Struct InMemoryRateLimitStore 

pub struct InMemoryRateLimitStore { /* private fields */ }

In-memory rate-limit store intended for local development and single-process apps.

The store tracks counters in process memory and opportunistically removes expired identity windows during RateLimitStore::check, scanning at most once per window duration so a large identity set does not add a full-map sweep to every request. Rate-limit decisions never depend on that sweep: each identity’s window resets itself on its next check. The store is not shared across processes, not durable across restarts, and not a substitute for a distributed limiter at multi-instance production boundaries.

Implementations

impl InMemoryRateLimitStore

pub fn new() -> Self

Creates an empty in-memory rate-limit store.

pub fn len(&self) -> usize

Returns the number of identity windows currently retained by the store.

Expired windows are pruned opportunistically during RateLimitStore::check (at most one full sweep per window duration), so this value is mainly useful for tests, diagnostics, and local tools.

pub fn is_empty(&self) -> bool

Returns whether the store currently retains no identity windows.

Trait Implementations

impl Clone for InMemoryRateLimitStore

fn clone(&self) -> InMemoryRateLimitStore

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for InMemoryRateLimitStore

fn default() -> InMemoryRateLimitStore

Returns the “default value” for a type.

impl RateLimitStore for InMemoryRateLimitStore

fn check( &self, identity: &RequestIdentity, limit: u64, window: Duration, ) -> Result<RateLimitDecision, RateLimitError>

Checks and consumes one request for an identity.