ClockConverter.h

/* 
   EyeDB Object Database Management System
   Copyright (C) 1994-2008 SYSRA
   
   EyeDB is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.
   
   EyeDB is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.
   
   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA 
*/

/*
   Author: Laurent Pereira
*/



#ifndef _EYEDB_CLOCK_CONVERTER_H
#define _EYEDB_CLOCK_CONVERTER_H

#include <eyedb/eyedb.h>

namespace eyedb {

  class ClockConverter
  {
  
  private:
    char * string_clock;
    char * string_zone;


  public:

    ClockConverter();
    virtual ~ClockConverter();




    void usec2clock(const eyedblib::int64 usec, eyedblib::int16 * hour = 0, eyedblib::int16 * min = 0, eyedblib::int16 *sec = 0, eyedblib::int16 * ms = 0, eyedblib::int16 *us = 0);
    void clock2usec(eyedblib::int64 *usec, const eyedblib::int16 hour = 0, const eyedblib::int16 min = 0, const eyedblib::int16 sec = 0, const eyedblib::int16 ms = 0, const eyedblib::int16 us = 0);

  
    eyedblib::int32 usec2day(eyedblib::int64 usec);


    void tz2clock(const eyedblib::int16 tz, eyedblib::int16 * hour, eyedblib::int16 * min);

    void clock2tz(eyedblib::int16 * tz, const eyedblib::int16 hour, const eyedblib::int16 min);


    eyedblib::int64 ascii2usec(const char * t);

    char * usec2ascii(const eyedblib::int64 usec);


    eyedblib::int16 ascii2tz(const char * tz);

    char * tz2ascii(const eyedblib::int16 tz);




    eyedblib::int64 current_time();
 
  
    eyedblib::int16 local_timezone();

  };


  //
  // Constants
  //

  extern const eyedblib::int64 USEC_OF_DAY;
  extern const eyedblib::int64 USEC_OF_HOUR;
  extern const eyedblib::int32 USEC_OF_MINUTE;
  extern const eyedblib::int32 USEC_OF_SECOND;
  extern const eyedblib::int16 USEC_OF_MILLISECOND;
  extern const eyedblib::int16 MAX_TZ;
  extern const eyedblib::int16 MIN_TZ;
}

#endif

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