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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- G N A T . C T R L _ C --
-- --
-- S p e c --
-- --
-- Copyright (C) 2002-2010, AdaCore --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- This package may be used to intercept the interruption of a running
-- program by the operator typing Control-C, without having to use an Ada
-- interrupt handler protected object.
-- This package is currently implemented under Windows and Unix platforms
-- Note concerning Unix systems:
-- The behavior of this package when using tasking depends on the interaction
-- between sigaction() and the thread library.
package GNAT.Ctrl_C is
type Handler_Type is access procedure;
-- Any parameterless library level procedure can be used as a handler.
-- Handler_Type should not propagate exceptions.
procedure Install_Handler (Handler : Handler_Type);
-- Set up Handler to be called if the operator hits Ctrl-C, instead of the
-- standard Control-C handler.
procedure Uninstall_Handler;
-- Reinstall the standard Control-C handler.
-- If Install_Handler has never been called, this procedure has no effect.
private
pragma Import (C, Uninstall_Handler, "__gnat_uninstall_int_handler");
end GNAT.Ctrl_C;
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