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WriteAheadLog

storage::wal

Struct WriteAheadLog 

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pub struct WriteAheadLog { /* private fields */ }
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Write-Ahead Log manager

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impl WriteAheadLog

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

Create a new WAL

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pub fn append(&self, entry: WalEntry) -> Result<u64>

Append an entry to the WAL

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pub fn checkpoint(&self) -> Result<u64>

Write a checkpoint marker

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

Recover entries since last checkpoint

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pub fn truncate(&self, up_to_lsn: u64) -> Result<u64>

Truncate WAL up to (and including) the given LSN

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pub fn current_lsn(&self) -> u64

Get current LSN

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pub fn stats(&self) -> WalStats

Get WAL statistics

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

Flush WAL to disk

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