fixed and optimized a lot of stuff
This commit is contained in:
parent
00041f86d6
commit
232f8c6a75
4 changed files with 144 additions and 210 deletions
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@ -6,7 +6,7 @@ const stat = require('fs/promises').stat;
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const Message = require('./Message.js');
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const Message = require('./Message.js');
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const { CLIENT_STATE_READY, CLIENT_STATE_PLAYING, CLIENT_STATE_PAUSED, CLIENT_STATE_STOPPED, CLIENT_STATE_ERROR } = require('../libs/constants.js');
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const { CLIENT_STATE_REGISTERED, CLIENT_STATE_READY, CLIENT_STATE_PLAYING, CLIENT_STATE_PAUSED, CLIENT_STATE_STOPPED, CLIENT_STATE_ERROR } = require('../libs/constants.js');
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class AudioServer {
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class AudioServer {
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@ -20,9 +20,8 @@ class AudioServer {
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};
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};
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this.clients = [];
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this.clients = [];
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this.sockets = [];
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this.sockets = [];
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this.playback = {
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this.broadcasts = {};
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position: undefined
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this.position = 0;
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};
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this.server = net.createServer();
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this.server = net.createServer();
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this.#prepare();
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this.#prepare();
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}
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}
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@ -55,75 +54,97 @@ class AudioServer {
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#handleEvents() {
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#handleEvents() {
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eventparser.on('audio:register', (data) => {
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eventparser.on('audio:register', (data) => {
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if (data?.clientId === undefined || data?.socket === undefined) {
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this.#handleRegister(server.getClientById(data?.clientId), data?.port);
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return;
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}
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let client = server.getClientById(data.clientId);
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if (client === undefined) {
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return;
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}
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let socket;
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for (let index = 0; index < this.sockets.length; index++) {
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if (this.sockets[index].remotePort === data.socket) {
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socket = this.sockets[index];
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this.sockets.splice(index, 1);
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break;
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}
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}
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if (socket === undefined) {
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return;
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}
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client.audiosocket = socket;
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this.clients.push(client);
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logger.debug(client.getTag() + ' connected to audio server...');
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// this.#sendData(client, data);
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// TEST ONLY
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const timestamp = Date.now();
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const stream = fs.createReadStream(this.buffer.file);
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stream.on('data', (data) => {
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const backpressure = false;
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for (let index = 0; index < this.clients.length; index++) {
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if (!this.clients[index].audiosocket.write(data)) {
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backpressure = true;
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}
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}
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if (backpressure === true) {
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logger.debug('BACKPRESSURE DETECTED - PAUSING STREAM!');
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stream.pause();
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}
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});
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stream.on('drain', () => {
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logger.debug('STREAM IS DRAINED - RESUMING!');
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stream.resume();
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});
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stream.on('close', () => {
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for (let index = 0; index < this.clients.length; index++) {
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this.clients[index].audiosocket.end();
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}
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logger.debug('buffering file \'' + this.buffer.file + '\' took ' + (Date.now() - timestamp) + 'ms (size: ' + stream.bytesRead + ' bytes)');
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});
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stream.on('error', (error) => {
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logger.error('')
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});
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});
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});
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eventparser.on('audio:state', (data) => {
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eventparser.on('audio:state', (data) => {
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this.#handleStateChange(data);
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this.#setClientState(this.#getClientById(data?.clientId), data?.state, data);
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});
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});
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}
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}
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#handleStateChange(data) {
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#handleRegister(client, port) {
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if (data?.clientId === undefined || data?.state === undefined) {
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if (client === undefined || port === undefined) {
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return;
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return;
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}
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}
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let client = this.#getClientById(data.clientId);
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let socket;
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for (let index = 0; index < this.sockets.length; index++) {
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if (this.sockets[index].remotePort === port) {
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socket = this.sockets[index];
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this.sockets.splice(index, 1);
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break;
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}
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}
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if (socket === undefined) {
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return;
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}
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client.audiosocket = socket;
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this.clients.push(client);
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this.#setClientState(client, CLIENT_STATE_REGISTERED);
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client.audiosocket.on('connect', () => {
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logger.debug(client.getTag() + ' opened audio socket');
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});
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client.audiosocket.on('error', (error) => {
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logger.error(client.getTag() + ' encountered an error: ' + error);
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});
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client.audiosocket.on('end', () => {
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logger.debug(client.getTag() + ' ended audio socket');
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});
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client.audiosocket.on('close', (hadError) => {
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let msg = client.getTag() + ' closed audio socket';
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if (hadError === true) {
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msg += ' after an error';
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}
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logger.debug(msg);
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});
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client.audiosocket.on('drain', () => {
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if (this.buffer.stream === undefined || !this.buffer.stream.isPaused()) {
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return;
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}
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logger.debug(client.getTag() + ' backpressure is relieved, resuming read stream...');
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this.buffer.stream.resume();
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});
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}
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#setClientState(client, state, data) {
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if (client === undefined || state === undefined) {
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return;
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}
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logger.debug(client.getTag() + ' state changed to \'' + state + '\'');
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client.state = state;
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this.#handleStateChange(client, data);
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}
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#allClientsInState(state) {
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if (this.clients === undefined || this.clients.length === 0 || state === undefined) {
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return false;
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}
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const broadcasts = this.broadcasts[state];
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let result = true;
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for (let index = 0; index < this.clients.length; index++) {
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const client = this.clients[index];
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if (client.state !== state) {
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result = false;
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}
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if (broadcasts === undefined) {
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continue;
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}
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const indexOfId = this.broadcasts[state].indexOf(client.id);
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if (indexOfId >= 0) {
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this.broadcasts[state].splice(indexOfId, 1);
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}
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}
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if (broadcasts !== undefined) {
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result = result && this.broadcasts[state].length === 0;
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}
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return result;
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}
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#handleStateChange(client, data) {
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if (client === undefined) {
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if (client === undefined) {
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return;
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return;
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}
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}
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logger.debug(client.getTag() + ' state changed to \'' + data.state + '\'');
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client.state = data.state;
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switch (client.state) {
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switch (client.state) {
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case CLIENT_STATE_REGISTERED:
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return this.#handleStateRegistered(client);
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case CLIENT_STATE_READY:
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case CLIENT_STATE_READY:
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return this.#handleStateReady(client);
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return this.#handleStateReady(client);
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case CLIENT_STATE_PLAYING:
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case CLIENT_STATE_PLAYING:
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@ -137,12 +158,18 @@ class AudioServer {
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}
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}
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}
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}
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async #handleStateRegistered(client) {
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logger.debug(client.getTag() + ' has registered...');
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if (!this.#allClientsInState(CLIENT_STATE_REGISTERED)) {
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return;
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}
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this.#transmitFile();
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}
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async #handleStateReady(client) {
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async #handleStateReady(client) {
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logger.debug(client.getTag() + ' is ready for playback...');
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logger.debug(client.getTag() + ' is ready for playback...');
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for (let index = 0; index < this.clients.length; index++) {
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if (!this.#allClientsInState(CLIENT_STATE_READY)) {
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if (this.clients[index].state !== CLIENT_STATE_READY) {
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return;
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return;
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}
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}
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}
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this.#startPlayback();
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this.#startPlayback();
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}
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}
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@ -159,13 +186,6 @@ class AudioServer {
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return;
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return;
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}
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}
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logger.debug(client.getTag() + ' paused playback at position \'' + data.position + '\'...');
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logger.debug(client.getTag() + ' paused playback at position \'' + data.position + '\'...');
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for (let index = 0; index < this.playback.paused.length; index++) {
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if (this.playback.paused[index] === client.id) {
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if (this.playback.position === 0 || this.playback.position > data.position) {
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this.playback.position = data.position;
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}
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}
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}
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// TODO: remove - test only
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// TODO: remove - test only
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await sleep(1);
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await sleep(1);
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this.#startPlayback();
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this.#startPlayback();
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@ -179,118 +199,6 @@ class AudioServer {
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logger.error(client.getTag() + ' experienced an error during playback at position \'' + data.position + '\': ' + data.error);
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logger.error(client.getTag() + ' experienced an error during playback at position \'' + data.position + '\': ' + data.error);
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}
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}
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async #sendData(client) {
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const timestamp = Date.now();
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// const buffer = await this.#bufferFile();
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return new Promise(async (resolve, reject) => {
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this.buffer.stream.on('data', (data) => {
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this.buffer.buffered += data.length;
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buffer.push(data);
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if (resolved !== true && this.buffer.stream.bytesRead >= this.buffer.threshold) {
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resolved = true;
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logger.debug('buffering threshold of ' + this.buffer.threshold + ' bytes for file \'' + this.buffer.file + '\' took ' + (Date.now() - timestamp) + 'ms');
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resolve(buffer);
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}
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if (this.buffer.buffered >= this.buffer.limit) {
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logger.debug('pausing read stream');
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this.buffer.stream.pause();
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if (resolved !== true) {
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resolved = true;
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resolve(buffer);
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}
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}
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});
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this.buffer.stream.on('close', () => {
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// this.buffer.data = Buffer.concat(buffer);
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logger.debug('buffering file \'' + this.buffer.file + '\' took ' + (Date.now() - timestamp) + 'ms (size: ' + this.buffer.stream.bytesRead + ' bytes)');
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// resolve();
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});
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this.buffer.stream.on('error', (error) => {
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// TODO: handle with try/catch
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reject(error);
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});
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// this.buffer.written = 0;
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// while (true) {
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// if (buffer[0] === undefined) {
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// await sleep(1);
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// continue;
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// }
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// const tmp = buffer[0];
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// buffer.shift();
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// if ((client.audiosocket.bytesWritten + tmp.length) >= this.buffer.size) {
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// logger.debug(client.getTag() + ' sent audio file \'' + this.buffer.file + '\' after ' + (Date.now() - timestamp) + 'ms...');
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// client.audiosocket.end(tmp);
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// break;
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// }
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// client.audiosocket.write(tmp);
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// this.buffer.buffered -= tmp.length;
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// if (this.buffer.stream.isPaused() && this.buffer.buffered < this.buffer.limit) {
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// this.buffer.stream.resume();
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// logger.debug('resuming read stream');
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// }
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// }
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client.audiosocket.on('error', (error) => {
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logger.error(client.getTag() + ' encountered an error: ' + error);
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});
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client.audiosocket.on('end', () => {
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logger.debug(client.getTag() + ' ended audio socket');
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});
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client.audiosocket.on('close', (hadError) => {
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let fn = resolve;
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let msg = client.getTag() + ' closed audio socket';
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if (hadError === true) {
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msg += ' after an error';
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fn = reject;
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}
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logger.debug(msg);
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fn(msg);
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});
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});
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}
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// async #waitForBuffer() {
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// while (this.buffer.data === undefined || this.buffer.data.length < this.buffer.size) {
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// await sleep(1);
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// }
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// return this.buffer.data;
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// }
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// async #bufferFile() {
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// // const stream = fs.createReadStream(this.buffer.file);
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// return new Promise((resolve, reject) => {
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// const timestamp = Date.now();
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// const buffer = [];
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// let resolved = false;
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// this.buffer.buffered = 0;
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// this.buffer.stream.on('data', (data) => {
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// this.buffer.buffered += data.length;
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// buffer.push(data);
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// if (resolved !== true && this.buffer.stream.bytesRead >= this.buffer.threshold) {
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// resolved = true;
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// logger.debug('buffering threshold of ' + this.buffer.threshold + ' bytes for file \'' + this.buffer.file + '\' took ' + (Date.now() - timestamp) + 'ms');
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// resolve(buffer);
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// }
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// if (this.buffer.buffered >= this.buffer.limit) {
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// logger.debug('pausing read stream');
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// this.buffer.stream.pause();
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// if (resolved !== true) {
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// resolved = true;
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// resolve(buffer);
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// }
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// }
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// });
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// this.buffer.stream.on('close', () => {
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// // this.buffer.data = Buffer.concat(buffer);
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// logger.debug('buffering file \'' + this.buffer.file + '\' took ' + (Date.now() - timestamp) + 'ms (size: ' + this.buffer.stream.bytesRead + ' bytes)');
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// // resolve();
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// });
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// this.buffer.stream.on('error', (error) => {
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// // TODO: handle with try/catch
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// reject(error);
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// });
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// });
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// }
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#getClientById(clientId) {
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#getClientById(clientId) {
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if (clientId === undefined) {
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if (clientId === undefined) {
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return;
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return;
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@ -305,30 +213,54 @@ class AudioServer {
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}
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}
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async #announceAudioServer() {
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async #announceAudioServer() {
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const broadcasted = await new Message('audio:initialize', {
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this.broadcasts[CLIENT_STATE_REGISTERED] = await new Message('audio:initialize', {
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port: this.server.address().port,
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port: this.server.address().port,
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size: this.buffer.size,
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size: this.buffer.size,
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threshold: this.buffer.threshold
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threshold: this.buffer.threshold
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}).broadcast(true);
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}).broadcast(true);
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logger.debug('sent broadcast for audio server to client(s) \'' + broadcasted + '\'...');
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logger.debug('sent broadcast for audio server to client(s) \'' + this.broadcasts[CLIENT_STATE_REGISTERED] + '\'...');
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}
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}
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async #startPlayback() {
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async #startPlayback() {
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const broadcasted = await new Message('audio:play', { position: this.playback.position }).broadcast();
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this.broadcasts[CLIENT_STATE_PLAYING] = await new Message('audio:play', { position: this.position }).broadcast();
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logger.debug('sent broadcast to start playback to client(s) \'' + broadcasted + '\'...');
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logger.debug('sent broadcast to start playback to client(s) \'' + this.broadcasts[CLIENT_STATE_PLAYING] + '\'...');
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this.playback.started = broadcasted;
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}
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}
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async #stopPlayback() {
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async #stopPlayback() {
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const broadcasted = await new Message('audio:stop').broadcast();
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this.broadcasts[CLIENT_STATE_STOPPED] = await new Message('audio:stop').broadcast();
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logger.debug('sent broadcast to stop playback to client(s) \'' + broadcasted + '\'...');
|
logger.debug('sent broadcast to stop playback to client(s) \'' + this.broadcasts[CLIENT_STATE_STOPPED] + '\'...');
|
||||||
this.playback.stopped = broadcasted;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
async #pausePlayback() {
|
async #pausePlayback() {
|
||||||
const broadcasted = await new Message('audio:pause').broadcast();
|
this.broadcasts[CLIENT_STATE_PAUSED] = await new Message('audio:pause').broadcast();
|
||||||
logger.debug('sent broadcast to pause playback to client(s) \'' + broadcasted + '\'...');
|
logger.debug('sent broadcast to pause playback to client(s) \'' + this.broadcasts[CLIENT_STATE_PAUSED] + '\'...');
|
||||||
this.playback.paused = broadcasted;
|
}
|
||||||
|
|
||||||
|
async #transmitFile() {
|
||||||
|
const timestamp = Date.now();
|
||||||
|
return new Promise((resolve, reject) => {
|
||||||
|
this.buffer.stream.on('data', (data) => {
|
||||||
|
for (let index = 0; index < this.clients.length; index++) {
|
||||||
|
const client = this.clients[index];
|
||||||
|
if (client.audiosocket.write(data) !== true) {
|
||||||
|
logger.debug(client.getTag() + ' detected backpressure, pausing read stream...');
|
||||||
|
this.buffer.stream.pause();
|
||||||
|
}
|
||||||
|
if (client.audiosocket.bytesWritten >= this.buffer.size) {
|
||||||
|
client.audiosocket.end();
|
||||||
|
client.audiosocket.destroy();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
});
|
||||||
|
this.buffer.stream.on('close', () => {
|
||||||
|
logger.debug('reading file \'' + this.buffer.file + '\' took ' + (Date.now() - timestamp) + 'ms (size: ' + this.buffer.stream.bytesRead + ' bytes)');
|
||||||
|
resolve();
|
||||||
|
});
|
||||||
|
this.buffer.stream.on('error', (error) => {
|
||||||
|
// TODO: handle with try / catch
|
||||||
|
reject(error);
|
||||||
|
});
|
||||||
|
});
|
||||||
}
|
}
|
||||||
|
|
||||||
async destroy() {
|
async destroy() {
|
||||||
|
|
|
@ -45,12 +45,12 @@ class Client {
|
||||||
this.heartbeat.on('timeout', () => {
|
this.heartbeat.on('timeout', () => {
|
||||||
this.#handleEventHeartbeatTimeout();
|
this.#handleEventHeartbeatTimeout();
|
||||||
});
|
});
|
||||||
this.heartbeat.on('latency', (data) => {
|
this.heartbeat.on('network-statistics', (data) => {
|
||||||
this.#handleEventLatency(data);
|
this.#handleEventNetworkStatistics(data);
|
||||||
});
|
});
|
||||||
}
|
}
|
||||||
|
|
||||||
async #handleEventData(data, socket) {
|
async #handleEventData(data) {
|
||||||
eventparser.parse(data);
|
eventparser.parse(data);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -74,9 +74,8 @@ class Client {
|
||||||
this.destroy();
|
this.destroy();
|
||||||
}
|
}
|
||||||
|
|
||||||
#handleEventLatency(data) {
|
#handleEventNetworkStatistics(data) {
|
||||||
this.latency = data;
|
logger.debug(this.getTag() + ' network statistics: ' + JSON.stringify(data));
|
||||||
logger.debug(this.getTag() + ' latency: ' + JSON.stringify(data));
|
|
||||||
}
|
}
|
||||||
|
|
||||||
destroy() {
|
destroy() {
|
||||||
|
|
|
@ -24,7 +24,8 @@ class Heartbeat extends EventEmitter {
|
||||||
await sleep(this.interval);
|
await sleep(this.interval);
|
||||||
}
|
}
|
||||||
this.alive = false;
|
this.alive = false;
|
||||||
await new Message('ping', { server: Date.now() }).send(this.client);
|
this.ping = process.hrtime.bigint();
|
||||||
|
await new Message('ping').send(this.client);
|
||||||
this.timeout = setTimeout(() => {
|
this.timeout = setTimeout(() => {
|
||||||
this.#sendPing();
|
this.#sendPing();
|
||||||
}, this.interval);
|
}, this.interval);
|
||||||
|
@ -35,14 +36,15 @@ class Heartbeat extends EventEmitter {
|
||||||
logger.debug(this.client.getTag() + ' handling event \'ping\', responding with \'pong\'...');
|
logger.debug(this.client.getTag() + ' handling event \'ping\', responding with \'pong\'...');
|
||||||
new Message('pong').send(this.client);
|
new Message('pong').send(this.client);
|
||||||
});
|
});
|
||||||
eventparser.on('pong', (data) => {
|
eventparser.on('pong', () => {
|
||||||
logger.debug(this.client.getTag() + ' handling event \'pong\'...');
|
logger.debug(this.client.getTag() + ' handling event \'pong\'...');
|
||||||
const now = Date.now();
|
|
||||||
this.alive = true;
|
this.alive = true;
|
||||||
this.emit('latency', {
|
this.pong = process.hrtime.bigint();
|
||||||
toClient: (data.client - data.server),
|
this.latency = this.pong - this.ping;
|
||||||
fromClient: (now - data.client),
|
this.emit('network-statistics', {
|
||||||
roundtrip: (now - data.server)
|
ping: this.ping.toString(),
|
||||||
|
pong: this.pong.toString(),
|
||||||
|
latency: this.latency.toString()
|
||||||
});
|
});
|
||||||
});
|
});
|
||||||
}
|
}
|
||||||
|
|
|
@ -5,6 +5,7 @@ module.exports = {
|
||||||
|
|
||||||
EVENT_DELIMITER: '<<< kannon >>>',
|
EVENT_DELIMITER: '<<< kannon >>>',
|
||||||
|
|
||||||
|
CLIENT_STATE_REGISTERED: 'registered',
|
||||||
CLIENT_STATE_READY: 'ready',
|
CLIENT_STATE_READY: 'ready',
|
||||||
CLIENT_STATE_PLAYING: 'playing',
|
CLIENT_STATE_PLAYING: 'playing',
|
||||||
CLIENT_STATE_PAUSED: 'paused',
|
CLIENT_STATE_PAUSED: 'paused',
|
||||||
|
|
Loading…
Reference in a new issue