Enum Command 

pub enum Command<K, V> {
    Insert(K, V, u64),
    BatchInsert(Vec<(K, V, u64)>),
    Remove(K, u64),
    Clear(Arc<OneshotAck>),
    Sync(Arc<OneshotAck>),
    Shutdown,
}

Variants

Insert(K, V, u64)

Single insert from Worker (goes through probation gate).

BatchInsert(Vec<(K, V, u64)>)

Batch of (K, V, hash) from sharded worker buffers.

Remove(K, u64)

Remove by key+hash.

Clear(Arc<OneshotAck>)

Blocking clear — caller spins on OneshotAck::wait().

Sync(Arc<OneshotAck>)

Blocking maintenance flush — caller spins on OneshotAck::wait().

Shutdown

Signal Daemon to exit its run loop.