Struct RaftLog 

pub struct RaftLog { /* private fields */ }

In-memory log with persistent backing

Implementations

impl RaftLog

pub fn new() -> Self

Create a new empty log

pub fn append(&mut self, term: Term, command: Command) -> LogIndex

Append a new entry to the log

pub fn append_entries(&mut self, entries: Vec<LogEntry>) -> RaftResult<()>

Append multiple entries to the log

pub fn get(&self, index: LogIndex) -> Option<&LogEntry>

Get an entry by index

pub fn get_entries_from( &self, start_index: LogIndex, max_count: usize, ) -> Vec<LogEntry>

Get entries starting from a given index

pub fn get_term(&self, index: LogIndex) -> Option<Term>

Get the term of an entry by index

pub fn last_index(&self) -> LogIndex

Get the index of the last entry

pub fn last_term(&self) -> Term

Get the term of the last entry

pub fn truncate_from(&mut self, from_index: LogIndex) -> RaftResult<()>

Delete entries from a given index onwards

pub fn matches(&self, index: LogIndex, term: Term) -> bool

Check if the log contains an entry at the given index with the given term

pub fn commit_index(&self) -> LogIndex

Get the commit index

pub fn set_commit_index(&mut self, index: LogIndex) -> RaftResult<()>

Set the commit index (must be monotonically increasing)

pub fn applied_index(&self) -> LogIndex

Get the applied index

pub fn set_applied_index(&mut self, index: LogIndex) -> RaftResult<()>

Set the applied index (must be monotonically increasing)

pub fn get_uncommitted_entries(&self) -> Vec<LogEntry>

Get entries that are committed but not yet applied

pub fn is_empty(&self) -> bool

Check if the log is empty

pub fn len(&self) -> usize

Get the number of entries in the log

Trait Implementations

impl Default for RaftLog

fn default() -> Self

Returns the “default value” for a type.