forked from waja/action-debian-package
59 lines
1.7 KiB
Markdown
59 lines
1.7 KiB
Markdown
<h1 align="center">Welcome to atomic-sleep ⏱️</h1>
|
|
<p>
|
|
<img alt="Version" src="https://img.shields.io/badge/version-1.0.0-blue.svg?cacheSeconds=2592000" />
|
|
<a href="#" target="_blank">
|
|
<img alt="License: MIT" src="https://img.shields.io/badge/License-MIT-yellow.svg" />
|
|
</a>
|
|
<a href="https://twitter.com/davidmarkclem" target="_blank">
|
|
<img alt="Twitter: davidmarkclem" src="https://img.shields.io/twitter/follow/davidmarkclem.svg?style=social" />
|
|
</a>
|
|
</p>
|
|
|
|
> Zero CPU overhead, zero dependency, true event-loop blocking sleep
|
|
|
|
## Usage
|
|
|
|
```js
|
|
const sleep = require('atomic-sleep')
|
|
|
|
console.time('sleep')
|
|
setTimeout(() => { console.timeEnd('sleep') }, 100)
|
|
sleep(1000)
|
|
```
|
|
|
|
The `console.time` will report a time of just over 1000ms despite the `setTimeout`
|
|
being 100ms. This is because the event loop is paused for 1000ms and the setTimeout
|
|
fires immediately after the event loop is no longer blocked (as more than 100ms have passed).
|
|
|
|
## Install
|
|
|
|
```sh
|
|
npm install
|
|
```
|
|
|
|
## Run tests
|
|
|
|
```sh
|
|
npm test
|
|
```
|
|
|
|
## Support
|
|
|
|
Node and Browser versions that support both `SharedArrayBuffer` and `Atomics` will have (virtually) zero CPU overhead sleep.
|
|
|
|
For Node, Atomic Sleep can provide zero CPU overhead sleep from Node 8 and up.
|
|
|
|
For browser support see https://caniuse.com/#feat=sharedarraybuffer and https://caniuse.com/#feat=mdn-javascript_builtins_atomics.
|
|
|
|
|
|
For older Node versions and olders browsers we fall back to blocking the event loop in a way that will cause a CPU spike.
|
|
|
|
|
|
|
|
## Author
|
|
|
|
👤 **David Mark Clements (@davidmarkclem)**
|
|
|
|
* Twitter: [@davidmarkclem](https://twitter.com/davidmarkclem)
|
|
* Github: [@davidmarkclements](https://github.com/davidmarkclements)
|