lakutata/src/components/monitor/EventLoopMonitor.cjs

An IoC-based universal application framework.

/* Build Date: Mon Jan 05 2026 23:52:23 GMT+0800 (China Standard Time) */
"use strict";

Object.defineProperty(exports, Symbol.toStringTag, {
    value: "Module"
});

const e = require("node:perf_hooks");

const r = require("../../lib/core/Component.cjs");

require("../../../vendor/Package.internal.3.cjs");

require("../../../vendor/Package.internal.4.cjs");

require("../../lib/base/async-constructor/AsyncConstructor.cjs");

require("../../lib/base/async-constructor/Append.cjs");

require("../../lib/helpers/IsPromiseLike.cjs");

require("../../lib/helpers/IsPromise.cjs");

require("util/types");

require("../../decorators/di/Lifetime.cjs");

require("../../lib/base/internal/ObjectLifetime.cjs");

require("../../constants/DIMetadataKey.cjs");

require("../../../vendor/Package.internal.1.cjs");

require("../../../vendor/Package.internal.2.cjs");

require("../../exceptions/di/LifetimeLockedException.cjs");

require("../../lib/base/abstracts/Exception.cjs");

require("../../../vendor/Package.internal.5.cjs");

require("../../lib/helpers/As.cjs");

require("../../../vendor/Package.internal.6.cjs");

require("../../lib/base/internal/ThrowWarning.cjs");

require("../../lib/helpers/Templating.cjs");

require("../../lib/base/internal/CamelCase.cjs");

require("../../lib/helpers/NoCase.cjs");

require("../../lib/helpers/DevNull.cjs");

require("../../exceptions/MethodNotFoundException.cjs");

require("../../lib/ioc/DependencyInjectionContainer.cjs");

require("util");

require("../../lib/ioc/Errors.cjs");

require("../../exceptions/di/DependencyInjectionException.cjs");

require("../../lib/base/internal/ConstructorSymbol.cjs");

require("node:crypto");

require("../../../vendor/Package.internal.7.cjs");

require("../../lib/base/internal/DataValidator.cjs");

require("node:util/types");

require("../../lib/validation/VLD.cjs");

require("url");

require("../../exceptions/dto/InvalidValueException.cjs");

require("../../../vendor/Package.internal.8.cjs");

require("../../lib/helpers/IsHtml.cjs");

require("../../lib/helpers/IsXML.cjs");

require("../../constants/DTOMetadataKey.cjs");

require("../../lib/helpers/ObjectConstructor.cjs");

require("../../lib/helpers/ObjectParentConstructors.cjs");

require("../../lib/helpers/ObjectParentConstructor.cjs");

require("../../lib/helpers/ObjectPrototype.cjs");

require("../../lib/ioc/InjectionMode.cjs");

require("../../lib/ioc/Lifetime.cjs");

require("../../lib/ioc/ListModules.cjs");

require("os");

require("path");

require("stream");

require("events");

require("fs");

require("../../lib/ioc/Utils.cjs");

require("../../lib/ioc/FunctionTokenizer.cjs");

require("../../lib/ioc/LoadModules.cjs");

require("../../lib/ioc/Resolvers.cjs");

require("../../lib/ioc/ParamParser.cjs");

require("../../lib/base/internal/ObjectWeakRefs.cjs");

require("../../lib/base/internal/ConfigurableRecordsInjection.cjs");

require("../../lib/base/internal/ObjectConfiguration.cjs");

require("../../lib/base/internal/ObjectInjection.cjs");

require("../../lib/base/internal/ObjectContainer.cjs");

require("../../decorators/dto/Expect.cjs");

require("../../decorators/dto/IndexSignature.cjs");

require("../../decorators/dto/Accept.cjs");

require("../../lib/base/internal/MethodValidation.cjs");

require("../../exceptions/dto/InvalidMethodAcceptException.cjs");

require("../../exceptions/dto/InvalidMethodReturnException.cjs");

require("../../lib/helpers/IsEmptyObject.cjs");

require("../../lib/base/EventEmitter.cjs");

require("../../lib/core/Provider.cjs");

class EventLoopMonitor extends r.Component {
    constructor() {
        super(...arguments);
        this.histogram = e.monitorEventLoopDelay({
            resolution: 1
        });
        this.initUtil = e.performance.eventLoopUtilization();
    }
    get statistics() {
        return {
            min: this.histogram.min / 1e6,
            max: this.histogram.max / 1e6,
            avg: this.histogram.mean / 1e6,
            stdDev: this.histogram.stddev / 1e6,
            p50: this.histogram.percentile(50) / 1e6,
            p90: this.histogram.percentile(90) / 1e6,
            p95: this.histogram.percentile(95) / 1e6,
            p99: this.histogram.percentile(99) / 1e6,
            utilRate: e.performance.eventLoopUtilization(this.initUtil).utilization * 100
        };
    }
    async init() {
        this.histogram.enable();
    }
    async destroy() {
        this.histogram.disable();
    }
    reset() {
        this.histogram.reset();
        this.initUtil = e.performance.eventLoopUtilization();
    }
}

exports.EventLoopMonitor = EventLoopMonitor;