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timer.hpp
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1 
5 /* Copyright (c) 2005-2011 Taneli Kalvas. All rights reserved.
6  *
7  * You can redistribute this software and/or modify it under the terms
8  * of the GNU General Public License as published by the Free Software
9  * Foundation; either version 2 of the License, or (at your option)
10  * any later version.
11  *
12  * This library is distributed in the hope that it will be useful, but
13  * WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this library (file "COPYING" included in the package);
19  * if not, write to the Free Software Foundation, Inc., 51 Franklin
20  * Street, Fifth Floor, Boston, MA 02110-1301 USA
21  *
22  * If you have questions about your rights to use or distribute this
23  * software, please contact Berkeley Lab's Technology Transfer
24  * Department at TTD@lbl.gov. Other questions, comments and bug
25  * reports should be sent directly to the author via email at
26  * taneli.kalvas@jyu.fi.
27  *
28  * NOTICE. This software was developed under partial funding from the
29  * U.S. Department of Energy. As such, the U.S. Government has been
30  * granted for itself and others acting on its behalf a paid-up,
31  * nonexclusive, irrevocable, worldwide license in the Software to
32  * reproduce, prepare derivative works, and perform publicly and
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34  * permission to assert copyright is obtained from the U.S. Department
35  * of Energy, and subject to any subsequent five (5) year renewals,
36  * the U.S. Government is granted for itself and others acting on its
37  * behalf a paid-up, nonexclusive, irrevocable, worldwide license in
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39  * copies to the public, perform publicly and display publicly, and to
40  * permit others to do so.
41  */
42 
43 #ifndef TIMER_HPP
44 #define TIMER_HPP 1
45 
46 
47 #include <iostream>
48 #include <time.h>
49 #include <sys/time.h>
50 
51 
54 class Timer {
55 
56  clock_t _cpu1, _cpu2;
57  struct timeval _time1, _time2;
58 
59 public:
60 
63  Timer();
64 
67  ~Timer() {}
68 
71  void start( void );
72 
75  void stop( void );
76 
79  double get_real_time( void ) const;
80 
83  double get_cpu_time( void ) const;
84 
87  friend std::ostream &operator<<( std::ostream &os, const Timer &t );
88 };
89 
90 
91 #endif
Class for measuring code runtime in cpu time and realtime.
Definition: timer.hpp:54
~Timer()
Destruct timer.
Definition: timer.hpp:67
double get_cpu_time(void) const
Get cpu time elapsed in seconds.
Definition: timer.cpp:77
Timer()
Construct and start timer.
Definition: timer.cpp:47
double get_real_time(void) const
Get real time elapsed in seconds.
Definition: timer.cpp:68
void start(void)
Start timer.
Definition: timer.cpp:54
friend std::ostream & operator<<(std::ostream &os, const Timer &t)
Print report of elapsed time to stream.
Definition: timer.cpp:83
void stop(void)
Stop timer.
Definition: timer.cpp:61


Reference manual for Ion Beam Simulator 1.0.6dev
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