gcc/ada/s-chepoo.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                 S Y S T E M . C H E C K E D _ P O O L S                  --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNAT 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 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31
  32 with System.Storage_Elements;
  33 with System.Storage_Pools;
  34 package System.Checked_Pools is
  35
  36    type Checked_Pool is abstract
  37      new System.Storage_Pools.Root_Storage_Pool with private;
  38    --  Equivalent of storage pools with the addition that Dereference is
  39    --  called on each implicit or explicit dereference of a pointer which
  40    --  has such a storage pool
  41
  42    procedure Dereference
  43      (Pool                     : in out Checked_Pool;
  44       Storage_Address          : Address;
  45       Size_In_Storage_Elements : System.Storage_Elements.Storage_Count;
  46       Alignment                : System.Storage_Elements.Storage_Count)
  47    is abstract;
  48    --  Called implicitly each time a pointer to a checked pool is dereferenced
  49    --  All parameters in the profile are compatible with the profile of
  50    --  Allocate/Deallocate: the Storage_Address corresponds to the address of
  51    --  the dereferenced object, Size_in_Storage_Elements is its dynamic size
  52    --  (and thus may involve an implicit dispatching call to size) and
  53    --  Alignment is the alignment of the object.
  54
  55 private
  56    type Checked_Pool is abstract
  57      new System.Storage_Pools.Root_Storage_Pool with null record;
  58 end System.Checked_Pools;