Source file mirage_block_lwt_s.ml

(*
 * Copyright (C) 2015 David Scott <dave.scott@unikernel.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 *)

module type S = Mirage_block.S
  with type 'a io = 'a Lwt.t
   and type page_aligned_buffer = Cstruct.t

module type SEEKABLE = sig
  include S
  val seek_unmapped: t -> int64 -> (int64, error) result io
  val seek_mapped: t -> int64 -> (int64, error) result io
end

module type RESIZABLE = sig
  include S
  val resize : t -> int64 -> (unit, write_error) result io
end