Struct Deadline 

pub(crate) struct Deadline {
    entry: Arc<Entry>,
}

A registered deadline. Cheap to clone (one Arc + one token clone).

Dropping every clone abandons the deadline: the wheel drops the slot at its own instant, or at the next sweep, whichever comes first. There is no unregister call.

Fields

entry: Arc<Entry>

Implementations

impl Deadline

pub(crate) fn token(&self) -> &CancellationToken

The token the wheel cancels once Instant::now() >= at.

Level-triggered: awaiting it after the wheel has fired resolves immediately, so the engine may create and drop token().cancelled() on every select! iteration without a lost-wakeup race and without re-registering with the wheel.

fn already_due() -> Self

A deadline that has already passed. Allocates one token, never touches the wheel, never starts the release thread.

Trait Implementations

impl Clone for Deadline

fn clone(&self) -> Deadline

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Deadline

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

Formats the value using the given formatter.