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/* This file is part of the Gudhi Library. The Gudhi library
* (Geometric Understanding in Higher Dimensions) is a generic C++
* library for computational topology.
*
* Author(s): David Salinas
*
* Copyright (C) 2014 INRIA Sophia Antipolis-Mediterranee (France)
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef UTILS_MCLOCK_H_
#define UTILS_MCLOCK_H_
#include <sys/time.h>
class MClock {
public:
MClock() {
end_called = false;
begin();
}
void begin() const {
end_called = false;
gettimeofday(&startTime, NULL);
}
void end() const {
end_called = true;
gettimeofday(&endTime, NULL);
}
friend std::ostream& operator<<(std::ostream& stream, const MClock& clock) {
// if(!clock.end_called) clock.end();
if (!clock.end_called) {
stream << "end not called";
} else {
long totalTime = (clock.endTime.tv_sec - clock.startTime.tv_sec) * 1000000L;
totalTime += (clock.endTime.tv_usec - clock.startTime.tv_usec);
stream << clock.num_seconds() << "s";
}
return stream;
}
double num_seconds() const {
if (!end_called) end();
long totalTime = (endTime.tv_sec - startTime.tv_sec) * 1000000L;
totalTime += (endTime.tv_usec - startTime.tv_usec);
return (totalTime / 1000L) / static_cast<double>(1000);
}
private:
mutable struct timeval startTime, endTime;
mutable bool end_called;
};
#endif // UTILS_MCLOCK_H_
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