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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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-- B o d y --
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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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with System.Storage_Pools; use System.Storage_Pools;
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with System.Memory;
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package body System.Pool_Global is
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package SSE renames System.Storage_Elements;
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--------------
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-- Allocate --
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--------------
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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 : SSE.Storage_Count;
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Alignment : SSE.Storage_Count)
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is
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pragma Warnings (Off, Pool);
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pragma Warnings (Off, Alignment);
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Allocated : System.Address;
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begin
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Allocated := Memory.Alloc (Memory.size_t (Storage_Size));
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-- The call to Alloc returns an address whose alignment is compatible
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-- with the worst case alignment requirement for the machine; thus the
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-- Alignment argument can be safely ignored.
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if Allocated = Null_Address then
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raise Storage_Error;
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else
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Address := Allocated;
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end if;
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end Allocate;
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----------------
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-- Deallocate --
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----------------
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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 : SSE.Storage_Count;
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Alignment : SSE.Storage_Count)
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is
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pragma Warnings (Off, Pool);
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pragma Warnings (Off, Storage_Size);
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pragma Warnings (Off, Alignment);
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begin
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Memory.Free (Address);
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end Deallocate;
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------------------
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-- Storage_Size --
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------------------
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function Storage_Size
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(Pool : Unbounded_No_Reclaim_Pool)
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return SSE.Storage_Count
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is
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pragma Warnings (Off, Pool);
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begin
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-- Intuitively, should return System.Memory_Size. But on Sun/Alsys,
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-- System.Memory_Size > System.Max_Int, which means all you can do with
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-- it is raise CONSTRAINT_ERROR...
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return SSE.Storage_Count'Last;
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end Storage_Size;
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end System.Pool_Global;
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