1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/*
//
// Copyright 1997-2009 Torsten Rohlfing
//
// Copyright 2004-2010 SRI International
//
// This file is part of the Computational Morphometry Toolkit.
//
// http://www.nitrc.org/projects/cmtk/
//
// The Computational Morphometry Toolkit is free software: you can
// redistribute it and/or modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// The Computational Morphometry Toolkit is distributed in the hope that it
// will be useful, but WITHOUT ANY WARRANTY; without even the implied
// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with the Computational Morphometry Toolkit. If not, see
// <http://www.gnu.org/licenses/>.
//
// $Revision: 5436 $
//
// $LastChangedDate: 2018-12-10 19:01:20 -0800 (Mon, 10 Dec 2018) $
//
// $LastChangedBy: torstenrohlfing $
//
*/
#include "cmtkMemory.h"
#ifdef HAVE_MALLOC_H
# include <malloc.h>
#endif
#include <stdio.h> // thanks to Hans Johnson for pointing this out
#include <limits.h>
namespace
cmtk
{
namespace
Memory
{
size_t
GetNextPowerOfTwo( size_t k )
{
// http://en.wikipedia.org/wiki/Power_of_two#Algorithm_to_find_the_next-highest_power_of_two
if (k == 0)
return 1;
k--;
for (size_t i=1; i<sizeof(size_t)*CHAR_BIT; i<<=1)
k = k | k >> i;
return k+1;
}
size_t
Used ()
{
#ifdef HAVE_MALLINFO
struct mallinfo stats = mallinfo();
return stats.uordblks + stats.usmblks;
#else
return 0;
#endif
}
void
Info ( const char *msg )
{
const int used = Used();
if (msg )
printf("%d bytes in use %s\n",used,msg);
else
printf("%d bytes in use.\n",used);
}
void
Diff ( const size_t before, const char *msg )
{
const int diff = Used()-before;
if (diff<0)
printf("%s freed %d bytes.\n",msg,-diff);
else
printf("%s allocated %d bytes.\n",msg,diff);
}
} // namespace Memory
} // namespace cmtk
|
