|
111
|
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 -- --
|
|
131
|
9 -- Copyright (C) 1992-2018, Free Software Foundation, Inc. --
|
|
111
|
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
|
|
|
34 with System.Storage_Elements;
|
|
|
35 with System.Pool_Global;
|
|
|
36
|
|
|
37 package 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
|
|
|
74 end System.Pool_Local;
|
