On my last post, I got really frustrated with tokio’s complexity and wanted to move to using mio directly. The advantages are that the programming model is pretty simple, even if actually working with it is hard. Event loops can cause your logic to spread over many different locations and make it hard to follow. I started to go that path until I figured out just how much work it would take. I decided to give tokio a second change, and at this point, I looked into attempts to provide async/await functionality to Rust.
It seems that at least some work is already available for this, using futures + some Rust macros. That let me write code that is much more natural looking, and I actually managed to make it work.