Struct AccessCell 

pub struct AccessCell<T> { /* private fields */ }

A cell holding a value of type T with re-entrant mutable access.

The first caller of access runs immediately; any further calls to access from within that closure (or its queue) are enqueued and executed in order after the current work completes.

Implementations

impl<T> AccessCell<T>

pub fn new(value: T) -> Self

Creates a new AccessCell wrapping value.

pub fn access(&self, f: impl FnOnce(&mut T) + 'static)

Runs f with exclusive mutable access to the inner value.

If called while another access closure is running (re-entrant call), f is queued and run after the current closure and any other queued closures finish.

pub fn access_mut(&self) -> &mut T

Returns a mutable reference to the inner value.

Safety

Only call this while you are inside an access closure (or while draining the queue). Otherwise you may create aliasing mutable references.

pub fn access_ref(&self) -> &T

Returns an immutable reference to the inner value.

Safe to call at any time; no closure is running when you use this for read-only access.