Struct Deadline

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

A point in time that acts as a deadline for an operation.

A deadline internally tracks both wall-clock time and, optionally, OS monotonic time. When two deadlines are compared, monotonic time is preferred, but if one or more deadlines do not have monotonic time, wall-clock time is used.

When a deadline is serialized, only its wall-clock time is serialized. The monotonic time is not useful outside of the process that generated it, since the monotonic time is not guaranteed to be consistent across processes.

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impl Deadline

pub fn now() -> Deadline

Returns a new deadline representing the current time.

This will capture both wall-clock time and monotonic time.

pub fn instant(&self) -> Option<Instant>

The monotonic OS instant of the deadline, if there is one.

pub fn system_time(&self) -> SystemTime

The wall-clock time of the deadline.

pub fn checked_add(&self, duration: Duration) -> Option<Deadline>

Adds a duration to the deadline, returning None on overflow.

Trait Implementations§

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impl Add<Duration> for Deadline

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type Output = Deadline

The resulting type after applying the + operator.
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fn add(self, rhs: Duration) -> <Deadline as Add<Duration>>::Output

Performs the + operation. Read more
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impl Clone for Deadline

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fn clone(&self) -> Deadline

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Deadline

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

Formats the value using the given formatter. Read more
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impl From<Deadline> for Timestamp

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fn from(deadline: Deadline) -> Timestamp

Converts to this type from the input type.
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impl From<SystemTime> for Deadline

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fn from(system_time: SystemTime) -> Deadline

Converts to this type from the input type.
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impl From<Timestamp> for Deadline

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fn from(timestamp: Timestamp) -> Deadline

Converts to this type from the input type.
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impl Ord for Deadline

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fn cmp(&self, other: &Deadline) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for Deadline

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fn eq(&self, other: &Deadline) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for Deadline

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fn partial_cmp(&self, other: &Deadline) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Sub<Duration> for Deadline

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type Output = Deadline

The resulting type after applying the - operator.
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fn sub(self, rhs: Duration) -> <Deadline as Sub<Duration>>::Output

Performs the - operation. Read more
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impl Sub for Deadline

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type Output = Duration

The resulting type after applying the - operator.
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fn sub(self, rhs: Deadline) -> <Deadline as Sub>::Output

Performs the - operation. Read more
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impl Copy for Deadline

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impl Eq for Deadline

Auto Trait Implementations§

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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