Struct LocalWAL 

pub struct LocalWAL { /* private fields */ }

A serialized WAL buffer backed by an in-memory byte vector.

Records are written in the same binary format as the global WAL (see WAL::flush_to_disk()), so the buffer can be bulk-copied directly into the global WAL file on commit.

Implementations

impl LocalWAL

pub fn new() -> Self

Create a new empty LocalWAL buffer.

pub fn log_record(&mut self, record: &WALRecord)

Log a pre-built record (drain path for typed SQL-path records, P60.2).

pub fn log_insert(&mut self, table_id: u64, data: Vec<u8>)

Log a table row insertion.

pub fn log_delete(&mut self, table_id: u64, row_id: u64)

Log a table row deletion.

pub fn log_update( &mut self, table_id: u64, row_id: u64, column: u32, data: Vec<u8>, )

Log a table row update.

pub fn log_column_write( &mut self, table_id: u64, col_id: u32, page_id: u64, data: Vec<u8>, )

Log a column page write.

pub fn log_begin_transaction(&mut self)

Log the beginning of a write transaction.

pub fn log_commit(&mut self, transaction_id: u64)

Log a commit (will be flushed to global WAL on commit).

pub fn log_rollback(&mut self, transaction_id: u64)

Log a rollback.

pub fn log_checkpoint(&mut self)

Log a checkpoint marker.

pub fn buffer(&self) -> &[u8]

Return a reference to the serialized buffer.

pub fn into_buffer(self) -> Vec<u8>

Consume and return the serialized buffer (for bulk-copy to global WAL).

pub fn count(&self) -> usize

Number of records buffered.

pub fn size(&self) -> usize

Total size of buffered data in bytes.

pub fn is_empty(&self) -> bool

Whether the buffer is empty.

pub fn clear(&mut self)

Clear all buffered records.

Trait Implementations

impl Debug for LocalWAL

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for LocalWAL

fn default() -> LocalWAL

Returns the “default value” for a type.