gcc/ada/s-taspri-dummy.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                 GNAT 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 --                                                                          --
   7 --                                  S p e c                                 --
   8 --                                                                          --
   9 --          Copyright (C) 1991-2009, 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
  32 --  This is a no tasking version of this package
  33
  34 pragma Polling (Off);
  35 --  Turn off polling, we do not want ATC polling to take place during tasking
  36 --  operations. It causes infinite loops and other problems.
  37
  38 package System.Task_Primitives is
  39    pragma Preelaborate;
  40
  41    type Lock is new Integer;
  42
  43    type RTS_Lock is new Integer;
  44
  45    type Suspension_Object is new Integer;
  46
  47    type Task_Body_Access is access procedure;
  48
  49    type Private_Data is record
  50       Thread : aliased Integer;
  51       CV     : aliased Integer;
  52       L      : aliased RTS_Lock;
  53    end record;
  54
  55    subtype Task_Address is System.Address;
  56    --  In some versions of Task_Primitives, notably for VMS, Task_Address is
  57    --  the short version of address defined in System.Aux_DEC. To avoid
  58    --  dragging Aux_DEC into tasking packages a tasking specific subtype is
  59    --  defined here.
  60
  61    Task_Address_Size : constant := Standard'Address_Size;
  62    --  The size of Task_Address
  63
  64    Alternate_Stack_Size : constant := 0;
  65    --  No alternate signal stack is used on this platform
  66
  67 end System.Task_Primitives;