Rust by Example

Threads

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

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.