futures-rs is a library providing the foundations for asynchronous programming in Rust. It includes key trait definitions like Stream, as well as utilities like join! , select!, and various futures combinator methods which enable expressive asynchronous control flow. Usage Add this to your Cargo.toml: [ dependencies ] futures = "0.3"
futures-rs is a library providing the foundations for asynchronous programming in Rust. It includes key trait definitions like Stream, as well as utilities like join! , select!, and various futures combinator methods which enable expressive asynchronous control flow. Usage Add this to your Cargo.toml: [ dependencies ] futures = "0.3"
This book aims to explain Futures in Rust using an example driven approach, exploring why they're designed the way they are, and how they work. We'll also take a look at some of the alternatives we have when dealing with concurrency in programming. Going into the level of detail I do in this book is not needed to use futures or async/await in Rust.
Async in Rust uses a Poll based approach, in which an asynchronous task will have three phases. The Poll phase. A Future is polled which results in the task progressing until a point where it can no longer make progress. We often refer to the part of the runtime which polls a Future as an executor. The Wait phase.