#ifndef _COMMON_PROFILER_HPP_
#define _COMMON_PROFILER_HPP_
#include <chrono>

class Profiler
{
  public:
    Profiler();
    virtual ~Profiler();
    void start(void);
    long end(void);
    long elapsed(void);
  private:
    std::chrono::_V2::system_clock::time_point start_time = std::chrono::high_resolution_clock::now();
};

inline
Profiler::Profiler()
{
}

inline
Profiler::~Profiler()
{
}

inline
void Profiler::start(void)
{
  start_time = std::chrono::high_resolution_clock::now();
}

inline
long Profiler::end(void)
{
  std::chrono::_V2::system_clock::time_point end_time = std::chrono::high_resolution_clock::now();
  long elapsed_time_ms = std::chrono::duration_cast<std::chrono::milliseconds>(end_time - start_time).count();
  return elapsed_time_ms;
}

inline
long Profiler::elapsed(void)
{
  return end();
}
#endif