Object has acquired a second reference. It has multiple owners now. Triggered whenever increasing the refcount from one to two, it will not trigger by further increasing the refcount beyond two.
on_efl_event_ownership_shared(void *data, const Efl_Event *event)
void info = event->info;
Eo *obj = event->object;
Data *d = data;
/* event hander code */
setup_event_handler(Eo *obj, Data *d)
efl_event_callback_add(obj, EFL_EVENT_OWNERSHIP_SHARED, on_efl_event_ownership_shared, d);