react-native/Libraries/Interaction/ReactPerfStallHandler.js

34 lines
767 B
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @providesModule ReactPerfStallHandler
* @flow
*/
'use strict';
const JSEventLoopWatchdog = require('JSEventLoopWatchdog');
const ReactPerf = require('ReactPerf');
const ReactPerfStallHandler = {
register: function() {
ReactPerf.start();
JSEventLoopWatchdog.addHandler({
onStall: () => {
ReactPerf.stop();
ReactPerf.printInclusive();
ReactPerf.printWasted();
ReactPerf.start();
},
onIterate: () => {
ReactPerf.stop();
ReactPerf.start();
},
});
},
};
module.exports = ReactPerfStallHandler;