New Language: Ada

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@45953 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 139 insertions, 0 deletions

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+------------------------------------------------------------------------------
+--                                                                          --
+--                GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS               --
+--                                                                          --
+--                         A D A . I N T E R R U P T S                      --
+--                                                                          --
+--                                  B o d y                                 --
+--                                                                          --
+--                             $Revision: 1.12 $                            --
+--                                                                          --
+--             Copyright (C) 1991-2001 Florida State University             --
+--                                                                          --
+-- 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,  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.                                      --
+--                                                                          --
+-- GNARL was developed by the GNARL team at Florida State University. It is --
+-- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
+-- State University (http://www.gnat.com).                                  --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with System.Interrupts;
+--  used for Interrupt_ID
+--           Parameterless_Handler
+--           Is_Reserved
+--           Is_Handler_Attached
+--           Current_Handler
+--           Attach_Handler
+--           Exchange_Handler
+--           Detach_Handler
+--           Reference
+
+with Unchecked_Conversion;
+
+package body Ada.Interrupts is
+
+   package SI renames System.Interrupts;
+
+   function To_System is new Unchecked_Conversion
+     (Parameterless_Handler, SI.Parameterless_Handler);
+
+   function To_Ada is new 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 : in 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;