timer.h

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#ifndef TIMER_INCLUDED
#define TIMER_INCLUDED
 
//#define USE_RUSAGE
#undef USE_RUSAGE
 
#ifdef USE_RUSAGE
#include <sys/resource.h>
#endif
 
#include <cstdio>
#include <time.h>
#include <sys/time.h>
 
#include "IO/bridgeIO.h"
using Bridge::vout;
 
class Timer
{
 public:
  static const std::string class_name;
 
 public:
  Timer(const std::string& id = "", const bool report = false)
    : is_started(false), m_start(0), m_elapsed(0), m_counter(0),
    m_id(id),
    m_report_on_exit(report)
  {}
 
  ~Timer();
 
 private:
  // non-copyable
  Timer(const Timer&);
  Timer& operator=(const Timer&);
 
 public:
 
  void start();
  void stop();
  void reset();
 
  static void timestamp();
 
  double elapsed_sec() const;
  double elapsed_msec() const;
  unsigned long get_counter() const;
 
  void report(const Bridge::VerboseLevel vl = Bridge::GENERAL);
 
 private:
  bool is_started;
  double m_start;
 
  double m_elapsed;        // sec.
  unsigned long m_counter;
 
  std::string m_id;
  bool m_report_on_exit;
};
#endif /* _TIMER_H_ */