mirror of
https://github.com/nodejs/node.git
synced 2025-05-07 15:35:41 +00:00
83c35dc6e8
PR-URL: https://github.com/nodejs/node/pull/26799 Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
33 lines
768 B
JavaScript
33 lines
768 B
JavaScript
'use strict';
|
|
// Flags: --zero-fill-buffers
|
|
|
|
// when using --zero-fill-buffers, every Buffer and SlowBuffer
|
|
// instance must be zero filled upon creation
|
|
|
|
require('../common');
|
|
const SlowBuffer = require('buffer').SlowBuffer;
|
|
const assert = require('assert');
|
|
|
|
function isZeroFilled(buf) {
|
|
for (const n of buf)
|
|
if (n > 0) return false;
|
|
return true;
|
|
}
|
|
|
|
// This can be somewhat unreliable because the
|
|
// allocated memory might just already happen to
|
|
// contain all zeroes. The test is run multiple
|
|
// times to improve the reliability.
|
|
for (let i = 0; i < 50; i++) {
|
|
const bufs = [
|
|
Buffer.alloc(20),
|
|
Buffer.allocUnsafe(20),
|
|
SlowBuffer(20),
|
|
Buffer(20),
|
|
new SlowBuffer(20)
|
|
];
|
|
for (const buf of bufs) {
|
|
assert(isZeroFilled(buf));
|
|
}
|
|
}
|