poll_api->timeout_new(poll_api, avahi_elapse_time(&tv, 1000*10, 0), modify_txt_callback, server);
avahi_simple_poll_loop(simple_poll);
poll_api->timeout_new(poll_api, avahi_elapse_time(&tv, 1000*10, 0), modify_txt_callback, server);
avahi_simple_poll_loop(simple_poll);