Struct agilulf::MemDatabase

pub struct MemDatabase { /* fields omitted */ }

A simple RAM only database with skiplist as kernel.

The type of Value in skiplist is either NotExist (used for deleting element) or Slice.

Methods

impl MemDatabase

pub fn restore_from_iterator<I: Iterator<Item = Command>>(
    iter: I
) -> Result<MemDatabase, StorageError>

It can read from command iterator and run every command on MemDatabase. It is very useful for restoring data from log.

pub fn large_enough(&self) -> bool

This function decide whether MemDatabase is too large. As every key and value is (256 + 8) bytes, nearly 1MB is the threshold.

Trait Implementations

impl SyncDatabase for MemDatabase

fn get_sync(&self, key: Slice) -> Result<Slice>

fn put_sync(&self, key: Slice, value: Slice) -> Result<()>

fn scan_sync(&self, start: Slice, end: Slice) -> Vec<(Slice, Slice)>

fn delete_sync(&self, key: Slice) -> Result<()>

impl Drop for MemDatabase

fn drop(&mut self)

Executes the destructor for this type.

impl Default for MemDatabase

fn default() -> Self

Returns the "default value" for a type.