Function gio_sys::g_resolver_lookup_by_address_async

pub unsafe extern fn g_resolver_lookup_by_address_async(resolver: *mut GResolver,
                                                        address: *mut GInetAddress,
                                                        cancellable: *mut GCancellable,
                                                        callback: GAsyncReadyCallback,
                                                        user_data: gpointer)