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Asynchronous Programming in Rust

You're reading from  Asynchronous Programming in Rust

Product type Book
Published in Feb 2024
Publisher Packt
ISBN-13 9781805128137
Pages 306 pages
Edition 1st Edition
Languages
Author (1):
Carl Fredrik Samson Carl Fredrik Samson
Profile icon Carl Fredrik Samson

Table of Contents (16) Chapters

Preface 1. Part 1:Asynchronous Programming Fundamentals
2. Chapter 1: Concurrency and Asynchronous Programming: a Detailed Overview 3. Chapter 2: How Programming Languages Model Asynchronous Program Flow 4. Chapter 3: Understanding OS-Backed Event Queues, System Calls, and Cross-Platform Abstractions 5. Part 2:Event Queues and Green Threads
6. Chapter 4: Create Your Own Event Queue 7. Chapter 5: Creating Our Own Fibers 8. Part 3:Futures and async/await in Rust
9. Chapter 6: Futures in Rust 10. Chapter 7: Coroutines and async/await 11. Chapter 8: Runtimes, Wakers, and the Reactor-Executor Pattern 12. Chapter 9: Coroutines, Self-Referential Structs, and Pinning 13. Chapter 10: Creating Your Own Runtime 14. Index 15. Other Books You May Enjoy

Improving our example 1 – variables

So, let’s recap what we have at this point by continuing where we left off in the previous chapter. We have the following:

  • A Future trait
  • A coroutine implementation using coroutine/await syntax and a preprocessor
  • A reactor based on mio::Poll
  • An executor that allows us to spawn as many top-level tasks as we want and schedules the ones that are ready to run
  • An HTTP client that only makes HTTP GET requests to our local delayserver instance

It’s not that bad – we might argue that our HTTP client is a little bit limited, but that’s not the focus of this book, so we can live with that. Our coroutine implementation, however, is severely limited. Let’s take a look at how we can make our coroutines slightly more useful.

The biggest downside with our current implementation is that nothing – and I mean nothing – can live across wait points. It makes sense to tackle this...

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