if (event == AVAHI_RESOLVER_TIMEOUT)
r->callback(r, r->interface, r->protocol, event, r->service_name, r->service_type, r->domain_name, NULL, NULL, 0, NULL, r->userdata);
if (event == AVAHI_RESOLVER_TIMEOUT)
r->callback(r, r->interface, r->protocol, event, r->service_name, r->service_type, r->domain_name, NULL, NULL, 0, NULL, r->userdata);