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/* -*- Mode: C; c-basic-offset: 4 -*-
* vim: tabstop=4 shiftwidth=4 expandtab
*
* Copyright (C) 2011 John (J5) Palmieri <johnp@redhat.com>, Red Hat, Inc.
*
* pygi-boxed-closure.c: wrapper to handle GClosure box types with C callbacks.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "pygi-ccallback.h"
#include "pygi-util.h"
static PyObject *
_ccallback_vectorcall (PyGICCallback *self, PyObject *const *args,
size_t nargsf, PyObject *kwnames)
{
PyObject *result;
if (self->cache == NULL) {
self->cache = (PyGICCallbackCache *)pygi_ccallback_cache_new (
GI_CALLABLE_INFO (self->info), self->callback);
if (self->cache == NULL) return NULL;
}
result = pygi_ccallback_cache_invoke (self->cache, args, nargsf, kwnames,
self->user_data);
return result;
}
PYGI_DEFINE_TYPE ("gi.CCallback", PyGICCallback_Type, PyGICCallback);
PyObject *
_pygi_ccallback_new (GCallback callback, gpointer user_data, GIScopeType scope,
GICallableInfo *info, GDestroyNotify destroy_notify)
{
PyGICCallback *self;
if (!callback) {
Py_RETURN_NONE;
}
self =
(PyGICCallback *)PyGICCallback_Type.tp_alloc (&PyGICCallback_Type, 0);
if (self == NULL) {
return NULL;
}
self->callback = (GCallback)callback;
self->user_data = user_data;
self->scope = scope;
self->destroy_notify_func = destroy_notify;
self->info = GI_CALLABLE_INFO (gi_base_info_ref (info));
self->vectorcall = (vectorcallfunc)_ccallback_vectorcall;
return (PyObject *)self;
}
static void
_ccallback_dealloc (PyGICCallback *self)
{
gi_base_info_unref ((GIBaseInfo *)self->info);
if (self->cache != NULL) {
pygi_callable_cache_free ((PyGICallableCache *)self->cache);
}
Py_TYPE (self)->tp_free ((PyObject *)self);
}
/**
* Returns 0 on success, or -1 and sets an exception.
*/
int
pygi_ccallback_register_types (PyObject *m)
{
Py_SET_TYPE (&PyGICCallback_Type, &PyType_Type);
PyGICCallback_Type.tp_flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE
| Py_TPFLAGS_HAVE_VECTORCALL);
PyGICCallback_Type.tp_dealloc = (destructor)_ccallback_dealloc;
PyGICCallback_Type.tp_call = PyVectorcall_Call;
PyGICCallback_Type.tp_vectorcall_offset =
offsetof (PyGICCallback, vectorcall);
if (PyType_Ready (&PyGICCallback_Type) < 0) return -1;
Py_INCREF ((PyObject *)&PyGICCallback_Type);
if (PyModule_AddObject (m, "CCallback", (PyObject *)&PyGICCallback_Type)
< 0) {
Py_DECREF ((PyObject *)&PyGICCallback_Type);
return -1;
}
return 0;
}
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