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+------------------------------------------------------------------------------
+-- --
+-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
+-- --
+-- A D A . I N T E R R U P T S --
+-- --
+-- B o d y --
+-- --
+-- Copyright (C) 1991-1994, Florida State University --
+-- Copyright (C) 1995-2007, AdaCore --
+-- --
+-- GNARL 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. GNARL 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 GNARL; see file COPYING. If not, write --
+-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, 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. --
+-- --
+-- GNARL was developed by the GNARL team at Florida State University. --
+-- Extensive contributions were provided by Ada Core Technologies, Inc. --
+-- --
+------------------------------------------------------------------------------
+
+with Ada.Unchecked_Conversion;
+
+package body Ada.Interrupts is
+
+ package SI renames System.Interrupts;
+
+ function To_System is new Ada.Unchecked_Conversion
+ (Parameterless_Handler, SI.Parameterless_Handler);
+
+ function To_Ada is new Ada.Unchecked_Conversion
+ (SI.Parameterless_Handler, Parameterless_Handler);
+
+ --------------------
+ -- Attach_Handler --
+ --------------------
+
+ procedure Attach_Handler
+ (New_Handler : Parameterless_Handler;
+ Interrupt : Interrupt_ID)
+ is
+ begin
+ SI.Attach_Handler
+ (To_System (New_Handler), SI.Interrupt_ID (Interrupt), False);
+ end Attach_Handler;
+
+ ---------------------
+ -- Current_Handler --
+ ---------------------
+
+ function Current_Handler
+ (Interrupt : Interrupt_ID) return Parameterless_Handler
+ is
+ begin
+ return To_Ada (SI.Current_Handler (SI.Interrupt_ID (Interrupt)));
+ end Current_Handler;
+
+ --------------------
+ -- Detach_Handler --
+ --------------------
+
+ procedure Detach_Handler (Interrupt : Interrupt_ID) is
+ begin
+ SI.Detach_Handler (SI.Interrupt_ID (Interrupt), False);
+ end Detach_Handler;
+
+ ----------------------
+ -- Exchange_Handler --
+ ----------------------
+
+ procedure Exchange_Handler
+ (Old_Handler : out Parameterless_Handler;
+ New_Handler : Parameterless_Handler;
+ Interrupt : Interrupt_ID)
+ is
+ H : SI.Parameterless_Handler;
+
+ begin
+ SI.Exchange_Handler
+ (H, To_System (New_Handler),
+ SI.Interrupt_ID (Interrupt), False);
+ Old_Handler := To_Ada (H);
+ end Exchange_Handler;
+
+ -----------------
+ -- Is_Attached --
+ -----------------
+
+ function Is_Attached (Interrupt : Interrupt_ID) return Boolean is
+ begin
+ return SI.Is_Handler_Attached (SI.Interrupt_ID (Interrupt));
+ end Is_Attached;
+
+ -----------------
+ -- Is_Reserved --
+ -----------------
+
+ function Is_Reserved (Interrupt : Interrupt_ID) return Boolean is
+ begin
+ return SI.Is_Reserved (SI.Interrupt_ID (Interrupt));
+ end Is_Reserved;
+
+ ---------------
+ -- Reference --
+ ---------------
+
+ function Reference (Interrupt : Interrupt_ID) return System.Address is
+ begin
+ return SI.Reference (SI.Interrupt_ID (Interrupt));
+ end Reference;
+
+end Ada.Interrupts;