Struct raft_consensus::persistent_log::mem::MemLog

pub struct MemLog { /* fields omitted */ }

This is a Log implementation that stores entries in a simple in-memory vector. Other data is stored in a struct. It is chiefly intended for testing.

Panic

No bounds checking is performed and attempted access to non-existing log indexes will panic.

Methods

impl MemLog

pub fn new() -> MemLog

Trait Implementations

impl Clone for MemLog

fn clone(&self) -> MemLog

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MemLog

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

Formats the value using the given formatter.

impl Log for MemLog

type Error = Error

fn current_term(&self) -> Result<Term, Error>

Returns the latest known term.

fn set_current_term(&mut self, term: Term) -> Result<(), Error>

Sets the current term to the provided value. The provided term must be greater than the current term. The voted_for value will be reset.

fn inc_current_term(&mut self) -> Result<Term, Error>

Increment the current term. The voted_for value will be reset.

fn voted_for(&self) -> Result<Option<ServerId>, Error>

Returns the candidate id of the candidate voted for in the current term (or none).

fn set_voted_for(&mut self, address: ServerId) -> Result<(), Error>

Sets the candidate id voted for in the current term.

fn latest_log_index(&self) -> Result<LogIndex, Error>

Returns the index of the latest persisted log entry (0 if the log is empty).

fn latest_log_term(&self) -> Result<Term, Error>

Returns the term of the latest persisted log entry (0 if the log is empty).

fn entry<W: Write>(     &self,     index: LogIndex,     buf: Option<W> ) -> Result<Term, Error>

Returns the term for the entry at the provided log index writing entry itself to writer if requested

fn append_entries<R: Read, I: Iterator<Item = (Term, R)>>(     &mut self,     from: LogIndex,     entries: I ) -> Result<(), Self::Error>

Appends the provided entries to the log beginning at the given index.

impl Default for MemLog

fn default() -> Self

Returns the "default value" for a type.