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/*
* Copyright (c) 2009 Regents of the University of Michigan
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef _PERFORMANCE_H
#define _PERFORMANCE_H
#include <sys/time.h>
#include <time.h>
class Timing
{
timeval startInterval;
timeval endInterval;
public:
Timing()
{
start();
}
void start();
void end();
double interval();
};
inline void Timing::start()
{
gettimeofday(&startInterval, NULL);
}
inline void Timing::end()
{
gettimeofday(&endInterval, NULL);
}
///
/// Return time interval between start() and end()
/// @return elapsed time in seconds
///
inline double Timing::interval()
{
return (endInterval.tv_sec + (endInterval.tv_usec/1000000.0)) -
(startInterval.tv_sec + (startInterval.tv_usec/1000000.0));
}
#endif
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