Threads

Rust provides a mechanism for spawning native OS threads via the spawn function, the argument of this function is a moving closure.

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use std::thread;
const NTHREADS: u32 = 10;
// This is the `main` thread
fn main() {
    // Make a vector to hold the children which are spawned.
    let mut children = vec![];
    for i in 0..NTHREADS {
        // Spin up another thread
        children.push(thread::spawn(move || {
            println!("this is thread number {}", i);
        }));
    }
    for child in children {
        // Wait for the thread to finish. Returns a result.
        let _ = child.join();
    }
}
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These threads will be scheduled by the OS.