Most async Rust tutorials start with Tokio and skip what async actually is. This post goes back to first principles – the Future trait, the poll model, why Rust ships no runtime, and what a runtime is actually doing when it runs your code.
Tag: tokio
Async Rust with Tokio Part 1: How Async Rust Works – Futures, Poll, and the Runtime Model
Before you can use Tokio effectively, you need to understand what async Rust actually is under the hood. This post covers the Future trait, the poll model, why Rust has no built-in runtime, and how laziness gives you control that most async runtimes do not.
