How to unlock a rwlock without dropping the lock

Question

How to unlock a rwlock? I can't drop the lock since i need it more than 1 time. I have some code like this:

struct Abc {
    lock: RwLock<()>,
    data: usize,
}

let a = Abc {
    RwLock::new(()),
    data: 0,
};

a.lock.read().unwrap();
// do something with data
// now i need to unlock a.lock so others threads can use it

Answer 1

As @Michael Anderson said, the RwLock is unlocked when the guards is dropped, not the RwLock itself.