Stopwatch.hpp

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#ifndef MEDUSA_BITS_UTILS_STOPWATCH_HPP_
#define MEDUSA_BITS_UTILS_STOPWATCH_HPP_
 
#include <medusa/Config.hpp>
#include <vector>
#include <chrono>
#include <string>
#include <ostream>
 
namespace mm {
 
class Stopwatch {
    typedef std::chrono::steady_clock::time_point time_type;  
    std::vector<std::string> labels;  
    std::vector<double> cumulative_time;  
    std::vector<int> counts;  
    std::vector<time_type> times;  
    std::vector<bool> currently_running;  
 
    int getID(const std::string& label) const;
 
  public:
    void start(const std::string& label);
    void stop(const std::string& label);
    double cumulativeTime(const std::string& label) const;
    int numLaps(const std::string& label) const;
    double timePerLap(const std::string& label) const;
    bool isRunning(const std::string& label) const { return currently_running[getID(label)]; }
    void clear();
    friend std::ostream& operator<<(std::ostream& os, const Stopwatch& stopwatch);
};
 
}  // namespace mm
 
#endif  // MEDUSA_BITS_UTILS_STOPWATCH_HPP_