home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
ADA Programming Guide
/
ADA Programming Guide.iso
/
ada_gnu
/
adainc
/
s-poosiz.ads
< prev
next >
Wrap
Text File
|
1996-01-30
|
4KB
|
79 lines
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- S Y S T E M . P O O L _ S I Z E --
-- --
-- S p e c --
-- --
-- $Revision: 1.4 $ --
-- --
-- Copyright (c) 1992,1993,1994 NYU, All Rights Reserved --
-- --
-- The GNAT library is free software; you can redistribute it and/or modify --
-- it under terms of the GNU Library General Public License as published by --
-- the Free Software Foundation; either version 2, or (at your option) any --
-- later version. The GNAT library is distributed in the hope that it will --
-- be useful, but WITHOUT ANY WARRANTY; without even the implied warranty --
-- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- Library General Public License for more details. You should have --
-- received a copy of the GNU Library General Public License along with --
-- the GNAT library; see the file COPYING.LIB. If not, write to the Free --
-- Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. --
-- --
------------------------------------------------------------------------------
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;