Struct RedbManager 

pub struct RedbManager { /* private fields */ }

Available on crate feature manager-redb only.

Implements CacheManager with redb as the backend — a pure-Rust, embedded, persistent key/value store.

All operations are synchronous and require no async runtime, so this manager works under any executor (tokio, smol, Bevy, …) and adds no tokio dependency.

Implementations

impl RedbManager

pub fn new( path: impl AsRef<Path>, ) -> Result<RedbManager, Box<dyn Error + Send + Sync>>

Creates a new RedbManager, creating or opening the redb database file at path.

Returns an error if the database cannot be opened (for example if another instance already holds the exclusive file lock).

pub fn from_database( db: Arc<Database>, ) -> Result<RedbManager, Box<dyn Error + Send + Sync>>

Wraps an already-open redb Database, allowing callers to configure the database (cache size, etc.) before handing it to the manager.

pub fn from_database_with_flush_interval( db: Arc<Database>, flush_interval: u64, ) -> Result<RedbManager, Box<dyn Error + Send + Sync>>

Like from_database, but flushes stores to disk every flush_interval writes instead of the default 64. An interval of 1 flushes after every store.

pub async fn clear(&self) -> Result<(), Box<dyn Error + Send + Sync>>

Clears out the entire cache.

Trait Implementations

impl CacheManager for RedbManager

async fn get( &self, cache_key: &str, ) -> Result<Option<(HttpResponse, CachePolicy)>, Box<dyn Error + Send + Sync>>

Attempts to pull a cached response and related policy from cache.

async fn put( &self, cache_key: String, response: HttpResponse, policy: CachePolicy, ) -> Result<HttpResponse, Box<dyn Error + Send + Sync>>

Attempts to cache a response and related policy.

async fn delete( &self, cache_key: &str, ) -> Result<(), Box<dyn Error + Send + Sync>>

Attempts to remove a record from cache.

impl Clone for RedbManager

fn clone(&self) -> RedbManager

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RedbManager

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

Formats the value using the given formatter.