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Diffstat (limited to 'bin/wiki/ImportarDesdeURL/node_modules/@types/node/perf_hooks.d.ts')
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diff --git a/bin/wiki/ImportarDesdeURL/node_modules/@types/node/perf_hooks.d.ts b/bin/wiki/ImportarDesdeURL/node_modules/@types/node/perf_hooks.d.ts new file mode 100644 index 00000000..bf44d446 --- /dev/null +++ b/bin/wiki/ImportarDesdeURL/node_modules/@types/node/perf_hooks.d.ts @@ -0,0 +1,304 @@ +declare module "perf_hooks" { + import { AsyncResource } from "async_hooks"; + + interface PerformanceEntry { + /** + * The total number of milliseconds elapsed for this entry. + * This value will not be meaningful for all Performance Entry types. + */ + readonly duration: number; + + /** + * The name of the performance entry. + */ + readonly name: string; + + /** + * The high resolution millisecond timestamp marking the starting time of the Performance Entry. + */ + readonly startTime: number; + + /** + * The type of the performance entry. + * Currently it may be one of: 'node', 'mark', 'measure', 'gc', or 'function'. + */ + readonly entryType: string; + + /** + * When performanceEntry.entryType is equal to 'gc', the performance.kind property identifies + * the type of garbage collection operation that occurred. + * The value may be one of perf_hooks.constants. + */ + readonly kind?: number; + } + + interface PerformanceNodeTiming extends PerformanceEntry { + /** + * The high resolution millisecond timestamp at which the Node.js process completed bootstrap. + */ + readonly bootstrapComplete: number; + + /** + * The high resolution millisecond timestamp at which cluster processing ended. + */ + readonly clusterSetupEnd: number; + + /** + * The high resolution millisecond timestamp at which cluster processing started. + */ + readonly clusterSetupStart: number; + + /** + * The high resolution millisecond timestamp at which the Node.js event loop exited. + */ + readonly loopExit: number; + + /** + * The high resolution millisecond timestamp at which the Node.js event loop started. + */ + readonly loopStart: number; + + /** + * The high resolution millisecond timestamp at which main module load ended. + */ + readonly moduleLoadEnd: number; + + /** + * The high resolution millisecond timestamp at which main module load started. + */ + readonly moduleLoadStart: number; + + /** + * The high resolution millisecond timestamp at which the Node.js process was initialized. + */ + readonly nodeStart: number; + + /** + * The high resolution millisecond timestamp at which preload module load ended. + */ + readonly preloadModuleLoadEnd: number; + + /** + * The high resolution millisecond timestamp at which preload module load started. + */ + readonly preloadModuleLoadStart: number; + + /** + * The high resolution millisecond timestamp at which third_party_main processing ended. + */ + readonly thirdPartyMainEnd: number; + + /** + * The high resolution millisecond timestamp at which third_party_main processing started. + */ + readonly thirdPartyMainStart: number; + + /** + * The high resolution millisecond timestamp at which the V8 platform was initialized. + */ + readonly v8Start: number; + } + + interface Performance { + /** + * If name is not provided, removes all PerformanceFunction objects from the Performance Timeline. + * If name is provided, removes entries with name. + * @param name + */ + clearFunctions(name?: string): void; + + /** + * If name is not provided, removes all PerformanceMark objects from the Performance Timeline. + * If name is provided, removes only the named mark. + * @param name + */ + clearMarks(name?: string): void; + + /** + * If name is not provided, removes all PerformanceMeasure objects from the Performance Timeline. + * If name is provided, removes only objects whose performanceEntry.name matches name. + */ + clearMeasures(name?: string): void; + + /** + * Returns a list of all PerformanceEntry objects in chronological order with respect to performanceEntry.startTime. + * @return list of all PerformanceEntry objects + */ + getEntries(): PerformanceEntry[]; + + /** + * Returns a list of all PerformanceEntry objects in chronological order with respect to performanceEntry.startTime + * whose performanceEntry.name is equal to name, and optionally, whose performanceEntry.entryType is equal to type. + * @param name + * @param type + * @return list of all PerformanceEntry objects + */ + getEntriesByName(name: string, type?: string): PerformanceEntry[]; + + /** + * Returns a list of all PerformanceEntry objects in chronological order with respect to performanceEntry.startTime + * whose performanceEntry.entryType is equal to type. + * @param type + * @return list of all PerformanceEntry objects + */ + getEntriesByType(type: string): PerformanceEntry[]; + + /** + * Creates a new PerformanceMark entry in the Performance Timeline. + * A PerformanceMark is a subclass of PerformanceEntry whose performanceEntry.entryType is always 'mark', + * and whose performanceEntry.duration is always 0. + * Performance marks are used to mark specific significant moments in the Performance Timeline. + * @param name + */ + mark(name?: string): void; + + /** + * Creates a new PerformanceMeasure entry in the Performance Timeline. + * A PerformanceMeasure is a subclass of PerformanceEntry whose performanceEntry.entryType is always 'measure', + * and whose performanceEntry.duration measures the number of milliseconds elapsed since startMark and endMark. + * + * The startMark argument may identify any existing PerformanceMark in the the Performance Timeline, or may identify + * any of the timestamp properties provided by the PerformanceNodeTiming class. If the named startMark does not exist, + * then startMark is set to timeOrigin by default. + * + * The endMark argument must identify any existing PerformanceMark in the the Performance Timeline or any of the timestamp + * properties provided by the PerformanceNodeTiming class. If the named endMark does not exist, an error will be thrown. + * @param name + * @param startMark + * @param endMark + */ + measure(name: string, startMark: string, endMark: string): void; + + /** + * An instance of the PerformanceNodeTiming class that provides performance metrics for specific Node.js operational milestones. + */ + readonly nodeTiming: PerformanceNodeTiming; + + /** + * @return the current high resolution millisecond timestamp + */ + now(): number; + + /** + * The timeOrigin specifies the high resolution millisecond timestamp from which all performance metric durations are measured. + */ + readonly timeOrigin: number; + + /** + * Wraps a function within a new function that measures the running time of the wrapped function. + * A PerformanceObserver must be subscribed to the 'function' event type in order for the timing details to be accessed. + * @param fn + */ + timerify<T extends (...optionalParams: any[]) => any>(fn: T): T; + } + + interface PerformanceObserverEntryList { + /** + * @return a list of PerformanceEntry objects in chronological order with respect to performanceEntry.startTime. + */ + getEntries(): PerformanceEntry[]; + + /** + * @return a list of PerformanceEntry objects in chronological order with respect to performanceEntry.startTime + * whose performanceEntry.name is equal to name, and optionally, whose performanceEntry.entryType is equal to type. + */ + getEntriesByName(name: string, type?: string): PerformanceEntry[]; + + /** + * @return Returns a list of PerformanceEntry objects in chronological order with respect to performanceEntry.startTime + * whose performanceEntry.entryType is equal to type. + */ + getEntriesByType(type: string): PerformanceEntry[]; + } + + type PerformanceObserverCallback = (list: PerformanceObserverEntryList, observer: PerformanceObserver) => void; + + class PerformanceObserver extends AsyncResource { + constructor(callback: PerformanceObserverCallback); + + /** + * Disconnects the PerformanceObserver instance from all notifications. + */ + disconnect(): void; + + /** + * Subscribes the PerformanceObserver instance to notifications of new PerformanceEntry instances identified by options.entryTypes. + * When options.buffered is false, the callback will be invoked once for every PerformanceEntry instance. + * Property buffered defaults to false. + * @param options + */ + observe(options: { entryTypes: string[], buffered?: boolean }): void; + } + + namespace constants { + const NODE_PERFORMANCE_GC_MAJOR: number; + const NODE_PERFORMANCE_GC_MINOR: number; + const NODE_PERFORMANCE_GC_INCREMENTAL: number; + const NODE_PERFORMANCE_GC_WEAKCB: number; + } + + const performance: Performance; + + interface EventLoopMonitorOptions { + /** + * The sampling rate in milliseconds. + * Must be greater than zero. + * @default 10 + */ + resolution?: number; + } + + interface EventLoopDelayMonitor { + /** + * Enables the event loop delay sample timer. Returns `true` if the timer was started, `false` if it was already started. + */ + enable(): boolean; + /** + * Disables the event loop delay sample timer. Returns `true` if the timer was stopped, `false` if it was already stopped. + */ + disable(): boolean; + + /** + * Resets the collected histogram data. + */ + reset(): void; + + /** + * Returns the value at the given percentile. + * @param percentile A percentile value between 1 and 100. + */ + percentile(percentile: number): number; + + /** + * A `Map` object detailing the accumulated percentile distribution. + */ + readonly percentiles: Map<number, number>; + + /** + * The number of times the event loop delay exceeded the maximum 1 hour eventloop delay threshold. + */ + readonly exceeds: number; + + /** + * The minimum recorded event loop delay. + */ + readonly min: number; + + /** + * The maximum recorded event loop delay. + */ + readonly max: number; + + /** + * The mean of the recorded event loop delays. + */ + readonly mean: number; + + /** + * The standard deviation of the recorded event loop delays. + */ + readonly stddev: number; + } + + function monitorEventLoopDelay(options?: EventLoopMonitorOptions): EventLoopDelayMonitor; +} |