For most people, we can just accept Tokio as the de facto standard, and everything is good. Having the other runtimes only makes things better. Don't do anything weird and it won't be too much work if you need to change.

Any big change you miss is bound to either be implemented in Tokio or be too different for any abstraction to save you from the work.

If you're writing a library that you want to be reusable by everyone, I understand your frustration that it's not easier to make it universal for all async runtimes. You can still choose one, minimize the code you would have to change to implement others, and appreciate that in almost every other programming language you don't get more than one async engine anyway.

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[–] [email protected] 8 points 1 year ago (2 children)

The way I look at this is I have a reasonable understanding of rust. I'm not an expert but I can more or less do whatever computation I need to do, use crates, and so on. But with async it's like learning another language. Somewhat of an exaggeration, but it's not just what code you need to write, but also being able to read the error messages from the compiler, understanding the patterns and so on. So yes, it's probably fine, but it does take work.

[–] hoodle 1 points 1 year ago

It takes work for sure, but admittedly I didn't find it that much of an undertaking. I'm writing a highly-parallelized 3d game engine with async/await. Am up to a few thousand lines and it's running very efficiently.

It's been pretty care-free so far. The biggest pain-point was starting before async traits were stabilized. I think a lack of good instructional material is what has hindered it the most.

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