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buffer: add isSharedArrayBuffer checks

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Fixes: https://github.com/nodejs/node/issues/8440
PR-URL: https://github.com/nodejs/node/pull/8510
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
This commit is contained in:
Ojas Shirekar 2016-09-12 12:03:34 +05:30 • committed by Brian White
parent a89c23f8eb
commit 2a2ec9dbc3
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GPG key ID: 606D7358F94DA209
3 changed files with 37 additions and 4 deletions
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29
test/parallel/test-buffer-sharedarraybuffer.js Normal file
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/*global SharedArrayBuffer*/
'use strict';
// Flags: --harmony-sharedarraybuffer
require('../common');
const assert = require('assert');
const Buffer = require('buffer').Buffer;
const sab = new SharedArrayBuffer(24);
const arr1 = new Uint16Array(sab);
const arr2 = new Uint16Array(12);
arr2[0] = 5000;
arr1[0] = 5000;
arr1[1] = 4000;
arr2[1] = 4000;
const arr_buf = Buffer.from(arr1.buffer);
const ar_buf = Buffer.from(arr2.buffer);
assert.deepStrictEqual(arr_buf, ar_buf, 0);
arr1[1] = 6000;
arr2[1] = 6000;
assert.deepStrictEqual(arr_buf, ar_buf, 0);
// Checks for calling Buffer.byteLength on a SharedArrayBuffer
assert.strictEqual(Buffer.byteLength(sab), sab.byteLength, 0);