(***********************************************************************)

(*                                                                     *)

(*                 MLTk, Tcl/Tk interface of OCaml                     *)

(*                                                                     *)

(*    Francois Rouaix, Francois Pessaux, Jun Furuse and Pierre Weis    *)

(*               projet Cristal, INRIA Rocquencourt                    *)

(*            Jacques Garrigue, Kyoto University RIMS                  *)

(*                                                                     *)

(*  Copyright 2002 Institut National de Recherche en Informatique et   *)

(*  en Automatique and Kyoto University.  All rights reserved.         *)

(*  This file is distributed under the terms of the GNU Library        *)

(*  General Public License, with the special exception on linking      *)

(*  described in file LICENSE found in the OCaml source tree.          *)

(*                                                                     *)

(***********************************************************************)

open Camltk

let version = "$Id$"

(*

 * Simple spooling for fileinput callbacks

 *)

let waiting_list = Queue. new()

and waiting = ref 0

and max_open = ref 10

and cur_open = ref 0

let add fd f =

  if !cur_open < !max_open then begin

    incr cur_open;

    add_fileinput fd f

    end

  else begin

    incr waiting;

    Queue.add (fd,f) waiting_list

  end

let remove fd =