* 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., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
struct _GDelayedSettingsBackendPrivate
{
GSettingsBackend *backend;
- GStaticMutex lock;
+ GMutex lock;
GTree *delayed;
GMainContext *owner_context;
gpointer owner;
};
-G_DEFINE_TYPE (GDelayedSettingsBackend,
- g_delayed_settings_backend,
- G_TYPE_SETTINGS_BACKEND)
+G_DEFINE_TYPE_WITH_PRIVATE (GDelayedSettingsBackend,
+ g_delayed_settings_backend,
+ G_TYPE_SETTINGS_BACKEND)
static gboolean
invoke_notify_unapplied (gpointer data)
GMainContext *target_context;
GObject *target;
- g_static_mutex_lock (&delayed->priv->lock);
+ g_mutex_lock (&delayed->priv->lock);
if (delayed->priv->owner)
{
target_context = delayed->priv->owner_context;
target_context = NULL;
target = NULL;
}
- g_static_mutex_unlock (&delayed->priv->lock);
+ g_mutex_unlock (&delayed->priv->lock);
if (target != NULL)
- {
- if (g_settings_backend_get_active_context () != target_context)
- {
- GSource *source;
-
- source = g_idle_source_new ();
- g_source_set_priority (source, G_PRIORITY_DEFAULT);
- g_source_set_callback (source, invoke_notify_unapplied,
- target, g_object_unref);
- g_source_attach (source, target_context);
- g_source_unref (source);
- }
- else
- invoke_notify_unapplied (target);
- }
+ g_main_context_invoke (target_context, invoke_notify_unapplied, target);
}
if (!default_value)
{
- g_static_mutex_lock (&delayed->priv->lock);
+ g_mutex_lock (&delayed->priv->lock);
if (g_tree_lookup_extended (delayed->priv->delayed, key, NULL, &result))
{
/* NULL in the tree means we should consult the default value */
else
default_value = TRUE;
}
- g_static_mutex_unlock (&delayed->priv->lock);
+ g_mutex_unlock (&delayed->priv->lock);
}
if (result == NULL)
return result;
}
+static GVariant *
+g_delayed_settings_backend_read_user_value (GSettingsBackend *backend,
+ const gchar *key,
+ const GVariantType *expected_type)
+{
+ GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (backend);
+ gboolean value_found = FALSE;
+ gpointer result = NULL;
+
+ /* If we find an explicit NULL in our changeset then we want to return
+ * NULL (because the user value has been reset).
+ *
+ * Otherwise, chain up.
+ */
+ g_mutex_lock (&delayed->priv->lock);
+ value_found = g_tree_lookup_extended (delayed->priv->delayed, key, NULL, &result);
+ if (result)
+ g_variant_ref (result);
+ g_mutex_unlock (&delayed->priv->lock);
+
+ if (value_found)
+ return result;
+
+ return g_settings_backend_read_user_value (delayed->priv->backend, key, expected_type);
+}
+
static gboolean
g_delayed_settings_backend_write (GSettingsBackend *backend,
const gchar *key,
GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (backend);
gboolean was_empty;
- g_static_mutex_lock (&delayed->priv->lock);
+ g_mutex_lock (&delayed->priv->lock);
was_empty = g_tree_nnodes (delayed->priv->delayed) == 0;
g_tree_insert (delayed->priv->delayed, g_strdup (key),
g_variant_ref_sink (value));
- g_static_mutex_unlock (&delayed->priv->lock);
+ g_mutex_unlock (&delayed->priv->lock);
g_settings_backend_changed (backend, key, origin_tag);
}
static gboolean
-g_delayed_settings_backend_write_keys (GSettingsBackend *backend,
+g_delayed_settings_backend_write_tree (GSettingsBackend *backend,
GTree *tree,
gpointer origin_tag)
{
GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (backend);
gboolean was_empty;
- g_static_mutex_lock (&delayed->priv->lock);
+ g_mutex_lock (&delayed->priv->lock);
was_empty = g_tree_nnodes (delayed->priv->delayed) == 0;
g_tree_foreach (tree, add_to_tree, delayed->priv->delayed);
- g_static_mutex_unlock (&delayed->priv->lock);
+ g_mutex_unlock (&delayed->priv->lock);
g_settings_backend_changed_tree (backend, tree, origin_tag);
GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (backend);
gboolean was_empty;
- g_static_mutex_lock (&delayed->priv->lock);
+ g_mutex_lock (&delayed->priv->lock);
was_empty = g_tree_nnodes (delayed->priv->delayed) == 0;
g_tree_insert (delayed->priv->delayed, g_strdup (key), NULL);
- g_static_mutex_unlock (&delayed->priv->lock);
+ g_mutex_unlock (&delayed->priv->lock);
if (was_empty)
g_delayed_settings_backend_notify_unapplied (delayed);
}
static void
-g_delayed_settings_backend_reset_path (GSettingsBackend *backend,
- const gchar *path,
- gpointer origin_tag)
-{
- /* deal with this... */
-}
-
-static void
g_delayed_settings_backend_subscribe (GSettingsBackend *backend,
const char *name)
{
gboolean success;
GTree *tmp;
- g_static_mutex_lock (&delayed->priv->lock);
+ g_mutex_lock (&delayed->priv->lock);
tmp = delayed->priv->delayed;
delayed->priv->delayed = g_settings_backend_create_tree ();
- success = g_settings_backend_write_keys (delayed->priv->backend,
+ success = g_settings_backend_write_tree (delayed->priv->backend,
tmp, delayed->priv);
- g_static_mutex_unlock (&delayed->priv->lock);
+ g_mutex_unlock (&delayed->priv->lock);
if (!success)
g_settings_backend_changed_tree (G_SETTINGS_BACKEND (delayed),
{
GTree *tmp;
- g_static_mutex_lock (&delayed->priv->lock);
+ g_mutex_lock (&delayed->priv->lock);
tmp = delayed->priv->delayed;
delayed->priv->delayed = g_settings_backend_create_tree ();
- g_static_mutex_unlock (&delayed->priv->lock);
+ g_mutex_unlock (&delayed->priv->lock);
g_settings_backend_changed_tree (G_SETTINGS_BACKEND (delayed), tmp, NULL);
g_tree_unref (tmp);
/* change notification */
static void
-delayed_backend_changed (GSettingsBackend *backend,
- GObject *target,
+delayed_backend_changed (GObject *target,
+ GSettingsBackend *backend,
const gchar *key,
gpointer origin_tag)
{
}
static void
-delayed_backend_keys_changed (GSettingsBackend *backend,
- GObject *target,
+delayed_backend_keys_changed (GObject *target,
+ GSettingsBackend *backend,
const gchar *path,
- const gchar * const *items,
- gpointer origin_tag)
+ gpointer origin_tag,
+ const gchar * const *items)
{
GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (target);
}
static void
-delayed_backend_path_changed (GSettingsBackend *backend,
- GObject *target,
+delayed_backend_path_changed (GObject *target,
+ GSettingsBackend *backend,
const gchar *path,
gpointer origin_tag)
{
}
static void
-delayed_backend_writable_changed (GSettingsBackend *backend,
- GObject *target,
+delayed_backend_writable_changed (GObject *target,
+ GSettingsBackend *backend,
const gchar *key)
{
GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (target);
gboolean last_one = FALSE;
- g_static_mutex_lock (&delayed->priv->lock);
+ g_mutex_lock (&delayed->priv->lock);
- if (g_tree_lookup (delayed->priv->delayed, key) &&
+ if (g_tree_lookup (delayed->priv->delayed, key) != NULL &&
!g_settings_backend_get_writable (delayed->priv->backend, key))
{
/* drop the key from our changeset if it just became read-only.
* no need to signal since the writable change below implies it.
+ *
+ * note that the item in the tree may very well be set to NULL in
+ * the case that the user stored a reset. we intentionally don't
+ * drop the key in this case since a reset will always succeed
+ * (even against a non-writable key).
*/
g_tree_remove (delayed->priv->delayed, key);
last_one = g_tree_nnodes (delayed->priv->delayed) == 0;
}
- g_static_mutex_unlock (&delayed->priv->lock);
+ g_mutex_unlock (&delayed->priv->lock);
if (last_one)
g_delayed_settings_backend_notify_unapplied (delayed);
}
static void
-delayed_backend_path_writable_changed (GSettingsBackend *backend,
- GObject *target,
+delayed_backend_path_writable_changed (GObject *target,
+ GSettingsBackend *backend,
const gchar *path)
{
GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (target);
gboolean last_one = FALSE;
gsize n_keys;
- g_static_mutex_lock (&delayed->priv->lock);
+ g_mutex_lock (&delayed->priv->lock);
n_keys = g_tree_nnodes (delayed->priv->delayed);
/* collect a list of possibly-affected keys (ie: matching the path) */
g_tree_foreach (delayed->priv->delayed, check_prefix, &state);
- /* drop the keys that have been affected */
+ /* drop the keys that have been affected.
+ *
+ * don't drop 'reset' keys (see above) */
for (i = 0; i < state.index; i++)
- if (!g_settings_backend_get_writable (delayed->priv->backend,
+ if (g_tree_lookup (delayed->priv->delayed, state.keys[i]) != NULL &&
+ !g_settings_backend_get_writable (delayed->priv->backend,
state.keys[i]))
g_tree_remove (delayed->priv->delayed, state.keys[i]);
last_one = g_tree_nnodes (delayed->priv->delayed) == 0;
}
- g_static_mutex_unlock (&delayed->priv->lock);
+ g_mutex_unlock (&delayed->priv->lock);
if (last_one)
g_delayed_settings_backend_notify_unapplied (delayed);
{
GDelayedSettingsBackend *delayed = G_DELAYED_SETTINGS_BACKEND (object);
- g_static_mutex_free (&delayed->priv->lock);
+ g_mutex_clear (&delayed->priv->lock);
g_object_unref (delayed->priv->backend);
g_tree_unref (delayed->priv->delayed);
GSettingsBackendClass *backend_class = G_SETTINGS_BACKEND_CLASS (class);
GObjectClass *object_class = G_OBJECT_CLASS (class);
- g_type_class_add_private (class, sizeof (GDelayedSettingsBackendPrivate));
-
backend_class->read = g_delayed_settings_backend_read;
+ backend_class->read_user_value = g_delayed_settings_backend_read_user_value;
backend_class->write = g_delayed_settings_backend_write;
- backend_class->write_keys = g_delayed_settings_backend_write_keys;
+ backend_class->write_tree = g_delayed_settings_backend_write_tree;
backend_class->reset = g_delayed_settings_backend_reset;
- backend_class->reset_path = g_delayed_settings_backend_reset_path;
backend_class->get_writable = g_delayed_settings_backend_get_writable;
backend_class->subscribe = g_delayed_settings_backend_subscribe;
backend_class->unsubscribe = g_delayed_settings_backend_unsubscribe;
static void
g_delayed_settings_backend_init (GDelayedSettingsBackend *delayed)
{
- delayed->priv =
- G_TYPE_INSTANCE_GET_PRIVATE (delayed, G_TYPE_DELAYED_SETTINGS_BACKEND,
- GDelayedSettingsBackendPrivate);
-
+ delayed->priv = g_delayed_settings_backend_get_instance_private (delayed);
delayed->priv->delayed = g_settings_backend_create_tree ();
- g_static_mutex_init (&delayed->priv->lock);
+ g_mutex_init (&delayed->priv->lock);
}
static void
{
GDelayedSettingsBackend *delayed = data;
- g_static_mutex_lock (&delayed->priv->lock);
+ g_mutex_lock (&delayed->priv->lock);
delayed->priv->owner_context = NULL;
delayed->priv->owner = NULL;
- g_static_mutex_unlock (&delayed->priv->lock);
+ g_mutex_unlock (&delayed->priv->lock);
}
GDelayedSettingsBackend *
gpointer owner,
GMainContext *owner_context)
{
+ static GSettingsListenerVTable vtable = {
+ delayed_backend_changed,
+ delayed_backend_path_changed,
+ delayed_backend_keys_changed,
+ delayed_backend_writable_changed,
+ delayed_backend_path_writable_changed
+ };
GDelayedSettingsBackend *delayed;
delayed = g_object_new (G_TYPE_DELAYED_SETTINGS_BACKEND, NULL);
g_object_weak_ref (owner, g_delayed_settings_backend_disown, delayed);
- g_settings_backend_watch (delayed->priv->backend, G_OBJECT (delayed), NULL,
- delayed_backend_changed,
- delayed_backend_path_changed,
- delayed_backend_keys_changed,
- delayed_backend_writable_changed,
- delayed_backend_path_writable_changed);
+ g_settings_backend_watch (delayed->priv->backend,
+ &vtable, G_OBJECT (delayed), NULL);
return delayed;
}
projects / platform / upstream / glib.git / blobdiff