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added floating reference count. g_object_is_floating():

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Wed Nov 23 18:01:46 2005  Tim Janik  <timj@imendio.com>

        * gobject.[hc]: added floating reference count.
        g_object_is_floating():
        g_object_ref_sink(): new functions to deal with floating references.
        g_object_force_floating(): new funciton for object implementations
        to set the floating flag.

        * gobject.c (g_object_init): make objects initially floating.

Wed Nov 23 17:58:13 2005  Tim Janik  <timj@gtk.org>

        * gparam.[hc]: added g_param_spec_ref_sink().
This commit is contained in:
Tim Janik 2005-11-23 17:54:41 +00:00 committed by Tim Janik
parent 311094aeab
commit 6e5f465924
6 changed files with 78 additions and 2 deletions
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14
gobject/ChangeLog
View File

@ -1,3 +1,17 @@
Wed Nov 23 18:01:46 2005 Tim Janik <timj@imendio.com>
* gobject.[hc]: added floating reference count.
g_object_is_floating():
g_object_ref_sink(): new functions to deal with floating references.
g_object_force_floating(): new funciton for object implementations
to set the floating flag.
* gobject.c (g_object_init): make objects initially floating.
Wed Nov 23 17:58:13 2005 Tim Janik <timj@gtk.org>
* gparam.[hc]: added g_param_spec_ref_sink().
Wed Nov 23 13:36:02 2005 Tim Janik <timj@gtk.org>
* gboxed.[hc]: minor cleanups, implemented G_TYPE_HASH_TABLE.

45
gobject/gobject.c
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@ -42,7 +42,8 @@
#define OBJECT_HAS_TOGGLE_REF_FLAG 0x1
#define OBJECT_HAS_TOGGLE_REF(object) \
((G_DATALIST_GET_FLAGS(&(object)->qdata) & OBJECT_HAS_TOGGLE_REF_FLAG) != 0)
((G_DATALIST_GET_FLAGS (&(object)->qdata) & OBJECT_HAS_TOGGLE_REF_FLAG) != 0)
#define OBJECT_FLOATING_FLAG 0x2
/* --- signals --- */
@ -472,6 +473,7 @@ g_object_init (GObject *object)
{
object->ref_count = 1;
g_datalist_init (&object->qdata);
g_object_force_floating (object);
/* freeze object's notification queue, g_object_newv() preserves pairedness */
g_object_notify_queue_freeze (object, &property_notify_context);
@ -1518,6 +1520,47 @@ g_object_remove_weak_pointer (GObject *object,
weak_pointer_location);
}
gboolean
g_object_is_floating (gpointer _object)
{
GObject *object = _object;
g_return_val_if_fail (G_IS_OBJECT (object), FALSE);
return ((gsize) g_atomic_pointer_get (&object->qdata) & OBJECT_FLOATING_FLAG) != 0;
}
gpointer
g_object_ref_sink (gpointer _object)
{
GObject *object = _object;
gpointer oldvalue;
g_return_val_if_fail (G_IS_OBJECT (object), object);
g_return_val_if_fail (object->ref_count >= 1, object);
g_object_ref (object);
do
{
oldvalue = g_atomic_pointer_get (&object->qdata);
}
while (!g_atomic_pointer_compare_and_exchange ((void**) &object->qdata, oldvalue,
(gpointer) ((gsize) oldvalue & ~(gsize) OBJECT_FLOATING_FLAG)));
if ((gsize) oldvalue & OBJECT_FLOATING_FLAG)
g_object_unref (object);
return object;
}
void
g_object_force_floating (GObject *object)
{
gpointer oldvalue;
g_return_if_fail (G_IS_OBJECT (object));
g_return_if_fail (object->ref_count >= 1);
do
{
oldvalue = g_atomic_pointer_get (&object->qdata);
}
while (!g_atomic_pointer_compare_and_exchange ((void**) &object->qdata, oldvalue,
(gpointer) ((gsize) oldvalue | OBJECT_FLOATING_FLAG)));
}
typedef struct {
GObject *object;
guint n_toggle_refs;

3
gobject/gobject.h
View File

@ -166,6 +166,8 @@ void g_object_freeze_notify (GObject *object);
void g_object_notify (GObject *object,
const gchar *property_name);
void g_object_thaw_notify (GObject *object);
gboolean g_object_is_floating (gpointer object);
gpointer g_object_ref_sink (gpointer object);
gpointer g_object_ref (gpointer object);
void g_object_unref (gpointer object);
void g_object_weak_ref (GObject *object,
@ -232,6 +234,7 @@ gulong g_signal_connect_object (gpointer instance,
/*< protected >*/
void g_object_force_floating (GObject *object);
void g_object_run_dispose (GObject *object);

6
gobject/gobject.symbols
View File

@ -131,7 +131,11 @@ g_object_new
g_object_newv
g_object_new_valist
g_object_notify
g_object_is_floating
g_object_ref_sink
g_object_force_floating
g_object_ref
g_object_unref
g_object_remove_weak_pointer
g_object_run_dispose
g_object_set G_GNUC_NULL_TERMINATED
@ -144,7 +148,6 @@ g_object_set_valist
g_object_steal_data
g_object_steal_qdata
g_object_thaw_notify
g_object_unref
g_object_watch_closure
g_object_weak_ref
g_object_weak_unref
@ -196,6 +199,7 @@ g_param_spec_get_redirect_target
g_param_spec_internal
g_param_type_register_static
g_param_spec_ref
g_param_spec_ref_sink
g_param_spec_unref
g_param_spec_sink
g_param_spec_steal_qdata

11
gobject/gparam.c
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@ -201,6 +201,17 @@ g_param_spec_sink (GParamSpec *pspec)
g_param_spec_unref (pspec);
}
GParamSpec*
g_param_spec_ref_sink (GParamSpec *pspec)
{
g_return_val_if_fail (G_IS_PARAM_SPEC (pspec), NULL);
g_return_val_if_fail (pspec->ref_count > 0, NULL);
g_param_spec_ref (pspec);
g_param_spec_sink (pspec);
return pspec;
}
G_CONST_RETURN gchar*
g_param_spec_get_name (GParamSpec *pspec)
{

1
gobject/gparam.h
View File

@ -117,6 +117,7 @@ struct _GParameter /* auxillary structure for _setv() variants */
GParamSpec* g_param_spec_ref (GParamSpec *pspec);
void g_param_spec_unref (GParamSpec *pspec);
void g_param_spec_sink (GParamSpec *pspec);
GParamSpec* g_param_spec_ref_sink (GParamSpec *pspec);
gpointer g_param_spec_get_qdata (GParamSpec *pspec,
GQuark quark);
void g_param_spec_set_qdata (GParamSpec *pspec,