Struct Waiter 

pub struct Waiter { /* private fields */ }

A handle used to await the event. Cheap to clone; all clones share state.

Dropping the last Waiter makes Signaler::signal report NoReceivers.

Implementations

impl Waiter

pub fn wait(&self) -> Wait<'_>

Return a future that resolves when the event fires (Ok(())) or when every signaler is dropped first (Err(Disconnected)).

pub fn try_wait(&self) -> Result<(), TryWaitError>

Non-blocking snapshot. Ok(()) if fired, Err(Pending) if still waiting, Err(Disconnected) if no signal can ever arrive.

pub fn is_signaled(&self) -> bool

Whether the event has already fired.

pub fn is_disconnected(&self) -> bool

Whether all signalers disconnected without firing.

pub fn signaler_count(&self) -> usize

Number of live Signaler handles (a snapshot).

pub fn waiter_count(&self) -> usize

Number of live Waiter handles (a snapshot).

Trait Implementations

impl Clone for Waiter

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Drop for Waiter

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.