Function gio_2_0_sys::g_bus_own_name_on_connection

pub unsafe extern "C" fn g_bus_own_name_on_connection(
    connection: *mut GDBusConnection, 
    name: *const gchar, 
    flags: GBusNameOwnerFlags, 
    name_acquired_handler: Option<GBusNameAcquiredCallback>, 
    name_lost_handler: Option<GBusNameLostCallback>, 
    user_data: gpointer, 
    user_data_free_func: Option<GDestroyNotify>
) -> guint