Module offset_allocator 

Pure offset-reservation kernel for diskless WAL sequencers.

Functions

reserve_offsets

Reserve count offsets from next, returning (base, next_after).

wal_reservation_epoch_ready

Admit reservations only after the current leader’s epoch marker commits.

wal_reservation_frontier

Extend an exact pending-reservation chain by one range.

wal_reservation_response

Admit a controller reservation response bound to the exact request and leader epoch.