Struct InMemoryCache 

pub struct InMemoryCache { /* private fields */ }

In-memory RwLock<HashMap> cache for single-process deployments.

Lookups are non-blocking; writes take the write lock briefly. For high-cardinality deployments swap for a sharded or out-of-process store.

Implementations

impl InMemoryCache

pub fn new() -> Self

Construct an empty cache.

pub async fn len(&self) -> usize

Read the current size — useful for ops dashboards.

pub async fn is_empty(&self) -> bool

True iff no entries.

Trait Implementations

impl Cache for InMemoryCache

fn get<'life0, 'life1, 'async_trait>( &'life0 self, recipient_domain: &'life1 str, ) -> Pin<Box<dyn Future<Output = Option<CachedPolicy>> + Send + 'async_trait>>

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

Read the cached policy for recipient_domain. Returns None if there’s no entry (caller must do the full TXT + HTTPS dance).

fn put<'life0, 'life1, 'async_trait>( &'life0 self, recipient_domain: &'life1 str, entry: CachedPolicy, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>

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

Insert or update the cache entry for recipient_domain.

fn delete<'life0, 'life1, 'async_trait>( &'life0 self, recipient_domain: &'life1 str, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>

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

Drop the cache entry (e.g. on mode: none policy or a confirmed expiry).

impl Clone for InMemoryCache

fn clone(&self) -> InMemoryCache

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InMemoryCache

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

Formats the value using the given formatter.

impl Default for InMemoryCache

fn default() -> InMemoryCache

Returns the “default value” for a type.