Struct rcu_clean::RcRcu

source ·
pub struct RcRcu<T> { /* private fields */ }
Expand description

A reference counted pointer that allows interior mutability

The RcRcu is functionally roughly equivalent to Rc<RefCell<T>>, except that reads (of the old value) may happen while a write is taking place. Reads are actually slightly slower than an Rc<RefCell<T>>, so mostly you gaining ergonomics by using this.

let x = rcu_clean::RcRcu::new(3);
let y: &usize = &(*x);
let z = x.clone();
*x.update() = 7; // Wow, we are mutating something we have borrowed!
assert_eq!(*y, 3); // the old reference is still valid.
assert_eq!(*x, 7); // but the pointer now points to the new value.
assert_eq!(*z, 7); // but the cloned pointer also points to the new value.

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Immutably borrows from an owned value. Read more
Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
The resulting type after dereferencing.
Dereferences the value.

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Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.