Struct DeltaChain 

pub struct DeltaChain { /* private fields */ }

A chain of deltas applied to a base block. Invariant: deltas.len() <= max_chain_len.

Implementations

impl DeltaChain

pub fn new(base_data: Vec<f32>, max_chain_len: u8) -> Self

Create a new chain with a base block.

pub fn append(&mut self, delta: DeltaRecord) -> Result<(), StoreError>

Append a delta. Returns Err(StoreError::DeltaChainTooLong) at max length.

pub fn reconstruct(&self) -> Vec<f32>

Reconstruct the current state by applying all deltas to the base.

pub fn compact(&mut self)

Compact the chain: apply all deltas to base, clear delta list.

pub fn chain_len(&self) -> usize

Number of deltas in the chain.

pub fn needs_compaction(&self) -> bool

Whether the chain needs compaction (at max length).

pub fn total_bytes(&self) -> usize

Total storage bytes: base + serialized size of all deltas.

Trait Implementations

impl Clone for DeltaChain

fn clone(&self) -> DeltaChain

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DeltaChain

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

Formats the value using the given formatter.