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jeremybenn |
------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
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-- --
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-- A D A . I N T E R R U P T S --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 1991-1994, Florida State University --
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-- Copyright (C) 1995-2007, AdaCore --
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-- --
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-- GNARL is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 2, or (at your option) any later ver- --
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-- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNARL; see file COPYING. If not, write --
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-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
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-- Boston, MA 02110-1301, USA. --
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-- --
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-- As a special exception, if other files instantiate generics from this --
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-- unit, or you link this unit with other files to produce an executable, --
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-- this unit does not by itself cause the resulting executable to be --
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-- covered by the GNU General Public License. This exception does not --
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-- however invalidate any other reasons why the executable file might be --
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-- covered by the GNU Public License. --
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-- --
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-- GNARL was developed by the GNARL team at Florida State University. --
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-- Extensive contributions were provided by Ada Core Technologies, Inc. --
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-- --
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------------------------------------------------------------------------------
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with Ada.Unchecked_Conversion;
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package body Ada.Interrupts is
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package SI renames System.Interrupts;
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function To_System is new Ada.Unchecked_Conversion
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(Parameterless_Handler, SI.Parameterless_Handler);
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function To_Ada is new Ada.Unchecked_Conversion
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(SI.Parameterless_Handler, Parameterless_Handler);
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--------------------
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-- Attach_Handler --
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--------------------
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procedure Attach_Handler
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(New_Handler : Parameterless_Handler;
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Interrupt : Interrupt_ID)
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is
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begin
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SI.Attach_Handler
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(To_System (New_Handler), SI.Interrupt_ID (Interrupt), False);
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end Attach_Handler;
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---------------------
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-- Current_Handler --
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---------------------
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function Current_Handler
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(Interrupt : Interrupt_ID) return Parameterless_Handler
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is
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begin
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return To_Ada (SI.Current_Handler (SI.Interrupt_ID (Interrupt)));
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end Current_Handler;
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--------------------
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-- Detach_Handler --
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--------------------
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procedure Detach_Handler (Interrupt : Interrupt_ID) is
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begin
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SI.Detach_Handler (SI.Interrupt_ID (Interrupt), False);
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end Detach_Handler;
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----------------------
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-- Exchange_Handler --
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----------------------
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procedure Exchange_Handler
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(Old_Handler : out Parameterless_Handler;
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New_Handler : Parameterless_Handler;
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Interrupt : Interrupt_ID)
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is
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H : SI.Parameterless_Handler;
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begin
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SI.Exchange_Handler
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(H, To_System (New_Handler),
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SI.Interrupt_ID (Interrupt), False);
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Old_Handler := To_Ada (H);
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end Exchange_Handler;
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-----------------
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-- Is_Attached --
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-----------------
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function Is_Attached (Interrupt : Interrupt_ID) return Boolean is
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begin
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return SI.Is_Handler_Attached (SI.Interrupt_ID (Interrupt));
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end Is_Attached;
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-----------------
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-- Is_Reserved --
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-----------------
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function Is_Reserved (Interrupt : Interrupt_ID) return Boolean is
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begin
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return SI.Is_Reserved (SI.Interrupt_ID (Interrupt));
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end Is_Reserved;
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---------------
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-- Reference --
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---------------
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function Reference (Interrupt : Interrupt_ID) return System.Address is
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begin
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return SI.Reference (SI.Interrupt_ID (Interrupt));
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end Reference;
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end Ada.Interrupts;
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