gcc/ada/libgnarl/s-tpinop.adb

   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) 1998-2018, 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
  32 package 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
  77 end System.Task_Primitives.Interrupt_Operations;