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(****************************************************************************)
(* the diy toolsuite *)
(* *)
(* Jade Alglave, University College London, UK. *)
(* Luc Maranget, INRIA Paris-Rocquencourt, France. *)
(* *)
(* Copyright 2021-present Institut National de Recherche en Informatique et *)
(* en Automatique and the authors. All rights reserved. *)
(* *)
(* This software is governed by the CeCILL-B license under French law and *)
(* abiding by the rules of distribution of free software. You can use, *)
(* modify and/ or redistribute the software under the terms of the CeCILL-B *)
(* license as circulated by CEA, CNRS and INRIA at the following URL *)
(* "http://www.cecill.info". We also give a copy in LICENSE.txt. *)
(****************************************************************************)
open Unix
let dbg = false
let name = ref ""
let set_signal timeout f dbg =
match timeout with
| None -> ()
| Some _ ->
let g =
if dbg then
fun s ->
let n = !name in
if n <> "" then Printf.eprintf "Timeout for %s\n%!" n ;
f s
else f in
Sys.set_signal
26 (* SIGVTALARM *)
(Sys.Signal_handle g)
let start n timeout =
match timeout with
| None -> ()
| Some t ->
name := n ;
if dbg then Printf.eprintf "Start %s\n%!" n ;
let it =
{it_value=t; it_interval=0.0;} in
ignore (setitimer ITIMER_VIRTUAL it)
and stop timeout =
match timeout with
| None -> ()
| Some _ ->
if dbg then Printf.eprintf "Stop %s\n%!" !name ;
name := "" ;
let it =
{it_value=0.0; it_interval=0.0;} in
ignore (setitimer ITIMER_VIRTUAL it)
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