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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 --
-- --
-- Copyright (C) 1992-2011, 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 3, 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. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
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;
overriding function Storage_Size
(Pool : Stack_Bounded_Pool) return System.Storage_Elements.Storage_Count;
overriding 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);
overriding procedure Deallocate
(Pool : in out Stack_Bounded_Pool;
Address : System.Address;
Storage_Size : System.Storage_Elements.Storage_Count;
Alignment : System.Storage_Elements.Storage_Count);
overriding procedure Initialize (Pool : in out Stack_Bounded_Pool);
end System.Pool_Size;
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