1 /**
2  * \file
3  * \brief Alloc list
4  */
5 /*
6  * (c) 2004-2009 Alexander Warg <warg@os.inf.tu-dresden.de>,
7  *               Torsten Frenzel <frenzel@os.inf.tu-dresden.de>
8  *     economic rights: Technische Universität Dresden (Germany)
9  *
10  * This file is part of TUD:OS and distributed under the terms of the
11  * GNU General Public License 2.
12  * Please see the COPYING-GPL-2 file for details.
13  *
14  * As a special exception, you may use this file as part of a free software
15  * library without restriction.  Specifically, if other files instantiate
16  * templates or use macros or inline functions from this file, or you compile
17  * this file and link it with other files to produce an executable, this
18  * file does not by itself cause the resulting executable to be covered by
19  * the GNU General Public License.  This exception does not however
20  * invalidate any other reasons why the executable file might be covered by
21  * the GNU General Public License.
22  */
23 #pragma once
24 
25 namespace L4 {
26 
27   /**
28    * \brief A simple list-based allocator.
29    * \ingroup cxx_api
30    */
31   class Alloc_list
32   {
33   public:
Alloc_list()34     Alloc_list() : _free(0) {}
Alloc_list(void * blk,unsigned long size)35     Alloc_list(void *blk, unsigned long size) : _free(0)
36     { free( blk, size); }
37 
38     void free(void *blk, unsigned long size);
39     void *alloc(unsigned long size);
40 
41   private:
42     struct Elem
43     {
44       Elem *next;
45       unsigned long size;
46     };
47 
48     Elem *_free;
49   };
50 }
51