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|
(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* Jerome Vouillon, projet Cristal, INRIA Rocquencourt *)
(* Objective Caml port by John Malecki and Xavier Leroy *)
(* *)
(* 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. *)
(* *)
(***********************************************************************)
(* $Id$ *)
(************************** Trap barrier *******************************)
open Debugcom
open Checkpoints
let current_trap_barrier = ref 0
let install_trap_barrier pos =
current_trap_barrier := pos
let remove_trap_barrier () =
current_trap_barrier := 0
(* Ensure the trap barrier state is up to date in current checkpoint. *)
let update_trap_barrier () =
if !current_checkpoint.c_trap_barrier <> !current_trap_barrier then
Exec.protect
(function () ->
set_trap_barrier !current_trap_barrier;
!current_checkpoint.c_trap_barrier <- !current_trap_barrier)
(* Execute `funct' with a trap barrier. *)
(* --- Used by `finish'. *)
let exec_with_trap_barrier trap_barrier funct =
try
install_trap_barrier trap_barrier;
funct ();
remove_trap_barrier ()
with
x ->
remove_trap_barrier ();
raise x
|
