Struct Timer

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pub struct Timer { /* private fields */ }
Expand description

A timer, used to schedule execution of callbacks in a given future.

If the callback does not provide the new time period, the next execution will be scheduled for a distant future.

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impl Timer

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pub fn new( callback: impl Fn() -> Option<NaiveDateTime> + Send + 'static, ) -> Self

Creates a Timer instance.

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pub fn with_graceful_shutdown<O>( self, shutdown: impl Future<Output = O> + Send + 'static, ) -> Self

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pub async fn schedule(&self, deadline: NaiveDateTime) -> Result<(), TimerError>

Schedule for execution after a delay.

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pub fn scheduler(&self) -> Scheduler

Creates a handler to schedule new executions.

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impl IntoFuture for Timer

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type Output = ()

The output that the future will produce on completion.
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type IntoFuture = Pin<Box<dyn Future<Output = <Timer as IntoFuture>::Output> + Send>>

Which kind of future are we turning this into?
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fn into_future(self) -> Self::IntoFuture

Creates a future from a value. Read more

Auto Trait Implementations§

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impl Freeze for Timer

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impl !RefUnwindSafe for Timer

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impl Send for Timer

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impl !Sync for Timer

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impl Unpin for Timer

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impl !UnwindSafe for Timer

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more