Struct InMemoryLedger 

pub struct InMemoryLedger { /* private fields */ }

Thread-safe in-memory reference implementation of an append-only audit ledger.

Implementations

impl InMemoryLedger

pub fn new() -> Self

Construct a new empty in-memory audit ledger.

Trait Implementations

impl AuditLedgerReader for InMemoryLedger

fn get_event(&self, sequence: u64) -> Result<Option<AuditEvent>, LedgerError>

Fetch an individual event by its 1-indexed sequence number.

fn head(&self) -> Result<Option<AuditEvent>, LedgerError>

Retrieve the most recently committed event from the head of the chain.

fn all_events(&self) -> Result<Vec<AuditEvent>, LedgerError>

Return an in-order snapshot of all events committed to the ledger.

impl AuditLedgerWriter for InMemoryLedger

fn append( &mut self, event_type: &str, actor: &str, payload: &str, ) -> Result<AuditEvent, LedgerError>

Cryptographically append a new action record to the ledger.

impl AuditVerifier for InMemoryLedger

fn verify_chain(&self) -> Result<ChainVerificationReport, LedgerError>

Traverse the ledger from genesis to head, verifying all hashes and sequence numbers.

impl Clone for InMemoryLedger

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for InMemoryLedger

fn default() -> Self

Returns the “default value” for a type.