Struct AnnounceSignatureCache 

pub struct AnnounceSignatureCache { /* private fields */ }

Bounded TTL cache for announce signature verification results.

Stores hashes of recently verified (destination_hash, signature) pairs so that duplicate announces from multiple peers skip redundant Ed25519 verification. Entries expire after ttl_secs and are culled periodically. When max_entries is 0 the cache is disabled and all methods are no-ops.

Implementations

impl AnnounceSignatureCache

pub fn new(max_entries: usize, ttl_secs: f64) -> Self

pub fn contains(&self, key: &[u8; 32]) -> bool

Check if a cache key is present (i.e., already verified).

pub fn insert(&mut self, key: [u8; 32], now: f64)

Insert a verified cache key with the current timestamp.

pub fn cull(&mut self, now: f64) -> usize

Remove entries older than TTL. Returns the number of entries removed.

pub fn len(&self) -> usize