111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
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/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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Small class for time measurement. Elapsed (real) time and used CPU time can
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be computed according to a reference time defined by creation of the object or
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by the start method. Times can be returnd as a double value representing seconds
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or formatted as a string.
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July 2004, M. Spiekermann. The class was created as replacement for calss TimeTest.
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An instance could be used as a clock to measure time differences.
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*/
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#ifndef STOPWATCH_H
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#define STOPWATCH_H
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#include <string>
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#include "SecondoConfig.h"
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#ifndef SECONDO_WIN32
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#include <sys/times.h>
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#include <sys/time.h>
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#else
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#include <time.h>
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#endif
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#include "SecondoConfig.h"
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#ifdef THREAD_SAFE
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#include <boost/thread.hpp>
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#endif
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class StopWatch {
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public:
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StopWatch();
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StopWatch(const StopWatch& src);
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StopWatch& operator=(const StopWatch& src);
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~StopWatch();
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// Reset the start time. Differences are computed with respect to this time
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void start();
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// return the real time difference (now-start) formatted as string
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const std::string diffReal();
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// return used CPU time since start formatted as string
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const std::string diffCPU();
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// return both times
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const std::string diffTimes();
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// return the time in format HH:MM:SS
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static const std::string timeStr(const time_t& inTime = 0);
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// return times in seconds
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double diffSecondsReal();
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double diffSecondsCPU();
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std::string minutesAndSeconds(const double seconds);
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static std::string currentTime();
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private:
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#ifdef SECONDO_WIN32
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time_t startReal;
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time_t stopReal;
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clock_t cstartCPU;
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clock_t cstopCPU;
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#else
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timeval startReal;
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timeval stopReal;
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struct tms startCPU;
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struct tms stopCPU;
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#endif
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#ifdef THREAD_SAFE
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boost::mutex mtx;
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#endif
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};
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#endif
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