46 lines
1.7 KiB
OCaml
46 lines
1.7 KiB
OCaml
(***********************************************************************)
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(* *)
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(* OCaml *)
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(* *)
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(* Jerome Vouillon, projet Cristal, INRIA Rocquencourt *)
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(* OCaml port by John Malecki and Xavier Leroy *)
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(* *)
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(* Copyright 1996 Institut National de Recherche en Informatique et *)
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(* en Automatique. All rights reserved. This file is distributed *)
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(* under the terms of the Q Public License version 1.0. *)
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(* *)
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(***********************************************************************)
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(************************** Trap barrier *******************************)
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open Debugcom
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open Checkpoints
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let current_trap_barrier = ref 0
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let install_trap_barrier pos =
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current_trap_barrier := pos
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let remove_trap_barrier () =
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current_trap_barrier := 0
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(* Ensure the trap barrier state is up to date in current checkpoint. *)
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let update_trap_barrier () =
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if !current_checkpoint.c_trap_barrier <> !current_trap_barrier then
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Exec.protect
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(function () ->
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set_trap_barrier !current_trap_barrier;
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!current_checkpoint.c_trap_barrier <- !current_trap_barrier)
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(* Execute `funct' with a trap barrier. *)
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(* --- Used by `finish'. *)
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let exec_with_trap_barrier trap_barrier funct =
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try
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install_trap_barrier trap_barrier;
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funct ();
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remove_trap_barrier ()
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with
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x ->
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remove_trap_barrier ();
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raise x
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