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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

Runtimes, Wakers, and the Reactor-Executor Pattern

In the previous chapter, we created our own pausable tasks (coroutines) by writing them as state machines. We created a common API for these tasks by requiring them to implement the Future trait. We also showed how we can create these coroutines using some keywords and programmatically rewrite them so that we don’t have to implement these state machines by hand, and instead write our programs pretty much the same way we normally would.

If we stop for a moment and take a bird’s eye view over what we got so far, it’s conceptually pretty simple: we have an interface for pausable tasks (the Future trait), and we have two keywords (coroutine/wait) to indicate code segments we want rewritten as a state machine that divides our code into segments we can pause between.

However, we have no event loop, and we have no scheduler yet. In this chapter, we’ll expand on our example and add a runtime that allows us...

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