Struct AdmissionFilter 

pub struct AdmissionFilter {
    pub ghost_mask: usize,
    pub ghost_set: Arc<[AtomicU16]>,
}

Ghost Set: direct-mapped fingerprint array. Records the 16-bit fingerprint of evicted items so that previously-hot items can be resurrected immediately on re-insert, bypassing TLS probation.

Fields

ghost_mask: usize

ghost_set: Arc<[AtomicU16]>

Implementations

impl AdmissionFilter

pub fn new(capacity: usize) -> Self

pub fn record_death(&self, hash: u64)

Called by Daemon on eviction: record this item’s fingerprint.

pub fn check_ghost(&self, hash: u64) -> bool

Called by Frontend Worker on insert: true if this item was previously evicted. Fast-path: skips TLS probation and sends directly to Daemon.

pub fn clear(&self)