void avahi_dbus_service_type_browser_free(ServiceTypeBrowserInfo *i) { assert(i); if (i->service_type_browser) avahi_s_service_type_browser_free(i->service_type_browser); dbus_connection_unregister_object_path(server->bus, i->path); avahi_free(i->path); AVAHI_LLIST_REMOVE(ServiceTypeBrowserInfo, service_type_browsers, i->client->service_type_browsers, i); i->client->n_objects--; assert(i->client->n_objects >= 0); avahi_free(i); }
static void start_server(AvahiTimeout *t, void *userdata) { int error; assert(t); if (stb) { DEBUG("Service type browser already exists"); avahi_s_service_type_browser_free(stb); stb = NULL; } if (server) { DEBUG("Server already exists"); avahi_server_free(server); server = NULL; } /* Allocate a new server */ server = avahi_server_new(avahi_simple_poll_get(simple_poll), &config, server_callback, NULL, &error); /* Check whether creating the server object succeeded */ if (!server) { ERROR("Failed to create server: %s", avahi_strerror(error)); avahi_simple_poll_quit(simple_poll); return; } /* every UPDATE_INTERVAL seconds, shut down and re-create server. This * has the benefit of causing CSM to send queries to other nodes, prompting * them to re-multicast their services. This is done because mDNS seems to * be very unreliable on mesh, and often nodes don't get service announcements * or can't resolve them. */ struct timeval tv = {0}; avahi_elapse_time(&tv, 1000*UPDATE_INTERVAL, 0); avahi_simple_poll_get(simple_poll)->timeout_update(t, &tv); }
int main(int argc, char*argv[]) { int ret = 1; argp_program_version = "1.0"; static char doc[] = "Commotion Service Manager"; static struct argp_option options[] = { {"bind", 'b', "URI", 0, "commotiond management socket"}, {"nodaemon", 'n', 0, 0, "Do not fork into the background" }, {"out", 'o', "FILE", 0, "Output file to write services to when USR1 signal is received" }, {"pid", 'p', "FILE", 0, "Specify PID file"}, #ifdef USE_UCI {"uci", 'u', 0, 0, "Store service cache in UCI" }, #endif { 0 } }; /* Set defaults */ arguments.co_sock = DEFAULT_CO_SOCK; #ifdef USE_UCI arguments.uci = 0; #endif arguments.nodaemon = 0; arguments.output_file = DEFAULT_FILENAME; arguments.pid_file = PIDFILE; static struct argp argp = { options, parse_opt, NULL, doc }; argp_parse (&argp, argc, argv, 0, 0, &arguments); //fprintf(stdout,"uci: %d, out: %s\n",arguments.uci,arguments.output_file); if (!arguments.nodaemon) daemon_start(arguments.pid_file); CHECK(co_init(),"Failed to initialize Commotion client"); struct sigaction sa = {0}; sa.sa_handler = print_services; CHECK(sigaction(SIGUSR1,&sa,NULL) == 0, "Failed to set signal handler"); sa.sa_handler = shutdown; CHECK(sigaction(SIGINT,&sa,NULL) == 0, "Failed to set signal handler"); CHECK(sigaction(SIGTERM,&sa,NULL) == 0, "Failed to set signal handler"); /* Initialize the psuedo-RNG */ srand(time(NULL)); /* Allocate main loop object */ CHECK((simple_poll = avahi_simple_poll_new()),"Failed to create simple poll object."); /* Do not publish any local records */ avahi_server_config_init(&config); config.publish_hinfo = 0; config.publish_addresses = 0; config.publish_workstation = 0; config.publish_domain = 0; /* Set a unicast DNS server for wide area DNS-SD */ avahi_address_parse("192.168.50.1", AVAHI_PROTO_UNSPEC, &config.wide_area_servers[0]); config.n_wide_area_servers = 1; config.enable_wide_area = 1; // Start timer to create server struct timeval tv = {0}; avahi_elapse_time(&tv, 0, 0); avahi_simple_poll_get(simple_poll)->timeout_new(avahi_simple_poll_get(simple_poll), &tv, start_server, NULL); // create expiration event for service /* Run the main loop */ avahi_simple_poll_loop(simple_poll); ret = 0; error: /* Free the configuration data */ avahi_server_config_free(&config); co_shutdown(); /* Cleanup things */ if (stb) avahi_s_service_type_browser_free(stb); if (server) avahi_server_free(server); if (simple_poll) avahi_simple_poll_free(simple_poll); return ret; }