@colyseus/loadtest/build/index.mjs.map

Utility tool for load testing Colyseus.

{
  "version": 3,
  "sources": ["../src/index.ts"],
  "sourcesContent": ["import fs from \"fs\";\nimport path from \"path\";\nimport util from \"util\";\nimport blessed from \"blessed\";\nimport WebSocket from \"ws\";\nimport timer from \"timers/promises\"\nimport minimist from \"minimist\";\n\nimport { Client, Room } from \"colyseus.js\";\n\nexport type RequestJoinOperations = {\n    requestNumber?: number,\n};\n\nexport type Options = {\n    endpoint: string,\n    roomName: string,\n    roomId: string,\n    numClients: number,\n    delay: number,\n    logLevel: string,\n    reestablishAllDelay: number,\n    retryFailed: number,\n    output: string,\n    requestJoinOptions?: RequestJoinOperations,\n    clientId: number,\n};\n\nexport type MainCallback = (options: Options) => Promise<void>;\n\nexport function cli(main: MainCallback) {\n    const logWriter = {\n        handle: null as fs.WriteStream,\n        isClosing: false as boolean,\n        create(filepath: string) {\n            if (fs.existsSync(filepath)) {\n                const moveTo = `${path.basename(filepath)}.bkp`;\n                console.log(`Moving previous \"${path.basename(filepath)}\" file to \"${moveTo}\"`);\n                fs.renameSync(filepath, path.resolve(path.dirname(filepath), moveTo));\n            }\n            this.handle = fs.createWriteStream(filepath);\n        },\n\n        write(contents: any, close?: boolean) {\n            if (!this.handle || this.isClosing) { return; }\n            if (close) { this.isClosing = true; }\n\n            return new Promise<void>((resolve, reject) => {\n                const now = new Date();\n                this.handle.write(`[${now.toLocaleString()}] ${contents}\\n`, (err) => {\n                    if (err) { return reject(err); }\n                    if (this.isClosing) { this.handle.close(); }\n                    resolve();\n                });\n\n            })\n        }\n    };\n\n    const argv = minimist(process.argv.slice(2));\n\n    // const packageJson = import(\"../package.json\");\n    const packageJson = { name: \"@colyseus/loadtest\", version: \"0.15\" };\n\n    function displayHelpAndExit() {\n        console.log(`${packageJson.name} v${packageJson.version}\n\nOptions:\n    --endpoint: WebSocket endpoint for all connections (default: ws://localhost:2567)\n    --room: room handler name (you can also use --roomId instead to join by id)\n    --roomId: room id (specify instead of --room)\n    [--numClients]: number of connections to open (default is 1)\n    [--delay]: delay to start each connection (in milliseconds)\n    [--project]: specify a tsconfig.json file path\n    [--reestablishAllDelay]: delay for closing and re-establishing all connections (in milliseconds)\n    [--retryFailed]: delay to retry failed connections (in milliseconds)\n    [--output]: specify an output file for output logs\n\nExample:\n    colyseus-loadtest example/bot.ts --endpoint ws://localhost:2567 --room state_handler`);\n        process.exit();\n\n    }\n\n    if (argv.help) { displayHelpAndExit(); }\n\n    const options: Options = {\n        endpoint: argv.endpoint || `ws://localhost:2567`,\n        roomName: argv.room,\n        roomId: argv.roomId,\n        numClients: argv.numClients || 1,\n        delay: argv.delay || 0,\n        logLevel: argv.logLevel?.toLowerCase() || \"all\", // TODO: not being used atm\n        reestablishAllDelay: argv.reestablishAllDelay || 0,\n        retryFailed: argv.retryFailed || 0,\n        output: argv.output && path.resolve(argv.output),\n        clientId: 0,\n    }\n\n    if (!main) {\n        console.error(\"\u274C You must specify an entrypoint function.\");\n        console.error(\"\");\n        displayHelpAndExit();\n    }\n\n    const connections: Room[] = [];\n\n    if (!options.roomName && !options.roomId) {\n        console.error(\"\u274C You need to specify a room with either one of the '--room' or '--roomId' options.\");\n        console.error(\"\");\n        displayHelpAndExit();\n    }\n\n    if (options.output) {\n        logWriter.create(options.output);\n        logWriter.write(`@colyseus/loadtest\\n${Object.keys(options)\n            .filter(key => options[key])\n            .map((key) => `${key}: ${options[key]}`).join('\\n')}`)\n    }\n\n    const screen = blessed.screen({ smartCSR: true });\n\n    const headerBox = blessed.box({\n        label: ` \u2694  ${packageJson.name} ${packageJson.version} \u2694  `,\n        top: 0,\n        left: 0,\n        width: \"70%\",\n        height: 'shrink',\n        children: [\n            blessed.text({ top: 1, left: 1, tags: true, content: `{yellow-fg}endpoint:{/yellow-fg} ${options.endpoint}` }),\n            blessed.text({ top: 2, left: 1, tags: true, content: `{yellow-fg}room:{/yellow-fg} ${options.roomName ?? options.roomId}` }),\n            blessed.text({ top: 3, left: 1, tags: true, content: `{yellow-fg}serialization method:{/yellow-fg} ...` }),\n            blessed.text({ top: 4, left: 1, tags: true, content: `{yellow-fg}time elapsed:{/yellow-fg} ...` }),\n        ],\n        border: { type: 'line' },\n        style: {\n            label: { fg: 'cyan' },\n            border: { fg: 'green' }\n        }\n    });\n\n    const currentStats = {\n        connected: 0,\n        disconnected: 0,\n        failed: 0,\n    };\n\n    const totalStats = {\n        connected: 0,\n        disconnected: 0,\n        failed: 0,\n        errors: 0,\n    };\n\n    const successfulConnectionBox = blessed.text({ top: 2, left: 1, tags: true, content: `{yellow-fg}connected:{/yellow-fg} ${currentStats.connected}` });\n    const disconnectedClientsBox = blessed.text({ top: 3, left: 1, tags: true, content: `{yellow-fg}disconnected:{/yellow-fg} ${currentStats.disconnected}` });\n    const failedConnectionBox = blessed.text({ top: 4, left: 1, tags: true, content: `{yellow-fg}failed:{/yellow-fg} ${currentStats.failed}` });\n\n    const clientsBox = blessed.box({\n        label: ' clients ',\n        left: \"70%\",\n        width: \"30%\",\n        height: 'shrink',\n        children: [\n            blessed.text({ top: 1, left: 1, tags: true, content: `{yellow-fg}numClients:{/yellow-fg} ${options.numClients}` }),\n            successfulConnectionBox,\n            disconnectedClientsBox,\n            failedConnectionBox\n        ],\n        border: { type: 'line' },\n        tags: true,\n        style: {\n            label: { fg: 'cyan' },\n            border: { fg: 'green' },\n        }\n    })\n\n    const processingBox = blessed.box({\n        label: ' processing ',\n        top: 7,\n        left: \"70%\",\n        width: \"30%\",\n        height: 'shrink',\n        border: { type: 'line' },\n        children: [\n            blessed.text({ top: 1, left: 1, tags: true, content: `{yellow-fg}memory:{/yellow-fg} ...` }),\n            blessed.text({ top: 2, left: 1, tags: true, content: `{yellow-fg}cpu:{/yellow-fg} ...` }),\n            // blessed.text({ top: 1, left: 1, content: `memory: ${process.memoryUsage().heapUsed} / ${process.memoryUsage().heapTotal}` })\n        ],\n        tags: true,\n        style: {\n            label: { fg: 'cyan' },\n            border: { fg: 'green' },\n        }\n    });\n\n    const networkingBox = blessed.box({\n        label: ' networking ',\n        top: 12,\n        left: \"70%\",\n        width: \"30%\",\n        border: { type: 'line' },\n        children: [\n            blessed.text({ top: 1, left: 1, tags: true, content: `{yellow-fg}bytes received:{/yellow-fg} ...` }),\n            blessed.text({ top: 2, left: 1, tags: true, content: `{yellow-fg}bytes sent:{/yellow-fg} ...` }),\n            // blessed.text({ top: 1, left: 1, content: `memory: ${process.memoryUsage().heapUsed} / ${process.memoryUsage().heapTotal}` })\n        ],\n        tags: true,\n        style: {\n            label: { fg: 'cyan' },\n            border: { fg: 'green' },\n        }\n    });\n\n    const logBox = blessed.box({\n        label: ' logs ',\n        top: 7,\n        width: \"70%\",\n        padding: 1,\n        border: { type: 'line' },\n        tags: true,\n        style: {\n            label: { fg: 'cyan' },\n            border: { fg: 'green' },\n        },\n        // scroll\n        scrollable: true,\n        input: true,\n        alwaysScroll: true,\n        scrollbar: {\n            style: {\n                bg: \"green\"\n            },\n            track: {\n                bg: \"gray\"\n            }\n        },\n        keys: true,\n        vi: true,\n        mouse: true\n    });\n\n    screen.key(['escape', 'q', 'C-c'], (ch, key) => beforeExit(\"SIGINT\")); // Quit on Escape, q, or Control-C.\n    screen.title = \"@colyseus/loadtest\";\n    screen.append(headerBox);\n    screen.append(clientsBox);\n    screen.append(logBox);\n    screen.append(processingBox);\n    screen.append(networkingBox);\n    screen.render();\n\n    const debug = console.debug;\n    const log = console.log;\n    const warn = console.warn;\n    const info = console.info;\n    const error = console.error;\n\n    console.debug = function(...args) {\n        logBox.content = `{grey-fg}${args.map(arg => util.inspect(arg)).join(\" \")}{/grey-fg}\\n${logBox.content}`;\n        screen.render();\n    };\n    console.log = function(...args) {\n        logBox.content = args.map(arg => util.inspect(arg)).join(\" \") + \"\\n\" + logBox.content;\n        screen.render();\n    };\n    console.warn = function(...args) {\n        logBox.content = `{yellow-fg}${args.map(arg => util.inspect(arg)).join(\" \")}{/yellow-fg}\\n${logBox.content}`;\n        screen.render();\n    };\n    console.info = function(...args) {\n        logBox.content = `{blue-fg}${args.map(arg => util.inspect(arg)).join(\" \")}{/blue-fg}\\n${logBox.content}`;\n        screen.render();\n    };\n    console.error = function(...args) {\n        totalStats.errors++;\n        logBox.content = `{red-fg}${args.map(arg => util.inspect(arg)).join(\" \")}{/red-fg}\\n${logBox.content}`;\n        screen.render();\n    };\n\n    process.on(\"uncaughtException\", (e) => {\n        console.error(e);\n    });\n\n    let isExiting = false;\n    async function beforeExit(signal: NodeJS.Signals, closeCode: number = 0) {\n        log(\"Writing log file...\");\n\n        if (isExiting) {\n            return;\n\n        } else {\n            isExiting = true;\n        }\n\n        const hasError = (closeCode > 0);\n\n        await logWriter.write(`Finished. Summary:\n    Successful connections: ${totalStats.connected}\n    Failed connections: ${totalStats.failed}\n    Total errors: ${totalStats.errors}\n    Logs:\n    ${logBox.content}`, true /* closing */)\n\n        process.exit(hasError ? 1 : 0);\n    }\n\n    // trap process signals\n    process.once('exit', (code) => beforeExit(\"SIGINT\", code));\n    ['SIGINT', 'SIGTERM', 'SIGUSR2'].forEach((signal) =>\n        process.once(signal as NodeJS.Signals, (signal) => beforeExit(signal)));\n\n    function formatBytes (bytes) {\n        if (bytes < 1024) {\n            return `${bytes} b`;\n\n        } else if (bytes < Math.pow(1024, 2)) {\n            return `${(bytes / 1024).toFixed(2)} kb`;\n\n        } else if (bytes < Math.pow(1024, 4)) {\n            return `${(bytes / 1024 / 1024).toFixed(2)} MB`;\n        }\n    }\n\n    function elapsedTime(inputSeconds) {\n        const days = Math.floor(inputSeconds / (60 * 60 * 24));\n        const hours = Math.floor((inputSeconds % (60 * 60 * 24)) / (60 * 60));\n        const minutes = Math.floor(((inputSeconds % (60 * 60 * 24)) % (60 * 60)) / 60);\n        const seconds = Math.floor(((inputSeconds % (60 * 60 * 24)) % (60 * 60)) % 60);\n\n        let ddhhmmss = '';\n\n        if (days > 0) { ddhhmmss += days + ' day '; }\n        if (hours > 0) { ddhhmmss += hours + ' hour '; }\n        if (minutes > 0) { ddhhmmss += minutes + ' minutes '; }\n        if (seconds > 0) { ddhhmmss += seconds + ' seconds '; }\n\n        return ddhhmmss || \"...\";\n    }\n\n    /**\n     * Update memory / cpu usage\n     */\n    const loadTestStartTime = Date.now();\n    let startTime = process.hrtime()\n    let startUsage = process.cpuUsage()\n    let bytesReceived: number = 0;\n    let bytesSent: number = 0;\n    setInterval(() => {\n        /**\n         * Program elapsed time\n         */\n        const elapsedTimeText = (headerBox.children[3] as blessed.Widgets.TextElement);\n        elapsedTimeText.content = `{yellow-fg}time elapsed:{/yellow-fg} ${elapsedTime(Math.round((Date.now() - loadTestStartTime) / 1000))}`;\n\n        /**\n         * Memory / CPU Usage\n         */\n        const memoryText = (processingBox.children[0] as blessed.Widgets.TextElement);\n        memoryText.content = `{yellow-fg}memory:{/yellow-fg} ${(process.memoryUsage().heapUsed / 1024 / 1024).toFixed(2)} MB`;\n\n        var elapTime = process.hrtime(startTime)\n        var elapUsage = process.cpuUsage(startUsage)\n\n        var elapTimeMS = elapTime[0] * 1000 + elapTime[1] / 1000000;\n        var elapUserMS = elapUsage.user / 1000;\n        var elapSystMS = elapUsage.system / 1000;\n        var cpuPercent = (100 * (elapUserMS + elapSystMS) / elapTimeMS).toFixed(1);\n\n        const cpuText = (processingBox.children[1] as blessed.Widgets.TextElement);\n        cpuText.content = `{yellow-fg}cpu:{/yellow-fg} ${cpuPercent}%`;\n\n        screen.render();\n\n        startTime = process.hrtime()\n        startUsage = process.cpuUsage()\n\n        /**\n         * Networking\n         */\n        const bytesReceivedBox = (networkingBox.children[0] as blessed.Widgets.TextElement);\n        bytesReceivedBox.content = `{yellow-fg}bytes received:{/yellow-fg} ${formatBytes(bytesReceived)}`\n\n        const bytesSentBox = (networkingBox.children[1] as blessed.Widgets.TextElement);\n        bytesSentBox.content = `{yellow-fg}bytes sent:{/yellow-fg} ${formatBytes(bytesSent)}`\n    }, 1000);\n\n    function handleError (message) {\n        if (message) {\n            console.error(message);\n            logWriter.write(message);\n        }\n\n        currentStats.failed++;\n        totalStats.failed++;\n\n        failedConnectionBox.content = `{red-fg}failed:{/red-fg} ${currentStats.failed}`;\n        screen.render();\n    }\n\n    async function connect(main: MainCallback, i: number) {\n        try {\n            await main({ ...options, clientId: i });\n        } catch (e) {\n            handleError(e);\n        }\n    }\n\n    async function connectAll(main: MainCallback) {\n        for (let i = 0; i < options.numClients; i++) {\n            await connect(main, i);\n\n            if (options.delay > 0) {\n                await timer.setTimeout(options.delay);\n            }\n        }\n    }\n\n    async function reestablishAll(scripting: any) {\n        // drop all connections, wait for acknowledgement\n        connections.map((connection) => connection.connection.close());\n\n        // clear array\n        connections.splice(0, connections.length);\n        connections.length = 0;\n\n        // connect again\n        await connectAll(scripting);\n    }\n\n    const handleClientJoin = function(room: Room) {\n        // display serialization method in the UI\n        const serializerIdText = (headerBox.children[2] as blessed.Widgets.TextElement);\n        serializerIdText.content = `{yellow-fg}serialization method:{/yellow-fg} ${room.serializerId}`;\n\n        const ws: WebSocket = (room.connection.transport as any).ws;\n        ws.addEventListener('message', (event) => {\n            bytesReceived += new Uint8Array(event.data).length;\n        });\n\n        // overwrite original send function to trap sent bytes.\n        const _send = ws.send;\n        ws.send = function (data: ArrayBuffer) {\n            if (ws.readyState == 1) {\n                bytesSent += data.byteLength;\n            }\n            _send.call(ws, data);\n        }\n\n        currentStats.connected++;\n        totalStats.connected++;\n        successfulConnectionBox.content = `{yellow-fg}connected:{/yellow-fg} ${currentStats.connected}`;\n        screen.render();\n\n        // update stats on leave\n        room.onLeave(() => {\n            currentStats.disconnected++;\n            totalStats.disconnected++;\n            disconnectedClientsBox.content = `{yellow-fg}disconnected:{/yellow-fg} ${currentStats.disconnected}`;\n            screen.render();\n        });\n\n        connections.push(room);\n    }\n\n    const _originalJoinOrCreate = Client.prototype.joinOrCreate;\n    Client.prototype.joinOrCreate = async function(this: Client) {\n        const room = await _originalJoinOrCreate.apply(this, arguments);\n        handleClientJoin(room);\n        return room;\n    }\n\n    const _originalCreate = Client.prototype.create;\n    Client.prototype.create = async function(this: Client) {\n        const room = await _originalCreate.apply(this, arguments);\n        handleClientJoin(room);\n        return room;\n    }\n\n    const _originalJoin = Client.prototype.join;\n    Client.prototype.join = async function(this: Client) {\n        const room = await _originalJoin.apply(this, arguments);\n        handleClientJoin(room);\n        return room;\n    }\n\n    const _originalJoinById = Client.prototype.joinById;\n    Client.prototype.joinById = async function(this: Client) {\n        const room = await _originalJoinById.apply(this, arguments);\n        handleClientJoin(room);\n        return room;\n    }\n\n    try {\n        (async () => {\n            await connectAll(main);\n\n            if (options.reestablishAllDelay > 0) {\n                while (true) {\n                    // wait for delay\n                    await timer.setTimeout(options.reestablishAllDelay);\n\n                    await reestablishAll(main);\n                }\n            }\n        })();\n\n    } catch (e) {\n        error(e.stack);\n    }\n}\n"],
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}