Struct ChainSnapshot 

pub struct ChainSnapshot { /* private fields */ }

What a fold held after the line at seq, and the chain hash that names that line.

Implementations

impl ChainSnapshot

pub fn cut( fold_version: u32, seq: Seq, line: &[u8], views: Vec<u8>, ) -> ChainSnapshot

Cut a snapshot after line, the raw line (without its \n) at seq.

pub fn fold_version(&self) -> u32

pub fn seq(&self) -> Seq

pub fn views(&self) -> &[u8]

pub fn same_line(&self, other: &ChainSnapshot) -> bool

Whether other was cut at the same line of the same ledger: the same seq and the same chain hash, whatever each fold holds.

pub fn fit(&self, line_at_seq: &[u8]) -> SnapshotFit

Judge the raw line a positioned read found at Self::seq.

pub fn resume(&self) -> Result<LineCheck, AxError>

The chain state after the snapshot’s line: the next line must carry prev = line_hash and the seq after seq.

Errors

What Seq::next says when seq is the last seq there is.

Trait Implementations

impl Clone for ChainSnapshot

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChainSnapshot

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

Formats the value using the given formatter.

impl Eq for ChainSnapshot

impl PartialEq for ChainSnapshot

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ChainSnapshot