Book Image

Practical System Programming for Rust Developers

By : Prabhu Eshwarla
Book Image

Practical System Programming for Rust Developers

By: Prabhu Eshwarla

Overview of this book

Modern programming languages such as Python, JavaScript, and Java have become increasingly accepted for application-level programming, but for systems programming, C and C++ are predominantly used due to the need for low-level control of system resources. Rust promises the best of both worlds: the type safety of Java, and the speed and expressiveness of C++, while also including memory safety without a garbage collector. This book is a comprehensive introduction if you’re new to Rust and systems programming and are looking to build reliable and efficient systems software without C or C++. The book takes a unique approach by starting each topic with Linux kernel concepts and APIs relevant to that topic. You’ll also explore how system resources can be controlled from Rust. As you progress, you’ll delve into advanced topics. You’ll cover network programming, focusing on aspects such as working with low-level network primitives and protocols in Rust, before going on to learn how to use and compile Rust with WebAssembly. Later chapters will take you through practical code examples and projects to help you build on your knowledge. By the end of this Rust programming book, you will be equipped with practical skills to write systems software tools, libraries, and utilities in Rust.
Table of Contents (17 chapters)
1
Section 1: Getting Started with System Programming in Rust
6
Section 2: Managing and Controlling System Resources in Rust
12
Section 3: Advanced Topics

The Rust Standard Library and systems programming

Before we dive into the standard library, let's understand the context of how it fits into systems programming.

In systems programming, one of the cardinal requirements is to manage system resources such as memory, files, network I/O, devices, and processes. Every operating system has a kernel (or equivalent), which is the central software module that is loaded in memory and connects the system hardware with the application processes. You may think, where does the Rust Standard Library fit in then? Are we going to write a kernel in Rust? No, that's not the purpose of this book. The most popular operating systems, which are basically the Unix, Linux, and Windows variants, all have kernels written mostly in C with a mix of assembly. It is still early days for Rust to augment C as the kernel development language, though there are several experimental efforts in that direction. However, what the Rust Standard Library offers...