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(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* Franois Pessaux, projet Cristal, INRIA Rocquencourt *)
(* Pierre Weis, projet Cristal, INRIA Rocquencourt *)
(* Jun Furuse, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 1999 - 2003 *)
(* Institut National de Recherche en Informatique et en Automatique. *)
(* Distributed only by permission. *)
(* *)
(***********************************************************************)
(* temporary directory *)
let tmp_dir = ref (try Sys.getenv "CAMLIMAGESTMPDIR" with Not_found -> "/tmp");;
let cnter = ref 0;;
let rec new_tmp_name prefx =
incr cnter;
let name =
Filename.concat !tmp_dir
(Printf.sprintf "camlimages-%s-%d" prefx !cnter) in
if not (Sys.file_exists name) then name else begin
prerr_endline ("Warning: tmp file " ^ name ^ " already exists");
new_tmp_name prefx
end;;
let remove_tmp_file tmpfile = try Sys.remove tmpfile with _ -> ();;
let new_tmp_file_name prefx =
if not (Sys.file_exists !tmp_dir) then
failwith ("Temporary directory " ^ !tmp_dir ^ " does not exist") else
let f = new_tmp_name prefx in
at_exit (fun () -> remove_tmp_file f);
f;;
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