/usr/include/ColPack/Timer.h is in libcolpack-dev 1.0.9-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (C) 2005-2008 Assefaw H. Gebremedhin, Arijit Tarafdar, Duc Nguyen,
Alex Pothen
This file is part of ColPack.
ColPack is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
ColPack 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with ColPack. If not, see <http://www.gnu.org/licenses/>.
************************************************************************************/
#include "Definitions.h"
#ifdef SYSTEM_TIME
#include <sys/times.h>
#ifndef CLK_TCK
#define CLK_TCK 100
#endif
#else
#include <ctime>
#endif
using namespace std;
#ifndef TIMER_H
#define TIMER_H
namespace ColPack
{
/** @ingroup group4
* @brief class Timer in @link group4@endlink.
The timer class is the only class in ColPack which has an optional dependency on the operating
system. It offers both system independent C++ timer based on ctime.h or linux/unix dependent timer based
on sys/times.h. The sytem independent timer only gives wall clock time while linux/unix dependent timer
gives wall, processor, user and system times.
*/
class Timer
{
private:
/// UNIX only. Used to measure longer execution time.
/** Define SYSTEM_TIME to measure the execution time of a program which may run for more than 30 minutes
(35.79 minutes or 2,147 seconds to be accurate)
Reason: In UNIX, CLOCKS_PER_SEC is defined to be 1,000,000 (In Windows, CLOCKS_PER_SEC == 1,000).
The # of clock-ticks is measured by using variables of type int => max value is 2,147,483,648.
Time in seconds = # of clock-ticks / CLOCKS_PER_SEC => max Time in seconds = 2,147,483,648 / 1,000,000 ~= 2,147
*/
#ifdef SYSTEM_TIME
struct tms tms_BeginTimer;
struct tms tms_EndTimer;
#endif
clock_t ct_BeginTimer;
clock_t ct_EndTimer;
public:
//Public Constructor 4351
Timer();
//Public Destructor 4352
~Timer();
//Public Function 4354
void Start();
//Public Function 4355
void Stop();
//Public Function 4356
double GetWallTime();
//Public Function 4357
double GetProcessorTime();
//Public Function 4358
double GetUserProcessorTime();
//Public Function 4359
double GetSystemProcessorTime();
};
}
#endif
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