glib/gio/gmemorysettingsbackend.c
2010-04-13 09:16:09 -04:00

99 lines
3.1 KiB
C

#include "gmemorysettingsbackend.h"
G_DEFINE_TYPE_WITH_CODE (GMemorySettingsBackend,
g_memory_settings_backend,
G_TYPE_SETTINGS_BACKEND,
g_io_extension_point_implement (G_SETTINGS_BACKEND_EXTENSION_POINT_NAME,
g_define_type_id, "memory", 0))
struct _GMemorySettingsBackendPrivate
{
GHashTable *table;
};
static GVariant *
g_memory_settings_backend_read (GSettingsBackend *backend,
const gchar *key,
const GVariantType *expected_type)
{
GVariant *value;
GMemorySettingsBackend *memory = G_MEMORY_SETTINGS_BACKEND (backend);
value = g_hash_table_lookup (memory->priv->table, key);
if (value != NULL)
g_variant_ref (value);
return value;
}
static gboolean
g_memory_settings_backend_write_one (gpointer key,
gpointer value,
gpointer data)
{
GMemorySettingsBackend *memory = ((gpointer *) data)[0];
const gchar *prefix = ((gpointer *) data)[1];
g_hash_table_insert (memory->priv->table,
g_strjoin ("", prefix, key, NULL),
g_variant_ref (value));
return FALSE;
}
static void
g_memory_settings_backend_write (GSettingsBackend *backend,
const gchar *prefix,
GTree *tree,
gpointer origin_tag)
{
gpointer write_info[] = { backend, (gpointer) prefix };
g_tree_foreach (tree, g_memory_settings_backend_write_one, write_info);
g_settings_backend_changed_tree (backend, prefix, tree, origin_tag);
}
static gboolean
g_memory_settings_backend_get_writable (GSettingsBackend *backend,
const gchar *name)
{
return TRUE;
}
static void
g_memory_settings_backend_finalize (GObject *object)
{
GMemorySettingsBackend *memory = G_MEMORY_SETTINGS_BACKEND (object);
g_hash_table_unref (memory->priv->table);
G_OBJECT_CLASS (g_memory_settings_backend_parent_class)
->finalize (object);
}
static void
g_memory_settings_backend_init (GMemorySettingsBackend *memory)
{
memory->priv = G_TYPE_INSTANCE_GET_PRIVATE (memory,
G_TYPE_MEMORY_SETTINGS_BACKEND,
GMemorySettingsBackendPrivate);
memory->priv->table =
g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
(GDestroyNotify) g_variant_unref);
}
static void
g_memory_settings_backend_class_init (GMemorySettingsBackendClass *class)
{
GSettingsBackendClass *backend_class = G_SETTINGS_BACKEND_CLASS (class);
GObjectClass *object_class = G_OBJECT_CLASS (class);
backend_class->read = g_memory_settings_backend_read;
backend_class->write = g_memory_settings_backend_write;
backend_class->get_writable = g_memory_settings_backend_get_writable;
object_class->finalize = g_memory_settings_backend_finalize;
g_type_class_add_private (class, sizeof (GMemorySettingsBackendPrivate));
}