Control multiple threads

gistfile1.txt

use std::sync::Arc;
use std::thread;
use std::time::Duration;

fn main() {
    let ref_counter = Arc::new(true);
    for i in 0..10 {
        let cur_ref_counter = Arc::clone(&ref_counter);
        thread::spawn(move || {
            thread::sleep(Duration::from_secs(i + 1));
            cur_ref_counter;
            println!("Thread {} is dying!", i);
        });
    }
    loop {
        let count = Arc::strong_count(&ref_counter) - 1;
        println!("Current living threads: {}", count);
        if count == 0 {
            println!("All threads are gone!");
            break;
        }
        thread::sleep(Duration::from_millis(200));
    }
}