gcc/ada/s-tpinop.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS               --
   4 --                                                                          --
   5 --                S Y S T E M . T A S K _ P R I M I T I V E S .             --
   6 --                   I N T E R R U P T _ O P E R A T I O N S                --
   7 --                                                                          --
   8 --                                  B o d y                                 --
   9 --                                                                          --
  10 --                             $Revision: 1.6 $
  11 --                                                                          --
  12 --          Copyright (C) 1998-2001 Free Software Foundation, Inc.          --
  13 --                                                                          --
  14 -- GNARL is free software; you can  redistribute it  and/or modify it under --
  15 -- terms of the  GNU General Public License as published  by the Free Soft- --
  16 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  17 -- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
  18 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  19 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  20 -- for  more details.  You should have  received  a copy of the GNU General --
  21 -- Public License  distributed with GNARL; see file COPYING.  If not, write --
  22 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  23 -- MA 02111-1307, USA.                                                      --
  24 --                                                                          --
  25 -- As a special exception,  if other files  instantiate  generics from this --
  26 -- unit, or you link  this unit with other files  to produce an executable, --
  27 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  28 -- covered  by the  GNU  General  Public  License.  This exception does not --
  29 -- however invalidate  any other reasons why  the executable file  might be --
  30 -- covered by the  GNU Public License.                                      --
  31 --                                                                          --
  32 -- GNARL was developed by the GNARL team at Florida State University. It is --
  33 -- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
  34 -- State University (http://www.gnat.com).                                  --
  35 --                                                                          --
  36 ------------------------------------------------------------------------------
  37
  38 package body System.Task_Primitives.Interrupt_Operations is
  39
  40    --  ??? The VxWorks version of System.Interrupt_Management needs to access
  41    --  this array, but due to elaboration problems, it can't with this
  42    --  package directly, so we export this variable for now.
  43
  44    Interrupt_ID_Map : array (IM.Interrupt_ID) of ST.Task_ID;
  45    pragma Export (Ada, Interrupt_ID_Map,
  46      "system__task_primitives__interrupt_operations__interrupt_id_map");
  47
  48    ----------------------
  49    -- Get_Interrupt_ID --
  50    ----------------------
  51
  52    function Get_Interrupt_ID (T : ST.Task_ID) return IM.Interrupt_ID is
  53       use type ST.Task_ID;
  54
  55    begin
  56       for Interrupt in IM.Interrupt_ID loop
  57          if Interrupt_ID_Map (Interrupt) = T then
  58             return Interrupt;
  59          end if;
  60       end loop;
  61
  62       raise Program_Error;
  63    end Get_Interrupt_ID;
  64
  65    -----------------
  66    -- Get_Task_ID --
  67    -----------------
  68
  69    function Get_Task_ID (Interrupt : IM.Interrupt_ID) return ST.Task_ID is
  70    begin
  71       return Interrupt_ID_Map (Interrupt);
  72    end Get_Task_ID;
  73
  74    ----------------------
  75    -- Set_Interrupt_ID --
  76    ----------------------
  77
  78    procedure Set_Interrupt_ID (Interrupt : IM.Interrupt_ID; T : ST.Task_ID) is
  79    begin
  80       Interrupt_ID_Map (Interrupt) := T;
  81    end Set_Interrupt_ID;
  82
  83 end System.Task_Primitives.Interrupt_Operations;