Struct PersistentStore 

pub struct PersistentStore { /* private fields */ }

Sled-based persistent store

Implementations

impl PersistentStore

pub fn new<P: AsRef<Path>>(path: P) -> Result<Self>

Open or create database

pub fn memory() -> Result<Self>

Create in-memory database (for testing)

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

Flush to disk

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

Database size on disk

pub fn len(&self) -> usize

Number of entries

pub fn is_empty(&self) -> bool

Check if empty

Trait Implementations

impl StorageBackend for PersistentStore

fn put<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, key: &'life1 [u8], value: &'life2 [u8], ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Store key-value pair

fn get<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 [u8], ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Get value by key

fn delete<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 [u8], ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Delete key

fn list_prefix<'life0, 'life1, 'async_trait>( &'life0 self, prefix: &'life1 [u8], ) -> Pin<Box<dyn Future<Output = Result<Vec<Vec<u8>>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

List all keys with prefix

fn batch_put<'life0, 'async_trait>( &'life0 self, items: Vec<(Vec<u8>, Vec<u8>)>, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Batch operations