Struct AtomicOptionArc

pub struct AtomicOptionArc<T>(/* private fields */);

An atomic pointer for Option<Arc>.

This is similar to AtomicArc, but allows null values.

Implementations

impl<T> AtomicOptionArc<T>

pub fn new(value: Arc<T>) -> Self

Creates a AtomicOptionArc with the value.

pub fn load(&self, order: Ordering) -> Option<Arc<T>>

Loads an Arc from the pointer.

Returns None if the pointer is null.

pub fn swap(&self, value: Option<Arc<T>>, order: Ordering) -> Option<Arc<T>>

Stores an Arc into the pointer, returning the previous value.

pub fn compare_exchange( &self, current: Option<&Arc<T>>, new: Option<&Arc<T>>, success: Ordering, failure: Ordering, ) -> Result<Option<Arc<T>>, Option<Arc<T>>>

Stores an Arc into the pointer if the current value is the same as current.

Trait Implementations

impl<T> Default for AtomicOptionArc<T>

fn default() -> Self

Returns the “default value” for a type.