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/* -*- Mode: C; c-basic-offset: 4 -*-
* vim: tabstop=4 shiftwidth=4 expandtab
*
* Copyright (C) 2009 Simon van der Linden <svdlinden@src.gnome.org>
*
* pygi-struct.c: wrapper to handle non-registered structures.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include "pygi-private.h"
#include <pygobject.h>
#include <girepository.h>
static void
_struct_dealloc (PyGIStruct *self)
{
PyObject_GC_UnTrack((PyObject *)self);
PyObject_ClearWeakRefs((PyObject *)self);
if (self->free_on_dealloc) {
g_free(((PyGPointer *)self)->pointer);
}
Py_TYPE((PyGPointer *)self)->tp_free((PyObject *)self);
}
static PyObject *
_struct_new (PyTypeObject *type,
PyObject *args,
PyObject *kwargs)
{
static char *kwlist[] = { NULL };
GIBaseInfo *info;
gboolean is_simple;
gsize size;
gpointer pointer;
PyObject *self = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "", kwlist)) {
return NULL;
}
info = _pygi_object_get_gi_info((PyObject *)type, &PyGIStructInfo_Type);
if (info == NULL) {
if (PyErr_ExceptionMatches(PyExc_AttributeError)) {
PyErr_Format(PyExc_TypeError, "missing introspection information");
}
return NULL;
}
is_simple = pygi_g_struct_info_is_simple((GIStructInfo *)info);
if (!is_simple) {
PyErr_Format(PyExc_TypeError, "cannot create '%s' instances", type->tp_name);
goto out;
}
size = g_struct_info_get_size((GIStructInfo *)info);
pointer = g_try_malloc0(size);
if (pointer == NULL) {
PyErr_NoMemory();
goto out;
}
self = _pygi_struct_new(type, pointer, TRUE);
if (self == NULL) {
g_free(pointer);
}
out:
g_base_info_unref(info);
return (PyObject *)self;
}
static int
_struct_init (PyObject *self,
PyObject *args,
PyObject *kwargs)
{
/* Don't call PyGPointer's init, which raises an exception. */
return 0;
}
PyTypeObject PyGIStruct_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"gi.Struct", /* tp_name */
sizeof(PyGIStruct), /* tp_basicsize */
0, /* tp_itemsize */
(destructor)_struct_dealloc, /* tp_dealloc */
(printfunc)NULL, /* tp_print */
(getattrfunc)NULL, /* tp_getattr */
(setattrfunc)NULL, /* tp_setattr */
NULL, /* tp_compare */
(reprfunc)NULL, /* tp_repr */
NULL, /* tp_as_number */
NULL, /* tp_as_sequence */
NULL, /* tp_as_mapping */
(hashfunc)NULL, /* tp_hash */
(ternaryfunc)NULL, /* tp_call */
(reprfunc)NULL, /* tp_str */
(getattrofunc)NULL, /* tp_getattro */
(setattrofunc)NULL, /* tp_setattro */
NULL, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
NULL, /* tp_doc */
(traverseproc)NULL, /* tp_traverse */
(inquiry)NULL, /* tp_clear */
(richcmpfunc)NULL, /* tp_richcompare */
0, /* tp_weaklistoffset */
(getiterfunc)NULL, /* tp_iter */
(iternextfunc)NULL, /* tp_iternext */
NULL, /* tp_methods */
NULL, /* tp_members */
NULL, /* tp_getset */
(PyTypeObject *)NULL, /* tp_base */
};
PyObject *
_pygi_struct_new (PyTypeObject *type,
gpointer pointer,
gboolean free_on_dealloc)
{
PyGIStruct *self;
GType g_type;
if (!PyType_IsSubtype(type, &PyGIStruct_Type)) {
PyErr_SetString(PyExc_TypeError, "must be a subtype of gi.Struct");
return NULL;
}
self = (PyGIStruct *)type->tp_alloc(type, 0);
if (self == NULL) {
return NULL;
}
g_type = pyg_type_from_object((PyObject *)type);
((PyGPointer *)self)->gtype = g_type;
((PyGPointer *)self)->pointer = pointer;
self->free_on_dealloc = free_on_dealloc;
return (PyObject *)self;
}
void
_pygi_struct_register_types (PyObject *m)
{
Py_TYPE(&PyGIStruct_Type) = &PyType_Type;
PyGIStruct_Type.tp_base = &PyGPointer_Type;
PyGIStruct_Type.tp_new = (newfunc)_struct_new;
PyGIStruct_Type.tp_init = (initproc)_struct_init;
if (PyType_Ready(&PyGIStruct_Type))
return;
if (PyModule_AddObject(m, "Struct", (PyObject *)&PyGIStruct_Type))
return;
}
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