Files
react-native/Libraries/WebPerformance/NativePerformanceObserver.js
T
Ruslan Shestopalyuk d8bcab2be7 Implement Performance.measure support for RN (JS side)
Summary:
Changelog: [Internal]

This adds JS side implementation (including the API) for the `Performance.measure` functionality, [as described in the corresponding standard](https://www.w3.org/TR/user-timing/#measure-method).

The JS part is separated from the C++ implementation (further down the stack) to help the review being more focused.

Reviewed By: mdvacca

Differential Revision: D41733190

fbshipit-source-id: 72b69f6bb332aed4b9477a186b0e818b62009220
2022-12-06 17:34:24 -08:00

45 lines
1.1 KiB
JavaScript

/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow strict
* @format
*/
import type {TurboModule} from '../TurboModule/RCTExport';
import * as TurboModuleRegistry from '../TurboModule/TurboModuleRegistry';
export const RawPerformanceEntryTypeValues = {
UNDEFINED: 0,
MARK: 1,
MEASURE: 2,
};
export type RawPerformanceEntryType = number;
export type RawPerformanceEntry = {|
name: string,
entryType: RawPerformanceEntryType,
startTime: number,
duration: number,
// For "event" entries only:
processingStart?: number,
processingEnd?: number,
interactionId?: number,
|};
export interface Spec extends TurboModule {
+startReporting: (entryType: string) => void;
+stopReporting: (entryType: string) => void;
+getPendingEntries: () => $ReadOnlyArray<RawPerformanceEntry>;
+popPendingEntries?: () => $ReadOnlyArray<RawPerformanceEntry>;
+setOnPerformanceEntryCallback: (callback?: () => void) => void;
}
export default (TurboModuleRegistry.get<Spec>(
'NativePerformanceObserverCxx',
): ?Spec);