type pointer = Allocator.pointerval return : 'a -> 'a ioval read : t -> pointer -> page_aligned_buffer list -> [ `Error of error | `Ok of unit ] ioval write : t -> pointer -> page_aligned_buffer list -> [ `Error of error | `Ok of unit ] ioMake.2-Storetype pointer = Allocator.pointerval return : 'a -> 'a ioval read : t -> pointer -> page_aligned_buffer list -> [ `Error of error | `Ok of unit ] ioval write : t -> pointer -> page_aligned_buffer list -> [ `Error of error | `Ok of unit ] io