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------------------------------------------------------------------------------
--                                                                          --
--                  GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                --
--                                                                          --
--                     S Y S T E M . I N T E R R U P T S                    --
--                                                                          --
--                                  B o d y                                 --
--                                                                          --
--             Copyright (C) 1991-1994, Florida State University            --
--                     Copyright (C) 1995-2008, 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.     --
--                                                                          --
------------------------------------------------------------------------------
 
--  This version is for systems that do not support interrupts (or signals)
 
package body System.Interrupts is
 
   pragma Warnings (Off); -- kill warnings on unreferenced formals
 
   use System.Tasking;
 
   -----------------------
   -- Local Subprograms --
   -----------------------
 
   procedure Unimplemented;
   --  This procedure raises a Program_Error with an appropriate message
   --  indicating that an unimplemented feature has been used.
 
   --------------------
   -- Attach_Handler --
   --------------------
 
   procedure Attach_Handler
     (New_Handler : Parameterless_Handler;
      Interrupt   : Interrupt_ID;
      Static      : Boolean := False)
   is
   begin
      Unimplemented;
   end Attach_Handler;
 
   -----------------------------
   -- Bind_Interrupt_To_Entry --
   -----------------------------
 
   procedure Bind_Interrupt_To_Entry
     (T       : Task_Id;
      E       : Task_Entry_Index;
      Int_Ref : System.Address)
   is
   begin
      Unimplemented;
   end Bind_Interrupt_To_Entry;
 
   ---------------------
   -- Block_Interrupt --
   ---------------------
 
   procedure Block_Interrupt (Interrupt : Interrupt_ID) is
   begin
      Unimplemented;
   end Block_Interrupt;
 
   ---------------------
   -- Current_Handler --
   ---------------------
 
   function Current_Handler
     (Interrupt : Interrupt_ID) return Parameterless_Handler
   is
   begin
      Unimplemented;
      return null;
   end Current_Handler;
 
   --------------------
   -- Detach_Handler --
   --------------------
 
   procedure Detach_Handler
     (Interrupt : Interrupt_ID;
      Static    : Boolean := False)
   is
   begin
      Unimplemented;
   end Detach_Handler;
 
   ------------------------------
   -- Detach_Interrupt_Entries --
   ------------------------------
 
   procedure Detach_Interrupt_Entries (T : Task_Id) is
   begin
      Unimplemented;
   end Detach_Interrupt_Entries;
 
   ----------------------
   -- Exchange_Handler --
   ----------------------
 
   procedure Exchange_Handler
     (Old_Handler : out Parameterless_Handler;
      New_Handler : Parameterless_Handler;
      Interrupt   : Interrupt_ID;
      Static      : Boolean := False)
   is
   begin
      Old_Handler := null;
      Unimplemented;
   end Exchange_Handler;
 
   --------------
   -- Finalize --
   --------------
 
   procedure Finalize (Object : in out Static_Interrupt_Protection) is
   begin
      Unimplemented;
   end Finalize;
 
   -------------------------------------
   -- Has_Interrupt_Or_Attach_Handler --
   -------------------------------------
 
   function Has_Interrupt_Or_Attach_Handler
     (Object : access Dynamic_Interrupt_Protection)
      return   Boolean
   is
      pragma Warnings (Off, Object);
   begin
      Unimplemented;
      return True;
   end Has_Interrupt_Or_Attach_Handler;
 
   function Has_Interrupt_Or_Attach_Handler
     (Object : access Static_Interrupt_Protection)
      return   Boolean
   is
      pragma Warnings (Off, Object);
   begin
      Unimplemented;
      return True;
   end Has_Interrupt_Or_Attach_Handler;
 
   ----------------------
   -- Ignore_Interrupt --
   ----------------------
 
   procedure Ignore_Interrupt (Interrupt : Interrupt_ID) is
   begin
      Unimplemented;
   end Ignore_Interrupt;
 
   ----------------------
   -- Install_Handlers --
   ----------------------
 
   procedure Install_Handlers
     (Object       : access Static_Interrupt_Protection;
      New_Handlers : New_Handler_Array)
   is
   begin
      Unimplemented;
   end Install_Handlers;
 
   ---------------------------------
   -- Install_Restricted_Handlers --
   ---------------------------------
 
   procedure Install_Restricted_Handlers (Handlers : New_Handler_Array) is
   begin
      Unimplemented;
   end Install_Restricted_Handlers;
 
   ----------------
   -- Is_Blocked --
   ----------------
 
   function Is_Blocked (Interrupt : Interrupt_ID) return Boolean is
   begin
      Unimplemented;
      return True;
   end Is_Blocked;
 
   -----------------------
   -- Is_Entry_Attached --
   -----------------------
 
   function Is_Entry_Attached (Interrupt : Interrupt_ID) return Boolean is
   begin
      Unimplemented;
      return True;
   end Is_Entry_Attached;
 
   -------------------------
   -- Is_Handler_Attached --
   -------------------------
 
   function Is_Handler_Attached (Interrupt : Interrupt_ID) return Boolean is
   begin
      Unimplemented;
      return True;
   end Is_Handler_Attached;
 
   ----------------
   -- Is_Ignored --
   ----------------
 
   function Is_Ignored (Interrupt : Interrupt_ID) return Boolean is
   begin
      Unimplemented;
      return True;
   end Is_Ignored;
 
   -----------------
   -- Is_Reserved --
   -----------------
 
   function Is_Reserved (Interrupt : Interrupt_ID) return Boolean is
   begin
      Unimplemented;
      return True;
   end Is_Reserved;
 
   ---------------
   -- Reference --
   ---------------
 
   function Reference (Interrupt : Interrupt_ID) return System.Address is
   begin
      Unimplemented;
      return Interrupt'Address;
   end Reference;
 
   --------------------------------
   -- Register_Interrupt_Handler --
   --------------------------------
 
   procedure Register_Interrupt_Handler
     (Handler_Addr : System.Address)
   is
   begin
      Unimplemented;
   end Register_Interrupt_Handler;
 
   -----------------------
   -- Unblock_Interrupt --
   -----------------------
 
   procedure Unblock_Interrupt (Interrupt : Interrupt_ID) is
   begin
      Unimplemented;
   end Unblock_Interrupt;
 
   ------------------
   -- Unblocked_By --
   ------------------
 
   function Unblocked_By (Interrupt : Interrupt_ID)
     return System.Tasking.Task_Id is
   begin
      Unimplemented;
      return null;
   end Unblocked_By;
 
   ------------------------
   -- Unignore_Interrupt --
   ------------------------
 
   procedure Unignore_Interrupt (Interrupt : Interrupt_ID) is
   begin
      Unimplemented;
   end Unignore_Interrupt;
 
   -------------------
   -- Unimplemented; --
   -------------------
 
   procedure Unimplemented is
   begin
      raise Program_Error with "interrupts/signals not implemented";
   end Unimplemented;
 
end System.Interrupts;