift, PyNumber_Lshift)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	307 WRAP_BINARY(proxy_rshift, PyNumber_Rshift)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	308 WRAP_BINARY(proxy_and, PyNumber_And)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	309 WRAP_BINARY(proxy_xor, PyNumber_Xor)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	310 WRAP_BINARY(proxy_or, PyNumber_Or)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	311 WRAP_UNARY(proxy_int, PyNumber_Int)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	312 WRAP_UNARY(proxy_long, PyNumber_Long)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	313 WRAP_UNARY(proxy_float, PyNumber_Float)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	314 WRAP_BINARY(proxy_iadd, PyNumber_InPlaceAdd)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	315 WRAP_BINARY(proxy_isub, PyNumber_InPlaceSubtract)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	316 WRAP_BINARY(proxy_imul, PyNumber_InPlaceMultiply)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	317 WRAP_BINARY(proxy_idiv, PyNumber_InPlaceDivide)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	318 WRAP_BINARY(proxy_imod, PyNumber_InPlaceRemainder)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	319 WRAP_TERNARY(proxy_ipow, PyNumber_InPlacePower)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	320 WRAP_BINARY(proxy_ilshift, PyNumber_InPlaceLshift)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	321 WRAP_BINARY(proxy_irshift, PyNumber_InPlaceRshift)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	322 WRAP_BINARY(proxy_iand, PyNumber_InPlaceAnd)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	323 WRAP_BINARY(proxy_ixor, PyNumber_InPlaceXor)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	324 WRAP_BINARY(proxy_ior, PyNumber_InPlaceOr)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	325
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	326 static int
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	327 proxy_nonzero(PyWeakReference *proxy)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	328 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	329 PyObject *o = PyWeakref_GET_OBJECT(proxy);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	330 if (!proxy_checkref(proxy))
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	331 return 1;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	332 if (o->ob_type->tp_as_number &&
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	333 o->ob_type->tp_as_number->nb_nonzero)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	334 return (*o->ob_type->tp_as_number->nb_nonzero)(o);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	335 else
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	336 return 1;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	337 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	338
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	339 /* sequence slots */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	340
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	341 static PyObject *
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	342 proxy_slice(PyWeakReference *proxy, int i, int j)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	343 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	344 if (!proxy_checkref(proxy))
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	345 return NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	346 return PySequence_GetSlice(PyWeakref_GET_OBJECT(proxy), i, j);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	347 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	348
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	349 static int
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	350 proxy_ass_slice(PyWeakReference proxy, int i, int j, PyObject value)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	351 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	352 if (!proxy_checkref(proxy))
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	353 return -1;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	354 return PySequence_SetSlice(PyWeakref_GET_OBJECT(proxy), i, j, value);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	355 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	356
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	357 static int
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	358 proxy_contains(PyWeakReference proxy, PyObject value)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	359 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	360 if (!proxy_checkref(proxy))
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	361 return -1;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	362 return PySequence_Contains(PyWeakref_GET_OBJECT(proxy), value);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	363 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	364
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	365
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	366 /* mapping slots */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	367
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	368 static int
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	369 proxy_length(PyWeakReference *proxy)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	370 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	371 if (!proxy_checkref(proxy))
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	372 return -1;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	373 return PyObject_Length(PyWeakref_GET_OBJECT(proxy));
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	374 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	375
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	376 WRAP_BINARY(proxy_getitem, PyObject_GetItem)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	377
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	378 static int
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	379 proxy_setitem(PyWeakReference proxy, PyObject key, PyObject *value)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	380 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	381 if (!proxy_checkref(proxy))
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	382 return -1;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	383 return PyObject_SetItem(PyWeakref_GET_OBJECT(proxy), key, value);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	384 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	385
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	386
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	387 static PyNumberMethods proxy_as_number = {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	388 (binaryfunc)proxy_add, /nb_add/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	389 (binaryfunc)proxy_sub, /nb_subtract/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	390 (binaryfunc)proxy_mul, /nb_multiply/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	391 (binaryfunc)proxy_div, /nb_divide/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	392 (binaryfunc)proxy_mod, /nb_remainder/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	393 (binaryfunc)proxy_divmod, /nb_divmod/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	394 (ternaryfunc)proxy_pow, /nb_power/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	395 (unaryfunc)proxy_neg, /nb_negative/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	396 (unaryfunc)proxy_pos, /nb_positive/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	397 (unaryfunc)proxy_abs, /nb_absolute/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	398 (inquiry)proxy_nonzero, /nb_nonzero/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	399 (unaryfunc)proxy_invert, /nb_invert/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	400 (binaryfunc)proxy_lshift, /nb_lshift/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	401 (binaryfunc)proxy_rshift, /nb_rshift/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	402 (binaryfunc)proxy_and, /nb_and/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	403 (binaryfunc)proxy_xor, /nb_xor/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	404 (binaryfunc)proxy_or, /nb_or/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	405 (coercion)0, /nb_coerce/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	406 (unaryfunc)proxy_int, /nb_int/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	407 (unaryfunc)proxy_long, /nb_long/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	408 (unaryfunc)proxy_float, /nb_float/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	409 (unaryfunc)0, /nb_oct/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	410 (unaryfunc)0, /nb_hex/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	411 (binaryfunc)proxy_iadd, /nb_inplace_add/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	412 (binaryfunc)proxy_isub, /nb_inplace_subtract/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	413 (binaryfunc)proxy_imul, /nb_inplace_multiply/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	414 (binaryfunc)proxy_idiv, /nb_inplace_divide/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	415 (binaryfunc)proxy_imod, /nb_inplace_remainder/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	416 (ternaryfunc)proxy_ipow, /nb_inplace_power/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	417 (binaryfunc)proxy_ilshift, /nb_inplace_lshift/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	418 (binaryfunc)proxy_irshift, /nb_inplace_rshift/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	419 (binaryfunc)proxy_iand, /nb_inplace_and/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	420 (binaryfunc)proxy_ixor, /nb_inplace_xor/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	421 (binaryfunc)proxy_ior, /nb_inplace_or/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	422 };
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	423
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	424 static PySequenceMethods proxy_as_sequence = {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	425 (inquiry)proxy_length, /sq_length/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	426 0, /sq_concat/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	427 0, /sq_repeat/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	428 0, /sq_item/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	429 (intintargfunc)proxy_slice, /sq_slice/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	430 0, /sq_ass_item/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	431 (intintobjargproc)proxy_ass_slice, /sq_ass_slice/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	432 (objobjproc)proxy_contains, /* sq_contains */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	433 };
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	434
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	435 static PyMappingMethods proxy_as_mapping = {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	436 (inquiry)proxy_length, /mp_length/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	437 (binaryfunc)proxy_getitem, /mp_subscript/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	438 (objobjargproc)proxy_setitem, /mp_ass_subscript/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	439 };
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	440
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	441
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	442 PyTypeObject
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	443 _PyWeakref_ProxyType = {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	444 PyObject_HEAD_INIT(&PyType_Type)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	445 0,
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	446 "weakproxy",
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	447 sizeof(PyWeakReference),
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	448 0,
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	449 /* methods */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	450 (destructor)weakref_dealloc,/tp_dealloc/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	451 (printfunc)proxy_print, /tp_print/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	452 0, /tp_getattr/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	453 0, /tp_setattr/
21483 873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	454 proxy_compare, /tp_compare/
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	455 (unaryfunc)proxy_repr, /tp_repr/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	456 &proxy_as_number, /tp_as_number/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	457 &proxy_as_sequence, /tp_as_sequence/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	458 &proxy_as_mapping, /tp_as_mapping/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	459 0, /tp_hash/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	460 (ternaryfunc)0, /tp_call/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	461 (unaryfunc)proxy_str, /tp_str/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	462 (getattrofunc)proxy_getattr,/tp_getattro/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	463 (setattrofunc)proxy_setattr,/tp_setattro/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	464 0, /tp_as_buffer/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	465 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	466 \|Py_TPFLAGS_CHECKTYPES, /tp_flags/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	467 0, /tp_doc/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	468 (traverseproc)gc_traverse, /tp_traverse/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	469 (inquiry)gc_clear, /tp_clear/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	470 };
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	471
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	472
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	473 PyTypeObject
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	474 _PyWeakref_CallableProxyType = {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	475 PyObject_HEAD_INIT(&PyType_Type)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	476 0,
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	477 "weakcallableproxy",
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	478 sizeof(PyWeakReference),
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	479 0,
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	480 /* methods */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	481 (destructor)weakref_dealloc,/tp_dealloc/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	482 (printfunc)proxy_print, /tp_print/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	483 0, /tp_getattr/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	484 0, /tp_setattr/
21483 873291a4889e proxy_compare(): Make sure that we unwrap both objects being compared if Fred Drake <fdrake@acm.org> parents: 21339 diff changeset	485 proxy_compare, /tp_compare/
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	486 (unaryfunc)proxy_repr, /tp_repr/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	487 &proxy_as_number, /tp_as_number/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	488 &proxy_as_sequence, /tp_as_sequence/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	489 &proxy_as_mapping, /tp_as_mapping/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	490 0, /tp_hash/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	491 (ternaryfunc)proxy_call, /tp_call/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	492 (unaryfunc)proxy_str, /tp_str/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	493 (getattrofunc)proxy_getattr,/tp_getattro/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	494 (setattrofunc)proxy_setattr,/tp_setattro/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	495 0, /tp_as_buffer/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	496 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	497 \|Py_TPFLAGS_CHECKTYPES, /tp_flags/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	498 0, /tp_doc/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	499 (traverseproc)gc_traverse, /tp_traverse/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	500 (inquiry)gc_clear, /tp_clear/
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	501 };
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	502
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	503
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	504 /* Given the head of an object's list of weak references, extract the
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	505 * two callback-less refs (ref and proxy). Used to determine if the
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	506 * shared references exist and to determine the back link for newly
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	507 * inserted references.
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	508 */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	509 static void
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	510 get_basic_refs(PyWeakReference *head,
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	511 PyWeakReference refp, PyWeakReference proxyp)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	512 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	513 *refp = NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	514 *proxyp = NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	515
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	516 if (head != NULL && head->wr_callback == NULL) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	517 if (head->ob_type == &_PyWeakref_RefType) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	518 *refp = head;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	519 head = head->wr_next;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	520 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	521 if (head != NULL && head->wr_callback == NULL) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	522 *proxyp = head;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	523 head = head->wr_next;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	524 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	525 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	526 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	527
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	528 /* Insert 'newref' in the list after 'prev'. Both must be non-NULL. */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	529 static void
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	530 insert_after(PyWeakReference newref, PyWeakReference prev)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	531 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	532 newref->wr_prev = prev;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	533 newref->wr_next = prev->wr_next;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	534 if (prev->wr_next != NULL)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	535 prev->wr_next->wr_prev = newref;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	536 prev->wr_next = newref;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	537 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	538
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	539 /* Insert 'newref' at the head of the list; 'list' points to the variable
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	540 * that stores the head.
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	541 */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	542 static void
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	543 insert_head(PyWeakReference newref, PyWeakReference *list)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	544 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	545 PyWeakReference next = list;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	546
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	547 newref->wr_prev = NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	548 newref->wr_next = next;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	549 if (next != NULL)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	550 next->wr_prev = newref;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	551 *list = newref;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	552 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	553
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	554
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	555 PyObject *
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	556 PyWeakref_NewRef(PyObject ob, PyObject callback)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	557 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	558 PyWeakReference *result = NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	559 PyWeakReference **list;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	560 PyWeakReference ref, proxy;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	561
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	562 if (!PyType_SUPPORTS_WEAKREFS(ob->ob_type)) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	563 PyErr_Format(PyExc_TypeError,
20613 bf4b37518c14 Referencable is not a word, so don't use it in an error message <wink>. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20532 diff changeset	564 "cannot create weak reference to '%s' object",
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	565 ob->ob_type->tp_name);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	566 return NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	567 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	568 list = GET_WEAKREFS_LISTPTR(ob);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	569 get_basic_refs(*list, &ref, &proxy);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	570 if (callback == NULL \|\| callback == Py_None)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	571 /* return existing weak reference if it exists */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	572 result = ref;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	573 if (result != NULL)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	574 Py_XINCREF(result);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	575 else {
22607 ac24c2c9bcaf Remove weakref free list. This has the side effect of fixing a memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21483 diff changeset	576 result = new_weakref(ob, callback);
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	577 if (result != NULL) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	578 if (callback == NULL) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	579 insert_head(result, list);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	580 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	581 else {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	582 PyWeakReference *prev = (proxy == NULL) ? ref : proxy;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	583
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	584 if (prev == NULL)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	585 insert_head(result, list);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	586 else
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	587 insert_after(result, prev);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	588 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	589 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	590 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	591 return (PyObject *) result;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	592 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	593
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	594
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	595 PyObject *
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	596 PyWeakref_NewProxy(PyObject ob, PyObject callback)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	597 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	598 PyWeakReference *result = NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	599 PyWeakReference **list;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	600 PyWeakReference ref, proxy;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	601
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	602 if (!PyType_SUPPORTS_WEAKREFS(ob->ob_type)) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	603 PyErr_Format(PyExc_TypeError,
20613 bf4b37518c14 Referencable is not a word, so don't use it in an error message <wink>. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20532 diff changeset	604 "cannot create weak reference to '%s' object",
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	605 ob->ob_type->tp_name);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	606 return NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	607 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	608 list = GET_WEAKREFS_LISTPTR(ob);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	609 get_basic_refs(*list, &ref, &proxy);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	610 if (callback == NULL)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	611 /* attempt to return an existing weak reference if it exists */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	612 result = proxy;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	613 if (result != NULL)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	614 Py_XINCREF(result);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	615 else {
22607 ac24c2c9bcaf Remove weakref free list. This has the side effect of fixing a memory Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21483 diff changeset	616 result = new_weakref(ob, callback);
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	617 if (result != NULL) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	618 PyWeakReference *prev;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	619
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	620 if (PyCallable_Check(ob))
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	621 result->ob_type = &_PyWeakref_CallableProxyType;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	622 else
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	623 result->ob_type = &_PyWeakref_ProxyType;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	624 if (callback == NULL)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	625 prev = ref;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	626 else
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	627 prev = (proxy == NULL) ? ref : proxy;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	628
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	629 if (prev == NULL)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	630 insert_head(result, list);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	631 else
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	632 insert_after(result, prev);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	633 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	634 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	635 return (PyObject *) result;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	636 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	637
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	638
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	639 PyObject *
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	640 PyWeakref_GetObject(PyObject *ref)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	641 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	642 if (ref == NULL \|\| !PyWeakref_Check(ref)) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	643 PyErr_BadInternalCall();
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	644 return NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	645 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	646 return PyWeakref_GET_OBJECT(ref);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	647 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	648
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	649
21339 525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	650 static void
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	651 handle_callback(PyWeakReference ref, PyObject callback)
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	652 {
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	653 PyObject *cbresult = PyObject_CallFunction(callback, "O", ref);
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	654
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	655 if (cbresult == NULL)
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	656 PyErr_WriteUnraisable(callback);
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	657 else
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	658 Py_DECREF(cbresult);
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	659 }
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	660
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	661 /* This function is called by the tp_dealloc handler to clear weak references.
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	662 *
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	663 * This iterates through the weak references for 'object' and calls callbacks
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	664 * for those references which have one. It returns when all callbacks have
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	665 * been attempted.
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	666 */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	667 void
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	668 PyObject_ClearWeakRefs(PyObject *object)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	669 {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	670 PyWeakReference **list;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	671
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	672 if (object == NULL
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	673 \|\| !PyType_SUPPORTS_WEAKREFS(object->ob_type)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	674 \|\| object->ob_refcnt != 0) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	675 PyErr_BadInternalCall();
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	676 return;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	677 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	678 list = GET_WEAKREFS_LISTPTR(object);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	679 /* Remove the callback-less basic and proxy references */
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	680 if (list != NULL && (list)->wr_callback == NULL) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	681 clear_weakref(*list);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	682 if (list != NULL && (list)->wr_callback == NULL)
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	683 clear_weakref(*list);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	684 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	685 if (*list != NULL) {
21339 525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	686 PyWeakReference current = list;
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	687 int count = _PyWeakref_GetWeakrefCount(current);
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	688 int restore_error = PyErr_Occurred() ? 1 : 0;
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	689 PyObject err_type, err_value, *err_tb;
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	690
21339 525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	691 if (restore_error)
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	692 PyErr_Fetch(&err_type, &err_value, &err_tb);
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	693 if (count == 1) {
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	694 PyObject *callback = current->wr_callback;
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	695
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	696 current->wr_callback = NULL;
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	697 clear_weakref(current);
21339 525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	698 handle_callback(current, callback);
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	699 Py_DECREF(callback);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	700 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	701 else {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	702 PyObject tuple = PyTuple_New(count 2);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	703 int i = 0;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	704
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	705 for (i = 0; i < count; ++i) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	706 PyWeakReference *next = current->wr_next;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	707
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	708 Py_INCREF(current);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	709 PyTuple_SET_ITEM(tuple, i * 2, (PyObject *) current);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	710 PyTuple_SET_ITEM(tuple, i * 2 + 1, current->wr_callback);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	711 current->wr_callback = NULL;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	712 clear_weakref(current);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	713 current = next;
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	714 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	715 for (i = 0; i < count; ++i) {
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	716 PyObject current = PyTuple_GET_ITEM(tuple, i 2);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	717 PyObject callback = PyTuple_GET_ITEM(tuple, i 2 + 1);
21339 525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	718
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	719 handle_callback((PyWeakReference *)current, callback);
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	720 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	721 Py_DECREF(tuple);
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	722 }
21339 525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	723 if (restore_error)
525c77368cd0 Make sure that when we invoke callback functions associated with weak Fred Drake <fdrake@acm.org> parents: 21083 diff changeset	724 PyErr_Restore(err_type, err_value, err_tb);
20280 97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	725 }
97cfa461d793 The weak reference implementation, separated from the weakref module. Fred Drake <fdrake@acm.org> parents: diff changeset	726 }

Mercurial > cpython-lru_cache-weakref

annotate Objects/weakrefobject.c @ 24042:63fbbed10714 legacy-trunk