+#if USE_PROMETHEUS
+ m_metrics_backend = std::unique_ptr<MetricsBackend>(createPrometheusMetricsBackend());
+#else
+ m_metrics_backend = std::unique_ptr<MetricsBackend>(new MetricsBackend());
+#endif
+
+ m_uptime_counter = m_metrics_backend->addCounter("minetest_core_server_uptime", "Server uptime (in seconds)");
+ m_player_gauge = m_metrics_backend->addGauge("minetest_core_player_number", "Number of connected players");
+
+ m_timeofday_gauge = m_metrics_backend->addGauge(
+ "minetest_core_timeofday",
+ "Time of day value");
+
+ m_lag_gauge = m_metrics_backend->addGauge(
+ "minetest_core_latency",
+ "Latency value (in seconds)");
+
+ m_aom_buffer_counter = m_metrics_backend->addCounter(
+ "minetest_core_aom_generated_count",
+ "Number of active object messages generated");
+
+ m_packet_recv_counter = m_metrics_backend->addCounter(
+ "minetest_core_server_packet_recv",
+ "Processable packets received");
+
+ m_packet_recv_processed_counter = m_metrics_backend->addCounter(
+ "minetest_core_server_packet_recv_processed",
+ "Valid received packets processed");
+
+ m_lag_gauge->set(g_settings->getFloat("dedicated_server_step"));
+}
+
+Server::~Server()
+{
+
+ // Send shutdown message
+ SendChatMessage(PEER_ID_INEXISTENT, ChatMessage(CHATMESSAGE_TYPE_ANNOUNCE,
+ L"*** Server shutting down"));
+
+ if (m_env) {
+ MutexAutoLock envlock(m_env_mutex);
+
+ infostream << "Server: Saving players" << std::endl;
+ m_env->saveLoadedPlayers();
+
+ infostream << "Server: Kicking players" << std::endl;
+ std::string kick_msg;
+ bool reconnect = false;
+ if (isShutdownRequested()) {
+ reconnect = m_shutdown_state.should_reconnect;
+ kick_msg = m_shutdown_state.message;
+ }
+ if (kick_msg.empty()) {
+ kick_msg = g_settings->get("kick_msg_shutdown");
+ }
+ m_env->saveLoadedPlayers(true);
+ m_env->kickAllPlayers(SERVER_ACCESSDENIED_SHUTDOWN,
+ kick_msg, reconnect);
+ }
+
+ actionstream << "Server: Shutting down" << std::endl;
+
+ // Do this before stopping the server in case mapgen callbacks need to access
+ // server-controlled resources (like ModStorages). Also do them before
+ // shutdown callbacks since they may modify state that is finalized in a
+ // callback.
+ if (m_emerge)
+ m_emerge->stopThreads();
+
+ if (m_env) {
+ MutexAutoLock envlock(m_env_mutex);
+
+ // Execute script shutdown hooks
+ infostream << "Executing shutdown hooks" << std::endl;
+ try {
+ m_script->on_shutdown();
+ } catch (ModError &e) {
+ errorstream << "ModError: " << e.what() << std::endl;
+ if (m_on_shutdown_errmsg) {
+ if (m_on_shutdown_errmsg->empty()) {
+ *m_on_shutdown_errmsg = std::string("ModError: ") + e.what();
+ } else {
+ *m_on_shutdown_errmsg += std::string("\nModError: ") + e.what();
+ }
+ }
+ }
+
+ infostream << "Server: Saving environment metadata" << std::endl;
+ m_env->saveMeta();
+ }
+
+ // Stop threads
+ if (m_thread) {
+ stop();
+ delete m_thread;
+ }
+
+ // Delete things in the reverse order of creation
+ delete m_emerge;
+ delete m_env;
+ delete m_rollback;
+ delete m_banmanager;
+ delete m_itemdef;
+ delete m_nodedef;
+ delete m_craftdef;
+
+ // Deinitialize scripting
+ infostream << "Server: Deinitializing scripting" << std::endl;
+ delete m_script;
+
+ while (!m_unsent_map_edit_queue.empty()) {
+ delete m_unsent_map_edit_queue.front();
+ m_unsent_map_edit_queue.pop();
+ }
+}
+
+void Server::init()
+{
+ infostream << "Server created for gameid \"" << m_gamespec.id << "\"";
+ if (m_simple_singleplayer_mode)
+ infostream << " in simple singleplayer mode" << std::endl;