Struct tokio_timer::Delay

pub struct Delay { /* private fields */ }

A future that completes at a specified instant in time.

Instances of Delay perform no work and complete with () once the specified deadline has been reached.

Delay has a resolution of one millisecond and should not be used for tasks that require high-resolution timers.

Cancellation

Canceling a Delay is done by dropping the value. No additional cleanup or other work is required.

Implementations

impl Delay

pub fn deadline(&self) -> Instant

Returns the instant at which the future will complete.

pub fn is_elapsed(&self) -> bool

Returns true if the Delay has elapsed

A Delay is elapsed when the requested duration has elapsed.

pub fn reset(&mut self, deadline: Instant)

Reset the Delay instance to a new deadline.

Calling this function allows changing the instant at which the Delay future completes without having to create new associated state.

This function can be called both before and after the future has completed.

Trait Implementations

impl Debug for Delay

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

Formats the value using the given formatter.

impl FusedFuture for Delay

fn is_terminated(&self) -> bool

Returns true if the underlying future should no longer be polled.

impl Future for Delay

type Output = ()

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>

Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.