Capture before external work; recheck before any resulting database write.
epoch is the owner's fence counter when the ticket was captured. An applied invalidation, a block,
a reactivation and a replayed deletion each advance it, which makes every earlier ticket stale.
Capture before external work; recheck before any resulting database write.
epochis the owner's fence counter when the ticket was captured. An applied invalidation, a block, a reactivation and a replayed deletion each advance it, which makes every earlier ticket stale.