lukechilds/node - node - Gitea: Git with a cup of tea

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Commit Graph

Author	SHA1	Message	Date
Gibson Fahnestock	db61c952de	test: use eslint to fix var->const/let Manually fix issues that eslint --fix couldn't do automatically. Backport-PR-URL: https://github.com/nodejs/node/pull/11775 PR-URL: https://github.com/nodejs/node/pull/10685 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Roman Reiss <me@silverwind.io>	8 years ago
Zach Bjornson	4014ecbfb4	buffer: speed up swap16/32, add swap64 * Speed up buffer.swap16 and swap32 by using builtins. Up to ~6x gain. Drop transition point between JS and C++ implementations accordingly. Amount of performance improvement not only depends on buffer size but also memory alignment. * Fix tests: C++ impl tests were testing 0-filled buffers so were always passing. * Add similar buffer.swap64 method. * Make buffer-swap benchmark mirror JS impl. doc/api/buffer.markdown has an entry of "added: REPLACEME" that should be changed to the correct release number before tagged. Because node is currently using a very old version of cpplint.py it doesn't know that std::swap() has moved from <algorithm> to <utility> in c++11. So until cpplint.py is updated simply NOLINT the line. Technically it should be NOLINT(build/include_what_you_use), but that puts the line over 80 characters causing another lint error. PR-URL: https://github.com/nodejs/node/pull/7157 Reviewed-By: Trevor Norris <trev.norris@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Backport-URL: https://github.com/nodejs/node/pull/7546	9 years ago
James M Snell	7d73e60f60	buffer: add swap16() and swap32() methods Adds Buffer.prototype.swap16() and Buffer.prototype.swap32() methods that mutate the Buffer instance in-place by swapping the 16-bit and 32-bit byte-order. Example: ```js const buf = Buffer([0x1, 0x2, 0x3, 0x4]); buf.swap16(); console.log(buf); // prints Buffer(0x2, 0x1, 0x4, 0x3); buf.swap32(); console.log(buf); // prints Buffer(0x3, 0x4, 0x1, 0x2); ``` PR-URL: https://github.com/nodejs/node/pull/5724 Reviewed-By: Trevor Norris <trev.norris@gmail.com>	9 years ago

Author

SHA1

Message

Date

Gibson Fahnestock

db61c952de

test: use eslint to fix var->const/let

Manually fix issues that eslint --fix couldn't do automatically.

Backport-PR-URL: https://github.com/nodejs/node/pull/11775
PR-URL: https://github.com/nodejs/node/pull/10685
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>

8 years ago

Zach Bjornson

4014ecbfb4

buffer: speed up swap16/32, add swap64

* Speed up buffer.swap16 and swap32 by using builtins. Up to ~6x gain.
  Drop transition point between JS and C++ implementations accordingly.
  Amount of performance improvement not only depends on buffer size but
  also memory alignment.
* Fix tests: C++ impl tests were testing 0-filled buffers so were
  always passing.
* Add similar buffer.swap64 method.
* Make buffer-swap benchmark mirror JS impl.

doc/api/buffer.markdown has an entry of "added: REPLACEME" that should
be changed to the correct release number before tagged.

Because node is currently using a very old version of cpplint.py it
doesn't know that std::swap() has moved from <algorithm> to <utility> in
c++11. So until cpplint.py is updated simply NOLINT the line.
Technically it should be NOLINT(build/include_what_you_use), but that
puts the line over 80 characters causing another lint error.

PR-URL: https://github.com/nodejs/node/pull/7157
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Backport-URL: https://github.com/nodejs/node/pull/7546

9 years ago

James M Snell

7d73e60f60

buffer: add swap16() and swap32() methods

Adds Buffer.prototype.swap16() and Buffer.prototype.swap32()
methods that mutate the Buffer instance in-place by swapping the
16-bit and 32-bit byte-order.

Example:

```js
const buf = Buffer([0x1, 0x2, 0x3, 0x4]);
buf.swap16();
console.log(buf);
  // prints Buffer(0x2, 0x1, 0x4, 0x3);

buf.swap32();
console.log(buf);
  // prints Buffer(0x3, 0x4, 0x1, 0x2);
```

PR-URL: https://github.com/nodejs/node/pull/5724
Reviewed-By: Trevor Norris <trev.norris@gmail.com>

9 years ago

3 Commits (278e8cc65ff7b1349c446fc27ad2e1ca6810262a)