Struct CrdtMeta 

pub struct CrdtMeta {
    pub timestamp: HlcTimestamp,
    pub node_id: NodeId,
}

Per-entry CRDT metadata for LWW (Last-Writer-Wins) conflict resolution.

20 bytes on wire: entry_kind (1B) + padding (3B) + HLC timestamp (12B) + NodeId (8B).

Conflict resolution: higher timestamp wins, NodeId tiebreaker. This forms a join-semilattice with a total order, guaranteeing:

• Commutativity: merge(a, b) == merge(b, a)
• Associativity: merge(merge(a, b), c) == merge(a, merge(b, c))
• Idempotency: merge(a, a) == a

Fields

timestamp: HlcTimestamp

node_id: NodeId

Implementations

impl CrdtMeta

pub fn new(timestamp: HlcTimestamp, node_id: NodeId) -> Self

Create new CRDT metadata.

pub fn to_bytes(&self) -> [u8; 20]

Serialize to 20 bytes: HLC (12B big-endian) + NodeId (8B big-endian).

pub fn from_bytes(b: &[u8; 20]) -> Self

Deserialize from 20 bytes.

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

LWW comparison: higher timestamp wins, NodeId tiebreaker.

This total order is the foundation of LWW conflict resolution. If self > other, self is the winner.

pub fn wins_over(&self, other: &Self) -> bool

Returns true if self wins over other in LWW resolution.

Trait Implementations

impl Clone for CrdtMeta

fn clone(&self) -> CrdtMeta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CrdtMeta

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

Formats the value using the given formatter.

impl Hash for CrdtMeta

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 PartialEq for CrdtMeta

fn eq(&self, other: &CrdtMeta) -> 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 Copy for CrdtMeta

impl Eq for CrdtMeta

impl StructuralPartialEq for CrdtMeta