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