Struct QuotaCache 

pub struct QuotaCache { /* private fields */ }

A short-TTL cache over NamespaceStore::get_namespace’s config.max_in_flight_activities, resolving the platform default when a namespace sets no explicit override.

Cheap to clone (shares the inner store handle + map). A miss / expired entry reads the durable store once and re-caches; a backend error or an absent record resolves to the generous platform_default (so a registry hiccup admits at the default headroom rather than throttling to zero).

Implementations

impl QuotaCache

pub fn new( store: Arc<dyn NamespaceStore>, platform_default: u32, ttl: Duration, ) -> Self

Build a cache over the durable namespace store with the given platform default ceiling and entry TTL.

pub async fn ceiling(&self, namespace: &str) -> u32

Return the namespace’s resolved cluster-wide ceiling, serving a fresh cache hit without a store read and refreshing on a miss / expiry.

A poisoned cache lock or a store-read failure falls back to the generous platform_default — the dispatch then admits at default headroom, so a registry hiccup never throttles a tenant to zero.

Trait Implementations

impl Clone for QuotaCache

fn clone(&self) -> QuotaCache

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QuotaCache

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

Formats the value using the given formatter.