this post was submitted on 02 Aug 2025
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Rust

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\Device\Afd, or, the Deal with the Devil that makes async Rust work on Windows (2023) (notgull.net)
submitted 15 hours ago by Kissaki@programming.dev to c/rust@programming.dev
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However, there are some important features that WinSock just doesn’t expose. […]

Rust’s current async ecosystem is built atop a particularly cursed concept. It’s an unstable, undocumented Windows feature. It’s the lynchpin of not only the Rust ecosystem, but the JavaScript one as well. It’s controversial. It’s efficient. […] Without it, it’s unlikely that the async ecosystem would exist in its current form. It’s called \Device\Afd, and I’m tired of no one talking about it.

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