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conditionally thaw the notify queue after construction, so we don't

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Wed Aug 16 13:55:08 2006  Tim Janik  <timj@imendio.com>

        * gobject.c: conditionally thaw the notify queue after construction,
        so we don't trigger warnings when trying to thaw an unfrozen singleton.
This commit is contained in:
Tim Janik 2006-08-16 12:09:51 +00:00 committed by Tim Janik
parent 7dfbacef97
commit 13fe93378e
2 changed files with 54 additions and 26 deletions
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5
gobject/ChangeLog
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@ -1,3 +1,8 @@
Wed Aug 16 13:55:08 2006 Tim Janik <timj@imendio.com>
* gobject.c: conditionally thaw the notify queue after construction,
so we don't trigger warnings when trying to thaw an unfrozen singleton.
2006-08-15 Matthias Clasen <mclasen@redhat.com>
* === Released 2.12.2 ===

75
gobject/gobject.c
View File

@ -116,9 +116,9 @@ static GQuark quark_toggle_refs = 0;
static GParamSpecPool *pspec_pool = NULL;
static GObjectNotifyContext property_notify_context = { 0, };
static gulong gobject_signals[LAST_SIGNAL] = { 0, };
G_LOCK_DEFINE_STATIC (construct_objects_lock);
static GSList *construct_objects = NULL;
static guint (*floating_flag_handler) (GObject*, gint) = object_floating_flag_handler;
G_LOCK_DEFINE_STATIC (construction_mutex);
static GSList *construction_objects = NULL;
/* --- functions --- */
#ifdef G_ENABLE_DEBUG
@ -479,12 +479,11 @@ g_object_init (GObject *object)
/* freeze object's notification queue, g_object_newv() preserves pairedness */
g_object_notify_queue_freeze (object, &property_notify_context);
/* enter construction list for notify_queue_thaw() and to allow construct-only properties */
G_LOCK (construction_mutex);
construction_objects = g_slist_prepend (construction_objects, object);
G_UNLOCK (construction_mutex);
/* allow construct-only properties to be set */
G_LOCK (construct_objects_lock);
construct_objects = g_slist_prepend (construct_objects, object);
G_UNLOCK (construct_objects_lock);
#ifdef G_ENABLE_DEBUG
IF_DEBUG (OBJECTS)
{
@ -797,12 +796,34 @@ g_object_new (GType object_type,
}
static gboolean
object_in_construction (GObject *object)
slist_maybe_remove (GSList **slist,
gconstpointer data)
{
GSList *last = NULL, *node = *slist;
while (node)
{
if (node->data == data)
{
if (last)
last->next = node->next;
else
*slist = node->next;
g_slist_free_1 (node);
return TRUE;
}
last = node;
node = last->next;
}
return FALSE;
}
static inline gboolean
object_in_construction_list (GObject *object)
{
gboolean in_construction;
G_LOCK (construct_objects_lock);
in_construction = g_slist_find (construct_objects, object) != NULL;
G_UNLOCK (construct_objects_lock);
G_LOCK (construction_mutex);
in_construction = g_slist_find (construction_objects, object) != NULL;
G_UNLOCK (construction_mutex);
return in_construction;
}
@ -812,13 +833,14 @@ g_object_newv (GType object_type,
GParameter *parameters)
{
GObjectConstructParam *cparams, *oparams;
GObjectNotifyQueue *nqueue;
GObjectNotifyQueue *nqueue = NULL; /* shouldn't be initialized, just to silence compiler */
GObject *object;
GObjectClass *class, *unref_class = NULL;
GSList *slist;
guint n_total_cparams = 0, n_cparams = 0, n_oparams = 0, n_cvalues;
GValue *cvalues;
GList *clist = NULL;
gboolean newly_constructed;
guint i;
g_return_val_if_fail (G_TYPE_IS_OBJECT (object_type), NULL);
@ -910,31 +932,32 @@ g_object_newv (GType object_type,
/* construct object from construction parameters */
object = class->constructor (object_type, n_total_cparams, cparams);
G_LOCK (construct_objects_lock);
construct_objects = g_slist_remove (construct_objects, object);
G_UNLOCK (construct_objects_lock);
/* free construction values */
g_free (cparams);
while (n_cvalues--)
g_value_unset (cvalues + n_cvalues);
g_free (cvalues);
/* release g_object_init() notification queue freeze_count */
nqueue = g_object_notify_queue_freeze (object, &property_notify_context);
g_object_notify_queue_thaw (object, nqueue);
/* adjust freeze_count according to g_object_init() and remaining properties */
G_LOCK (construction_mutex);
newly_constructed = slist_maybe_remove (&construction_objects, object);
G_UNLOCK (construction_mutex);
if (newly_constructed || n_oparams)
nqueue = g_object_notify_queue_freeze (object, &property_notify_context);
if (newly_constructed)
g_object_notify_queue_thaw (object, nqueue);
/* set remaining properties */
for (i = 0; i < n_oparams; i++)
object_set_property (object, oparams[i].pspec, oparams[i].value, nqueue);
g_free (oparams);
/* release our own freeze count and handle notifications */
if (newly_constructed || n_oparams)
g_object_notify_queue_thaw (object, nqueue);
if (unref_class)
g_type_class_unref (unref_class);
/* release our own freeze count and handle notifications */
g_object_notify_queue_thaw (object, nqueue);
return object;
}
@ -1078,7 +1101,7 @@ g_object_set_valist (GObject *object,
G_OBJECT_TYPE_NAME (object));
break;
}
if ((pspec->flags & G_PARAM_CONSTRUCT_ONLY) && !object_in_construction (object))
if ((pspec->flags & G_PARAM_CONSTRUCT_ONLY) && !object_in_construction_list (object))
{
g_warning ("%s: construct property \"%s\" for object `%s' can't be set after construction",
G_STRFUNC, pspec->name, G_OBJECT_TYPE_NAME (object));
@ -1226,7 +1249,7 @@ g_object_set_property (GObject *object,
G_STRFUNC,
pspec->name,
G_OBJECT_TYPE_NAME (object));
else if ((pspec->flags & G_PARAM_CONSTRUCT_ONLY) && !object_in_construction (object))
else if ((pspec->flags & G_PARAM_CONSTRUCT_ONLY) && !object_in_construction_list (object))
g_warning ("%s: construct property \"%s\" for object `%s' can't be set after construction",
G_STRFUNC, pspec->name, G_OBJECT_TYPE_NAME (object));
else