1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
5 -- S Y S T E M . P O O L _ G L O B A L --
11 -- Copyright (C) 1992-2001, Free Software Foundation, Inc. --
13 -- GNAT is free software; you can redistribute it and/or modify it under --
14 -- terms of the GNU General Public License as published by the Free Soft- --
15 -- ware Foundation; either version 2, or (at your option) any later ver- --
16 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
17 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
18 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
19 -- for more details. You should have received a copy of the GNU General --
20 -- Public License distributed with GNAT; see file COPYING. If not, write --
21 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
22 -- MA 02111-1307, USA. --
24 -- As a special exception, if other files instantiate generics from this --
25 -- unit, or you link this unit with other files to produce an executable, --
26 -- this unit does not by itself cause the resulting executable to be --
27 -- covered by the GNU General Public License. This exception does not --
28 -- however invalidate any other reasons why the executable file might be --
29 -- covered by the GNU Public License. --
31 -- GNAT was originally developed by the GNAT team at New York University. --
32 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
34 ------------------------------------------------------------------------------
36 with System.Storage_Pools; use System.Storage_Pools;
37 with System.Storage_Elements;
40 package body System.Pool_Global is
42 package SSE renames System.Storage_Elements;
49 (Pool : in out Unbounded_No_Reclaim_Pool;
50 Address : out System.Address;
51 Storage_Size : SSE.Storage_Count;
52 Alignment : SSE.Storage_Count)
54 Allocated : System.Address;
56 Allocated := Memory.Alloc (Memory.size_t (Storage_Size));
58 -- The call to Alloc returns an address whose alignment is compatible
59 -- with the worst case alignment requirement for the machine; thus the
60 -- Alignment argument can be safely ignored.
62 if Allocated = Null_Address then
74 (Pool : in out Unbounded_No_Reclaim_Pool;
75 Address : System.Address;
76 Storage_Size : SSE.Storage_Count;
77 Alignment : SSE.Storage_Count) is
79 Memory.Free (Address);
87 (Pool : Unbounded_No_Reclaim_Pool)
88 return SSE.Storage_Count
91 -- Intuitively, should return System.Memory_Size. But on Sun/Alsys,
92 -- System.Memory_Size > System.Max_Int, which means all you can do with
93 -- it is raise CONSTRAINT_ERROR...
95 return SSE.Storage_Count'Last;
98 end System.Pool_Global;