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ff4e782c08
fs.truncateSync() emits a deprecation warning when called with a file descriptor. Move to fs.ftruncateSync(). PR-URL: https://github.com/nodejs/node/pull/38448 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
50 lines
2.0 KiB
JavaScript
50 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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const common = 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 filepath = path.join(tmpdir.path, 'large.txt');
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const fd = fs.openSync(filepath, 'w+');
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const offset = 5 * 1024 * 1024 * 1024; // 5GB
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const message = 'Large File';
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fs.ftruncateSync(fd, offset);
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assert.strictEqual(fs.statSync(filepath).size, offset);
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const writeBuf = Buffer.from(message);
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fs.writeSync(fd, writeBuf, 0, writeBuf.length, offset);
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const readBuf = Buffer.allocUnsafe(writeBuf.length);
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fs.readSync(fd, readBuf, 0, readBuf.length, offset);
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assert.strictEqual(readBuf.toString(), message);
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fs.readSync(fd, readBuf, 0, 1, 0);
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assert.strictEqual(readBuf[0], 0);
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// Verify that floating point positions do not throw.
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fs.writeSync(fd, writeBuf, 0, writeBuf.length, 42.000001);
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fs.close(fd, common.mustCall());
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