Struct RwLockOption 

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

Implementations

impl<T> RwLockOption<T>

pub async fn get_or_try_init<E, F: Future<Output = Result<T, E>>>( &self, f: impl FnOnce() -> F, ) -> Result<RwLockOptionGuard<T>, E>

pub async fn get_mut_or_try_init<E, F: Future<Output = Result<T, E>>>( &self, f: impl FnOnce() -> F, ) -> Result<RwLockOptionWriteGuard<T>, E>

pub fn is_some(&self) -> Option<bool>

pub fn try_read(&self) -> Option<RwLockOptionGuard<T>>

pub async fn clear(&self) -> Result<()>

pub fn new() -> Self

Trait Implementations

impl<T: Clone> Clone for RwLockOption<T>

fn clone(&self) -> RwLockOption<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Default for RwLockOption<T>

fn default() -> Self

Returns the “default value” for a type.