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Diffstat (limited to 'trunk/src/GudhUI/utils/MClock.h')
-rw-r--r-- | trunk/src/GudhUI/utils/MClock.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/trunk/src/GudhUI/utils/MClock.h b/trunk/src/GudhUI/utils/MClock.h new file mode 100644 index 00000000..e8d8918a --- /dev/null +++ b/trunk/src/GudhUI/utils/MClock.h @@ -0,0 +1,70 @@ +/* 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_ |