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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
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

Interrupts, firmware, and I/O

We’re nearing the end of the general CS subjects in this book, and we’ll start to dig our way out of the rabbit hole soon.

This part tries to tie things together and look at how the whole computer works as a system to handle I/O and concurrency.

Let’s get to it!

A simplified overview

Let’s look at some of the steps where we imagine that we read from a network card:

Remember that we’re simplifying a lot here. This is a rather complex operation but we’ll focus on the parts that are of most interest to us and skip a few steps along the way.

Step 1 – Our code

We register a socket. This happens by issuing a syscall to the OS. Depending on the OS, we either get a file descriptor (macOS/Linux) or a socket (Windows).

The next step is that we register our interest in Read events on that socket.

Step 2 – Registering events with the OS

This is handled in...

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