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53 lines
1.4 KiB
53 lines
1.4 KiB
3 years ago
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/**
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* trace-event - A library to create a trace of your node app per
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* Google's Trace Event format:
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* // JSSTYLED
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* https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU
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*/
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/// <reference types="node" />
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import { Readable as ReadableStream } from "stream";
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export interface Event {
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ts: number;
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pid: number;
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tid: number;
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/** event phase */
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ph?: string;
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[otherData: string]: any;
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}
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export interface Fields {
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cat?: any;
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args?: any;
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[filedName: string]: any;
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}
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export interface TracerOptions {
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parent?: Tracer | null;
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fields?: Fields | null;
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objectMode?: boolean | null;
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noStream?: boolean;
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}
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export declare class Tracer extends ReadableStream {
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private _objectMode;
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/** Node Stream internal APIs */
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private _push;
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private firstPush?;
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private noStream;
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private events;
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private parent;
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private fields;
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constructor(opts?: TracerOptions);
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/**
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* If in no streamMode in order to flush out the trace
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* you need to call flush.
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*/
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flush(): void;
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_read(_: number): void;
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private _pushString;
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private _flush;
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child(fields: Fields): Tracer;
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begin(fields: Fields): void;
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end(fields: Fields): void;
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completeEvent(fields: Fields): void;
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instantEvent(fields: Fields): void;
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mkEventFunc(ph: string): (fields: Fields) => void;
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}
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