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mirage_random.ml
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(*
* Copyright (c) 2011-2015 Anil Madhavapeddy <anil@recoil.org>
* Copyright (c) 2013-2015 Thomas Gazagnaire <thomas@gazagnaire.org>
* Copyright (c) 2013 Citrix Systems Inc
*
* 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.
*)
(** {1 Random-related devices}
This module define random-related devices for MirageOS.
{e Release %%VERSION%% } *)
(** {1 Operations to generate random numbers} *)
module type S = sig
type g
(** The state of the generator. *)
val generate: ?g:g -> int -> string
(** [generate ~g len] generates a random buffer of length [len] using [g]. *)
val generate_into : ?g:g -> bytes -> ?off:int -> int -> unit
(** [generate_into ~g buf ~off len] puts [len] bytes random data into [buf]
starting at [off] (defaults to 0). *)
end