Rust

14.2    Ownership in Threads

In Rust, the concept of ownership plays a crucial role in managing data across multiple threads. As threads can potentially operate on shared data, understanding ownership ensures that data is accessed safely and concurrently, preventing issues like data races and ensuring memory safety. (For a refresher on the basics of ownership, refer to Chapter 4, Section 4.1.)

Consider the code shown in Listing 14.5.

use std::thread;fn main() {    let x = "some string".to_string();    thread::spawn(|| {   // Error    println!("{x}");    });}  

Listing 14.5     Accessing a Variable Defined in main inside the Thread

In this code, we define a String variable and then try to access it inside the thread. The code does not compile and throws an ...