echogarden/dist/utilities/Timer.js

An easy-to-use speech toolset. Includes tools for synthesis, recognition, alignment, speech translation, language detection, source separation and more.

import { logToStderr, roundToDigits } from './Utilities.js';
export class Timer {
    startTime = 0;
    constructor() {
        this.restart();
    }
    restart() {
        this.startTime = Timer.currentTime;
    }
    get elapsedTime() {
        // Elapsed time (milliseconds)
        return Timer.currentTime - this.startTime;
    }
    get elapsedTimeSeconds() {
        // Elapsed time (seconds)
        return this.elapsedTime / 1000;
    }
    getElapsedTimeAndRestart() {
        const elapsedTime = this.elapsedTime;
        this.restart();
        return elapsedTime;
    }
    logAndRestart(title, timePrecision = 3) {
        const elapsedTime = this.elapsedTime;
        //
        const message = `${title}: ${roundToDigits(elapsedTime, timePrecision)}ms`;
        logToStderr(message);
        //
        this.restart();
        return elapsedTime;
    }
    static get currentTime() {
        if (!this.getTimestamp) {
            this.createTimestampFunction();
        }
        return this.getTimestamp();
    }
    static get microsecondTimestamp() {
        return Math.floor(Timer.currentTime * 1000);
    }
    static createTimestampFunction() {
        if (typeof process === 'object' && typeof process.hrtime === 'function') {
            let baseTimestamp = 0;
            this.getTimestamp = () => {
                const nodeTimeNanoSeconds = process.hrtime.bigint();
                const nodeTimeMilliseconds = Number(nodeTimeNanoSeconds) / 1_000_000;
                return baseTimestamp + nodeTimeMilliseconds;
            };
            baseTimestamp = Date.now() - this.getTimestamp();
        }
        else if (typeof performance === 'object' && performance.now) {
            const baseTimestamp = Date.now() - performance.now();
            this.getTimestamp = () => baseTimestamp + performance.now();
        }
        else {
            this.getTimestamp = () => Date.now();
        }
    }
    static getTimestamp;
}
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