this post was submitted on 22 Sep 2023
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The State of Async Rust: Runtimes (corrode.dev)
submitted 1 year ago by snaggen@programming.dev to c/rust@programming.dev
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[โ€“] d_k_bo@feddit.de 1 points 1 year ago (1 children)

In fact, I would hypothesize that, from an ecosystem adoption POV, tokio's only killer feature is hyper's dependence on it.

AFAICT, the current hyper v1 release candidate only depends on tokio for tokio::sync::{mpsc, oneshot} (and sync is the only enabled feature).

It's intended to be runtime-agnostic. See also https://docs.rs/hyper/1.0.0-rc.4/hyper/rt/trait.Executor.html . I agree that its ecosystem is still very tokio-centric.

[โ€“] BB_C@programming.dev 2 points 1 year ago

FYI, I had some time to check out hyper v1 today.

The new API of hyper proper is very low-level. Directly usable API is apparently moved to a hyper-util crate, which, as expected, does have a hard dependency on the tokio runtime.

So, while it's good that hyper proper won't hard-depend on tokio rt, it appears that non-tokio-rt usage will either depend on a higher-level 3d party crate, or a lot of effort from direct hyper dependants to write a lot of glue code themselves.