lakutata/src/components/monitor/EventLoopMonitor.mjs

An IoC-based universal application framework.

/* Build Date: Mon Jan 05 2026 23:52:23 GMT+0800 (China Standard Time) */
import { monitorEventLoopDelay as t, performance as i } from "node:perf_hooks";

import { Component as e } from "../../lib/core/Component.mjs";

import "../../../vendor/Package.internal.3.mjs";

import "../../../vendor/Package.internal.4.mjs";

import "../../lib/base/async-constructor/AsyncConstructor.mjs";

import "../../lib/base/async-constructor/Append.mjs";

import "../../lib/helpers/IsPromiseLike.mjs";

import "../../lib/helpers/IsPromise.mjs";

import "util/types";

import "../../decorators/di/Lifetime.mjs";

import "../../lib/base/internal/ObjectLifetime.mjs";

import "../../constants/DIMetadataKey.mjs";

import "../../../vendor/Package.internal.1.mjs";

import "../../../vendor/Package.internal.2.mjs";

import "../../exceptions/di/LifetimeLockedException.mjs";

import "../../lib/base/abstracts/Exception.mjs";

import "../../../vendor/Package.internal.5.mjs";

import "../../lib/helpers/As.mjs";

import "../../../vendor/Package.internal.6.mjs";

import "../../lib/base/internal/ThrowWarning.mjs";

import "../../lib/helpers/Templating.mjs";

import "../../lib/base/internal/CamelCase.mjs";

import "../../lib/helpers/NoCase.mjs";

import "../../lib/helpers/DevNull.mjs";

import "../../exceptions/MethodNotFoundException.mjs";

import "../../lib/ioc/DependencyInjectionContainer.mjs";

import "util";

import "../../lib/ioc/Errors.mjs";

import "../../exceptions/di/DependencyInjectionException.mjs";

import "../../lib/base/internal/ConstructorSymbol.mjs";

import "node:crypto";

import "../../../vendor/Package.internal.7.mjs";

import "../../lib/base/internal/DataValidator.mjs";

import "node:util/types";

import "../../lib/validation/VLD.mjs";

import "url";

import "../../exceptions/dto/InvalidValueException.mjs";

import "../../../vendor/Package.internal.8.mjs";

import "../../lib/helpers/IsHtml.mjs";

import "../../lib/helpers/IsXML.mjs";

import "../../constants/DTOMetadataKey.mjs";

import "../../lib/helpers/ObjectConstructor.mjs";

import "../../lib/helpers/ObjectParentConstructors.mjs";

import "../../lib/helpers/ObjectParentConstructor.mjs";

import "../../lib/helpers/ObjectPrototype.mjs";

import "../../lib/ioc/InjectionMode.mjs";

import "../../lib/ioc/Lifetime.mjs";

import "../../lib/ioc/ListModules.mjs";

import "os";

import "path";

import "stream";

import "events";

import "fs";

import "../../lib/ioc/Utils.mjs";

import "../../lib/ioc/FunctionTokenizer.mjs";

import "../../lib/ioc/LoadModules.mjs";

import "../../lib/ioc/Resolvers.mjs";

import "../../lib/ioc/ParamParser.mjs";

import "../../lib/base/internal/ObjectWeakRefs.mjs";

import "../../lib/base/internal/ConfigurableRecordsInjection.mjs";

import "../../lib/base/internal/ObjectConfiguration.mjs";

import "../../lib/base/internal/ObjectInjection.mjs";

import "../../lib/base/internal/ObjectContainer.mjs";

import "../../decorators/dto/Expect.mjs";

import "../../decorators/dto/IndexSignature.mjs";

import "../../decorators/dto/Accept.mjs";

import "../../lib/base/internal/MethodValidation.mjs";

import "../../exceptions/dto/InvalidMethodAcceptException.mjs";

import "../../exceptions/dto/InvalidMethodReturnException.mjs";

import "../../lib/helpers/IsEmptyObject.mjs";

import "../../lib/base/EventEmitter.mjs";

import "../../lib/core/Provider.mjs";

class EventLoopMonitor extends e {
    constructor() {
        super(...arguments);
        this.histogram = t({
            resolution: 1
        });
        this.initUtil = i.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: i.eventLoopUtilization(this.initUtil).utilization * 100
        };
    }
    async init() {
        this.histogram.enable();
    }
    async destroy() {
        this.histogram.disable();
    }
    reset() {
        this.histogram.reset();
        this.initUtil = i.eventLoopUtilization();
    }
}

export { EventLoopMonitor };