mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Ruslan Shestopalyuk
bc56f66b8d
Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/36314 ## Changelog: [Internal] - Added support for W3C Performance API extension (Performance,getEntries*) See [here for the details](https://www.w3.org/TR/performance-timeline/#extensions-to-the-performance-interface). This only supports `mark` and `measure` performance entry types (not `events`, as those are not supported by browsers either, they recommend using the `PerformanceObserver` API instead). From the implementation perspective, we already maintained persistent buffer for `mark` entry types, which was required in order to look up measures. The buffer is circular, limited to 1K entries by default. I basically mimic the same behavior for `measure` entry types as well, since it's the simplest way of doing it at this point, If we happen to want adding some other entry types that would be available via `Performance.getEntries*` API in the future, we may want to iterate on the internal data structures representation inside `PerformanceEntryReporter`, but for now I believe this approach should work just fine, and whatever changes we may want to do will be purely internal implementation detail. Reviewed By: rubennorte Differential Revision: D43625488 fbshipit-source-id: dd315b3f8488e910749a8e2a4158246e94d76f99
57 lines
1.6 KiB
JavaScript
57 lines
1.6 KiB
JavaScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow strict
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* @format
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*/
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import type {TurboModule} from '../TurboModule/RCTExport';
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import * as TurboModuleRegistry from '../TurboModule/TurboModuleRegistry';
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export type RawPerformanceEntryType = number;
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export type RawPerformanceEntry = {|
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name: string,
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entryType: RawPerformanceEntryType,
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startTime: number,
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duration: number,
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// For "event" entries only:
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processingStart?: number,
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processingEnd?: number,
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interactionId?: number,
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|};
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export type GetPendingEntriesResult = {|
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entries: $ReadOnlyArray<RawPerformanceEntry>,
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droppedEntriesCount: number,
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|};
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export interface Spec extends TurboModule {
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+startReporting: (entryType: RawPerformanceEntryType) => void;
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+stopReporting: (entryType: RawPerformanceEntryType) => void;
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+popPendingEntries: () => GetPendingEntriesResult;
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+setOnPerformanceEntryCallback: (callback?: () => void) => void;
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+logRawEntry: (entry: RawPerformanceEntry) => void;
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+getEventCounts: () => $ReadOnlyArray<[string, number]>;
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+setDurationThreshold: (
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entryType: RawPerformanceEntryType,
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durationThreshold: number,
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) => void;
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+clearEntries: (
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entryType: RawPerformanceEntryType,
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entryName?: string,
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) => void;
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+getEntries: (
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entryType?: RawPerformanceEntryType,
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entryName?: string,
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) => $ReadOnlyArray<RawPerformanceEntry>;
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}
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export default (TurboModuleRegistry.get<Spec>(
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'NativePerformanceObserverCxx',
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): ?Spec);
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