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part 2 of Neil Schemenauer's GC patches:

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This patch modifies the type structures of objects that
participate in GC.  The object's tp_basicsize is increased when
GC is enabled.  GC information is prefixed to the object to
maintain binary compatibility.  GC objects also define the
tp_flag Py_TPFLAGS_GC.
This commit is contained in:
Jeremy Hylton 2000-06-23 19:37:02 +00:00
parent d22162bac7
commit d08b4c4524
7 changed files with 36 additions and 20 deletions
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11
Objects/listobject.c
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@ -71,7 +71,8 @@ PyList_New(size)
return PyErr_NoMemory();
}
/* PyObject_NewVar is inlined */
op = (PyListObject *) PyObject_MALLOC(sizeof(PyListObject));
op = (PyListObject *) PyObject_MALLOC(sizeof(PyListObject)
+ PyGC_INFO_SIZE);
if (op == NULL) {
return PyErr_NoMemory();
}
@ -1497,7 +1498,7 @@ PyTypeObject PyList_Type = {
PyObject_HEAD_INIT(&PyType_Type)
0,
"list",
sizeof(PyListObject),
sizeof(PyListObject) + PyGC_INFO_SIZE,
0,
(destructor)list_dealloc, /*tp_dealloc*/
(printfunc)list_print, /*tp_print*/
@ -1514,7 +1515,7 @@ PyTypeObject PyList_Type = {
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT, /*tp_flags*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_GC, /*tp_flags*/
0, /* tp_doc */
(traverseproc)list_traverse, /* tp_traverse */
(inquiry)list_clear, /* tp_clear */
@ -1576,7 +1577,7 @@ static PyTypeObject immutable_list_type = {
PyObject_HEAD_INIT(&PyType_Type)
0,
"list (immutable, during sort)",
sizeof(PyListObject),
sizeof(PyListObject) + PyGC_INFO_SIZE,
0,
0, /*tp_dealloc*/ /* Cannot happen */
(printfunc)list_print, /*tp_print*/
@ -1593,7 +1594,7 @@ static PyTypeObject immutable_list_type = {
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT, /*tp_flags*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_GC, /*tp_flags*/
0, /* tp_doc */
(traverseproc)list_traverse, /* tp_traverse */
};