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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

Cross-platform event queues

When creating a cross-platform event queue, you have to deal with the fact that you have to create one unified API that’s the same whether it’s used on Windows (IOCP), macOS (kqueue), or Linux (epoll). The most obvious difference is that IOCP is completion-based while kqueue and epoll are readiness-based.

This fundamental difference means that you have to make a choice:

  • You can create an abstraction that treats kqueue and epoll as completion-based queues, or
  • You can create an abstraction that treats IOCP as a readiness-based queue

From my personal experience, it’s a lot easier to create an abstraction that mimics a completion-based queue and handle the fact that kqueue and epoll are readiness-based behind the scenes than the other way around. The use of wepoll, as I alluded to earlier, is one way of creating a readiness-based queue on Windows. It will simplify creating such an API greatly, but we’ll leave...

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