> For example when submitting a write operation, the memory location of those bytes must not be deallocated or overwritten.
> The io-uring crate doesn’t help much with this. The API doesn’t allow the borrow checker to protect you at compile time, and I don’t see it doing any runtime checks either.
I've seen comments like this before[1], and I get the impression that building a a safe async Rust library around io_uring is actually quite difficult. Which is sort of a bummer.
IIRC Alice from the tokio team also suggested there hasn't been much interest in pushing through these difficulties more recently, as the current performance is "good enough".
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