mirror of https://github.com/nodejs/node.git
36 lines
886 B
JavaScript
36 lines
886 B
JavaScript
'use strict';
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const common = require('../common.js');
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const { EventEmitter } = require('events');
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const bench = common.createBenchmark(main, {
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newListener: [0, 1],
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removeListener: [0, 1],
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n: [1e6],
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});
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function main({ newListener, removeListener, n }) {
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const ee = new EventEmitter();
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const listeners = [];
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for (let k = 0; k < 10; k += 1)
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listeners.push(() => {});
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if (newListener === 1)
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ee.on('newListener', (event, listener) => {});
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if (removeListener === 1)
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ee.on('removeListener', (event, listener) => {});
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bench.start();
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for (let i = 0; i < n; i += 1) {
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const dummy = (i % 2 === 0) ? 'dummy0' : 'dummy1';
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for (let k = listeners.length; --k >= 0; /* empty */) {
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ee.on(dummy, listeners[k]);
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}
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for (let k = listeners.length; --k >= 0; /* empty */) {
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ee.removeListener(dummy, listeners[k]);
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}
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}
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bench.end(n);
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}
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