Struct VersionVector 

pub struct VersionVector { /* private fields */ }

Version vector tracking causal progress per region.

Maps region_id → latest HLC timestamp seen from that region.

Implementations

impl VersionVector

pub fn new() -> Self

Create an empty version vector.

pub fn advance(&mut self, region_id: &str, ts: HlcTimestamp) -> bool

Update the vector entry for a region if the given timestamp is newer. Returns true if the vector was actually updated (i.e., the event is new).

pub fn is_new(&self, region_id: &str, ts: &HlcTimestamp) -> bool

Check if a timestamp from a region is new (not yet seen).

pub fn get(&self, region_id: &str) -> Option<&HlcTimestamp>

Get the latest timestamp for a region.

pub fn merge(&mut self, other: &VersionVector)

Merge another version vector into this one (pointwise max).

pub fn entries(&self) -> &BTreeMap<String, HlcTimestamp>

Get all entries.

pub fn len(&self) -> usize

Number of regions tracked.

pub fn is_empty(&self) -> bool

Check if empty.

Trait Implementations

impl Clone for VersionVector

fn clone(&self) -> VersionVector

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VersionVector

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

Formats the value using the given formatter.

impl Default for VersionVector

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for VersionVector

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for VersionVector

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.