Struct Instant

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pub struct Instant {
    pub millis: i64,
}
Expand description

A representation of an absolute time value.

The Instant type is a wrapper around a i64 value that represents a number of milliseconds, monotonically increasing since an arbitrary moment in time, such as system startup. Note that not all Instant need to reference the same epoch.

  • A value of 0 is inherently arbitrary.
  • A value less than 0 indicates a time before the starting point.

Instants from different sources should not be mixed as their reference points may be different and thus yield surprising durations. They may not even advance at the same rate or be steady at all.

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§millis: i64

Milliseconds since the epoch.

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impl Instant

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pub fn from_millis<T: Into<i64>>(millis: T) -> Instant

Create a new Instant from a number of milliseconds.

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pub fn from_secs<T: Into<i64>>(secs: T) -> Instant

Create a new Instant from a number of seconds.

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pub fn millis(&self) -> i64

The fractional number of milliseconds that have passed the epoch.

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pub fn secs(&self) -> i64

The number of whole seconds that have passed since the epoch.

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pub fn total_millis(&self) -> i64

The total number of milliseconds that have passed since the epoch.

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impl Add<Duration> for Instant

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type Output = Instant

The resulting type after applying the + operator.
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fn add(self, rhs: Duration) -> Instant

Performs the + operation. Read more
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impl AddAssign<Duration> for Instant

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fn add_assign(&mut self, rhs: Duration)

Performs the += operation. Read more
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impl Clone for Instant

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fn clone(&self) -> Instant

Returns a duplicate 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 Instant

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

Formats the value using the given formatter. Read more
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impl Display for Instant

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

Formats the value using the given formatter. Read more
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impl Hash for Instant

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for Instant

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fn cmp(&self, other: &Instant) -> 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 Instant

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fn eq(&self, other: &Instant) -> 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 Instant

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fn partial_cmp(&self, other: &Instant) -> 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 Instant

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type Output = Instant

The resulting type after applying the - operator.
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fn sub(self, rhs: Duration) -> Instant

Performs the - operation. Read more
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impl Sub for Instant

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type Output = Duration

The resulting type after applying the - operator.
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fn sub(self, rhs: Instant) -> Duration

Performs the - operation. Read more
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impl SubAssign<Duration> for Instant

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fn sub_assign(&mut self, rhs: Duration)

Performs the -= operation. Read more
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impl Copy for Instant

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impl Eq for Instant

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impl StructuralPartialEq for Instant

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, 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> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. 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.