void yp_recheck_config (ice_config_t *config) { int i; struct yp_server *server; DEBUG0("Updating YP configuration"); thread_rwlock_rlock (&yp_lock); server = (struct yp_server *)active_yps; while (server) { server->remove = 1; server = server->next; } /* for each yp url in config, check to see if one exists if not, then add it. */ for (i=0 ; i < config->num_yp_directories; i++) { server = find_yp_server (config->yp_url[i]); if (server == NULL) { server = calloc (1, sizeof (struct yp_server)); if (server == NULL) { destroy_yp_server (server); break; } server->url = strdup (config->yp_url[i]); server->url_timeout = config->yp_url_timeout[i]; server->touch_interval = config->yp_touch_interval[i]; server->curl = curl_easy_init(); if (server->curl == NULL) { destroy_yp_server (server); break; } if (server->touch_interval < 30) server->touch_interval = 30; curl_easy_setopt (server->curl, CURLOPT_URL, server->url); curl_easy_setopt (server->curl, CURLOPT_HEADERFUNCTION, handle_returned_header); curl_easy_setopt (server->curl, CURLOPT_WRITEFUNCTION, handle_returned_data); curl_easy_setopt (server->curl, CURLOPT_WRITEDATA, server->curl); curl_easy_setopt (server->curl, CURLOPT_TIMEOUT, server->url_timeout); curl_easy_setopt (server->curl, CURLOPT_NOSIGNAL, 1L); curl_easy_setopt (server->curl, CURLOPT_ERRORBUFFER, &(server->curl_error[0])); server->next = (struct yp_server *)pending_yps; pending_yps = server; INFO3 ("Adding new YP server \"%s\" (timeout %ds, default interval %ds)", server->url, server->url_timeout, server->touch_interval); } else { server->remove = 0; } } thread_rwlock_unlock (&yp_lock); yp_update = 1; }
static void *yp_update_thread(void *arg) { if (!kitsune_is_updating()) { /**DSU control */ INFO0("YP update thread started"); yp_running = 1; } while (yp_running) { kitsune_update("yp_update"); /**DSU updatepoint */ struct yp_server *server; thread_sleep (200000); /* do the YP communication */ thread_rwlock_rlock (&yp_lock); server = (struct yp_server *)active_yps; while (server) { /* DEBUG1 ("trying %s", server->url); */ yp_process_server (server); server = server->next; } thread_rwlock_unlock (&yp_lock); /* update the local YP structure */ if (yp_update) { thread_rwlock_wlock (&yp_lock); check_servers (); server = (struct yp_server *)active_yps; while (server) { /* DEBUG1 ("Checking yps %s", server->url); */ add_pending_yp (server); delete_marked_yp (server); server = server->next; } yp_update = 0; thread_rwlock_unlock (&yp_lock); } } thread_rwlock_destroy (&yp_lock); thread_mutex_destroy (&yp_pending_lock); /* free server and ypdata left */ while (active_yps) { struct yp_server *server = (struct yp_server *)active_yps; active_yps = server->next; destroy_yp_server (server); } return NULL; }
/* Check for changes in the YP servers configured */ static void check_servers (void) { struct yp_server *server = (struct yp_server *)active_yps, **server_p = (struct yp_server **)&active_yps; while (server) { if (server->remove) { struct yp_server *to_go = server; DEBUG1 ("YP server \"%s\"removed", server->url); *server_p = server->next; server = server->next; destroy_yp_server (to_go); continue; } server_p = &server->next; server = server->next; } /* add new server entries */ while (pending_yps) { avl_node *node; server = (struct yp_server *)pending_yps; pending_yps = server->next; DEBUG1("Add pending yps %s", server->url); server->next = (struct yp_server *)active_yps; active_yps = server; /* new YP server configured, need to populate with existing sources */ avl_tree_rlock (global.source_tree); node = avl_get_first (global.source_tree); while (node) { ypdata_t *yp; source_t *source = node->key; thread_rwlock_rlock (&source->lock); if (source->yp_public && (yp = create_yp_entry (source->mount)) != NULL) { DEBUG1 ("Adding existing mount %s", source->mount); yp->server = server; yp->touch_interval = server->touch_interval; yp->next = server->mounts; server->mounts = yp; } thread_rwlock_unlock (&source->lock); node = avl_get_next (node); } avl_tree_unlock (global.source_tree); } }
void yp_shutdown (void) { DEBUG0 ("releasing directory details"); if (yp_initialised == 0) return; thread_rwlock_destroy (&yp_lock); thread_mutex_destroy (&yp_pending_lock); /* free server and ypdata left */ while (active_yps) { struct yp_server *server = (struct yp_server *)active_yps; active_yps = server->next; destroy_yp_server (server); } free ((char*)server_version); server_version = NULL; active_yps = NULL; yp_initialised = 0; INFO0 ("YP cleanup complete"); }