aslTimer.h

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/*
 * Advanced Simulation Library <http://asl.org.il>
 * 
 * Copyright 2015 Avtech Scientific <http://avtechscientific.com>
 *
 *
 * This file is part of Advanced Simulation Library (ASL).
 *
 * ASL is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, version 3 of the License.
 *
 * ASL 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with ASL. If not, see <http://www.gnu.org/licenses/>.
 *
 */
 
 
#ifndef ASLTIMER_H
#define ASLTIMER_H
 
#include <chrono>
#include <thread>
 
namespace asl{
using namespace std::chrono;

  class Timer {
    private:
      high_resolution_clock::time_point realTimeMark;
      duration<double> realTimeElapsed;
 
      clock_t processorTimeMark;
      double processorTimeElapsed;
    public:
      inline Timer() : processorTimeElapsed(0), realTimeElapsed(0) {};
      inline void start() {processorTimeMark = clock(); realTimeMark = high_resolution_clock::now();}
      inline void stop() {processorTimeElapsed += (double)(clock() - processorTimeMark); realTimeElapsed += duration_cast<duration<double>>(high_resolution_clock::now() - realTimeMark);}
      inline const double realTime() const{return realTimeElapsed.count();}
      inline const double processorTime() const{return (double)processorTimeElapsed/CLOCKS_PER_SEC;}
      inline const double processorLoad() const{return processorTime()/realTime();}
      inline void reset() {processorTimeElapsed = 0; realTimeElapsed = duration<double>(0);}
      inline const double estimatedDuration(double completeness) {return realTimeElapsed.count()/completeness;}
      inline const double estimatedRemainder(double completeness) {return (1. - completeness) * estimatedDuration(completeness);}
  };

  inline void sleep(unsigned int span)
  {
    std::this_thread::sleep_for(std::chrono::milliseconds(span));
  }
 
}  //namespace acl
 
#endif // ASLTIMER_H