Struct Instant 

pub struct Instant(/* private fields */);

A point on the caller’s monotonic timeline, in nanoseconds since an epoch the caller chooses.

+ and - with a Duration saturate at Instant::MAX and at the epoch, and the time from a later instant to an earlier one, earlier - later, is Duration::ZERO.

Implementations

impl Instant

pub const ZERO: Self

The epoch.

pub const MAX: Self

The latest representable instant, about 584 years after the epoch.

pub const fn from_nanos(nanos: u64) -> Self

The instant nanos nanoseconds after the epoch.

pub const fn from_micros(micros: u64) -> Self

The instant micros microseconds after the epoch, saturating at Instant::MAX.

pub const fn from_millis(millis: u64) -> Self

The instant millis milliseconds after the epoch, saturating at Instant::MAX.

pub const fn from_secs(secs: u64) -> Self

The instant secs seconds after the epoch, saturating at Instant::MAX.

pub const fn as_nanos(self) -> u64

Nanoseconds since the epoch.

pub const fn as_micros(self) -> u64

Whole microseconds since the epoch, rounded toward zero.

pub const fn as_millis(self) -> u64

Whole milliseconds since the epoch, rounded toward zero.

pub const fn as_secs(self) -> u64

Whole seconds since the epoch, rounded toward zero.

pub const fn checked_add(self, duration: Duration) -> Option<Self>

self + duration, or None past Instant::MAX.

pub const fn saturating_add(self, duration: Duration) -> Self

self + duration, clamped at Instant::MAX.

pub const fn checked_sub(self, duration: Duration) -> Option<Self>

self - duration, or None before the epoch.

pub const fn saturating_sub(self, duration: Duration) -> Self

self - duration, clamped at the epoch.

pub const fn checked_duration_since(self, earlier: Self) -> Option<Duration>

The time from earlier to self, or None when earlier is later.

pub const fn saturating_duration_since(self, earlier: Self) -> Duration

The time from earlier to self, or zero when earlier is later.

pub const fn min(self, other: Self) -> Self

The earlier of self and other: Ord::min for a const context.

pub const fn max(self, other: Self) -> Self

The later of self and other: Ord::max for a const context.

Trait Implementations

impl Add<Duration> for Instant

fn add(self, rhs: Duration) -> Self

Saturating, as Instant::saturating_add.

type Output = Instant

The resulting type after applying the + operator.

impl AddAssign<Duration> for Instant

fn add_assign(&mut self, rhs: Duration)

Saturating, as Instant::saturating_add.

impl Clone for Instant

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Instant

impl Debug for Instant

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

Formats the value using the given formatter.

impl Eq for Instant

impl Hash for Instant

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Instant

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

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

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

Restrict a value to a certain range.

impl PartialEq for Instant

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for Instant

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

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Instant

impl Sub for Instant

fn sub(self, rhs: Self) -> Duration

Saturating, as Instant::saturating_duration_since.

type Output = Duration

The resulting type after applying the - operator.

impl Sub<Duration> for Instant

fn sub(self, rhs: Duration) -> Self

Saturating, as Instant::saturating_sub.

type Output = Instant

The resulting type after applying the - operator.

impl SubAssign<Duration> for Instant

fn sub_assign(&mut self, rhs: Duration)

Saturating, as Instant::saturating_sub.