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 to do it...

  1. In the folder bin, create a file called atomic.rs.

  2. Add the following code and run it with cargo run --bin atomic:

1 use std::sync::Arc;
2 use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering, ATOMIC_BOOL_INIT, ATOMIC_USIZE_INIT};
3 use std::thread;
4 use std::ops::{Deref, DerefMut};
5 use std::cell::UnsafeCell;
6
7 fn main() {
8 // Atomics are primitive types suited for
9 // well defined concurrent behaviour
10 let some_number = AtomicUsize::new(0);
11 // They are usually initialized by copying them from
12 // their global constants, so the following line does the same:
13 let some_number = ATOMIC_USIZE_INIT;
14
15 // load() gets the current value of the atomic
16 // Ordering tells the compiler how exactly to handle the
interactions
17 // with other threads. SeqCst ("Sequentially Consistent") can
always be used
18 // as it results in the same thing as if no parallelism was
involved
19 let curr_val = some_number.load(Ordering::SeqCst);
20...