Book Image

Rust Standard Library Cookbook

By : Jan Hohenheim, Daniel Durante
Book Image

Rust Standard Library Cookbook

By: Jan Hohenheim, Daniel Durante

Overview of this book

Mozilla’s Rust is gaining much attention with amazing features and a powerful library. This book will take you through varied recipes to teach you how to leverage the Standard library to implement efficient solutions. The book begins with a brief look at the basic modules of the Standard library and collections. From here, the recipes will cover packages that support file/directory handling and interaction through parsing. You will learn about packages related to advanced data structures, error handling, and networking. You will also learn to work with futures and experimental nightly features. The book also covers the most relevant external crates in Rust. By the end of the book, you will be proficient at using the Rust Standard library.
Table of Contents (12 chapters)

How it works...

Well, that's a load of complicated code.

Let's start by introducing the structures that participate in this example:

  • SomeOsSpecificFunctionalityHandle [6] stands for an unspecified feature of your operating system that operates on some data and is presumably unsafe to use directly. We assume this feature locks some resource of the operating system that needs to be unlocked again.
  • SomeOsFunctionality  [9] represents a safe wrapper around the feature, plus some data T that might be useful for it.
  • SomeOsFunctionalityGuard [20] is an RAII guard created by using the lock function. When it is dropped, it will automatically unlock the underlying resource. Additionally, it can be directly used as if it was the data T itself.

These functions might look a bit abstract, as they don't do anything specific, but instead act on some unspecified OS feature. This is because most of the really useful candidates are already present in the standard library&...