serialize.ml

(*_ $Id: serialize.ml 4527 2012-10-17 13:08:20Z weissmam $

Copyright (c) 2010 - 2012 Technische Universitaet Muenchen, TUM
Copyright (c) 2010 - 2012 Markus W. Weissmann <markus.weissmann@in.tum.de>
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.
3. Neither the name of TUM nor the names of its contributors may be used to
   endorse or promote products derived from this software without specific
   prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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*)

exception Header_mismatch of (string * string)

let version = "0.5"

let header suffix =
  ["PROMELA\n"; Printf.sprintf "%-8s\n" suffix; Printf.sprintf "%-8s\n" version]

let save suffix (oc : out_channel) (data : 'a) =
  let () = set_binary_mode_out oc true in
  let () = List.iter (output_string oc) (header suffix) in
  let () = Marshal.to_channel oc data [] in
  ()

let load suffix ex (ic : in_channel) =
  let () = set_binary_mode_in ic true in
  let headers = header suffix in
  let () = List.iter (fun h ->
    let len = String.length h in
    let buf = String.make len '#' in
    let () = really_input ic buf 0 len in
    if h <> buf then raise (Header_mismatch (h, buf)) else ()) headers
  in
  Marshal.from_channel ic