Do any operating systems other than #Linux (#Windows, #macOS, #FreeBSD, #OpenBSD, etc) have an API for non-blocking file IO?
I know Linux has that in #io_uring, which can do almost any IO operation (even fsync) in the background and tell you when it's done, but is that the only OS with such a feature?
C++Now 2025 SESSION ANNOUNCEMENT: Extending std::execution - Implementing Custom Algorithms with Senders & Receivers by Robert Leahy
https://schedule.cppnow.org/session/2025/extending-stdexecution/
Register now at https://cppnow.org/registration/
Python friends:
I have a desire to build a small program for testing a piece of hardware I am designing. This program will need to have a REPL so the user can invoke various configuration and test commands while connected to the device, but also asynchronously handle data arriving from that device and displaying it.
Can anyone suggest packages and/or a strategy for doing this?
I was cited in an academic paper! It studies potential bugs in #async #Kotlin programs when developers aren't familiar with #coroutines and suspending functions. So cool that TWO of my investigation write-ups were included in this great research 
doi.org/10.4230/LIPI...
New Kitten update
• 
Kitten HTML templates and kitten.Component render functions can now be async.
This is quite a big one and it took me finally biting the bullet and getting my head around generators in JavaScript to implement properly.
So now you can mix synchronous and asynchronous components as you like and if there are any asynchronous components in your templates they will automatically be awaited (even if you forget to use await) ;)
I’ll write a proper post/tutorial/documentation for it soon but for the time being enjoy the screenshots where a layout template gets the latest three posts from my mock fediverse public timeline service and displays them on the page.
The kitten.Component version also has a refresh button that streams a different three to the page.
For those of you unfamiliar with Kitten, this is all the code in either example. No scaffolding, nothing. Pop either into a file called index.page.js and run kitten in that folder and visit https://localhost to see the example run.
Enjoy!
![const BasicLayoutTemplate = async ({ title, SLOT }) => {
const posts = (await (await fetch('https://streamiverse.small-web.org/public/')).json()).splice(0, 3)
return kitten.html`
<main>
<page css>
<h1>${title}</h1>
${SLOT}
<h2>Fediverse posts</h2>
<ul>
${posts.map(post => kitten.html`
<li><img src='${post.account.avatar}'> ${[post.content]}</li>
`)}
</ul>
<style>
li { display: flex; gap: 1em; margin-bottom: 1em; }
img { width: 5em; height: auto; }
</style>
</main>
`
}
export default async () => await kitten.html`
<${BasicLayoutTemplate} title='Async components are fun!'>
<markdown>
Oh, isn’t this __nice?__
</markdown>
</>
`](https://s3-eu-central-1.amazonaws.com/mastodon-aral/media_attachments/files/114/258/812/670/834/838/original/228733ad125b57f4.png "const BasicLayoutTemplate = async ({ title, SLOT }) => {
const posts = (await (await fetch('https://streamiverse.small-web.org/public/')).json()).splice(0, 3)
return kitten.html`
<main>
<page css>
<h1>${title}</h1>
${SLOT}
<h2>Fediverse posts</h2>
<ul>
${posts.map(post => kitten.html`
<li><img src='${post.account.avatar}'> ${[post.content]}</li>
`)}
</ul>
<style>
li { display: flex; gap: 1em; margin-bottom: 1em; }
img { width: 5em; height: auto; }
</style>
</main>
`
}
export default async () => await kitten.html`
<${BasicLayoutTemplate} title='Async components are fun!'>
<markdown>
Oh, isn’t this __nice?__
</markdown>
</>
`")
![class BasicLayoutTemplate extends kitten.Component {
async html ({title, SLOT}) {
return kitten.html`
<main id='page' morph>
<page css>
<h1>${title}</h1>
${SLOT}
<${FediversePosts.connectedTo(this)} />
</main>
`
}
}
class FediversePosts extends kitten.Component {
async html () {
const posts = (await (await fetch('https://streamiverse.small-web.org/public/')).json()).splice(Math.floor(Math.random()*6), 3)
return kitten.html`
<div id='posts' morph>
<h2>Fediverse posts</h2>
<ul>
${posts.map(post => kitten.html`
<li><img src='${post.account.avatar}'> ${[post.content]}</li>
`)}
</ul>
<button name='refresh' connect>Refresh</button>
<style>
li { display: flex; gap: 1em; margin-bottom: 1em; }
img { width: 5em; height: auto; }
</style>
</div>
`
}
onRefresh () { this.update() }
}
export default class MyPage extends kitten.Page {
async html () {
return kitten.html`
<${BasicLayoutTemplate.connectedTo(this)} title='Async components are fun!'>
<markdown>
Oh, isn’t this __nice?__
</markdown>
</>
`
}
}](https://s3-eu-central-1.amazonaws.com/mastodon-aral/media_attachments/files/114/258/813/076/463/648/original/22f714259e01b4f8.png "class BasicLayoutTemplate extends kitten.Component {
async html ({title, SLOT}) {
return kitten.html`
<main id='page' morph>
<page css>
<h1>${title}</h1>
${SLOT}
<${FediversePosts.connectedTo(this)} />
</main>
`
}
}
class FediversePosts extends kitten.Component {
async html () {
const posts = (await (await fetch('https://streamiverse.small-web.org/public/')).json()).splice(Math.floor(Math.random()*6), 3)
return kitten.html`
<div id='posts' morph>
<h2>Fediverse posts</h2>
<ul>
${posts.map(post => kitten.html`
<li><img src='${post.account.avatar}'> ${[post.content]}</li>
`)}
</ul>
<button name='refresh' connect>Refresh</button>
<style>
li { display: flex; gap: 1em; margin-bottom: 1em; }
img { width: 5em; height: auto; }
</style>
</div>
`
}
onRefresh () { this.update() }
}
export default class MyPage extends kitten.Page {
async html () {
return kitten.html`
<${BasicLayoutTemplate.connectedTo(this)} title='Async components are fun!'>
<markdown>
Oh, isn’t this __nice?__
</markdown>
</>
`
}
}")
What are the origins of async/await in C#? | One Dev Question with Jeffrey Richter.
www.youtube.com/watch?v=MtDd...
#dotnet #async #csharp #programming #devcommunity
What are the origins of async/...
What are the origins of async/await in C#? | One Dev Question with Jeffrey Richter.
Refine your Kotlin skills and unlock the full potential of structured concurrency with Kotlin Coroutine Confidence by Sam Cooper---now in beta!
Read more: https://medium.com/pragmatic-programmers/kotlin-coroutine-confidence-efd64a3c04a5
ebook: https://pragprog.com/titles/sckotlin/kotlin-coroutine-confidence/
C++Now 2025 SESSION ANNOUNCEMENT: Extending std::execution - Implementing Custom Algorithms with Senders & Receivers by Robert Leahy
https://schedule.cppnow.org/session/2025/extending-stdexecution/
Register now at https://cppnow.org/registration/
`async-std` has been discontinued, https://crates.io/crates/async-std.
The authors suggest to use `smol` instead, which is a great advice! https://crates.io/crates/smol
How browsers REALLY load Web pages
When browsers load a Web page and its subresources, A LOT happens under the hood. They need to take into account render/parsing blocking resources, use a preload scanner, listen to resource hints (like preload/preconnect), loading modifiers (async/defer/module), fetchpriority, responsive images, and much more. […]
https://fosdem.org/2025/schedule/event/fosdem-2025-4852-how-browsers-really-load-web-pages/
mastodon uno admin 
