Code shared from the Rust Playground

playground.rs

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
    }
}

core::alloc

received_1103165434034541.mp4