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GSettingSchemaSource: add refcounting

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This commit is contained in:
Ryan Lortie 2011-11-15 07:31:20 +00:00
parent e01a43b621
commit bf5626ddc2
1 changed files with 27 additions and 0 deletions
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27
gio/gsettingsschema.c
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@ -46,6 +46,8 @@ struct _GSettingsSchemaSource
{ {
GSettingsSchemaSource *parent; GSettingsSchemaSource *parent;
GvdbTable *table; GvdbTable *table;
gint ref_count;
}; };
static GSettingsSchemaSource *schema_sources; static GSettingsSchemaSource *schema_sources;
@ -55,13 +57,38 @@ prepend_schema_table (GvdbTable *table)
{ {
GSettingsSchemaSource *source; GSettingsSchemaSource *source;
/* we steal the reference from 'schema_sources' for our ->parent */
source = g_slice_new (GSettingsSchemaSource); source = g_slice_new (GSettingsSchemaSource);
source->parent = schema_sources; source->parent = schema_sources;
source->table = table; source->table = table;
source->ref_count = 1;
schema_sources = source; schema_sources = source;
} }
GSettingsSchemaSource *
g_settings_schema_source_ref (GSettingsSchemaSource *source)
{
g_atomic_int_inc (&source->ref_count);
return source;
}
void
g_settings_schema_source_unref (GSettingsSchemaSource *source)
{
if (g_atomic_int_dec_and_test (&source->ref_count))
{
if (source == schema_sources)
g_error ("g_settings_schema_source_unref() called too many times on the default schema source");
g_settings_schema_source_unref (source->parent);
gvdb_table_unref (source->table);
g_slice_free (GSettingsSchemaSource, source);
}
}
static void static void
initialise_schema_sources (void) initialise_schema_sources (void)
{ {