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![]() ## Summary All of the resolver code is run on the main thread, so a lot of the `Send` bounds and uses of `DashMap` and `Arc` are unnecessary. We could also switch to using single-threaded versions of `Mutex` and `Notify` in some places, but there isn't really a crate that provides those I would be comfortable with using. The `Arc` in `OnceMap` can't easily be removed because of the uv-auth code which uses the [reqwest-middleware](https://docs.rs/reqwest-middleware/latest/reqwest_middleware/trait.Middleware.html) crate, that seems to adds unnecessary `Send` bounds because of `async-trait`. We could duplicate the code and create a `OnceMapLocal` variant, but I don't feel that's worth it. |
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