Struct Wal 

pub struct Wal { /* private fields */ }

Write-Ahead Log for durable transaction logging

Implementations

impl Wal

pub fn open<P: AsRef<Path>>(path: P, batch_size: usize) -> Result<Self>

Open or create WAL file.

Arguments

• path - Path to WAL file
• batch_size - Number of entries to batch before fsync

pub fn append(&self, entry: WalEntry) -> Result<()>

Append entry to WAL (buffered).

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

Flush pending entries to disk with fsync.

pub fn replay(&self) -> Result<Vec<WalEntry>>

Replay WAL entries from disk.

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

Truncate WAL after successful checkpoint.

pub fn entry_count(&self) -> u64

Get current total entry count (persisted + pending).