UnixTime.hpp

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//==============================================================================
//
//  This file is part of GNSSTk, the ARL:UT GNSS Toolkit.
//
//  The GNSSTk 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 3.0 of the License, or
//  any later version.
//
//  The GNSSTk 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 GNSSTk; if not, write to the Free Software Foundation,
//  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
//
//  This software was developed by Applied Research Laboratories at the
//  University of Texas at Austin.
//  Copyright 2004-2022, The Board of Regents of The University of Texas System
//
//==============================================================================
 
//==============================================================================
//
//  This software was developed by Applied Research Laboratories at the
//  University of Texas at Austin, under contract to an agency or agencies
//  within the U.S. Department of Defense. The U.S. Government retains all
//  rights to use, duplicate, distribute, disclose, or release this software.
//
//  Pursuant to DoD Directive 523024
//
//  DISTRIBUTION STATEMENT A: This software has been approved for public
//                            release, distribution is unlimited.
//
//==============================================================================
 
#ifndef GNSSTK_UNIXTIME_HPP
#define GNSSTK_UNIXTIME_HPP
 
#include "TimeTag.hpp"
 
#ifdef _MSC_VER
#ifndef _WINSOCKAPI_
#ifndef timeval
// timeval is defined in winsock.h, which we don't want to include
// because it breaks lots of this code
struct timeval {
  long    tv_sec;         /* seconds */
  long    tv_usec;        /* and microseconds */
};
#endif  // #ifndef timeval
#endif  // #ifndef _WINSOCKAPI_
#else
#include <sys/time.h>     // for struct timeval
#endif
 
namespace gnsstk
{
 
 
   class UnixTime : public TimeTag
   {
   public:
 
      UnixTime( int sec = 0,
                int usec = 0,
                TimeSystem ts = TimeSystem::Unknown )
      { tv.tv_sec = sec;  tv.tv_usec = usec;  timeSystem = ts; }
 
      UnixTime( struct timeval t,
                TimeSystem ts = TimeSystem::Unknown )
      {
         tv.tv_sec = t.tv_sec;  tv.tv_usec = t.tv_usec;  timeSystem = ts;
      }
 
      UnixTime( const UnixTime& right )
            : tv( right.tv )
      { timeSystem = right.timeSystem; }
 
      UnixTime( const TimeTag& right )
      {
         convertFromCommonTime( right.convertToCommonTime() );
      }
 
      UnixTime( const CommonTime& right )
      {
         convertFromCommonTime( right );
      }
 
      UnixTime& operator=( const UnixTime& right );
 
      virtual ~UnixTime()
      {}
 
         // The following functions are required by TimeTag.
      virtual CommonTime convertToCommonTime() const;
 
      virtual void convertFromCommonTime( const CommonTime& ct );
 
      virtual std::string printf( const std::string& fmt ) const;
 
      virtual std::string printError( const std::string& fmt ) const;
 
      virtual bool setFromInfo( const IdToValue& info );
 
      virtual std::string getPrintChars() const
      {
         return "UuP";
      }
 
      virtual std::string getDefaultFormat() const
      {
         return "%U %u %P";
      }
 
      virtual bool isValid() const;
 
      virtual void reset();
 
      virtual bool operator==( const UnixTime& right ) const;
      virtual bool operator!=( const UnixTime& right ) const;
      virtual bool operator<( const UnixTime& right ) const;
      virtual bool operator>( const UnixTime& right ) const;
      virtual bool operator<=( const UnixTime& right ) const;
      virtual bool operator>=( const UnixTime& right ) const;
 
      struct timeval tv;
   };
 
 
} // namespace
 
#endif // GNSSTK_UNIXTIME_HPP