mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Ruslan Shestopalyuk
581357bc9b
Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/36181 [Changelog][Internal] Implements EventCounts API (`Performance.eventCounts`) for Web Performance, according to the W3C standard, see the specs here: https://www.w3.org/TR/event-timing/#eventcounts The rationale for why we need it is to support some advanced metrics computations, such as a ratio of "slow events" to total event count, per event type. Reviewed By: rubennorte Differential Revision: D43285073 fbshipit-source-id: 2c53d04d9a57c1301e37f2a5879072c8d33efbbf
45 lines
1.2 KiB
JavaScript
45 lines
1.2 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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}
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export default (TurboModuleRegistry.get<Spec>(
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'NativePerformanceObserverCxx',
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): ?Spec);
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