Struct cap_std::time::SystemTime

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

A measurement of the system clock, useful for talking to external entities like the file system or other processes.

This corresponds to std::time::SystemTime.

This SystemTime has no now, elapsed methods. To obtain the current time or measure the duration to the current time, first obtain a SystemClock, and then call SystemClock::now or SystemClock::elapsed instead. The UNIX_EPOCH constant is at SystemClock::UNIX_EPOCH.

Similar to the filetime crate, when RUSTFLAGS=--cfg emulate_second_only_system is set, SystemTime will round times from the operating system down to the second. This emulates the behavior of some file systems, mostly HFS, allowing debugging on other hardware.

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impl SystemTime

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pub fn from_std(std: SystemTime) -> SystemTime

Constructs a new instance of Self from the given std::time::SystemTime.

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pub const fn into_std(self) -> SystemTime

Constructs a new instance of std::time::SystemTime from the given Self.

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pub fn duration_since( &self, earlier: SystemTime, ) -> Result<Duration, SystemTimeError>

Returns the amount of time elapsed from another instant to this one.

This corresponds to std::time::SystemTime::duration_since.

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

Returns Some(t) where t is the time self + duration if t can be represented as SystemTime (which means it’s inside the bounds of the underlying data structure), None otherwise.

This corresponds to std::time::SystemTime::checked_add.

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pub fn checked_sub(&self, duration: Duration) -> Option<SystemTime>

Returns Some(t) where t is the time self - duration if t can be represented as SystemTime (which means it’s inside the bounds of the underlying data structure), None otherwise.

This corresponds to std::time::SystemTime::checked_sub.

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impl Add<Duration> for SystemTime

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fn add(self, dur: Duration) -> SystemTime

§Panics

This function may panic if the resulting point in time cannot be represented by the underlying data structure. See SystemTime::checked_add for a version without panic.

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type Output = SystemTime

The resulting type after applying the + operator.
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impl AddAssign<Duration> for SystemTime

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fn add_assign(&mut self, other: Duration)

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

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fn clone(&self) -> SystemTime

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 SystemTime

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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 Hash for SystemTime

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

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 SystemTime

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fn cmp(&self, other: &SystemTime) -> 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 + PartialOrd,

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

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

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

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type Output = SystemTime

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

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

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fn sub_assign(&mut self, other: Duration)

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

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impl Eq for SystemTime

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impl StructuralPartialEq for SystemTime

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, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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, 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.