StopWatchPack_stopwatch.hpp

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// Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
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#ifndef STPWATCH_H
#define STPWATCH_H

#include "Moocho_ConfigDefs.hpp"

namespace StopWatchPack {


double seconds(void);

class stopwatch {
public:

  stopwatch() : running_(false), last_time_(0.0), total_(0.0)
  {}

  bool is_running() const {
    return running_;
  }

  void start() {
    if (!running_) {
      last_time_ = seconds();
      running_ = true;
    }
  }

  double stop()  {
    if (running_) {
      total_ += seconds() - last_time_; 
      running_ = false;
    }
    //std::cout << "total = " << total_ << std::endl;
    return total_; 
  }

  void reset() {
    running_ = false;
    last_time_ = 0.0;
    total_ = 0.0;
  }

  double read() {
    if (running_) {
      double curr_time = seconds();
      total_ += curr_time - last_time_;
      last_time_ = curr_time;
    }
    return total_;
  }
  
private:
  bool running_;
  double last_time_;
  double total_;
};

//  end namespace StopWatchPack 

}  // end namespace StopWatchPack 

#endif // STPWATCH_H