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;
}
