Function tao_of_rust::ch11::atomics::atomic_demo

pub fn atomic_demo()

原子类型

Basic usage: 使用原子类型实现自旋锁

use std::sync::Arc;
use std::sync::atomic::{AtomicUsize, Ordering};
use std::thread;
fn main() {
    let spinlock = Arc::new(AtomicUsize::new(1));
    let spinlock_clone = spinlock.clone();
    let thread = thread::spawn(move|| {
        spinlock_clone.store(0, Ordering::SeqCst);
    });
   while spinlock.load(Ordering::SeqCst) != 0 {}
   if let Err(panic) = thread.join() {
       println!("Thread had an error: {:?}", panic);
   }
}