Struct TakeCell

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

Inverse of a OnceCell. It initializes with a value, which then can be raced by other threads to take.

Once the value is taken, it can never be taken again.

Implementations

impl<T> TakeCell<T>

pub const fn new(v: T) -> Self

Creates a new TakeCell

pub const fn new_taken() -> Self

Creates a TakeCell that has already been taken

pub fn is_taken(&self) -> bool

Checks if the cell has alredy been taken

pub fn try_take(&self) -> Option<T>

Attempts to take the value from the cell, returning None if the value has already been taken

pub fn try_take_mut(&mut self) -> Option<T>

Attempts to take the value from the cell through non-atomic operations, returning None if the value has already been taken

Safety

This method is safe because the mutable reference indicates we are the only thread with access to the cell, so atomic operations aren’t required.

Trait Implementations

impl<T> Drop for TakeCell<T>

fn drop(&mut self)

Executes the destructor for this type.

impl<T: Send> Send for TakeCell<T>

impl<T: Sync> Sync for TakeCell<T>