1------------------------------------------------------------------------------
2--                                                                          --
3--                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
4--                                                                          --
5--               SYSTEM.TASK_PRIMITIVES.INTERRUPT_OPERATIONS                --
6--                                                                          --
7--                                 B o d y                                  --
8--                                                                          --
9--          Copyright (C) 1998-2009, Free Software Foundation, Inc.         --
10--                                                                          --
11-- GNARL is free software; you can  redistribute it  and/or modify it under --
12-- terms of the  GNU General Public License as published  by the Free Soft- --
13-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
14-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
15-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
16-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
17--                                                                          --
18-- As a special exception under Section 7 of GPL version 3, you are granted --
19-- additional permissions described in the GCC Runtime Library Exception,   --
20-- version 3.1, as published by the Free Software Foundation.               --
21--                                                                          --
22-- You should have received a copy of the GNU General Public License and    --
23-- a copy of the GCC Runtime Library Exception along with this program;     --
24-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
25-- <http://www.gnu.org/licenses/>.                                          --
26--                                                                          --
27-- GNARL was developed by the GNARL team at Florida State University.       --
28-- Extensive contributions were provided by Ada Core Technologies, Inc.     --
29--                                                                          --
30------------------------------------------------------------------------------
31
32package body System.Task_Primitives.Interrupt_Operations is
33
34   --  ??? The VxWorks version of System.Interrupt_Management needs to access
35   --  this array, but due to elaboration problems, it can't with this
36   --  package directly, so we export this variable for now.
37
38   Interrupt_ID_Map : array (IM.Interrupt_ID) of ST.Task_Id;
39   pragma Export (Ada, Interrupt_ID_Map,
40     "system__task_primitives__interrupt_operations__interrupt_id_map");
41
42   ----------------------
43   -- Get_Interrupt_ID --
44   ----------------------
45
46   function Get_Interrupt_ID (T : ST.Task_Id) return IM.Interrupt_ID is
47      use type ST.Task_Id;
48
49   begin
50      for Interrupt in IM.Interrupt_ID loop
51         if Interrupt_ID_Map (Interrupt) = T then
52            return Interrupt;
53         end if;
54      end loop;
55
56      raise Program_Error;
57   end Get_Interrupt_ID;
58
59   -----------------
60   -- Get_Task_Id --
61   -----------------
62
63   function Get_Task_Id (Interrupt : IM.Interrupt_ID) return ST.Task_Id is
64   begin
65      return Interrupt_ID_Map (Interrupt);
66   end Get_Task_Id;
67
68   ----------------------
69   -- Set_Interrupt_ID --
70   ----------------------
71
72   procedure Set_Interrupt_ID (Interrupt : IM.Interrupt_ID; T : ST.Task_Id) is
73   begin
74      Interrupt_ID_Map (Interrupt) := T;
75   end Set_Interrupt_ID;
76
77end System.Task_Primitives.Interrupt_Operations;
78