Struct SharedRw 

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

Thread-safe shared value using RwLock for concurrent reads and exclusive writes.

Implementations

impl<T> SharedRw<T>

pub fn new(v: T) -> Self

Create a new shared value.

pub fn read<F, R>(&self, f: F) -> Result<R, PoisonError<RwLockReadGuard<'_, T>>>

where F: FnOnce(&T) -> R,

Execute a closure with read-only access.

Caution: f runs while the read lock is held. Avoid re-entering this SharedRw from inside the closure, especially for writes.

pub fn write<F, R>( &self, f: F, ) -> Result<R, PoisonError<RwLockWriteGuard<'_, T>>>

where F: FnOnce(&mut T) -> R,

Execute a closure with mutable access.

Caution: f runs while the write lock is held. Avoid re-entering this SharedRw from inside the closure.

pub fn get(&self) -> Result<T, PoisonError<RwLockReadGuard<'_, T>>>

where T: Clone,

Get a cloned snapshot of the value.

pub fn set(&self, value: T) -> Result<(), PoisonError<RwLockWriteGuard<'_, T>>>

Replace the inner value.

Trait Implementations

impl<T> Clone for SharedRw<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> Debug for SharedRw<T>

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

Formats the value using the given formatter.