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b0b52b2023
PR-URL: https://github.com/nodejs/node/pull/34420 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Myles Borins <myles.borins@gmail.com>
65 lines
2.0 KiB
JavaScript
65 lines
2.0 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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'use strict';
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require('../common');
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const assert = require('assert');
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const fs = require('fs');
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const path = require('path');
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const tmpdir = require('../common/tmpdir');
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tmpdir.refresh();
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const f = path.join(tmpdir.path, 'x.txt');
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fs.closeSync(fs.openSync(f, 'w'));
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let changes = 0;
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function watchFile() {
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fs.watchFile(f, (curr, prev) => {
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// Make sure there is at least one watch event that shows a changed mtime.
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if (curr.mtime <= prev.mtime) {
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return;
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}
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changes++;
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fs.unwatchFile(f);
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watchFile();
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fs.unwatchFile(f);
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});
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}
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watchFile();
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function changeFile() {
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const fd = fs.openSync(f, 'w+');
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fs.writeSync(fd, 'xyz\n');
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fs.closeSync(fd);
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}
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changeFile();
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const interval = setInterval(changeFile, 1000);
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// Use unref() here so fs.watchFile() watcher is the only thing keeping the
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// event loop open.
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interval.unref();
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process.on('exit', function() {
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assert.ok(changes > 0);
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});
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