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Added memusage.c to debug directory.
[icculus/xz.git] / debug / memusage.c
1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 /// \file       memusage.c
4 /// \brief      Calculates memory usage using lzma_memory_usage()
5 ///
6 //  Copyright (C) 2008 Lasse Collin
7 //
8 //  This library is free software; you can redistribute it and/or
9 //  modify it under the terms of the GNU Lesser General Public
10 //  License as published by the Free Software Foundation; either
11 //  version 2.1 of the License, or (at your option) any later version.
12 //
13 //  This library is distributed in the hope that it will be useful,
14 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
15 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 //  Lesser General Public License for more details.
17 //
18 ///////////////////////////////////////////////////////////////////////////////
19
20 #include "sysdefs.h"
21 #include <stdio.h>
22
23 int
24 main(void)
25 {
26
27         lzma_options_lzma lzma = {
28                 .dictionary_size = (1 << 27) + (1 << 26),
29                 .literal_context_bits = 3,
30                 .literal_pos_bits = 0,
31                 .pos_bits = 2,
32                 .preset_dictionary = NULL,
33                 .preset_dictionary_size = 0,
34                 .mode = LZMA_MODE_BEST,
35                 .fast_bytes = 48,
36                 .match_finder = LZMA_MF_BT4,
37                 .match_finder_cycles = 0,
38         };
39
40 /*
41         lzma_options_filter filters[] = {
42                 { LZMA_FILTER_LZMA,
43                         (lzma_options_lzma *)&lzma_preset_lzma[6 - 1] },
44                 { UINT64_MAX, NULL }
45         };
46 */
47         lzma_options_filter filters[] = {
48                 { LZMA_FILTER_LZMA, &lzma },
49                 { UINT64_MAX, NULL }
50         };
51
52         printf("%u MiB\n", lzma_memory_usage(filters, true));
53
54         return 0;
55 }