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UnixClock

Struct UnixClock 

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

Real system clock using POSIX clock_gettime(CLOCK_REALTIME).

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impl UnixClock

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pub fn new() -> Self

Create a new UnixClock. Probes whether clock adjustment is available.

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impl Clock for UnixClock

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fn now(&self) -> Result<NtpTimestamp, ClockError>

Read current time from this clock.
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fn step(&self, offset: NtpDuration) -> Result<(), ClockError>

Apply a step adjustment (instant offset). Requires privilege.
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fn adjust_frequency(&self, ppm: f64) -> Result<(), ClockError>

Apply a slew adjustment (frequency change in PPM). Requires privilege.
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fn frequency_offset(&self) -> Result<f64, ClockError>

Read current frequency offset in PPM.
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fn resolution(&self) -> NtpDuration

Get clock resolution as a duration.
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fn max_frequency_adjustment(&self) -> f64

Maximum allowed frequency adjustment in PPM.
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fn is_adjustable(&self) -> bool

Whether this clock supports discipline (has CAP_SYS_TIME or equivalent).
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impl Default for UnixClock

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fn default() -> Self

Returns the “default value” for a type. Read more

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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

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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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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, 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>

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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>,

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