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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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02193a3552
Original commit message from CVS: * gst/gstbuffer.override: a buffer is not a boxed * gst/gstobject.override: use Py_VISIT for cleaner and more pythonic code do not visit GstObjects that still have a parent
173 lines
4.7 KiB
C
173 lines
4.7 KiB
C
/* -*- Mode: C; ; c-file-style: "python" -*- */
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/* gst-python
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* Copyright (C) 2005 Edward Hervey
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Edward Hervey <edward@fluendo.com>
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*/
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%%
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ignore
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gst_object_default_deep_notify
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gst_object_check_uniqueness
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gst_object_replace
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%%
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override-attr GstObject.__gstrefcount__
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/* keep this attribute around even after 2.8 for compatibility reasons */
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static PyObject *
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_wrap_gst_object__get___gstrefcount__(PyGObject *self, void *closure)
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{
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return PyInt_FromLong(GST_OBJECT_REFCOUNT_VALUE(self->obj));
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}
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/* < GLib 2.8 */
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/* because of our gst_object_ref/_unref, we do our own GC-related
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* functions:
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* our own tp_traverse that checks the GstObject refcount,
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* and reuse _dealloc and _clear from gobject.GObject for ours
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* compare with pygtk/gobject/pygobject.c
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*/
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/* a define is a little evil, but it seems to generate the right code
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* to allow us to do our garbage collection routines */
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%%
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override-slot GstObject.tp_flags
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#define _wrap_gst_object_tp_flags Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC
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%%
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override-slot GstObject.tp_traverse
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static int
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_wrap_gst_object_tp_traverse(PyGObject *self, visitproc visit, void *arg)
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{
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int ret = 0;
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GSList *tmp;
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GST_LOG_OBJECT(self->obj,
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"gst.Object.tp_traverse");
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Py_VISIT(self->inst_dict);
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for (tmp = self->closures; tmp != NULL; tmp = tmp->next) {
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PyGClosure *closure = tmp->data;
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Py_VISIT(closure->callback);
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Py_VISIT(closure->extra_args);
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Py_VISIT(closure->swap_data);
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}
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if (self->obj && GST_OBJECT_REFCOUNT_VALUE(self->obj) == 1 && GST_OBJECT(self->obj)->parent == NULL) {
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GST_DEBUG_OBJECT(self->obj,
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"gst.Object.tp_traverse: GstObject refcount of %p is 1, visit",
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self->obj);
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ret = visit((PyObject *)self, arg);
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GST_LOG_OBJECT(self->obj,
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"gst.Object.tp_traverse: GstObject %p visited, ret %d",
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self->obj, ret);
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}
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return ret;
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}
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%%
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override-slot GstObject.tp_clear
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int
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_wrap_gst_object_tp_clear(PyGObject *self)
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{
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int ret;
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GObject *obj = self->obj;
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/* if we're a GstObject, we want to monkeypatch the GObject.tp_clear's
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* g_object_unref and "replace" it with a gst_object_unref */
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if (! GST_IS_OBJECT (obj))
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obj = NULL;
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else {
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GST_DEBUG_OBJECT (obj,
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"gst.Object.tp_clear, pyo %p, pyo rc %d, gsto %p, gst rc %d",
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self, ((PyObject *) self)->ob_refcnt, obj,
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GST_OBJECT_REFCOUNT_VALUE (obj));
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g_object_ref (obj);
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}
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ret = PyGObject_Type.tp_clear((PyObject *) self);
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if (obj)
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gst_object_unref (obj);
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return ret;
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}
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%%
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override-slot GstObject.tp_dealloc
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void
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_wrap_gst_object_tp_dealloc(PyGObject *self)
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{
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GObject *obj = self->obj;
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/* if we're a GstObject, we want to monkeypatch the GObject.tp_dealloc's
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* g_object_unref and "replace" it with a gst_object_unref */
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if (! GST_IS_OBJECT (obj))
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obj = NULL;
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else {
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GST_DEBUG_OBJECT (obj, "gst.Object.tp_dealloc");
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g_object_ref (obj);
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}
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PyGObject_Type.tp_dealloc((PyObject *) self);
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if (obj)
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gst_object_unref (obj);
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}
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%%
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override-slot GstObject.tp_repr
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static PyObject *
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_wrap_gst_object_tp_repr(PyObject *self)
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{
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gchar *repr;
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PyObject *ret;
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GstObject *object = GST_OBJECT (pygobject_get (self));
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repr = g_strdup_printf ("<%s object (%s) at 0x%lx>",
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self->ob_type->tp_name,
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GST_OBJECT_NAME(object) ? GST_OBJECT_NAME(object) : "unnamed",
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(long)self);
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ret = PyString_FromString(repr);
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g_free (repr);
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return ret;
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}
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%%
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override-slot GstObject.tp_str
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static PyObject *
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_wrap_gst_object_tp_str(PyObject *self)
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{
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gchar *repr, *path;
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PyObject *ret;
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GstObject *object = GST_OBJECT (pygobject_get (self));
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path = gst_object_get_path_string (object);
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repr = g_strdup_printf ("%s (%s)",
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path, self->ob_type->tp_name);
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ret = PyString_FromString(repr);
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g_free (repr);
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g_free (path);
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return ret;
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}
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