Enum bastion_executor::run_queue::Steal

#[must_use]pub enum Steal<T> {
    Empty,
    Success(T),
    Retry,
}

Possible outcomes of a steal operation.

Variants

Empty

The queue was empty at the time of stealing.

Success(T)

At least one task was successfully stolen.

Retry

The steal operation needs to be retried.

Implementations

impl<T> Steal<T>

pub fn is_empty(&self) -> bool

Returns true if the queue was empty at the time of stealing.

pub fn is_success(&self) -> bool

Returns true if at least one task was stolen.

pub fn is_retry(&self) -> bool

Returns true if the steal operation needs to be retried.

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

Returns the result of the operation, if successful.

pub fn or_else<F>(self, f: F) -> Steal<T> where
    F: FnOnce() -> Steal<T>, 

If no task was stolen, attempts another steal operation.

Returns this steal result if it is Success. Otherwise, closure f is invoked and then:

• If the second steal resulted in Success, it is returned.
• If both steals were unsuccessful but any resulted in Retry, then Retry is returned.
• If both resulted in None, then None is returned.

Trait Implementations

impl<T: Clone> Clone for Steal<T>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Copy> Copy for Steal<T>

impl<T> Debug for Steal<T>

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

Formats the value using the given formatter.

impl<T: Eq> Eq for Steal<T>

impl<T> FromIterator<Steal<T>> for Steal<T>

fn from_iter<I>(iter: I) -> Steal<T> where
    I: IntoIterator<Item = Steal<T>>, 

Consumes items until a Success is found and returns it.

If no Success was found, but there was at least one Retry, then returns Retry. Otherwise, Empty is returned.

impl<T: PartialEq> PartialEq<Steal<T>> for Steal<T>

fn eq(&self, other: &Steal<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Steal<T>) -> bool

This method tests for !=.

impl<T> StructuralEq for Steal<T>

impl<T> StructuralPartialEq for Steal<T>