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GeezerVison is showing github.com — buffer: move SlowBuffer to EOL · nodejs/node@0579e0e

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  • benchmark/buffers
    • buffer-iterate.js
    • buffer-read-with-byteLength.js
    • buffer-read.js
    • buffer-slice.js
    • buffer-write.js
  • doc
    • api
      • buffer.md
      • cli.md
      • deprecations.md
    • contributing
      • writing-and-running-benchmarks.md
    • node.1
  • lib
    • buffer.js
  • src
    • node_options.cc
  • test
    • parallel
      • test-buffer-alloc.js
      • test-buffer-bytelength.js
      • test-buffer-failed-alloc-typed-arrays.js
      • test-buffer-inspect.js
      • test-buffer-no-negative-allocation.js
      • test-buffer-over-max-length.js
      • test-buffer-slow.js
      • test-buffer-tostring-rangeerror.js
      • test-buffer-zero-fill-cli.js
      • test-icu-transcode.js
    • pummel
      • test-buffer-large-size-slowbuffer.js
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‎benchmark/buffers/buffer-iterate.js‎

Copy file name to clipboardExpand all lines: benchmark/buffers/buffer-iterate.js
+2-2Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
'use strict';
2-
const SlowBuffer = require('buffer').SlowBuffer;
2+
const { Buffer } = require('buffer');
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const common = require('../common.js');
44
const assert = require('assert');
55

@@ -19,7 +19,7 @@ const methods = {
1919
function main({ size, type, method, n }) {
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const buffer = type === 'fast' ?
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Buffer.alloc(size) :
22-
SlowBuffer(size).fill(0);
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Buffer.allocUnsafeSlow(size).fill(0);
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const fn = methods[method];
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‎benchmark/buffers/buffer-read-with-byteLength.js‎

Copy file name to clipboardExpand all lines: benchmark/buffers/buffer-read-with-byteLength.js
+2-1Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,6 @@
11
'use strict';
22
const common = require('../common.js');
3+
const { Buffer } = require('buffer');
34

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const types = [
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'IntBE',
@@ -18,7 +19,7 @@ const bench = common.createBenchmark(main, {
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function main({ n, buf, type, byteLength }) {
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const buff = buf === 'fast' ?
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Buffer.alloc(8) :
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require('buffer').SlowBuffer(8);
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Buffer.allocUnsafeSlow(8);
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const fn = `read${type}`;
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buff.writeDoubleLE(0, 0);
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‎benchmark/buffers/buffer-read.js‎

Copy file name to clipboardExpand all lines: benchmark/buffers/buffer-read.js
+2-1Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,6 @@
11
'use strict';
22
const common = require('../common.js');
3+
const { Buffer } = require('buffer');
34

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const types = [
56
'BigUInt64LE',
@@ -27,7 +28,7 @@ const bench = common.createBenchmark(main, {
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function main({ n, buf, type }) {
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const buff = buf === 'fast' ?
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Buffer.alloc(8) :
30-
require('buffer').SlowBuffer(8);
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Buffer.allocUnsafeSlow(8);
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const fn = `read${type}`;
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buff.writeDoubleLE(0, 0);
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‎benchmark/buffers/buffer-slice.js‎

Copy file name to clipboardExpand all lines: benchmark/buffers/buffer-slice.js
+2-2Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,14 +1,14 @@
11
'use strict';
22
const common = require('../common.js');
3-
const SlowBuffer = require('buffer').SlowBuffer;
3+
const { Buffer } = require('buffer');
44

55
const bench = common.createBenchmark(main, {
66
type: ['fast', 'slow', 'subarray'],
77
n: [1e6],
88
});
99

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const buf = Buffer.allocUnsafe(1024);
11-
const slowBuf = new SlowBuffer(1024);
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const slowBuf = Buffer.allocUnsafeSlow(1024);
1212

1313
function main({ n, type }) {
1414
const b = type === 'slow' ? slowBuf : buf;
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‎benchmark/buffers/buffer-write.js‎

Copy file name to clipboardExpand all lines: benchmark/buffers/buffer-write.js
+2-2Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
11
'use strict';
22
const common = require('../common.js');
3-
3+
const { Buffer } = require('buffer');
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const types = [
55
'BigUInt64LE',
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'BigUInt64BE',
@@ -73,7 +73,7 @@ const byteLength = {
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function main({ n, buf, type }) {
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const buff = buf === 'fast' ?
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Buffer.alloc(8) :
76-
require('buffer').SlowBuffer(8);
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Buffer.allocUnsafeSlow(8);
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const fn = `write${type}`;
7878

7979
if (!/\d/.test(fn))
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‎doc/api/buffer.md‎

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+5-27Lines changed: 5 additions & 27 deletions
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@@ -5340,28 +5340,6 @@ console.log(newBuf.toString('ascii'));
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Because the Euro (`€`) sign is not representable in US-ASCII, it is replaced
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with `?` in the transcoded `Buffer`.
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### Class: `SlowBuffer`
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<!-- YAML
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deprecated: v6.0.0
5347-
-->
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> Stability: 0 - Deprecated: Use [`Buffer.allocUnsafeSlow()`][] instead.
5350-
5351-
See [`Buffer.allocUnsafeSlow()`][]. This was never a class in the sense that
5352-
the constructor always returned a `Buffer` instance, rather than a `SlowBuffer`
5353-
instance.
5354-
5355-
#### `new SlowBuffer(size)`
5356-
5357-
<!-- YAML
5358-
deprecated: v6.0.0
5359-
-->
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* `size` {integer} The desired length of the new `SlowBuffer`.
5362-
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See [`Buffer.allocUnsafeSlow()`][].
5364-
53655343
### Buffer constants
53665344

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<!-- YAML
@@ -5494,11 +5472,11 @@ added: v5.10.0
54945472

54955473
Node.js can be started using the `--zero-fill-buffers` command-line option to
54965474
cause all newly-allocated `Buffer` instances to be zero-filled upon creation by
5497-
default. Without the option, buffers created with [`Buffer.allocUnsafe()`][],
5498-
[`Buffer.allocUnsafeSlow()`][], and `new SlowBuffer(size)` are not zero-filled.
5499-
Use of this flag can have a measurable negative impact on performance. Use the
5500-
`--zero-fill-buffers` option only when necessary to enforce that newly allocated
5501-
`Buffer` instances cannot contain old data that is potentially sensitive.
5475+
default. Without the option, buffers created with [`Buffer.allocUnsafe()`][] and
5476+
[`Buffer.allocUnsafeSlow()`][] are not zero-filled. Use of this flag can have a
5477+
measurable negative impact on performance. Use the `--zero-fill-buffers` option
5478+
only when necessary to enforce that newly allocated `Buffer` instances cannot
5479+
contain old data that is potentially sensitive.
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55035481
```console
55045482
$ node --zero-fill-buffers
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‎doc/api/cli.md‎

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+1-3Lines changed: 1 addition & 3 deletions
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@@ -3111,8 +3111,7 @@ node --watch --watch-preserve-output test.js
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added: v6.0.0
31123112
-->
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3114-
Automatically zero-fills all newly allocated [`Buffer`][] and [`SlowBuffer`][]
3115-
instances.
3114+
Automatically zero-fills all newly allocated [`Buffer`][] instances.
31163115

31173116
## Environment variables
31183117

@@ -3887,7 +3886,6 @@ node --stack-trace-limit=12 -p -e "Error.stackTraceLimit" # prints 12
38873886
[`ERR_UNSUPPORTED_TYPESCRIPT_SYNTAX`]: errors.md#err_unsupported_typescript_syntax
38883887
[`NODE_OPTIONS`]: #node_optionsoptions
38893888
[`NO_COLOR`]: https://no-color.org
3890-
[`SlowBuffer`]: buffer.md#class-slowbuffer
38913889
[`Web Storage`]: https://developer.mozilla.org/en-US/docs/Web/API/Web_Storage_API
38923890
[`WebSocket`]: https://developer.mozilla.org/en-US/docs/Web/API/WebSocket
38933891
[`YoungGenerationSizeFromSemiSpaceSize`]: https://chromium.googlesource.com/v8/v8.git/+/refs/tags/10.3.129/src/heap/heap.cc#328
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‎doc/api/deprecations.md‎

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@@ -695,6 +695,9 @@ Type: End-of-Life
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<!-- YAML
697697
changes:
698+
- version: REPLACEME
699+
pr-url: https://github.com/nodejs/node/pull/58008
700+
description: End-of-Life.
698701
- version: REPLACEME
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pr-url: https://github.com/nodejs/node/pull/55175
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description: Runtime deprecation.
@@ -706,9 +709,9 @@ changes:
706709
description: Documentation-only deprecation.
707710
-->
708711

709-
Type: Runtime
712+
Type: End-of-Life
710713

711-
The [`SlowBuffer`][] class is deprecated. Please use
714+
The `SlowBuffer` class has been removed. Please use
712715
[`Buffer.allocUnsafeSlow(size)`][] instead.
713716

714717
### DEP0031: `ecdh.setPublicKey()`
@@ -3918,7 +3921,6 @@ upon `require('node:module').builtinModules`.
39183921
[`ReadStream.open()`]: fs.md#class-fsreadstream
39193922
[`Server.getConnections()`]: net.md#servergetconnectionscallback
39203923
[`Server.listen({fd: <number>})`]: net.md#serverlistenhandle-backlog-callback
3921-
[`SlowBuffer`]: buffer.md#class-slowbuffer
39223924
[`String.prototype.toWellFormed`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toWellFormed
39233925
[`WriteStream.open()`]: fs.md#class-fswritestream
39243926
[`assert.CallTracker`]: assert.md#class-assertcalltracker
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‎doc/contributing/writing-and-running-benchmarks.md‎

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@@ -572,7 +572,7 @@ the code inside the `main` function if it's more than just declaration.
572572
```js
573573
'use strict';
574574
const common = require('../common.js');
575-
const { SlowBuffer } = require('node:buffer');
575+
const { Buffer } = require('node:buffer');
576576

577577
const configs = {
578578
// Number of operations, specified here so they show up in the report.
@@ -603,10 +603,11 @@ function main(conf) {
603603
bench.start();
604604

605605
// Do operations here
606-
const BufferConstructor = conf.type === 'fast' ? Buffer : SlowBuffer;
607606

608607
for (let i = 0; i < conf.n; i++) {
609-
new BufferConstructor(conf.size);
608+
conf.type === 'fast' ?
609+
Buffer.allocUnsafe(conf.size) :
610+
Buffer.allocUnsafeSlow(conf.size);
610611
}
611612

612613
// End the timer, pass in the number of operations
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‎doc/node.1‎

Copy file name to clipboardExpand all lines: doc/node.1
+1-1Lines changed: 1 addition & 1 deletion
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@@ -619,7 +619,7 @@ If set to 0 then V8 will choose an appropriate size of the thread pool based on
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If the value provided is larger than V8's maximum, then the largest value will be chosen.
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.
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.It Fl -zero-fill-buffers
622-
Automatically zero-fills all newly allocated Buffer and SlowBuffer instances.
622+
Automatically zero-fills all newly allocated Buffer instances.
623623
.
624624
.It Fl c , Fl -check
625625
Check the script's syntax without executing it.

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