Book Image

Hands-On Concurrency with Rust

By : Brian L. Troutwine
Book Image

Hands-On Concurrency with Rust

By: Brian L. Troutwine

Overview of this book

Most programming languages can really complicate things, especially with regard to unsafe memory access. The burden on you, the programmer, lies across two domains: understanding the modern machine and your language's pain-points. This book will teach you to how to manage program performance on modern machines and build fast, memory-safe, and concurrent software in Rust. It starts with the fundamentals of Rust and discusses machine architecture concepts. You will be taken through ways to measure and improve the performance of Rust code systematically and how to write collections with confidence. You will learn about the Sync and Send traits applied to threads, and coordinate thread execution with locks, atomic primitives, data-parallelism, and more. The book will show you how to efficiently embed Rust in C++ code and explore the functionalities of various crates for multithreaded applications. It explores implementations in depth. You will know how a mutex works and build several yourself. You will master radically different approaches that exist in the ecosystem for structuring and managing high-scale systems. By the end of the book, you will feel comfortable with designing safe, consistent, parallel, and high-performance applications in Rust.
Table of Contents (18 chapters)
Title Page
Copyright and Credits
Packt Upsell

Chapter 6. Atomics – the Primitives of Synchronization

In Chapter 4, Sync and Send – the Foundation of Rust Concurrency, and Chapter 5, Locks – Mutex, Condvar, Barriers and RWLock, we discussed the fundamentals of lock-based concurrency in Rust. However, there are some cases where lock-based programming is not suitable, such as when extreme performance is a concern or threads may never block. In such domains, the programmer must rely on the atomic synchronization primitives of modern CPUs.

In this chapter, we'll be discussing the atomic primitives available to the Rust programmer. Programming with atomics is a complex topic and an area of active research. An entire book could be dedicated to the topic of atomic Rust programming. As such, we'll be shifting our tactics slightly for this chapter, focusing on more of a tutorial style than previous chapters where we've done deep dives on existing software. Everything presented in the prior chapters will come to bear here. By the end of this chapter...