Struct RedbStorageDB 

pub struct RedbStorageDB { /* private fields */ }

Redb-backed storage database

Implementations

impl RedbStorageDB

pub fn open(cfg: &RedbConfig) -> Result<Self>

Opens a Redb database with the given configuration

pub fn cleanup(&self, limit: usize) -> usize

Cleans up expired keys (TTL feature)

pub fn active_count(&self) -> isize

Returns the count of active commands

Trait Implementations

impl Clone for RedbStorageDB

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RedbStorageDB

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

Formats the value using the given formatter.

impl StorageDB for RedbStorageDB

type MapType = RedbStorageMap

Concrete Map type for this storage

type ListType = RedbStorageList

Concrete List type for this storage

fn map<'life0, 'async_trait, N>( &'life0 self, name: N, expire: Option<i64>, ) -> Pin<Box<dyn Future<Output = Self::MapType> + Send + 'async_trait>>

where N: 'async_trait + AsRef<[u8]> + Sync + Send, Self: 'async_trait, 'life0: 'async_trait,

Creates or accesses a named map.

fn map_remove<'life0, 'async_trait, K>( &'life0 self, name: K, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where K: AsRef<[u8]> + Sync + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait,

Removes an entire map

fn map_contains_key<'life0, 'async_trait, K>( &'life0 self, key: K, ) -> Pin<Box<dyn Future<Output = Result<bool>> + Send + 'async_trait>>

where K: 'async_trait + AsRef<[u8]> + Sync + Send, Self: 'async_trait, 'life0: 'async_trait,

Checks if a map exists

fn list<'life0, 'async_trait, N>( &'life0 self, name: N, expire: Option<i64>, ) -> Pin<Box<dyn Future<Output = Self::ListType> + Send + 'async_trait>>

where N: 'async_trait + AsRef<[u8]> + Sync + Send, Self: 'async_trait, 'life0: 'async_trait,

Creates or accesses a named list.

fn list_remove<'life0, 'async_trait, K>( &'life0 self, name: K, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where K: AsRef<[u8]> + Sync + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait,

Removes an entire list

fn list_contains_key<'life0, 'async_trait, K>( &'life0 self, key: K, ) -> Pin<Box<dyn Future<Output = Result<bool>> + Send + 'async_trait>>

where K: 'async_trait + AsRef<[u8]> + Sync + Send, Self: 'async_trait, 'life0: 'async_trait,

Checks if a list exists

fn insert<'life0, 'life1, 'async_trait, K, V>( &'life0 self, key: K, val: &'life1 V, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where K: AsRef<[u8]> + Sync + Send + 'async_trait, V: Serialize + Sync + Send + ?Sized + 'async_trait, Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Inserts a key-value pair

fn get<'life0, 'async_trait, K, V>( &'life0 self, key: K, ) -> Pin<Box<dyn Future<Output = Result<Option<V>>> + Send + 'async_trait>>

where K: AsRef<[u8]> + Sync + Send + 'async_trait, V: DeserializeOwned + Sync + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait,

Retrieves a value by key

fn remove<'life0, 'async_trait, K>( &'life0 self, key: K, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where K: AsRef<[u8]> + Sync + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait,

Removes a key-value pair

fn contains_key<'life0, 'async_trait, K>( &'life0 self, key: K, ) -> Pin<Box<dyn Future<Output = Result<bool>> + Send + 'async_trait>>

where K: 'async_trait + AsRef<[u8]> + Sync + Send, Self: 'async_trait, 'life0: 'async_trait,

Checks if key exists

fn batch_insert<'life0, 'async_trait, V>( &'life0 self, key_vals: Vec<(Key, V)>, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where V: Serialize + Sync + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait,

Batch insert of multiple key-value pairs

fn batch_remove<'life0, 'async_trait>( &'life0 self, keys: Vec<Key>, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

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

Batch removal of keys

fn counter_incr<'life0, 'async_trait, K>( &'life0 self, key: K, increment: isize, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where K: AsRef<[u8]> + Sync + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait,

Increments a counter value

fn counter_decr<'life0, 'async_trait, K>( &'life0 self, key: K, decrement: isize, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where K: AsRef<[u8]> + Sync + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait,

Decrements a counter value

fn counter_get<'life0, 'async_trait, K>( &'life0 self, key: K, ) -> Pin<Box<dyn Future<Output = Result<Option<isize>>> + Send + 'async_trait>>

where K: AsRef<[u8]> + Sync + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait,

Gets current counter value

fn counter_set<'life0, 'async_trait, K>( &'life0 self, key: K, val: isize, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where K: AsRef<[u8]> + Sync + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait,

Sets counter to specific value

fn len<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<usize>> + Send + 'async_trait>>

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

Gets number of items in storage (requires “len” feature)

fn db_size<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<usize>> + Send + 'async_trait>>

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

Gets total storage size in bytes

fn expire_at<'life0, 'async_trait, K>( &'life0 self, key: K, at: i64, ) -> Pin<Box<dyn Future<Output = Result<bool>> + Send + 'async_trait>>

where K: AsRef<[u8]> + Sync + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait,

Sets expiration timestamp for a key (requires “ttl” feature)

fn expire<'life0, 'async_trait, K>( &'life0 self, key: K, dur: i64, ) -> Pin<Box<dyn Future<Output = Result<bool>> + Send + 'async_trait>>

where K: AsRef<[u8]> + Sync + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait,

Sets expiration duration for a key (requires “ttl” feature)

fn ttl<'life0, 'async_trait, K>( &'life0 self, key: K, ) -> Pin<Box<dyn Future<Output = Result<Option<i64>>> + Send + 'async_trait>>

where K: AsRef<[u8]> + Sync + Send + 'async_trait, Self: 'async_trait, 'life0: 'async_trait,

Gets remaining time-to-live for a key (requires “ttl” feature)

fn map_iter<'a, 'async_trait>( &'a mut self, ) -> Pin<Box<dyn Future<Output = Result<Box<dyn AsyncIterator<Item = Result<StorageMap>> + Send + 'a>>> + Send + 'async_trait>>

where Self: 'async_trait, 'a: 'async_trait,

Iterates over all maps in storage

fn list_iter<'a, 'async_trait>( &'a mut self, ) -> Pin<Box<dyn Future<Output = Result<Box<dyn AsyncIterator<Item = Result<StorageList>> + Send + 'a>>> + Send + 'async_trait>>

where Self: 'async_trait, 'a: 'async_trait,

Iterates over all lists in storage

fn scan<'a, 'async_trait, P>( &'a mut self, pattern: P, ) -> Pin<Box<dyn Future<Output = Result<Box<dyn AsyncIterator<Item = Result<Key>> + Send + 'a>>> + Send + 'async_trait>>

where P: AsRef<[u8]> + Sync + Send + 'async_trait, Self: 'async_trait, 'a: 'async_trait,

Scans keys matching pattern (supports * and ? wildcards)

fn info<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Value>> + Send + 'async_trait>>

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

Gets storage backend information