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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- S Y S T E M . P O O L _ S I Z E --
-- --
-- S p e c --
-- --
-- $Revision: 1.5 $ --
-- --
-- Copyright (C) 1992,1993,1994 Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
-- --
------------------------------------------------------------------------------
with System.Storage_Pools;
with System.Storage_Elements;
package System.Pool_Size is
pragma Elaborate_Body;
-- Needed to ensure that library routines can execute allocators
------------------------
-- Stack_Bounded_Pool --
------------------------
-- Allocation strategy:
-- Pool is a regular stack array, no use of malloc
-- user specified size
-- Space of pool is globally reclaimed by normal stack management
-- Used in the compiler for access types with 'STORAGE_SIZE rep. clause
-- Only used for allocating objects of the same type.
type Stack_Bounded_Pool
(Pool_Size : System.Storage_Elements.Storage_Count;
Elmt_Size : System.Storage_Elements.Storage_Count;
Alignment : System.Storage_Elements.Storage_Count)
is
new System.Storage_Pools.Root_Storage_Pool with record
First_Free : System.Storage_Elements.Storage_Count;
First_Empty : System.Storage_Elements.Storage_Count;
Aligned_Elmt_Size : System.Storage_Elements.Storage_Count;
The_Pool : System.Storage_Elements.Storage_Array
(1 .. Pool_Size);
end record;
function Storage_Size
(Pool : Stack_Bounded_Pool)
return System.Storage_Elements.Storage_Count;
procedure Allocate
(Pool : in out Stack_Bounded_Pool;
Address : out System.Address;
Storage_Size : System.Storage_Elements.Storage_Count;
Alignment : System.Storage_Elements.Storage_Count);
procedure Deallocate
(Pool : in out Stack_Bounded_Pool;
Address : System.Address;
Storage_Size : System.Storage_Elements.Storage_Count;
Alignment : System.Storage_Elements.Storage_Count);
procedure Initialize (Pool : in out Stack_Bounded_Pool);
end System.Pool_Size;
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