FranklinChen · November 15, 2015 06:11 · Nov 15, 2015
diff --git a/playground.rs b/playground.rs
@@ -0,0 +1,34 @@
+use std::sync::{Arc, Mutex};
+use std::thread;
+
+struct Toaster {
+    count: u32
+}
+
+impl Toaster {
+    fn new() -> Toaster {
+        Toaster { count: 0 }
+    }
+}
+
+fn main() {
+    let toaster = Arc::new(Mutex::new(Toaster::new()));
+
+    let threads: Vec<_> =
+        (0..3)
+        .map(|_| {
+            let toaster = toaster.clone();
+            thread::spawn(move || {
+                // load and increment toaster's count, atomically
+                let mut t = toaster.lock().unwrap();
+                let index = t.count;
+                t.count += 1;
+                println!("My index is {:?}", index);
+            })
+        })
+        .collect();
+
+    for t in threads {
+        t.join().unwrap();
+    }
+}
No results found