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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 4 – pinning to the rescue

Fortunately, the changes we need to make are small, but before we continue and make the changes, let’s create a new folder and copy everything we had in our previous example over to that folder:

  • Copy the entire c-coroutines-problem folder and name the new copy e-coroutines-pin
  • Open Cargo.toml and rename the name of the package e-coroutines-pin

Tip

You’ll find the example code we’ll go through here in this book’s GitHub repository under the ch09/e-coroutines-pin folder.

Now that we have a new folder set up, let’s start making the necessary changes. The logical place to start is our Future definition in future.rs.

future.rs

The first thing we’ll do is pull in Pin from the standard library at the very top:

ch09/e-coroutines-pin/src/future.rs

use std::pin::Pin;

The only other change we need to make is in the definition of poll in our Future trait:

fn...
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