Struct WalSegmentManager 

pub struct WalSegmentManager { /* private fields */ }

WAL Segment Manager

Handles WAL segmentation, rotation, and cleanup.

Implementations

impl WalSegmentManager

pub fn new(config: SegmentConfig) -> Result<Self>

Create a new WAL segment manager

pub fn append(&self, data: &[u8]) -> Result<u64>

Append a record to the WAL, returns the LSN

pub fn create_checkpoint( &self, memtable_checksum: u64, entry_count: u64, ) -> Result<CheckpointRecord>

Create a fuzzy checkpoint

This captures the current LSN and can be used to cleanup old segments.

pub fn cleanup_old_segments(&self) -> Result<usize>

Cleanup old segments that are no longer needed

pub fn stats(&self) -> SegmentStats

Get statistics

pub fn recovery_iterator(&self, from_lsn: u64) -> RecoveryIterator<'_>

Iterator for recovery

pub fn flush(&self) -> Result<()>

Flush all pending writes

pub fn shutdown(&self) -> Result<()>

Shutdown the segment manager