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(***********************************************************************)
(*                                                                     *)
(*                                OCaml                                *)
(*                                                                     *)
(*            Xavier Leroy, projet Cristal, INRIA Rocquencourt         *)
(*                                                                     *)
(*  Copyright 1996 Institut National de Recherche en Informatique et   *)
(*  en Automatique.  All rights reserved.  This file is distributed    *)
(*  under the terms of the Q Public License version 1.0.               *)
(*                                                                     *)
(***********************************************************************)

let print_message delay c =
  while true do
    print_char c; flush stdout; Thread.delay delay
  done

let _ =
  Thread.sigmask Unix.SIG_BLOCK [Sys.sigint; Sys.sigterm];
  let th1 = Thread.create (print_message 0.6666666666) 'a' in
  let th2 = Thread.create (print_message 1.0) 'b' in
  let s = Thread.wait_signal [Sys.sigint; Sys.sigterm] in
  Printf.printf "Got signal %d, exiting...\n" s