rust-play · January 24, 2020 16:19 · Jan 24, 2020
diff --git a/playground.rs b/playground.rs
@@ -0,0 +1,26 @@
+struct Inner {
+  a: A,
+}
+
+impl Inner {
+    fn fun(&mut self) {
+        self.a.something();
+    }
+    fn fun2(&mut self, outer: &Arc<Outer>) {
+        self.a.something2(outer.b);
+    }
+}
+
+struct Outer {
+  b: B,
+  inner: Mutex<Inner>,
+}
+
+impl Outer {
+    fn mainfun(self: Arc<Self>) {
+        let mut inner = self.inner.lock();
+        // do something with held locks
+        inner.fun2(&self);
+        // do something more
+    }
+}