Struct RcuOptionCell 

pub struct RcuOptionCell<T: Send + Sync + 'static> { /* private fields */ }

An RCU (Read-Copy-Update) version of Cell<Option<T>>.

This Cell can be read from multiple threads concurrently without blocking. When the Cell is written, reads may continue to see the old value of the Cell for some period of time.

Implementations

impl<T: Send + Sync + 'static> RcuOptionCell<T>

pub fn new(data: Option<T>) -> Self

Create a new RCU Cell from a value.

pub fn read(&self) -> Option<RcuReadGuard<T>>

Read the value of the RCU Cell.

The object referenced by the RCU Cell will remain valid until the RcuReadGuard is dropped. However, another thread running concurrently might see a different value for the object.

pub fn as_ref<'a>(&self, scope: &'a RcuReadScope) -> Option<&'a T>

Returns a reference to the value of the RCU Cell.

The object referenced by the RCU Cell will remain valid until the RcuReadGuard is dropped. However, another thread running concurrently might see a different value for the object.

pub fn update(&self, data: Option<T>)

Write the value of the RCU Cell.

Concurrent readers may continue to see the old value of the Cell until the RCU state machine has made sufficient progress to ensure that no concurrent readers are holding read guards.

Trait Implementations

impl<T: Clone + Send + Sync + 'static> Clone for RcuOptionCell<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug + Send + Sync + 'static> Debug for RcuOptionCell<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Send + Sync + 'static> Default for RcuOptionCell<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T: Send + Sync + 'static> Drop for RcuOptionCell<T>

fn drop(&mut self)

Executes the destructor for this type.

impl<T: Send + Sync + 'static> From<Option<Box<T>>> for RcuOptionCell<T>

fn from(value: Option<Box<T>>) -> Self

Converts to this type from the input type.