Struct RcuOptionArc 

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

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

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

Implementations

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

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

Create a new RcuOptionArc from an Option<Arc<T>>.

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

Read the value of the RcuOptionArc.

The object referenced by the RCU Arc 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<Arc<T>>)

Write the value of the RcuOptionArc.

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

pub fn to_option_arc(&self) -> Option<Arc<T>>

Create a new Option<Arc<T>> to the object referenced by the RcuOptionArc.

This function returns a new Option<Arc<T>> to the object referenced by the RcuOptionArc, potentially increasing the reference count of the object by one.

Trait Implementations

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

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

Formats the value using the given formatter.

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

fn default() -> Self

Returns the “default value” for a type.

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

fn drop(&mut self)

Executes the destructor for this type.

impl<T: Send + Sync + 'static> From<Option<Arc<T>>> for RcuOptionArc<T>

fn from(data: Option<Arc<T>>) -> Self

Converts to this type from the input type.