TimesGen.h

Go to the documentation of this file.

/*--------------------------------*- VM2D -*-----------------*---------------*\
| ##  ## ##   ##  ####  #####   |                            | Version 1.14   |
| ##  ## ### ### ##  ## ##  ##  |  VM2D: Vortex Method       | 2026/03/06     |
| ##  ## ## # ##    ##  ##  ##  |  for 2D Flow Simulation    *----------------*
|  ####  ##   ##   ##   ##  ##  |  Open Source Code                           |
|   ##   ##   ## ###### #####   |  https://www.github.com/vortexmethods/VM2D  |
|                                                                             |
| Copyright (C) 2017-2026 I. Marchevsky, K. Sokol, E. Ryatina, A. Kolganova   |
*-----------------------------------------------------------------------------*
| File name: TimesGen.h                                                       |
| Info: Source code of VM2D                                                   |
|                                                                             |
| This file is part of VM2D.                                                  |
| VM2D 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.                                         |
|                                                                             |
| VM2D 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 VM2D.  If not, see <http://www.gnu.org/licenses/>.               |
\*---------------------------------------------------------------------------*/
 
 
#ifndef TIMESGEN_H
#define TIMESGEN_H
 
#include <chrono>
#include <map>
#include <memory>
#include "defs.h"
 
namespace VMlib
{   
    class WorldGen;
    
    class vmTimer
    {
        const std::string label;
 
        using Clock = std::chrono::high_resolution_clock;
 
        mutable bool active = false;
 
        mutable std::chrono::duration<float> duration_;
 
        mutable Clock::time_point start_ = Clock::now();
 
        mutable Clock::time_point stop_ = Clock::now();
 
        // Запрет на копирование счетчика
        vmTimer(const vmTimer&) = delete;
        vmTimer& operator=(const vmTimer&) = delete;
 
    public:
        //using ns = std::chrono::nanoseconds;
        //using mks = std::chrono::microseconds;
        //using ms = std::chrono::milliseconds;
        //using s = std::chrono::seconds;
 
        using ms = std::chrono::duration<float, std::chrono::milliseconds::period>;
        
        using s = std::chrono::duration<float, std::chrono::seconds::period>;
 
        vmTimer(const std::string& timerLabel = "") : label(timerLabel) { reset(); }
        ~vmTimer() = default;
        
        const vmTimer& reset() const
        {
            duration_ = std::chrono::seconds(0);
            active = false;
            return *this;
        }
 
        const vmTimer& start() const
        {
            if (!active)
            {
                start_ = Clock::now();
                active = true;
            }
            else
            {
                std::cout << "Timer " << label << " was not stopped before being start!" << std::endl;
                exit(-15);
            }
            return *this;
        }
 
        const vmTimer& stop() const
        {
            if (active)
            {
                stop_ = Clock::now();
                duration_ += stop_ - start_;
                active = false;
            }
            else
            {
                std::cout << "Timer " << label << " was not started before being stopped!" << std::endl;
                exit(-15);
            }
            return *this;
        }
 
 
        template<typename T = ms>
        double duration() const
        {
            return std::chrono::duration_cast<T>(duration_).count();
        }
    };
 
 
    class TimersGen    
    { 
    private:
        const WorldGen& W;
 
    protected:
        std::vector<std::string> timerLabelList;
 
        std::map<std::string, std::unique_ptr<vmTimer>> timer;    
    
    public:
        TimersGen(const WorldGen& W_, std::vector<std::string> labels);
 
        void start(const std::string& timerLabel);
 
        void stop(const std::string& timerLabel);
 
        void resetAll();
 
        template<typename T = vmTimer::s>
        double durationStep() const
        {
            return (timer.at("Step"))->duration<T>();
        }
 
        void GenerateStatHeader();
 
        void GenerateStatString(size_t stepNo, double curTime, size_t N);
    };
 
 
 
 
    class TimesGen
    {
    protected:
        static void ToZeroPeriod(timePeriod& period)
        {
            period.first = 0;
            period.second = 0;
        }//ToZero(...)
 
    public:
        TimesGen() {};
 
        virtual ~TimesGen() {};
 
 
        virtual void GenerateStatHeader() const = 0;
 
        virtual void GenerateStatString() const = 0;
        
        virtual void ToZero() = 0;
 
        static double dT(const timePeriod& t)
        {
            return (t.second - t.first);
        }//dT(...)
    };
 
}//namespace VMlib
 
#endif