Struct SqliteCache 

pub struct SqliteCache { /* private fields */ }

Implementations

impl SqliteCache

pub fn open(path: &Path) -> Result<SqliteCache, StoreError>

Opens (creating if needed) the cache at path.

pub fn open_in_memory() -> Result<SqliteCache, StoreError>

pub fn stats(&self) -> Result<Stats, StoreError>

pub fn clear(&self) -> Result<(), StoreError>

Empties the cache.

Trait Implementations

impl Cache for SqliteCache

fn get_lookups( &self, provider: &ProviderId, ids: &[WorkId], ) -> Result<Vec<Option<Entry<Option<SourceRecord>>>>, StoreError>

The cached answer for each of ids at provider, in order; None where nothing is cached.

fn put_lookups( &self, provider: &ProviderId, answers: &[(&WorkId, Option<&SourceRecord>)], at: Timestamp, ) -> Result<(), StoreError>

Stores provider’s answers in one transaction. A found record is also reachable by every identifier it asserts.

fn get_search( &self, provider: &ProviderId, query: &SearchQuery, ) -> Result<Option<Entry<Page>>, StoreError>

fn put_search( &self, provider: &ProviderId, query: &SearchQuery, page: &Page, at: Timestamp, ) -> Result<(), StoreError>

impl Pacing for SqliteCache

fn claim_slot( &self, provider: &str, interval: Duration, now: Timestamp, ) -> Result<Timestamp, StoreError>

Claims the next start time for a request to provider: now if free, else interval after the latest slot anyone claimed.