Hlc

coven::sync::hlc

Struct Hlc 

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

Hybrid Logical Clock.

Thread-safe via interior Mutex. Create one per application lifetime, pass by reference to write methods.

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impl Hlc

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pub fn new(device_id: String) -> Self

Create a new HLC with the given device ID.

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pub fn now(&self) -> Timestamp

Generate a new timestamp. Guaranteed to be greater than any previous timestamp returned by this clock.

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pub fn update(&self, remote: &Timestamp) -> Timestamp

Merge with a remote timestamp. Advances the local clock to maintain the “happened after” relationship. Returns the new local timestamp.

Implements a clock skew guard: if the remote’s wall time is more than 24 hours ahead of local wall time, we accept the remote but don’t advance our physical clock past local wall time.

Auto Trait Implementations§

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impl !Freeze for Hlc

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impl !RefUnwindSafe for Hlc

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impl Send for Hlc

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impl Sync for Hlc

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impl Unpin for Hlc

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impl !UnwindSafe for Hlc

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
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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> PolicyExt for T
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where T: Policy<B, E>, P: Policy<B, E>,

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type Output = T

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