source: sources/src/usage.h @ 56

Last change on this file since 56 was 52, checked in by meunier, 12 years ago

Code formatting in all source files.

File size: 2.9 KB
Line 
1/*------------------------------------------------------------\
2  |                                                             |
3  | Tool    :                  systemcass                       |
4  |                                                             |
5  | File    :                  usage.h                          |
6  |                                                             |
7  | Author  :                 Buchmann Richard                  |
8  |                                                             |
9  | Date    :                   ??_??_2005                      |
10  |                                                             |
11  \------------------------------------------------------------*/
12
13/*
14 * This file is part of the Disydent Project
15 * Copyright (C) Laboratoire LIP6 - Département ASIM
16 * Universite Pierre et Marie Curie
17 *
18 * Home page          : http://www-asim.lip6.fr/disydent
19 * E-mail             : mailto:richard.buchmann@lip6.fr
20 *
21 * This library is free software; you  can redistribute it and/or modify it
22 * under the terms  of the GNU Library General Public  License as published
23 * by the Free Software Foundation; either version 2 of the License, or (at
24 * your option) any later version.
25 *
26 * Disydent is distributed  in the hope  that it  will be
27 * useful, but WITHOUT  ANY WARRANTY; without even the  implied warranty of
28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
29 * Public License for more details.
30 *
31 * You should have received a copy  of the GNU General Public License along
32 * with the GNU C Library; see the  file COPYING. If not, write to the Free
33 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
34 */
35
36#ifndef __USAGE_H__
37#define __USAGE_H__
38
39#include <sys/time.h>
40#include <sys/resource.h>
41#include <unistd.h>
42#include <iostream>
43
44struct usage_t {
45    unsigned int elapsed_time;
46    long memory_size;
47    usage_t() {
48        elapsed_time = 0;
49        memory_size  = 0;
50    }
51
52    void start() {
53        struct rusage usage;
54        getrusage(RUSAGE_SELF, &usage);
55        elapsed_time = usage.ru_utime.tv_sec;
56        memory_size = usage.ru_maxrss;
57    }
58
59    void cont() {
60        struct rusage usage;
61        getrusage(RUSAGE_SELF, &usage);
62        elapsed_time = usage.ru_utime.tv_sec - elapsed_time;
63        memory_size = usage.ru_maxrss;
64    }
65
66    void stop() {
67        cont();
68    }
69
70    operator unsigned int () const {
71        return elapsed_time;
72    }
73
74    long get_memory_size () const {
75        return memory_size;
76    }
77
78    friend std::ostream & operator << (std::ostream & o, const usage_t & c) {
79        return o << c.elapsed_time << "seconds";
80    }
81
82};
83
84#endif
85
86/*
87# Local Variables:
88# tab-width: 4;
89# c-basic-offset: 4;
90# c-file-offsets:((innamespace . 0)(inline-open . 0));
91# indent-tabs-mode: nil;
92# End:
93#
94# vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=4:softtabstop=4
95*/
96
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