+#ifndef LOADABLE_H_
+#define LOADABLE_H_
+
+#include <stdio.h>
+#include <glib-object.h>
+
+#define U_OBJECT_TYPE_LOADABLE (u_object_loadable_get_type())
+#define U_OBJECT_LOADABLE(obj) G_TYPE_CHECK_INSTANCE_CAST(obj, \
+ U_OBJECT_TYPE_LOADABLE, UObjectLoadable)
+#define U_OBJECT_IS_LOADABLE(obj) G_TYPE_CHECK_INSTANCE_TYPE(obj, \
+ U_OBJECT_TYPE_LOADABLE)
+#define U_OBJECT_LOADABLE_GET_INTERFACE(inst) G_TYPE_INSTANCE_GET_INTERFACE \
+ (inst, U_OBJECT_TYPE_LOADABLE, UObjectLoadable)
+
+typedef struct UObjectLoadable UObjectLoadable;
+
+struct UObjectLoadable {
+ GTypeInterface parent;
+
+ int (*load)(GObject *obj);
+ void (*unload)(GObject *obj);
+};
+
+GType u_object_loadable_get_type(void);
+
+int u_object_load(GObject *obj);
+void u_object_unload(GObject *obj);
+
+#endif