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8ef68e66d0
PR-URL: https://github.com/nodejs/node/pull/28858 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
89 lines
2.5 KiB
JavaScript
89 lines
2.5 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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// Flags: --expose_gc
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require('../common');
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const assert = require('assert');
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const tmpdir = require('../common/tmpdir');
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function newBuffer(size, value) {
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const buffer = Buffer.allocUnsafe(size);
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while (size--) {
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buffer[size] = value;
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}
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buffer[buffer.length - 1] = 0x0a;
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return buffer;
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}
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const fs = require('fs');
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tmpdir.refresh();
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const testFileName = require('path').join(tmpdir.path, 'GH-814_testFile.txt');
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const testFileFD = fs.openSync(testFileName, 'w');
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console.log(testFileName);
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const kBufSize = 128 * 1024;
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let PASS = true;
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const neverWrittenBuffer = newBuffer(kBufSize, 0x2e); // 0x2e === '.'
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const bufPool = [];
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const tail = require('child_process').spawn('tail', ['-f', testFileName]);
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tail.stdout.on('data', tailCB);
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function tailCB(data) {
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PASS = !data.toString().includes('.');
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}
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const timeToQuit = Date.now() + 8e3; // Test during no more than this seconds.
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(function main() {
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if (PASS) {
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fs.write(testFileFD, newBuffer(kBufSize, 0x61), 0, kBufSize, -1, cb);
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global.gc();
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const nuBuf = Buffer.allocUnsafe(kBufSize);
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neverWrittenBuffer.copy(nuBuf);
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if (bufPool.push(nuBuf) > 100) {
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bufPool.length = 0;
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}
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} else {
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throw new Error("Buffer GC'ed test -> FAIL");
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}
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if (Date.now() < timeToQuit) {
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process.nextTick(main);
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} else {
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tail.kill();
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console.log("Buffer GC'ed test -> PASS (OK)");
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}
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})();
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function cb(err, written) {
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assert.ifError(err);
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}
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