Struct MemoryTxnManager 

pub struct MemoryTxnManager { /* private fields */ }

A transaction manager backed by an in-memory map and optional WAL.

Implementations

impl MemoryTxnManager

pub fn new_with_limit(limit: Option<usize>) -> Self

Creates an in-memory manager with an optional memory limit.

pub fn memory_stats(&self) -> MemoryStats

Returns current memory usage statistics.

pub fn set_memory_limit(&self, limit: Option<usize>)

Update the configured memory limit at runtime.

pub fn snapshot(&self) -> Vec<(Key, Value)>

Returns a snapshot clone of all key/value pairs.

pub fn clear_all(&self)

Clears all data and resets memory accounting.

pub fn compact_with_limit<F>( &self, input_bytes: usize, output_bytes: usize, run: F, ) -> Result<bool>

where F: FnOnce() -> Result<()>,

Runs compaction if it can fit within the configured memory limit. Returns Ok(true) when compaction executed, Ok(false) when skipped.

pub fn compact_in_memory(&self) -> Result<bool>

In-memory compaction entrypoint that rebuilds the map while honoring memory limits.

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

Flushes the current in-memory data to an SSTable file.

Trait Implementations

impl<'a> TxnManager<'a, MemoryTransaction<'a>> for &'a MemoryTxnManager

fn begin(&'a self, mode: TxnMode) -> Result<MemoryTransaction<'a>>

Begins a new transaction in the specified mode.

fn commit(&'a self, txn: MemoryTransaction<'a>) -> Result<()>

Commits a transaction, applying its changes to the store.

fn rollback(&'a self, txn: MemoryTransaction<'a>) -> Result<()>

Rolls back a transaction, discarding its changes.