mirror of
https://github.com/zebrajr/node.git
synced 2025-12-07 12:20:50 +01:00
3c02727055
This backports the --zero-fill-buffers command line flag introduced in master. When used, all Buffer and SlowBuffer instances will zero fill by default. This does *not* backport any of the other Buffer API or behavior changes. PR-URL: https://github.com/nodejs/node/pull/5744 Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com> Reviewed-By: Trevor Norris <trev.norris@gmail.com>
31 lines
739 B
JavaScript
31 lines
739 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 (let n = 0; n < buf.length; n++)
|
|
if (buf[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 = [
|
|
SlowBuffer(20),
|
|
Buffer(20),
|
|
new SlowBuffer(20)
|
|
];
|
|
for (const buf of bufs) {
|
|
assert(isZeroFilled(buf));
|
|
}
|
|
}
|