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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

Challenges with asynchronous Rust

So, while we’ve seen with our own eyes that the executor and reactor could be loosely coupled, which in turn means that you could in theory mix and match reactors and executors, the question is why do we encounter so much friction when trying to do just that?

Most programmers that have used async Rust have experienced problems caused by incompatible async libraries, and we saw an example of the kind of error message you would get previously.

To understand this, we have to dive a little bit deeper into the existing async runtimes in Rust, specifically those we typically use for desktop and server applications.

Explicit versus implicit reactor instantiation


The type of future we’ll talk about going forward is leaf futures, the kind that actually represents an I/O operation (for example, HttpGetFuture).

When you create a runtime in Rust, you also need to create non-blocking primitives of the Rust standard library....

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