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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

Why use an OS-backed event queue?

You already know by now that we need to cooperate closely with the OS to make I/O operations as efficient as possible. Operating systems such as Linux, macOS, and Windows provide several ways of performing I/O, both blocking and non-blocking.

I/O operations need to go through the operating system since they are dependent on resources that our operating system abstracts over. This can be the disk drive, the network card, or other peripherals. Especially in the case of network calls, we’re not only dependent on our own hardware, but we also depend on resources that might reside far away from our own, causing a significant delay.

In the previous chapter, we covered different ways to handle asynchronous operations when programming, and while they’re all different, they all have one thing in common: they need control over when and if they should yield to the OS scheduler when making a syscall.

In practice, this means that syscalls...

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