Share struct fields across threads

main.rs

use std::sync::Arc;

struct Editor {
    running: Arc<bool>,
}

impl Editor {
    fn start(&mut self) {
        *self.running = true;
        let running = self.running.clone();
        spawn(proc() {
            while *running {
                // do something
            }
        })
    }
}

fn main() {
    let mut e = Editor{running: Arc::new(true)};
    
    // after a while...
    *e.running = false;
}