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...

As explained in the comments of the code, calling std::sync::mpsc::channel() generates a tuple consisting of a Sender and a Receiver, which are conventionally called tx for transmission and rx for reception [12].

This naming convention doesn't come from Rust, but has been a standard in the telecommunications industry since at least 1960 when the RS-232 (Recommended Standard 232) was introduced, detailing how computers and modems should communicate with each other.

These two halves of the same channel can communicate with each other independently of the current thread they're in. The module's name, mspc, tells us that this channel is a Multi-producer, single-consumer channel, which means that we can clone our sender as many times as we want. We can use this fact to our advantage when dealing with closures [16 to 21]:

for i in 0..10 {
let tx = tx.clone();
thread::spawn(move || {
println!("sending: {}", i);