Timestamp.h

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/*
 * File: Timestamp.h
 * Author: Dorian Galvez-Lopez
 * Date: March 2009
 * Description: timestamping functions
 * License: see the LICENSE.txt file
 *
 */

#ifndef __D_TIMESTAMP__
#define __D_TIMESTAMP__

#include <iostream>
using namespace std;

namespace DUtils {

class Timestamp
{
public:

  enum tOptions
  {
    NONE = 0,
    CURRENT_TIME = 0x1,
    ZERO = 0x2
  };
  
public:
  
        Timestamp(Timestamp::tOptions option = NONE);
        
        virtual ~Timestamp(void);

  bool empty() const;

        void setToCurrentTime();

        inline void setTime(unsigned long secs, unsigned long usecs){
                m_secs = secs;
                m_usecs = usecs;
        }
        
        inline void getTime(unsigned long &secs, unsigned long &usecs) const
        {
          secs = m_secs;
          usecs = m_usecs;
        }

        void setTime(const string &stime);
        
        void setTime(double s);
        
        double getFloatTime() const;

        string getStringTime() const;

        double operator- (const Timestamp &t) const;

        Timestamp plus(unsigned long s, unsigned long us) const;

  Timestamp minus(unsigned long s, unsigned long us) const;

  Timestamp& operator+= (double s);
  
  Timestamp& operator-= (double s);

        Timestamp operator+ (double s) const;

        Timestamp operator- (double s) const;

        bool operator> (const Timestamp &t) const;

        bool operator>= (const Timestamp &t) const;

        bool operator== (const Timestamp &t) const;

        bool operator< (const Timestamp &t) const;

        bool operator<= (const Timestamp &t) const;

  string Format(bool machine_friendly = false) const;

        static string Format(double s);
        

protected:
        unsigned long m_secs;   // seconds
        unsigned long m_usecs;  // microseconds
};

}

#endif