Struct Completable 

pub struct Completable<T> { /* private fields */ }

Implementations

impl<T> Completable<T>

pub fn new(val: T) -> Self

pub fn complete_exclusive(&self, f: impl FnOnce() -> T) -> bool

Completes this instance in exclusive mode, wherein the given closure is atomically invoked if and only if the instance is incomplete. No other thread may succeed in completing this instance in the meantime.

This method is used when f represents an expensive computation, the result of which should not be discarded. Conversely, if this instance is already complete, f should not be attempted.

Returns true if and only if f was invoked.

pub fn complete(&self, val: T) -> bool

Completes this instance, assigning val if the instance is incomplete. Otherwise, the existing completed value is preserved.

Returns true if and only if val was assigned.

pub fn is_complete(&self) -> bool

pub fn get(&self) -> Completed<'_, T>

pub fn peek<'a>(&'a self) -> impl Deref<Target = Option<T>> + 'a

pub fn try_get<'a>( &'a self, duration: Duration, ) -> impl Deref<Target = Option<T>> + 'a

pub fn into_inner(self) -> Option<T>

Trait Implementations

impl<T: Debug> Debug for Completable<T>

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

Formats the value using the given formatter.

impl<T: Default> Default for Completable<T>

fn default() -> Completable<T>

Returns the “default value” for a type.