Skip to content

stream,benchmark: refactor use es2020 statements #44533

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
xtx1130 wants to merge 2 commits into from
Closed

stream,benchmark: refactor use es2020 statements #44533

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
4025c62
stream: refactor use es2020 statement
xtx1130 Sep 6, 2022
a5dd0c9
benchmark: add stream destroy benchmark
xtx1130 Sep 7, 2022
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
56 changes: 56 additions & 0 deletions benchmark/streams/destroy.js
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,56 @@
'use strict';
const common = require('../common.js');
const {
Duplex,
Readable,
Transform,
Writable,
} = require('stream');

const bench = common.createBenchmark(main, {
n: [1e6],
kind: ['duplex', 'readable', 'transform', 'writable']
});

function main({ n, kind }) {
switch (kind) {
case 'duplex':
new Duplex({});
new Duplex();

bench.start();
for (let i = 0; i < n; ++i)
new Duplex().destroy();
bench.end(n);
break;
case 'readable':
new Readable({});
new Readable();

bench.start();
for (let i = 0; i < n; ++i)
new Readable().destroy();
bench.end(n);
break;
case 'writable':
new Writable({});
new Writable();

bench.start();
for (let i = 0; i < n; ++i)
new Writable().destroy();
bench.end(n);
break;
case 'transform':
new Transform({});
new Transform();

bench.start();
for (let i = 0; i < n; ++i)
new Transform().destroy();
bench.end(n);
break;
default:
throw new Error('Invalid kind');
}
}
12 changes: 6 additions & 6 deletions lib/internal/streams/destroy.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,7 @@ function destroy(err, cb) {
// With duplex streams we use the writable side for state.
const s = w || r;

if ((w && w.destroyed) || (r && r.destroyed)) {
if (w?.destroyed || r?.destroyed) {
if (typeof cb === 'function') {
cb();
}
Expand Down Expand Up @@ -128,7 +128,7 @@ function emitCloseNT(self) {
r.closeEmitted = true;
}

if ((w && w.emitClose) || (r && r.emitClose)) {
if (w?.emitClose || r?.emitClose) {
self.emit('close');
}
}
Expand All @@ -137,7 +137,7 @@ function emitErrorNT(self, err) {
const r = self._readableState;
const w = self._writableState;

if ((w && w.errorEmitted) || (r && r.errorEmitted)) {
if (w?.errorEmitted || r?.errorEmitted) {
return;
}

Expand Down Expand Up @@ -192,11 +192,11 @@ function errorOrDestroy(stream, err, sync) {
const r = stream._readableState;
const w = stream._writableState;

if ((w && w.destroyed) || (r && r.destroyed)) {
if (w?.destroyed || r?.destroyed) {
return this;
}

if ((r && r.autoDestroy) || (w && w.autoDestroy))
if (r?.autoDestroy || w?.autoDestroy)
stream.destroy(err);
else if (err) {
// Avoid V8 leak, https://github.com/nodejs/node/pull/34103#issuecomment-652002364
Expand Down Expand Up @@ -283,7 +283,7 @@ function emitConstructNT(stream) {
}

function isRequest(stream) {
return stream && stream.setHeader && typeof stream.abort === 'function';
return stream?.setHeader && typeof stream.abort === 'function';
}

function emitCloseLegacy(stream) {
Expand Down