@code-pushup/utils
Advanced tools
| import { type PerformanceObserverOptions } from '../performance-observer.js'; | ||
| import type { ActionTrackEntryPayload } from '../user-timing-extensibility-api.type.js'; | ||
| import { Profiler, type ProfilerOptions } from './profiler.js'; | ||
| /** | ||
| * Options for configuring a NodejsProfiler instance. | ||
| * | ||
| * Extends ProfilerOptions with a required sink parameter. | ||
| * | ||
| * @template Tracks - Record type defining available track names and their configurations | ||
| */ | ||
| export type NodejsProfilerOptions<DomainEvents extends string | object, Tracks extends Record<string, ActionTrackEntryPayload>> = ProfilerOptions<Tracks> & Omit<PerformanceObserverOptions<DomainEvents>, 'sink'> & { | ||
| /** | ||
| * File path for the WriteAheadLogFile sink. | ||
| * If not provided, defaults to `trace.json` in the current working directory. | ||
| * | ||
| * @default path.join(process.cwd(), 'trace.json') | ||
| */ | ||
| filename?: string; | ||
| /** | ||
| * Name of the environment variable to check for debug mode. | ||
| * When the env var is set to 'true', profiler state transitions create performance marks for debugging. | ||
| * | ||
| * @default 'CP_PROFILER_DEBUG' | ||
| */ | ||
| debugEnvVar?: string; | ||
| }; | ||
| /** | ||
| * Performance profiler with automatic process exit handling for buffered performance data. | ||
| * | ||
| * This class extends the base {@link Profiler} with automatic flushing of performance data | ||
| * when the process exits. It automatically creates a {@link WriteAheadLogFile} sink that buffers | ||
| * performance entries and ensures they are written out during process termination, even for unexpected exits. | ||
| * | ||
| * The sink uses a default codec for serializing performance data to JSON format, | ||
| * enabling compatibility with Chrome DevTools trace file format. | ||
| * | ||
| * The profiler automatically subscribes to the performance observer when enabled and installs | ||
| * exit handlers that flush buffered data on process termination (signals, fatal errors, or normal exit). | ||
| * | ||
| * @template DomainEvents - The type of domain-specific events encoded by the performance observer sink | ||
| * @template Tracks - Record type defining available track names and their configurations | ||
| */ | ||
| export declare class NodejsProfiler<DomainEvents extends string | object, Tracks extends Record<string, ActionTrackEntryPayload> = Record<string, ActionTrackEntryPayload>> extends Profiler<Tracks> { | ||
| #private; | ||
| /** | ||
| * Creates a NodejsProfiler instance. | ||
| * A WriteAheadLogFile sink is automatically created for buffering performance data. | ||
| * @param options - Configuration options | ||
| */ | ||
| constructor(options: NodejsProfilerOptions<DomainEvents, Tracks>); | ||
| /** | ||
| * Returns whether debug mode is enabled for profiler state transitions. | ||
| * | ||
| * Debug mode is initially determined by the environment variable specified by `debugEnvVar` | ||
| * (defaults to 'CP_PROFILER_DEBUG') during construction, but can be changed at runtime | ||
| * using {@link setDebugMode}. When enabled, profiler state transitions create | ||
| * performance marks for debugging. | ||
| * | ||
| * @returns true if debug mode is enabled, false otherwise | ||
| */ | ||
| get debug(): boolean; | ||
| /** | ||
| * Sets debug mode for profiler state transitions. | ||
| * | ||
| * When debug mode is enabled, profiler state transitions create performance marks | ||
| * for debugging. This allows runtime control of debug mode without needing to | ||
| * restart the application or change environment variables. | ||
| * | ||
| * @param enabled - Whether to enable debug mode | ||
| */ | ||
| setDebugMode(enabled: boolean): void; | ||
| /** | ||
| * Closes profiler and releases resources. Idempotent, safe for exit handlers. | ||
| * **Exit Handler Usage**: Call only this method from process exit handlers. | ||
| */ | ||
| close(): void; | ||
| /** @returns Current profiler state */ | ||
| get state(): 'idle' | 'running' | 'closed'; | ||
| /** @returns Whether profiler is in 'running' state */ | ||
| isEnabled(): boolean; | ||
| /** Enables profiling (start/stop) */ | ||
| setEnabled(enabled: boolean): void; | ||
| /** @returns Queue statistics and profiling state for monitoring */ | ||
| get stats(): { | ||
| debug: boolean; | ||
| state: "idle" | "running" | "closed"; | ||
| walOpen: boolean; | ||
| isSubscribed: boolean; | ||
| queued: number; | ||
| dropped: number; | ||
| written: number; | ||
| maxQueueSize: number; | ||
| flushThreshold: number; | ||
| addedSinceLastFlush: number; | ||
| buffered: boolean; | ||
| }; | ||
| /** Flushes buffered performance data to sink. */ | ||
| flush(): void; | ||
| /** @returns The file path of the WriteAheadLogFile sink */ | ||
| get filePath(): string; | ||
| } |
| import path from 'node:path'; | ||
| import { isEnvVarEnabled } from '../env.js'; | ||
| import { subscribeProcessExit } from '../exit-process.js'; | ||
| import { PerformanceObserverSink, } from '../performance-observer.js'; | ||
| import { objectToEntries } from '../transform.js'; | ||
| import { errorToMarkerPayload } from '../user-timing-extensibility-api-utils.js'; | ||
| import { WriteAheadLogFile, getShardId, getShardedGroupId, getShardedPath, } from '../wal.js'; | ||
| import { PROFILER_DEBUG_ENV_VAR, PROFILER_ENABLED_ENV_VAR, } from './constants.js'; | ||
| import { Profiler } from './profiler.js'; | ||
| import { traceEventWalFormat } from './wal-json-trace.js'; | ||
| /** | ||
| * Performance profiler with automatic process exit handling for buffered performance data. | ||
| * | ||
| * This class extends the base {@link Profiler} with automatic flushing of performance data | ||
| * when the process exits. It automatically creates a {@link WriteAheadLogFile} sink that buffers | ||
| * performance entries and ensures they are written out during process termination, even for unexpected exits. | ||
| * | ||
| * The sink uses a default codec for serializing performance data to JSON format, | ||
| * enabling compatibility with Chrome DevTools trace file format. | ||
| * | ||
| * The profiler automatically subscribes to the performance observer when enabled and installs | ||
| * exit handlers that flush buffered data on process termination (signals, fatal errors, or normal exit). | ||
| * | ||
| * @template DomainEvents - The type of domain-specific events encoded by the performance observer sink | ||
| * @template Tracks - Record type defining available track names and their configurations | ||
| */ | ||
| export class NodejsProfiler extends Profiler { | ||
| #sink; | ||
| #performanceObserverSink; | ||
| #state = 'idle'; | ||
| #debug; | ||
| #unsubscribeExitHandlers; | ||
| /** | ||
| * Creates a NodejsProfiler instance. | ||
| * A WriteAheadLogFile sink is automatically created for buffering performance data. | ||
| * @param options - Configuration options | ||
| */ | ||
| // eslint-disable-next-line max-lines-per-function | ||
| constructor(options) { | ||
| const { encodePerfEntry, captureBufferedEntries, flushThreshold, maxQueueSize, enabled, filename, debugEnvVar = PROFILER_DEBUG_ENV_VAR, ...profilerOptions } = options; | ||
| const initialEnabled = enabled ?? isEnvVarEnabled(PROFILER_ENABLED_ENV_VAR); | ||
| super({ ...profilerOptions, enabled: initialEnabled }); | ||
| const walFormat = traceEventWalFormat(); | ||
| this.#sink = new WriteAheadLogFile({ | ||
| file: filename ?? | ||
| path.join(process.cwd(), getShardedPath({ | ||
| dir: 'tmp/profiles', | ||
| groupId: getShardedGroupId(), | ||
| shardId: getShardId(), | ||
| format: walFormat, | ||
| })), | ||
| codec: walFormat.codec, | ||
| }); | ||
| this.#debug = isEnvVarEnabled(debugEnvVar); | ||
| this.#performanceObserverSink = new PerformanceObserverSink({ | ||
| sink: this.#sink, | ||
| encodePerfEntry, | ||
| captureBufferedEntries, | ||
| flushThreshold, | ||
| maxQueueSize, | ||
| debugEnvVar, | ||
| }); | ||
| this.#unsubscribeExitHandlers = subscribeProcessExit({ | ||
| onError: (error, kind) => { | ||
| this.#handleFatalError(error, kind); | ||
| }, | ||
| onExit: (_code) => { | ||
| this.close(); | ||
| }, | ||
| }); | ||
| if (initialEnabled) { | ||
| this.#transition('running'); | ||
| } | ||
| } | ||
| /** | ||
| * Returns whether debug mode is enabled for profiler state transitions. | ||
| * | ||
| * Debug mode is initially determined by the environment variable specified by `debugEnvVar` | ||
| * (defaults to 'CP_PROFILER_DEBUG') during construction, but can be changed at runtime | ||
| * using {@link setDebugMode}. When enabled, profiler state transitions create | ||
| * performance marks for debugging. | ||
| * | ||
| * @returns true if debug mode is enabled, false otherwise | ||
| */ | ||
| get debug() { | ||
| return this.#debug; | ||
| } | ||
| /** | ||
| * Sets debug mode for profiler state transitions. | ||
| * | ||
| * When debug mode is enabled, profiler state transitions create performance marks | ||
| * for debugging. This allows runtime control of debug mode without needing to | ||
| * restart the application or change environment variables. | ||
| * | ||
| * @param enabled - Whether to enable debug mode | ||
| */ | ||
| setDebugMode(enabled) { | ||
| this.#debug = enabled; | ||
| } | ||
| /** | ||
| * Creates a performance marker for a profiler state transition. | ||
| * @param transition - The state transition that occurred | ||
| */ | ||
| #transitionMarker(transition) { | ||
| const transitionMarkerPayload = { | ||
| dataType: 'marker', | ||
| color: 'primary', | ||
| tooltipText: `Profiler state transition: ${transition}`, | ||
| properties: [['Transition', transition], ...objectToEntries(this.stats)], | ||
| }; | ||
| this.marker(transition, transitionMarkerPayload); | ||
| } | ||
| /** | ||
| * Handles fatal errors by marking them and shutting down the profiler. | ||
| * @param error - The error that occurred | ||
| * @param kind - The kind of fatal error (uncaughtException or unhandledRejection) | ||
| */ | ||
| #handleFatalError(error, kind) { | ||
| this.marker('Fatal Error', errorToMarkerPayload(error, { | ||
| tooltipText: `${kind} caused fatal error`, | ||
| })); | ||
| this.close(); // Ensures buffers flush and sink finalizes | ||
| } | ||
| /** | ||
| * Transitions the profiler to a new state, performing necessary setup/teardown operations. | ||
| * | ||
| * State transitions enforce lifecycle invariants: | ||
| * - `idle -> running`: Enables profiling, opens sink, and subscribes to performance observer | ||
| * - `running -> idle`: Disables profiling, unsubscribes, and closes sink (sink will be reopened on re-enable) | ||
| * - `running -> closed`: Disables profiling, unsubscribes, and closes sink (irreversible) | ||
| * - `idle -> closed`: Closes sink if it was opened (irreversible) | ||
| * | ||
| * @param next - The target state to transition to | ||
| * @throws {Error} If attempting to transition from 'closed' state or invalid transition | ||
| */ | ||
| #transition(next) { | ||
| if (this.#state === next) { | ||
| return; | ||
| } | ||
| if (this.#state === 'closed') { | ||
| throw new Error('Profiler already closed'); | ||
| } | ||
| const transition = `${this.#state}->${next}`; | ||
| switch (transition) { | ||
| case 'idle->running': | ||
| super.setEnabled(true); | ||
| this.#sink.open?.(); | ||
| this.#performanceObserverSink.subscribe(); | ||
| break; | ||
| case 'running->idle': | ||
| case 'running->closed': | ||
| super.setEnabled(false); | ||
| this.#performanceObserverSink.unsubscribe(); | ||
| this.#sink.close?.(); | ||
| break; | ||
| case 'idle->closed': | ||
| // Sink may have been opened before, close it | ||
| this.#sink.close?.(); | ||
| break; | ||
| default: | ||
| throw new Error(`Invalid transition: ${this.#state} -> ${next}`); | ||
| } | ||
| this.#state = next; | ||
| if (this.#debug) { | ||
| this.#transitionMarker(transition); | ||
| } | ||
| } | ||
| /** | ||
| * Closes profiler and releases resources. Idempotent, safe for exit handlers. | ||
| * **Exit Handler Usage**: Call only this method from process exit handlers. | ||
| */ | ||
| close() { | ||
| if (this.#state === 'closed') { | ||
| return; | ||
| } | ||
| this.#unsubscribeExitHandlers?.(); | ||
| this.#transition('closed'); | ||
| } | ||
| /** @returns Current profiler state */ | ||
| get state() { | ||
| return this.#state; | ||
| } | ||
| /** @returns Whether profiler is in 'running' state */ | ||
| isEnabled() { | ||
| return this.#state === 'running'; | ||
| } | ||
| /** Enables profiling (start/stop) */ | ||
| setEnabled(enabled) { | ||
| if (enabled) { | ||
| this.#transition('running'); | ||
| } | ||
| else { | ||
| this.#transition('idle'); | ||
| } | ||
| } | ||
| /** @returns Queue statistics and profiling state for monitoring */ | ||
| get stats() { | ||
| return { | ||
| ...this.#performanceObserverSink.getStats(), | ||
| debug: this.#debug, | ||
| state: this.#state, | ||
| walOpen: !this.#sink.isClosed(), | ||
| }; | ||
| } | ||
| /** Flushes buffered performance data to sink. */ | ||
| flush() { | ||
| if (this.#state === 'closed') { | ||
| return; // No-op if closed | ||
| } | ||
| this.#performanceObserverSink.flush(); | ||
| } | ||
| /** @returns The file path of the WriteAheadLogFile sink */ | ||
| get filePath() { | ||
| return this.#sink.getPath(); | ||
| } | ||
| } | ||
| //# sourceMappingURL=profiler-node.js.map |
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+2
-2
| { | ||
| "name": "@code-pushup/utils", | ||
| "version": "0.111.0", | ||
| "version": "0.111.1", | ||
| "description": "Low-level utilities (helper functions, etc.) used by Code PushUp CLI", | ||
@@ -30,3 +30,3 @@ "license": "MIT", | ||
| "dependencies": { | ||
| "@code-pushup/models": "0.111.0", | ||
| "@code-pushup/models": "0.111.1", | ||
| "ansis": "^3.3.0", | ||
@@ -33,0 +33,0 @@ "build-md": "^0.4.2", |
@@ -21,2 +21,12 @@ export declare const SIGNAL_EXIT_CODES: () => Record<SignalName, number>; | ||
| }; | ||
| export declare function installExitHandlers(options?: ExitHandlerOptions): void; | ||
| /** | ||
| * | ||
| * @param options - Options for the exit handler | ||
| * @param options.onExit - Callback to be called when the process exits | ||
| * @param options.onError - Callback to be called when an error occurs | ||
| * @param options.exitOnFatal - Whether to exit the process on fatal errors | ||
| * @param options.exitOnSignal - Whether to exit the process on signals | ||
| * @param options.fatalExitCode - The exit code to use for fatal errors | ||
| * @returns A function to unsubscribe from the exit handlers | ||
| */ | ||
| export declare function subscribeProcessExit(options?: ExitHandlerOptions): () => void; |
+35
-11
@@ -19,3 +19,14 @@ import os from 'node:os'; | ||
| export const DEFAULT_FATAL_EXIT_CODE = 1; | ||
| export function installExitHandlers(options = {}) { | ||
| /** | ||
| * | ||
| * @param options - Options for the exit handler | ||
| * @param options.onExit - Callback to be called when the process exits | ||
| * @param options.onError - Callback to be called when an error occurs | ||
| * @param options.exitOnFatal - Whether to exit the process on fatal errors | ||
| * @param options.exitOnSignal - Whether to exit the process on signals | ||
| * @param options.fatalExitCode - The exit code to use for fatal errors | ||
| * @returns A function to unsubscribe from the exit handlers | ||
| */ | ||
| // eslint-disable-next-line max-lines-per-function | ||
| export function subscribeProcessExit(options = {}) { | ||
| // eslint-disable-next-line functional/no-let | ||
@@ -31,3 +42,3 @@ let closedReason; | ||
| }; | ||
| process.on('uncaughtException', err => { | ||
| const uncaughtExceptionHandler = (err) => { | ||
| onError?.(err, 'uncaughtException'); | ||
@@ -40,4 +51,4 @@ if (exitOnFatal) { | ||
| } | ||
| }); | ||
| process.on('unhandledRejection', reason => { | ||
| }; | ||
| const unhandledRejectionHandler = (reason) => { | ||
| onError?.(reason, 'unhandledRejection'); | ||
@@ -50,13 +61,15 @@ if (exitOnFatal) { | ||
| } | ||
| }); | ||
| ['SIGINT', 'SIGTERM', 'SIGQUIT'].forEach(signal => { | ||
| process.on(signal, () => { | ||
| }; | ||
| const signalHandlers = ['SIGINT', 'SIGTERM', 'SIGQUIT'].map(signal => { | ||
| const handler = () => { | ||
| close(SIGNAL_EXIT_CODES()[signal], { kind: 'signal', signal }); | ||
| if (exitOnSignal) { | ||
| // eslint-disable-next-line n/no-process-exit | ||
| // eslint-disable-next-line unicorn/no-process-exit,n/no-process-exit | ||
| process.exit(SIGNAL_EXIT_CODES()[signal]); | ||
| } | ||
| }); | ||
| }; | ||
| process.on(signal, handler); | ||
| return { signal, handler }; | ||
| }); | ||
| process.on('exit', code => { | ||
| const exitHandler = (code) => { | ||
| if (closedReason) { | ||
@@ -66,4 +79,15 @@ return; | ||
| close(code, { kind: 'exit' }); | ||
| }); | ||
| }; | ||
| process.on('uncaughtException', uncaughtExceptionHandler); | ||
| process.on('unhandledRejection', unhandledRejectionHandler); | ||
| process.on('exit', exitHandler); | ||
| return () => { | ||
| process.removeListener('uncaughtException', uncaughtExceptionHandler); | ||
| process.removeListener('unhandledRejection', unhandledRejectionHandler); | ||
| process.removeListener('exit', exitHandler); | ||
| signalHandlers.forEach(({ signal, handler }) => { | ||
| process.removeListener(signal, handler); | ||
| }); | ||
| }; | ||
| } | ||
| //# sourceMappingURL=exit-process.js.map |
@@ -1,1 +0,1 @@ | ||
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| {"version":3,"file":"exit-process.js","sourceRoot":"","sources":["../../../src/lib/exit-process.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,MAAM,SAAS,CAAC;AACzB,OAAO,OAAO,MAAM,cAAc,CAAC;AAEnC,6DAA6D;AAC7D,uOAAuO;AACvO,MAAM,4BAA4B,GAAG,GAAG,CAAC;AACzC,MAAM,kBAAkB,GAAG,CAAC,YAAoB,EAAE,EAAE,CAClD,4BAA4B,GAAG,YAAY,CAAC;AAE9C,MAAM,WAAW,GAAG,CAAC,CAAC;AACtB,MAAM,YAAY,GAAG,EAAE,CAAC;AACxB,MAAM,YAAY,GAAG,CAAC,CAAC;AAEvB,MAAM,CAAC,MAAM,iBAAiB,GAAG,GAA+B,EAAE;IAChE,MAAM,gBAAgB,GAAG,EAAE,CAAC,QAAQ,EAAE,KAAK,OAAO,CAAC;IACnD,OAAO;QACL,MAAM,EAAE,gBAAgB,CAAC,CAAC,CAAC,WAAW,CAAC,CAAC,CAAC,kBAAkB,CAAC,WAAW,CAAC;QACxE,OAAO,EAAE,kBAAkB,CAAC,YAAY,CAAC;QACzC,OAAO,EAAE,kBAAkB,CAAC,YAAY,CAAC;KAC1C,CAAC;AACJ,CAAC,CAAC;AAEF,MAAM,CAAC,MAAM,uBAAuB,GAAG,CAAC,CAAC;AAkBzC;;;;;;;;;GASG;AACH,kDAAkD;AAClD,MAAM,UAAU,oBAAoB,CAClC,UAA8B,EAAE;IAEhC,6CAA6C;IAC7C,IAAI,YAAqC,CAAC;IAC1C,MAAM,EACJ,MAAM,EACN,OAAO,EACP,WAAW,GAAG,KAAK,EACnB,YAAY,GAAG,KAAK,EACpB,aAAa,GAAG,uBAAuB,GACxC,GAAG,OAAO,CAAC;IAEZ,MAAM,KAAK,GAAG,CAAC,IAAY,EAAE,MAAmB,EAAE,EAAE;QAClD,IAAI,YAAY,EAAE,CAAC;YACjB,OAAO;QACT,CAAC;QACD,YAAY,GAAG,MAAM,CAAC;QACtB,MAAM,EAAE,CAAC,IAAI,EAAE,MAAM,CAAC,CAAC;IACzB,CAAC,CAAC;IAEF,MAAM,wBAAwB,GAAG,CAAC,GAAY,EAAE,EAAE;QAChD,OAAO,EAAE,CAAC,GAAG,EAAE,mBAAmB,CAAC,CAAC;QACpC,IAAI,WAAW,EAAE,CAAC;YAChB,KAAK,CAAC,aAAa,EAAE;gBACnB,IAAI,EAAE,OAAO;gBACb,KAAK,EAAE,mBAAmB;aAC3B,CAAC,CAAC;QACL,CAAC;IACH,CAAC,CAAC;IAEF,MAAM,yBAAyB,GAAG,CAAC,MAAe,EAAE,EAAE;QACpD,OAAO,EAAE,CAAC,MAAM,EAAE,oBAAoB,CAAC,CAAC;QACxC,IAAI,WAAW,EAAE,CAAC;YAChB,KAAK,CAAC,aAAa,EAAE;gBACnB,IAAI,EAAE,OAAO;gBACb,KAAK,EAAE,oBAAoB;aAC5B,CAAC,CAAC;QACL,CAAC;IACH,CAAC,CAAC;IAEF,MAAM,cAAc,GAAI,CAAC,QAAQ,EAAE,SAAS,EAAE,SAAS,CAAW,CAAC,GAAG,CACpE,MAAM,CAAC,EAAE;QACP,MAAM,OAAO,GAAG,GAAG,EAAE;YACnB,KAAK,CAAC,iBAAiB,EAAE,CAAC,MAAM,CAAC,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,MAAM,EAAE,CAAC,CAAC;YAC/D,IAAI,YAAY,EAAE,CAAC;gBACjB,qEAAqE;gBACrE,OAAO,CAAC,IAAI,CAAC,iBAAiB,EAAE,CAAC,MAAM,CAAC,CAAC,CAAC;YAC5C,CAAC;QACH,CAAC,CAAC;QACF,OAAO,CAAC,EAAE,CAAC,MAAM,EAAE,OAAO,CAAC,CAAC;QAC5B,OAAO,EAAE,MAAM,EAAE,OAAO,EAAE,CAAC;IAC7B,CAAC,CACF,CAAC;IAEF,MAAM,WAAW,GAAG,CAAC,IAAY,EAAE,EAAE;QACnC,IAAI,YAAY,EAAE,CAAC;YACjB,OAAO;QACT,CAAC;QACD,KAAK,CAAC,IAAI,EAAE,EAAE,IAAI,EAAE,MAAM,EAAE,CAAC,CAAC;IAChC,CAAC,CAAC;IAEF,OAAO,CAAC,EAAE,CAAC,mBAAmB,EAAE,wBAAwB,CAAC,CAAC;IAC1D,OAAO,CAAC,EAAE,CAAC,oBAAoB,EAAE,yBAAyB,CAAC,CAAC;IAC5D,OAAO,CAAC,EAAE,CAAC,MAAM,EAAE,WAAW,CAAC,CAAC;IAEhC,OAAO,GAAG,EAAE;QACV,OAAO,CAAC,cAAc,CAAC,mBAAmB,EAAE,wBAAwB,CAAC,CAAC;QACtE,OAAO,CAAC,cAAc,CAAC,oBAAoB,EAAE,yBAAyB,CAAC,CAAC;QACxE,OAAO,CAAC,cAAc,CAAC,MAAM,EAAE,WAAW,CAAC,CAAC;QAC5C,cAAc,CAAC,OAAO,CAAC,CAAC,EAAE,MAAM,EAAE,OAAO,EAAE,EAAE,EAAE;YAC7C,OAAO,CAAC,cAAc,CAAC,MAAM,EAAE,OAAO,CAAC,CAAC;QAC1C,CAAC,CAAC,CAAC;IACL,CAAC,CAAC;AACJ,CAAC"} |
@@ -6,5 +6,3 @@ /** | ||
| * @example | ||
| * ```bash | ||
| * CP_PROFILING=true npm run dev | ||
| * ``` | ||
| */ | ||
@@ -17,6 +15,12 @@ export declare const PROFILER_ENABLED_ENV_VAR = "CP_PROFILING"; | ||
| * @example | ||
| * ```bash | ||
| * CP_PROFILER_DEBUG=true npm run dev | ||
| * ``` | ||
| */ | ||
| export declare const PROFILER_DEBUG_ENV_VAR = "CP_PROFILER_DEBUG"; | ||
| /** | ||
| * Environment variable name for setting the Sharded WAL Coordinator ID. | ||
| * This ID is used to identify the coordinator instance in a sharded Write-Ahead Logging setup. | ||
| * | ||
| * @example | ||
| * CP_SHARDED_WAL_COORDINATOR_ID=coordinator-1 npm run dev | ||
| */ | ||
| export declare const SHARDED_WAL_COORDINATOR_ID_ENV_VAR = "CP_SHARDED_WAL_COORDINATOR_ID"; |
@@ -6,5 +6,3 @@ /** | ||
| * @example | ||
| * ```bash | ||
| * CP_PROFILING=true npm run dev | ||
| * ``` | ||
| */ | ||
@@ -17,7 +15,13 @@ export const PROFILER_ENABLED_ENV_VAR = 'CP_PROFILING'; | ||
| * @example | ||
| * ```bash | ||
| * CP_PROFILER_DEBUG=true npm run dev | ||
| * ``` | ||
| */ | ||
| export const PROFILER_DEBUG_ENV_VAR = 'CP_PROFILER_DEBUG'; | ||
| /** | ||
| * Environment variable name for setting the Sharded WAL Coordinator ID. | ||
| * This ID is used to identify the coordinator instance in a sharded Write-Ahead Logging setup. | ||
| * | ||
| * @example | ||
| * CP_SHARDED_WAL_COORDINATOR_ID=coordinator-1 npm run dev | ||
| */ | ||
| export const SHARDED_WAL_COORDINATOR_ID_ENV_VAR = 'CP_SHARDED_WAL_COORDINATOR_ID'; | ||
| //# sourceMappingURL=constants.js.map |
@@ -1,1 +0,1 @@ | ||
| {"version":3,"file":"constants.js","sourceRoot":"","sources":["../../../../src/lib/profiler/constants.ts"],"names":[],"mappings":"AAAA;;;;;;;;GAQG;AACH,MAAM,CAAC,MAAM,wBAAwB,GAAG,cAAc,CAAC;AAEvD;;;;;;;;GAQG;AACH,MAAM,CAAC,MAAM,sBAAsB,GAAG,mBAAmB,CAAC"} | ||
| {"version":3,"file":"constants.js","sourceRoot":"","sources":["../../../../src/lib/profiler/constants.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AACH,MAAM,CAAC,MAAM,wBAAwB,GAAG,cAAc,CAAC;AAEvD;;;;;;GAMG;AACH,MAAM,CAAC,MAAM,sBAAsB,GAAG,mBAAmB,CAAC;AAE1D;;;;;;GAMG;AACH,MAAM,CAAC,MAAM,kCAAkC,GAC7C,+BAA+B,CAAC"} |
@@ -1,5 +0,3 @@ | ||
| import { type PerformanceObserverOptions } from '../performance-observer.js'; | ||
| import { type ActionTrackConfigs, type MeasureCtxOptions, type MeasureOptions } from '../user-timing-extensibility-api-utils.js'; | ||
| import type { ActionTrackEntryPayload, DevToolsColor, EntryMeta } from '../user-timing-extensibility-api.type.js'; | ||
| import type { AppendableSink } from '../wal.js'; | ||
| /** | ||
@@ -142,82 +140,2 @@ * Generates a unique profiler ID based on performance time origin, process ID, thread ID, and instance count. | ||
| } | ||
| /** | ||
| * Options for configuring a NodejsProfiler instance. | ||
| * | ||
| * Extends ProfilerOptions with a required sink parameter. | ||
| * | ||
| * @template Tracks - Record type defining available track names and their configurations | ||
| */ | ||
| export type NodejsProfilerOptions<DomainEvents, Tracks extends Record<string, ActionTrackEntryPayload>> = ProfilerOptions<Tracks> & Omit<PerformanceObserverOptions<DomainEvents>, 'sink'> & { | ||
| /** | ||
| * Sink for buffering and flushing performance data | ||
| */ | ||
| sink: AppendableSink<DomainEvents>; | ||
| /** | ||
| * Name of the environment variable to check for debug mode. | ||
| * When the env var is set to 'true', profiler state transitions create performance marks for debugging. | ||
| * | ||
| * @default 'CP_PROFILER_DEBUG' | ||
| */ | ||
| debugEnvVar?: string; | ||
| }; | ||
| /** | ||
| * Performance profiler with automatic process exit handling for buffered performance data. | ||
| * | ||
| * This class extends the base {@link Profiler} with automatic flushing of performance data | ||
| * when the process exits. It accepts a {@link PerformanceObserverSink} that buffers performance | ||
| * entries and ensures they are written out during process termination, even for unexpected exits. | ||
| * | ||
| * The sink defines the output format for performance data, enabling flexible serialization | ||
| * to various formats such as DevTools TraceEvent JSON, OpenTelemetry protocol buffers, | ||
| * or custom domain-specific formats. | ||
| * | ||
| * The profiler automatically subscribes to the performance observer when enabled and installs | ||
| * exit handlers that flush buffered data on process termination (signals, fatal errors, or normal exit). | ||
| * | ||
| */ | ||
| export declare class NodejsProfiler<DomainEvents, Tracks extends Record<string, ActionTrackEntryPayload> = Record<string, ActionTrackEntryPayload>> extends Profiler<Tracks> { | ||
| #private; | ||
| /** | ||
| * Creates a NodejsProfiler instance. | ||
| * @param options - Configuration with required sink | ||
| */ | ||
| constructor(options: NodejsProfilerOptions<DomainEvents, Tracks>); | ||
| /** | ||
| * Returns whether debug mode is enabled for profiler state transitions. | ||
| * | ||
| * Debug mode is determined by the environment variable specified by `debugEnvVar` | ||
| * (defaults to 'CP_PROFILER_DEBUG'). When enabled, profiler state transitions create | ||
| * performance marks for debugging. | ||
| * | ||
| * @returns true if debug mode is enabled, false otherwise | ||
| */ | ||
| get debug(): boolean; | ||
| /** | ||
| * Closes profiler and releases resources. Idempotent, safe for exit handlers. | ||
| * **Exit Handler Usage**: Call only this method from process exit handlers. | ||
| */ | ||
| close(): void; | ||
| /** @returns Current profiler state */ | ||
| get state(): 'idle' | 'running' | 'closed'; | ||
| /** @returns Whether profiler is in 'running' state */ | ||
| isEnabled(): boolean; | ||
| /** Enables profiling (start/stop) */ | ||
| setEnabled(enabled: boolean): void; | ||
| /** @returns Queue statistics and profiling state for monitoring */ | ||
| get stats(): { | ||
| debug: boolean; | ||
| state: "idle" | "running" | "closed"; | ||
| walOpen: boolean; | ||
| isSubscribed: boolean; | ||
| queued: number; | ||
| dropped: number; | ||
| written: number; | ||
| maxQueueSize: number; | ||
| flushThreshold: number; | ||
| addedSinceLastFlush: number; | ||
| buffered: boolean; | ||
| }; | ||
| /** Flushes buffered performance data to sink. */ | ||
| flush(): void; | ||
| } | ||
| export {}; |
@@ -5,6 +5,4 @@ import { performance } from 'node:perf_hooks'; | ||
| import { isEnvVarEnabled } from '../env.js'; | ||
| import { PerformanceObserverSink, } from '../performance-observer.js'; | ||
| import { objectToEntries } from '../transform.js'; | ||
| import { asOptions, markerPayload, measureCtx, setupTracks, } from '../user-timing-extensibility-api-utils.js'; | ||
| import { PROFILER_DEBUG_ENV_VAR, PROFILER_ENABLED_ENV_VAR, } from './constants.js'; | ||
| import { PROFILER_ENABLED_ENV_VAR } from './constants.js'; | ||
| /** | ||
@@ -177,141 +175,2 @@ * Generates a unique profiler ID based on performance time origin, process ID, thread ID, and instance count. | ||
| } | ||
| /** | ||
| * Performance profiler with automatic process exit handling for buffered performance data. | ||
| * | ||
| * This class extends the base {@link Profiler} with automatic flushing of performance data | ||
| * when the process exits. It accepts a {@link PerformanceObserverSink} that buffers performance | ||
| * entries and ensures they are written out during process termination, even for unexpected exits. | ||
| * | ||
| * The sink defines the output format for performance data, enabling flexible serialization | ||
| * to various formats such as DevTools TraceEvent JSON, OpenTelemetry protocol buffers, | ||
| * or custom domain-specific formats. | ||
| * | ||
| * The profiler automatically subscribes to the performance observer when enabled and installs | ||
| * exit handlers that flush buffered data on process termination (signals, fatal errors, or normal exit). | ||
| * | ||
| */ | ||
| export class NodejsProfiler extends Profiler { | ||
| #sink; | ||
| #performanceObserverSink; | ||
| #state = 'idle'; | ||
| #debug; | ||
| /** | ||
| * Creates a NodejsProfiler instance. | ||
| * @param options - Configuration with required sink | ||
| */ | ||
| constructor(options) { | ||
| const { sink, encodePerfEntry, captureBufferedEntries, flushThreshold, maxQueueSize, enabled, debugEnvVar = PROFILER_DEBUG_ENV_VAR, ...profilerOptions } = options; | ||
| const initialEnabled = enabled ?? isEnvVarEnabled(PROFILER_ENABLED_ENV_VAR); | ||
| super({ ...profilerOptions, enabled: initialEnabled }); | ||
| this.#sink = sink; | ||
| this.#debug = isEnvVarEnabled(debugEnvVar); | ||
| this.#performanceObserverSink = new PerformanceObserverSink({ | ||
| sink, | ||
| encodePerfEntry, | ||
| captureBufferedEntries, | ||
| flushThreshold, | ||
| maxQueueSize, | ||
| debugEnvVar, | ||
| }); | ||
| if (initialEnabled) { | ||
| this.#transition('running'); | ||
| } | ||
| } | ||
| /** | ||
| * Returns whether debug mode is enabled for profiler state transitions. | ||
| * | ||
| * Debug mode is determined by the environment variable specified by `debugEnvVar` | ||
| * (defaults to 'CP_PROFILER_DEBUG'). When enabled, profiler state transitions create | ||
| * performance marks for debugging. | ||
| * | ||
| * @returns true if debug mode is enabled, false otherwise | ||
| */ | ||
| get debug() { | ||
| return this.#debug; | ||
| } | ||
| /** | ||
| * Creates a performance marker for a profiler state transition. | ||
| * @param transition - The state transition that occurred | ||
| */ | ||
| #transitionMarker(transition) { | ||
| const transitionMarkerPayload = { | ||
| dataType: 'marker', | ||
| color: 'primary', | ||
| tooltipText: `Profiler state transition: ${transition}`, | ||
| properties: [['Transition', transition], ...objectToEntries(this.stats)], | ||
| }; | ||
| this.marker(transition, transitionMarkerPayload); | ||
| } | ||
| #transition(next) { | ||
| if (this.#state === next) { | ||
| return; | ||
| } | ||
| if (this.#state === 'closed') { | ||
| throw new Error('Profiler already closed'); | ||
| } | ||
| const transition = `${this.#state}->${next}`; | ||
| switch (transition) { | ||
| case 'idle->running': | ||
| super.setEnabled(true); | ||
| this.#sink.open?.(); | ||
| this.#performanceObserverSink.subscribe(); | ||
| break; | ||
| case 'running->idle': | ||
| case 'running->closed': | ||
| super.setEnabled(false); | ||
| this.#performanceObserverSink.unsubscribe(); | ||
| this.#sink.close?.(); | ||
| break; | ||
| case 'idle->closed': | ||
| // No-op, was not open | ||
| break; | ||
| default: | ||
| throw new Error(`Invalid transition: ${this.#state} -> ${next}`); | ||
| } | ||
| this.#state = next; | ||
| if (this.#debug) { | ||
| this.#transitionMarker(transition); | ||
| } | ||
| } | ||
| /** | ||
| * Closes profiler and releases resources. Idempotent, safe for exit handlers. | ||
| * **Exit Handler Usage**: Call only this method from process exit handlers. | ||
| */ | ||
| close() { | ||
| this.#transition('closed'); | ||
| } | ||
| /** @returns Current profiler state */ | ||
| get state() { | ||
| return this.#state; | ||
| } | ||
| /** @returns Whether profiler is in 'running' state */ | ||
| isEnabled() { | ||
| return this.#state === 'running'; | ||
| } | ||
| /** Enables profiling (start/stop) */ | ||
| setEnabled(enabled) { | ||
| if (enabled) { | ||
| this.#transition('running'); | ||
| } | ||
| else { | ||
| this.#transition('idle'); | ||
| } | ||
| } | ||
| /** @returns Queue statistics and profiling state for monitoring */ | ||
| get stats() { | ||
| return { | ||
| ...this.#performanceObserverSink.getStats(), | ||
| debug: this.#debug, | ||
| state: this.#state, | ||
| walOpen: !this.#sink.isClosed(), | ||
| }; | ||
| } | ||
| /** Flushes buffered performance data to sink. */ | ||
| flush() { | ||
| if (this.#state === 'closed') { | ||
| return; // No-op if closed | ||
| } | ||
| this.#performanceObserverSink.flush(); | ||
| } | ||
| } | ||
| //# sourceMappingURL=profiler.js.map |
@@ -1,1 +0,1 @@ | ||
| 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| ||
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+18
-2
@@ -164,3 +164,3 @@ /** | ||
| */ | ||
| export declare function isLeaderWal(envVarName: string, profilerID: string): boolean; | ||
| export declare function isCoordinatorProcess(envVarName: string, profilerID: string): boolean; | ||
| /** | ||
@@ -171,3 +171,3 @@ * Initialize the origin PID environment variable if not already set. | ||
| */ | ||
| export declare function setLeaderWal(envVarName: string, profilerID: string): void; | ||
| export declare function setCoordinatorProcess(envVarName: string, profilerID: string): void; | ||
| /** | ||
@@ -231,5 +231,11 @@ * Generates a human-readable shard ID. | ||
| #private; | ||
| static instanceCount: number; | ||
| readonly groupId: string; | ||
| /** | ||
| * Create a sharded WAL manager. | ||
| * | ||
| * @param opt.dir - Base directory to store shard files (defaults to process.cwd()) | ||
| * @param opt.format - WAL format configuration | ||
| * @param opt.groupId - Group ID for sharding (defaults to generated group ID) | ||
| * @param opt.coordinatorIdEnvVar - Environment variable name for storing coordinator ID (defaults to CP_SHARDED_WAL_COORDINATOR_ID) | ||
| */ | ||
@@ -240,3 +246,13 @@ constructor(opt: { | ||
| groupId?: string; | ||
| coordinatorIdEnvVar: string; | ||
| }); | ||
| /** | ||
| * Is this instance the coordinator? | ||
| * | ||
| * Coordinator status is determined from the coordinatorIdEnvVar environment variable. | ||
| * The coordinator handles finalization and cleanup of shard files. | ||
| * | ||
| * @returns true if this instance is the coordinator, false otherwise | ||
| */ | ||
| isCoordinator(): boolean; | ||
| shard(shardId?: string): WriteAheadLogFile<T>; | ||
@@ -243,0 +259,0 @@ /** Get all shard file paths matching this WAL's base name */ |
+30
-3
@@ -219,3 +219,3 @@ /* eslint-disable max-lines */ | ||
| */ | ||
| export function isLeaderWal(envVarName, profilerID) { | ||
| export function isCoordinatorProcess(envVarName, profilerID) { | ||
| return process.env[envVarName] === profilerID; | ||
@@ -228,3 +228,3 @@ } | ||
| */ | ||
| export function setLeaderWal(envVarName, profilerID) { | ||
| export function setCoordinatorProcess(envVarName, profilerID) { | ||
| if (!process.env[envVarName]) { | ||
@@ -238,2 +238,9 @@ // eslint-disable-next-line functional/immutable-data | ||
| /** | ||
| * Generates a unique sharded WAL ID based on performance time origin, process ID, thread ID, and instance count. | ||
| */ | ||
| function getShardedWalId() { | ||
| // eslint-disable-next-line functional/immutable-data | ||
| return `${Math.round(performance.timeOrigin)}.${process.pid}.${threadId}.${++ShardedWal.instanceCount}`; | ||
| } | ||
| /** | ||
| * Generates a human-readable shard ID. | ||
@@ -322,10 +329,18 @@ * This ID is unique per process/thread/shard combination and used in the file name. | ||
| export class ShardedWal { | ||
| static instanceCount = 0; | ||
| #id = getShardedWalId(); | ||
| groupId = getShardedGroupId(); | ||
| #format; | ||
| #dir = process.cwd(); | ||
| #isCoordinator; | ||
| /** | ||
| * Create a sharded WAL manager. | ||
| * | ||
| * @param opt.dir - Base directory to store shard files (defaults to process.cwd()) | ||
| * @param opt.format - WAL format configuration | ||
| * @param opt.groupId - Group ID for sharding (defaults to generated group ID) | ||
| * @param opt.coordinatorIdEnvVar - Environment variable name for storing coordinator ID (defaults to CP_SHARDED_WAL_COORDINATOR_ID) | ||
| */ | ||
| constructor(opt) { | ||
| const { dir, format, groupId } = opt; | ||
| const { dir, format, groupId, coordinatorIdEnvVar } = opt; | ||
| this.groupId = groupId ?? getShardedGroupId(); | ||
@@ -336,3 +351,15 @@ if (dir) { | ||
| this.#format = parseWalFormat(format); | ||
| this.#isCoordinator = isCoordinatorProcess(coordinatorIdEnvVar, this.#id); | ||
| } | ||
| /** | ||
| * Is this instance the coordinator? | ||
| * | ||
| * Coordinator status is determined from the coordinatorIdEnvVar environment variable. | ||
| * The coordinator handles finalization and cleanup of shard files. | ||
| * | ||
| * @returns true if this instance is the coordinator, false otherwise | ||
| */ | ||
| isCoordinator() { | ||
| return this.#isCoordinator; | ||
| } | ||
| shard(shardId = getShardId()) { | ||
@@ -339,0 +366,0 @@ return new WriteAheadLogFile({ |
@@ -1,1 +0,1 @@ | ||
| 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|
Network access
Supply chain riskThis module accesses the network.
Found 1 instance in 1 package
Environment variable access
Supply chain riskPackage accesses environment variables, which may be a sign of credential stuffing or data theft.
Found 12 instances in 1 package
Long strings
Supply chain riskContains long string literals, which may be a sign of obfuscated or packed code.
Found 1 instance in 1 package
Network access
Supply chain riskThis module accesses the network.
Found 1 instance in 1 package
Environment variable access
Supply chain riskPackage accesses environment variables, which may be a sign of credential stuffing or data theft.
Found 12 instances in 1 package
Long strings
Supply chain riskContains long string literals, which may be a sign of obfuscated or packed code.
Found 1 instance in 1 package
507486
2.34%194
1.57%8232
2.22%+ Added
- Removed
Updated