pub struct SqliteBackend { /* private fields */ }Expand description
SQLite-backed cache. Table: umbral_cache(key TEXT PRIMARY KEY, value BLOB NOT NULL, expires_at TIMESTAMP NULL). Expired rows
are skipped on read and removed by SqliteBackend::sweep for
periodic cleanup.
Implementations§
Source§impl SqliteBackend
impl SqliteBackend
pub async fn new(pool: SqlitePool) -> Result<Self, CacheError>
Sourcepub async fn sweep(&self) -> Result<u64, CacheError>
pub async fn sweep(&self) -> Result<u64, CacheError>
Remove every expired row. Call from a periodic task; reads already skip expired rows so a call is never required for correctness, only for keeping the table small.
Trait Implementations§
Source§impl CacheBackend for SqliteBackend
impl CacheBackend for SqliteBackend
fn get<'life0, 'life1, 'async_trait>(
&'life0 self,
key: &'life1 str,
) -> Pin<Box<dyn Future<Output = Option<Vec<u8>>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn set<'life0, 'life1, 'async_trait>(
&'life0 self,
key: &'life1 str,
value: Vec<u8>,
ttl: Option<Duration>,
) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn delete<'life0, 'life1, 'async_trait>(
&'life0 self,
key: &'life1 str,
) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn clear<'life0, 'async_trait>(
&'life0 self,
) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
Auto Trait Implementations§
impl !RefUnwindSafe for SqliteBackend
impl !UnwindSafe for SqliteBackend
impl Freeze for SqliteBackend
impl Send for SqliteBackend
impl Sync for SqliteBackend
impl Unpin for SqliteBackend
impl UnsafeUnpin for SqliteBackend
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