Search icon
Cart icon
Close icon
You have no products in your basket yet
Save more on your purchases!
Savings automatically calculated. No voucher code required
Arrow left icon
All Products
Best Sellers
New Releases
Learning Hub
Free Learning
Arrow right icon
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

Concurrency versus parallelism

Right off the bat, we’ll dive into this subject by defining what concurrency is. Since it is quite easy to confuse concurrent with parallel, we will try to make a clear distinction between the two from the get-go.


Concurrency is about dealing with a lot of things at the same time.

Parallelism is about doing a lot of things at the same time.

We call the concept of progressing multiple tasks at the same time multitasking. There are two ways to multitask. One is by progressing tasks concurrently, but not at the same time. Another is to progress tasks at the exact same time in parallel. Figure 1.1 depicts the difference between the two scenarios:

Figure 1.1 – Multitasking two tasks

Figure 1.1 – Multitasking two tasks

First, we need to agree on some definitions:

  • Resource: This is something we need to be able to progress a task. Our resources are limited. This could be CPU time or memory.
  • Task: This is a set of operations...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $15.99/month. Cancel anytime}