1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT COMPILER COMPONENTS                         --
4--                                                                          --
5--                    S Y S T E M . P O O L _ L O C A L                     --
6--                                                                          --
7--                                 S p e c                                  --
8--                                                                          --
9--          Copyright (C) 1992-2019, Free Software Foundation, Inc.         --
10--                                                                          --
11-- GNAT is free software;  you can  redistribute it  and/or modify it under --
12-- terms of the  GNU General Public License as published  by the Free Soft- --
13-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
14-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
15-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
16-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
17--                                                                          --
18-- As a special exception under Section 7 of GPL version 3, you are granted --
19-- additional permissions described in the GCC Runtime Library Exception,   --
20-- version 3.1, as published by the Free Software Foundation.               --
21--                                                                          --
22-- You should have received a copy of the GNU General Public License and    --
23-- a copy of the GCC Runtime Library Exception along with this program;     --
24-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
25-- <http://www.gnu.org/licenses/>.                                          --
26--                                                                          --
27-- GNAT was originally developed  by the GNAT team at  New York University. --
28-- Extensive contributions were provided by Ada Core Technologies Inc.      --
29--                                                                          --
30------------------------------------------------------------------------------
31
32--  Storage pool for use with local objects with automatic reclaim
33
34with System.Storage_Elements;
35with System.Pool_Global;
36
37package System.Pool_Local is
38   pragma Elaborate_Body;
39   --  Needed to ensure that library routines can execute allocators
40
41   ----------------------------
42   -- Unbounded_Reclaim_Pool --
43   ----------------------------
44
45   --  Allocation strategy:
46
47   --    Call to malloc/free for each Allocate/Deallocate
48   --    No user specifiable size
49   --    Space of allocated objects is reclaimed at pool finalization
50   --    Manages a list of allocated objects
51
52   type Unbounded_Reclaim_Pool is new
53     System.Pool_Global.Unbounded_No_Reclaim_Pool with
54       record
55          First : System.Address := Null_Address;
56       end record;
57
58   --  function Storage_Size is inherited
59
60   procedure Allocate
61     (Pool         : in out Unbounded_Reclaim_Pool;
62      Address      : out System.Address;
63      Storage_Size : System.Storage_Elements.Storage_Count;
64      Alignment    : System.Storage_Elements.Storage_Count);
65
66   procedure Deallocate
67     (Pool         : in out Unbounded_Reclaim_Pool;
68      Address      : System.Address;
69      Storage_Size : System.Storage_Elements.Storage_Count;
70      Alignment    : System.Storage_Elements.Storage_Count);
71
72   procedure Finalize (Pool : in out Unbounded_Reclaim_Pool);
73
74end System.Pool_Local;
75