MercuryTime.h

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//Copyright (c) 2013-2014, The MercuryDPM Developers Team. All rights reserved.
//For the list of developers, see <http://www.MercuryDPM.org/Team>.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions are met:
//  * Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//  * Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//  * Neither the name MercuryDPM nor the
//    names of its contributors may be used to endorse or promote products
//    derived from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
//ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
//WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
//DISCLAIMED. IN NO EVENT SHALL THE MERCURYDPM DEVELOPERS TEAM BE LIABLE FOR ANY
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//(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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//SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef TIME_H
#define TIME_H

#include <ctime>
#include <time.h>
#include <string.h>
#include <sstream>

class Time {
    
public:
    void tic() {start = clock();}
    Mdouble toc() {finish = clock();    return (Mdouble(finish)-Mdouble(start))/CLOCKS_PER_SEC;     }
    
private:
    clock_t start,finish;
    
};

class Time2Finish {
    
public:
    void set(Mdouble t, Mdouble tmax) {start = clock(); t_=t; tmax_=tmax;}
    
    Mdouble getTime2Finish(Mdouble t) {
        clock_t finish = clock();
        Mdouble elapsedTime = (Mdouble(finish)-Mdouble(start))/CLOCKS_PER_SEC;
        Mdouble time2Finish = elapsedTime*(tmax_-t_)/(t-t_);
        start = finish;
        t_ = t;
        return time2Finish;     
    }
    
    std::string getFinishTime(Mdouble t) {  
        Mdouble time2Finish = getTime2Finish(t);
        time_t finish = time(NULL) + time2Finish;
        std::stringstream ss;
        //write estimated end time
        ss << ctime(&finish);
        //decrement put pointer by one to avoid line break
        ss.seekp((long)ss.tellp()-1);
        //write time to finish
        ss << " (" << time2Finish/3600 << "h)";
        return ss.str();
    }
    
private:
    clock_t start;
    Mdouble t_, tmax_;
    
};


#endif