This crate provides a trait for universal reference-counted lock
with internal mutability
allowing multiple readers or a single writer,
which may represent either Rc<RefCell<T>> or Arc<RwLock<T>>.
This crate provides a trait for universal reference-counted lock
with internal mutability
allowing multiple readers or a single writer,
which may represent either Rc<RefCell<T>> or Arc<RwLock<T>>.