Struct FileLog 

pub struct FileLog { /* private fields */ }

Filesystem append log. Each append is flushed and fsynced before returning.

A crash mid-append leaves a torn, never-acked record at the tail; open truncates it away so replay stops at the durability point of the last acked transaction and later appends extend a clean tail.

Implementations

impl FileLog

pub fn open(path: impl AsRef<Path>) -> Result<Self, LogError>

Opens or creates a log file, dropping any torn tail left by a crash.

Errors

Returns an error if the file cannot be created or a fully written record is corrupt.

Trait Implementations

impl TransactionLog for FileLog

fn append(&self, record: &TxRecord) -> Result<(), LogError>

Durably appends exactly the next transaction.

fn tx_range( &self, start: u64, end: Option<u64>, ) -> Result<Vec<TxRecord>, LogError>

Returns records in the half-open transaction range [start, end).

fn replay(&self) -> Result<Vec<TxRecord>, LogError>

Replays every committed record.