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// ** Copyright UCAR (c) 1990 - 2016                                         
// ** University Corporation for Atmospheric Research (UCAR)                 
// ** National Center for Atmospheric Research (NCAR)                        
// ** Boulder, Colorado, USA                                                 
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// ** forms, with or without modification, are permitted provided that       
// ** the following conditions are met:                                      
// ** 1) If the software is modified to produce derivative works,            
// ** such modified software should be clearly marked, so as not             
// ** to confuse it with the version available from UCAR.                    
// ** 2) Redistributions of source code must retain the above copyright      
// ** notice, this list of conditions and the following disclaimer.          
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// ** notice, this list of conditions and the following disclaimer in the    
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// ** if any, may be used to endorse or promote products derived from        
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#include <Mdv/mdv/MdvChunk.hh>
#include <toolsa/str.h>
using namespace std;

MdvChunk::MdvChunk( void *chunkData, size_t size, int id, const char *descrip )
{
   MDV_init_chunk_header( &info );
   setDescription( descrip );

   data          = chunkData;
   info.size     = (si32)size;
   info.chunk_id = (si32)id;
}

MdvChunk::MdvChunk()
{
   clear();
}

MdvChunk::MdvChunk( const MdvChunk &source )
{
   copy( source );
}

MdvChunk& 
MdvChunk::operator= ( const MdvChunk &source )
{
   copy( source );
   return *this;
}

void
MdvChunk::clear()
{
   MDV_init_chunk_header( &info );

   data          = NULL;
   info.size     = 0;
   info.chunk_id = -1;
}

void 
MdvChunk::copy( const MdvChunk &source )
{
   MDV_init_chunk_header( &info );

   //
   // NOTE: unused_ fields are not copied!
   //
   data          = source.data;
   info.chunk_id = source.info.chunk_id;
   info.size     = source.info.size;

   STRncopy( info.info, source.info.info, MDV_CHUNK_INFO_LEN );
}