التزامن (Concurrency)

use std::thread;

let handle = thread::spawn(|| {
    for i in 1..5 {
        println!("من الخيط: {i}");
    }
});

handle.join().unwrap();   // انتظر انتهاء الخيط

use std::sync::mpsc;
use std::thread;

let (tx, rx) = mpsc::channel();
thread::spawn(move || {
    tx.send("رسالة").unwrap();
});
println!("{}", rx.recv().unwrap());

use std::sync::{Arc, Mutex};
use std::thread;

let counter = Arc::new(Mutex::new(0));
let c = Arc::clone(&counter);
thread::spawn(move || {
    *c.lock().unwrap() += 1;
});