mirror of https://github.com/nodejs/node.git
52 lines
1.2 KiB
JavaScript
52 lines
1.2 KiB
JavaScript
'use strict';
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const common = require('../common');
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const fs = require('fs');
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const path = require('path');
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const bench = common.createBenchmark(main, {
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n: [100],
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dir: [ 'lib', 'test/parallel'],
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mode: [ 'async', 'sync', 'callback' ]
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});
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async function main({ n, dir, mode }) {
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const fullPath = path.resolve(__dirname, '../../', dir);
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bench.start();
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let counter = 0;
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for (let i = 0; i < n; i++) {
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if (mode === 'async') {
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// eslint-disable-next-line no-unused-vars
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for await (const entry of await fs.promises.opendir(fullPath))
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counter++;
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} else if (mode === 'callback') {
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const dir = await fs.promises.opendir(fullPath);
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await new Promise((resolve, reject) => {
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function read() {
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dir.read((err, entry) => {
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if (err) {
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reject(err);
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} else if (entry === null) {
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resolve(dir.close());
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} else {
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counter++;
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read();
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}
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});
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}
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read();
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});
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} else {
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const dir = fs.opendirSync(fullPath);
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while (dir.readSync() !== null)
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counter++;
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dir.closeSync();
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}
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}
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bench.end(counter);
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}
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