use std::hint::black_box;
use std::thread;

use nix::unistd::getpid;

fn print(msg: impl AsRef<str>) {
    let pid = getpid().as_raw();
    let msg = msg.as_ref();
    println!("\x1b[0;31m[{pid}]: {msg}\x1b[0m")
}

fn main() {
    let count = 10;

    let mut handles = vec![];
    for i in 0..count {
        handles.push(thread::spawn(move || {
            let vec = vec![i; 1024_usize.pow(2)];
            black_box(vec[i]);
            print(format!("thread: {}", i));
        }));
    }

    for handle in handles.drain(..) {
        handle.join().expect("thread failed");
    }
}