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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>
#include <pyglib-python-compat.h>
static void
_struct_dealloc (PyGIStruct *self)
{
GIBaseInfo *info = _pygi_object_get_gi_info (
(PyObject *) self,
&PyGIStructInfo_Type);
PyObject_GC_UnTrack ( (PyObject *) self);
PyObject_ClearWeakRefs ( (PyObject *) self);
if (info != NULL && g_struct_info_is_foreign ( (GIStructInfo *) info)) {
pygi_struct_foreign_release (info, ( (PyGPointer *) self)->pointer);
} else if (self->free_on_dealloc) {
g_free ( ( (PyGPointer *) self)->pointer);
}
g_base_info_unref (info);
Py_TYPE( (PyGPointer *) self )->tp_free ( (PyObject *) self);
}
static PyObject *
_struct_new (PyTypeObject *type,
PyObject *args,
PyObject *kwargs)
{
static char *kwlist[] = { NULL };
GIBaseInfo *info;
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;
}
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;
}
PYGLIB_DEFINE_TYPE("gi.Struct", PyGIStruct_Type, PyGIStruct);
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;
PyGIStruct_Type.tp_dealloc = (destructor) _struct_dealloc;
PyGIStruct_Type.tp_flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE);
if (PyType_Ready (&PyGIStruct_Type))
return;
if (PyModule_AddObject (m, "Struct", (PyObject *) &PyGIStruct_Type))
return;
}
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