Struct HlcTimestamp 

pub struct HlcTimestamp {
    pub physical: u64,
    pub logical: u32,
}

A Hybrid Logical Clock timestamp.

Totally ordered: first by physical (nanoseconds since Unix epoch), then by logical to break ties within the same nanosecond.

The Ord / PartialOrd implementations reflect causal order: a smaller timestamp happened (or could have happened) before a larger one.

Fields

physical: u64

Wall-clock component: nanoseconds since the Unix epoch.

logical: u32

Logical counter: incremented when the physical component is tied.

Implementations

impl HlcTimestamp

pub fn happened_before(self, other: HlcTimestamp) -> bool

Returns true if self causally happened before other.

Equivalent to self < other.

pub fn concurrent_with(self, other: HlcTimestamp) -> bool

Returns true if self and other are concurrent, i.e. neither happened before the other.

In HLC, two timestamps are concurrent only when they are identical — meaning they were produced by different nodes without communication at precisely the same (physical, logical) point.

pub fn to_bytes(self) -> [u8; 12]

Serialise to a 12-byte big-endian representation suitable for embedding in RPC headers or log entries.

The byte layout preserves the total order: a lexicographic comparison of the byte arrays gives the same result as Ord.

pub fn from_bytes(bytes: [u8; 12]) -> Self

Deserialise from bytes produced by to_bytes.

Trait Implementations

impl Clone for HlcTimestamp

fn clone(&self) -> HlcTimestamp

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HlcTimestamp

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

Formats the value using the given formatter.

impl Hash for HlcTimestamp

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for HlcTimestamp

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for HlcTimestamp

fn eq(&self, other: &HlcTimestamp) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for HlcTimestamp

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

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

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

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

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

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

impl Copy for HlcTimestamp

impl Eq for HlcTimestamp

impl StructuralPartialEq for HlcTimestamp