opm-core/opm/core/utility/StopWatch.hpp
2013-01-29 13:17:01 +01:00

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2.2 KiB
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//===========================================================================
//
// File: StopWatch.hpp
//
// Created: Thu Jul 2 23:04:17 2009
//
// Author(s): Atgeirr F Rasmussen <atgeirr@sintef.no>
//
// $Date$
//
// $Revision$
//
//===========================================================================
/*
Copyright 2009, 2010 SINTEF ICT, Applied Mathematics.
Copyright 2009, 2010 Statoil ASA.
This file is part of the Open Porous Media project (OPM).
OPM 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.
OPM 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 OPM. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OPM_STOPWATCH_HEADER
#define OPM_STOPWATCH_HEADER
#include <boost/date_time/posix_time/posix_time.hpp>
namespace Opm
{
namespace time
{
class StopWatch
{
public:
/// Default constructor. Before the StopWatch is start()-ed,
/// it is an error to call anything other than start().
StopWatch();
/// Starts the StopWatch. It is always legal to call
/// start(), even if not stop()-ped.
void start();
/// Stops the StopWatch. The watch no longer runs, until
/// restarted by a call to start().
void stop();
/// \return the number of running seconds that have passed
/// since last call to start(), secsSinceLast() or
/// secsSinceStart()
double secsSinceLast();
/// \return the number of running seconds that have passed
/// since last call to start().
double secsSinceStart();
private:
enum StopWatchState { UnStarted, Running, Stopped };
StopWatchState state_;
boost::posix_time::ptime start_time_;
boost::posix_time::ptime last_time_;
boost::posix_time::ptime stop_time_;
};
} // namespace time
} // namespace Opm
#endif // OPM_STOPWATCH_HEADER