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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

Preface

The content in this book was initially written as a series of shorter books for programmers wanting to learn asynchronous programming from the ground up using Rust. I found the existing material I came upon at the time to be in equal parts frustrating, enlightening, and confusing, so I wanted to do something about that.

Those shorter books became popular, so when I got the chance to write everything a second time, improve the parts that I was happy with, and completely rewrite everything else and put it in a single, coherent book, I just had to do it. The result is right in front of you.

People start programming for a variety of different reasons. Scientists start programming to model problems and perform calculations. Business experts create programs that solve specific problems that help their businesses. Some people start programming as a hobby or in their spare time. Common to these programmers is that they learn programming from the top down.

Most of the time, this is perfectly fine, but on the topic of asynchronous programming in general, and Rust in particular, there is a clear advantage to learning about the topic from first principles, and this book aims to provide a means to do just that.

Asynchronous programming is a way to write programs where you divide your program into tasks that can be stopped and resumed at specific points. This, in turn, allows a language runtime, or a library, to drive and schedule these tasks so their progress interleaves.

Asynchronous programming will, by its very nature, affect the entire program flow, and it’s very invasive. It rewrites, reorders, and schedules the program you write in a way that’s not always obvious to you as a programmer.

Most programming languages try to make asynchronous programming so easy that you don’t really have to understand how it works just to be productive in it.

You can get quite productive writing asynchronous Rust without really knowing how it works as well, but Rust is more explicit and surfaces more complexity to the programmer than most other languages. You will have a much easier time handling this complexity if you get a deep understanding of asynchronous programming in general and what really happens when you write asynchronous Rust.

Another huge upside is that learning from first principles results in knowledge that is applicable way beyond Rust, and it will, in turn, make it easier to pick up asynchronous programming in other languages as well. I would even go so far as to say that most of this knowledge will be useful even in your day-to-day programming. At least, that’s how it’s been for me.

I want this book to feel like you’re joining me on a journey, where we build our knowledge topic by topic and learn by creating examples and experiments along the way. I don’t want this book to feel like a lecturer simply telling you how everything works.

This book is created for people who are curious by nature, the kind of programmers who want to understand the systems they use, and who like creating small and big experiments as a way to explore and learn.

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