Struct cap_async_std::time::SystemTime

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pub struct SystemTime { /* fields omitted */ }

[−] 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.

Note that this SystemTime has no now, elapsed methods. To obtain the current time or measure the duration to the current time, you must 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.

Implementations

impl SystemTime[−]

pub fn from_std(std: SystemTime) -> SystemTime[−]

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

pub const fn into_std(self) -> SystemTime[−]

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

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.

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.

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.

Trait Implementations

impl Add<Duration> for SystemTime[+]

type Output = SystemTime

The resulting type after applying the + operator.

pub 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.

impl AddAssign<Duration> for SystemTime[+]

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pub fn add_assign(&mut self, other: Duration)[−]

Performs the += operation.

impl Clone for SystemTime[+]

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pub fn clone(&self) -> SystemTime[−]

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Copy for SystemTime

impl Debug for SystemTime[+]

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

Formats the value using the given formatter.

impl Eq for SystemTime

impl Hash for SystemTime[+]

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pub fn hash<__H>(&self, state: &mut __H) where
    __H: Hasher, [−]

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl Ord for SystemTime[+]

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pub fn cmp(&self, other: &SystemTime) -> Ordering[−]

This method returns an Ordering between self and other.

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#[must_use]fn max(self, other: Self) -> Self[−]

Compares and returns the maximum of two values.

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#[must_use]fn min(self, other: Self) -> Self[−]

Compares and returns the minimum of two values.

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#[must_use]fn clamp(self, min: Self, max: Self) -> Self[−]

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

Restrict a value to a certain interval.

impl PartialEq<SystemTime> for SystemTime[+]

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pub fn eq(&self, other: &SystemTime) -> bool[−]

This method tests for self and other values to be equal, and is used by ==.

pub fn ne(&self, other: &SystemTime) -> bool[−]

This method tests for !=.

impl PartialOrd<SystemTime> for SystemTime[+]

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pub fn partial_cmp(&self, other: &SystemTime) -> Option<Ordering>[−]

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

pub fn lt(&self, other: &SystemTime) -> bool[−]

This method tests less than (for self and other) and is used by the < operator.

pub fn le(&self, other: &SystemTime) -> bool[−]

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

pub fn gt(&self, other: &SystemTime) -> bool[−]

This method tests greater than (for self and other) and is used by the > operator.

pub fn ge(&self, other: &SystemTime) -> bool[−]

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

impl StructuralEq for SystemTime

impl StructuralPartialEq for SystemTime

impl Sub<Duration> for SystemTime[+]

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type Output = SystemTime

The resulting type after applying the - operator.

pub fn sub(self, dur: Duration) -> SystemTime[−]

Performs the - operation.

impl SubAssign<Duration> for SystemTime[+]

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pub fn sub_assign(&mut self, other: Duration)[−]

Performs the -= operation.