possible fixes for the blocking heartbeat problem
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f8eb00e04e
commit
cb011c903b
6 changed files with 32 additions and 45 deletions
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@ -4,8 +4,7 @@ const Message = require('./Message');
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class Audiostream {
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constructor(eventParser) {
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this.eventParser = eventParser;
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constructor() {
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this.#handleEvents();
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}
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@ -33,23 +32,23 @@ class Audiostream {
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}
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#handleEvents() {
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this.eventParser.on('audio:initialize', (data) => {
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eventparser.on('audio:initialize', (data) => {
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logger.debug('handling event \'audio:initialize\'...');
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this.#initialize(data);
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});
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this.eventParser.on(constants.AUDIO_PLAY, () => {
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eventparser.on(constants.AUDIO_PLAY, () => {
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logger.debug('handling event \'' + constants.AUDIO_PLAY + '\'...');
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global.player.play();
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});
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this.eventParser.on(constants.AUDIO_RESUME, () => {
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eventparser.on(constants.AUDIO_RESUME, () => {
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logger.debug('handling event \'' + constants.AUDIO_RESUME + '\'...');
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global.player.resume();
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});
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this.eventParser.on(constants.AUDIO_PAUSE, () => {
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eventparser.on(constants.AUDIO_PAUSE, () => {
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logger.debug('handling event \'' + constants.AUDIO_PAUSE + '\'...');
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global.player.pause();
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});
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this.eventParser.on(constants.AUDIO_STOP, () => {
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eventparser.on(constants.AUDIO_STOP, () => {
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logger.debug('handling event \'' + constants.AUDIO_STOP + '\'...');
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global.player.stop();
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});
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@ -71,9 +70,6 @@ class Audiostream {
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socket.on('error', (error) => {
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logger.error('error connecting to audio server \'' + this.getTag() + '\': ' + error);
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});
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socket.on('close', () => {
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logger.info('connection to audio server \'' + this.getTag() + '\' closed');
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});
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}
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destroy() {
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@ -2,7 +2,6 @@ const util = require('../libs/util.js');
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const net = require('net');
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const Heartbeat = require('./Heartbeat.js');
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const EventParser = require('./EventParser.js');
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const Audiostream = require('./Audiostream.js');
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class Connection {
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@ -16,8 +15,7 @@ class Connection {
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}
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this.host = config?.server?.host || "127.0.0.1";
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this.port = config?.server?.port || "3000";
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this.eventParser = new EventParser();
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this.audiostream = new Audiostream(this.eventParser);
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this.audiostream = new Audiostream();
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}
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getHost() {
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@ -53,7 +51,7 @@ class Connection {
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#handleEventConnect(resolve, socket) {
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logger.info('connected to communication server \'' + this.getTag() + '\'...');
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this.socket = socket;
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this.heartbeat = new Heartbeat(this.eventParser);
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this.heartbeat = new Heartbeat();
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this.#handleHeartbeat();
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socket.on('timeout', () => {
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this.#handleEventTimeout();
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@ -67,7 +65,7 @@ class Connection {
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}
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async #handleEventData(data) {
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this.eventParser.parse(data);
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eventparser.parse(data);
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}
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#handleEventTimeout() {
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@ -93,16 +91,12 @@ class Connection {
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destroy() {
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if (this.heartbeat !== undefined) {
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this.heartbeat.removeAllListeners();
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this.heartbeat.destroy();
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this.heartbeat.removeAllListeners('timeout');
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this.heartbeat = undefined;
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}
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if (this.socket !== undefined) {
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this.socket.removeAllListeners('connect');
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this.socket.removeAllListeners('error');
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this.socket.removeAllListeners('timeout');
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this.socket.removeAllListeners('close');
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this.socket.removeAllListeners('data');
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this.socket.removeAllListeners();
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this.socket.end();
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this.socket.destroy();
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this.socket = undefined;
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@ -1,52 +1,47 @@
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const { sleep } = require('../libs/util.js');
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const EventEmitter = require('events');
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const Message = require('./Message.js');
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class Heartbeat extends EventEmitter {
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constructor(eventParser) {
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constructor() {
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super();
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this.interval = config?.server?.heartbeat || 10000;
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this.eventParser = eventParser;
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this.#listenForPingPong();
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this.#sendPing();
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}
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async #sendPing() {
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if (this.timeout !== undefined) {
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clearTimeout(this.timeout);
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if (this.destroyed === true) {
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return;
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}
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if (this.alive === false) {
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this.emit('timeout');
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return;
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} else if (this.alive === undefined) {
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await new Promise((resolve, reject) => {
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setTimeout(resolve, this.interval);
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})
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}
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if (this.alive === undefined) {
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await sleep(this.interval);
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}
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this.alive = false;
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await new Message('ping').send();
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this.timeout = setTimeout(() => {
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await sleep(this.interval);
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this.#sendPing();
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}, this.interval);
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}
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async #listenForPingPong() {
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this.eventParser.on('ping', () => {
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eventparser.on('ping', () => {
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logger.debug('handling event \'ping\', responding with \'pong\'...');
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new Message('pong').send();
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});
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this.eventParser.on('pong', () => {
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eventparser.on('pong', () => {
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logger.debug('handling event \'pong\'...');
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this.alive = true;
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});
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}
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destroy() {
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if (this.timeout !== undefined) {
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clearTimeout(this.timeout);
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}
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this.eventParser.removeAllListeners('ping');
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this.eventParser.removeAllListeners('pong');
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this.destroyed = true;
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eventparser.removeAllListeners('ping');
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eventparser.removeAllListeners('pong');
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}
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}
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@ -25,7 +25,7 @@ class Message {
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return;
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}
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const data = this.toString();
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logger.debug('sending data to \'' + socket.remoteAddress + ':' + socket.remotePort + '\': ' + data);
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// logger.debug('sending data to \'' + socket.remoteAddress + ':' + socket.remotePort + '\': ' + data);
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await new Promise((resolve, reject) => {
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socket.write(data + constants.EVENT_DELIMITER, resolve);
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});
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@ -1,9 +1,10 @@
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const packageJSON = require('./package.json');
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const path = require('path');
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const Connection = require('./classes/Connection.js');
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const Logger = require('./classes/Logger.js');
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const EventParser = require('./classes/EventParser.js');
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const Player = require('./classes/Player.js');
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const Connection = require('./classes/Connection.js');
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const INTERRUPTS = ['beforeExit', 'SIGINT', 'SIGTERM'];
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@ -23,6 +24,7 @@ async function main() {
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handleExit();
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global.constants = require('./libs/constants.js');
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global.logger.info("launching " + packageJSON.name + " " + packageJSON.version + "...");
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global.eventparser = new EventParser();
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global.player = new Player();
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global.connection = new Connection();
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while (true) {
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