------------------------------------------------------------------------------
--                                                                          --
--                        GNAT RUN-TIME COMPONENTS                          --
--                                                                          --
--                       A D A . I N T E R R U P T S                        --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--          Copyright (C) 1992-2001 Free Software Foundation, Inc.          --
--                                                                          --
-- This specification is derived from the Ada Reference Manual for use with --
-- GNAT. The copyright notice above, and the license provisions that follow --
-- apply solely to the  contents of the part following the private keyword. --
--                                                                          --
-- 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 2,  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.  See the GNU General Public License --
-- for  more details.  You should have  received  a copy of the GNU General --
-- Public License  distributed with GNAT;  see file COPYING.  If not, write --
-- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
-- MA 02111-1307, USA.                                                      --
--                                                                          --
-- As a special exception,  if other files  instantiate  generics from this --
-- unit, or you link  this unit with other files  to produce an executable, --
-- this  unit  does not  by itself cause  the resulting  executable  to  be --
-- covered  by the  GNU  General  Public  License.  This exception does not --
-- however invalidate  any other reasons why  the executable file  might be --
-- covered by the  GNU Public License.                                      --
--                                                                          --
-- GNAT was originally developed  by the GNAT team at  New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc.      --
--                                                                          --
------------------------------------------------------------------------------

with System.Interrupts;
--  used for Ada_Interrupt_ID.

package Ada.Interrupts is

   type Interrupt_ID is new System.Interrupts.Ada_Interrupt_ID;

   type Parameterless_Handler is access protected procedure;

   function Is_Reserved (Interrupt : Interrupt_ID) return Boolean;

   function Is_Attached (Interrupt : Interrupt_ID) return Boolean;

   function Current_Handler
     (Interrupt : Interrupt_ID)
      return      Parameterless_Handler;

   procedure Attach_Handler
     (New_Handler : Parameterless_Handler;
      Interrupt   : Interrupt_ID);

   procedure Exchange_Handler
     (Old_Handler : out Parameterless_Handler;
      New_Handler : Parameterless_Handler;
      Interrupt   : Interrupt_ID);

   procedure Detach_Handler (Interrupt : Interrupt_ID);

   function Reference (Interrupt : Interrupt_ID) return System.Address;

private
   pragma Inline (Is_Reserved);
   pragma Inline (Is_Attached);
   pragma Inline (Current_Handler);
   pragma Inline (Attach_Handler);
   pragma Inline (Detach_Handler);
   pragma Inline (Exchange_Handler);
end Ada.Interrupts;
