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jeremybenn |
------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- S Y S T E M . P O O L _ G L O B A L --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- Storage pool corresponding to default global storage pool used for
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-- types for which no storage pool is specified.
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with System;
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with System.Storage_Pools;
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with System.Storage_Elements;
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package System.Pool_Global is
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pragma Elaborate_Body;
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-- Needed to ensure that library routines can execute allocators
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-- Allocation strategy:
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-- Call to malloc/free for each Allocate/Deallocate
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-- no user specifiable size
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-- no automatic reclaim
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-- minimal overhead
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-- Pool simulating the allocation/deallocation strategy used by the
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-- compiler for access types globally declared.
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type Unbounded_No_Reclaim_Pool is new
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System.Storage_Pools.Root_Storage_Pool with null record;
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function Storage_Size
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(Pool : Unbounded_No_Reclaim_Pool)
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return System.Storage_Elements.Storage_Count;
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procedure Allocate
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(Pool : in out Unbounded_No_Reclaim_Pool;
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Address : out System.Address;
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Storage_Size : System.Storage_Elements.Storage_Count;
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Alignment : System.Storage_Elements.Storage_Count);
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procedure Deallocate
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(Pool : in out Unbounded_No_Reclaim_Pool;
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Address : System.Address;
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Storage_Size : System.Storage_Elements.Storage_Count;
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Alignment : System.Storage_Elements.Storage_Count);
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-- Pool object used by the compiler when implicit Storage Pool objects are
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-- explicitly referred to. For instance when writing something like:
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-- for T'Storage_Pool use Q'Storage_Pool;
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-- and Q'Storage_Pool hasn't been defined explicitly.
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Global_Pool_Object : Unbounded_No_Reclaim_Pool;
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end System.Pool_Global;
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