#ifndef DABC_BinaryFile
#define DABC_BinaryFile

#ifndef DABC_DataIO
#include "dabc/DataIO.h"
#endif

#include <stdint.h>

namespace dabc {
    
   class FileIO; 

#pragma pack(1)
 
   typedef struct BinaryFileHeader {
      uint64_t magic; 
      uint64_t version; 
      uint64_t numbufs;
   };
   
   typedef struct BinaryFileBufHeader {
      uint64_t datalength;  
      uint64_t headerlength;
      uint64_t buftype;  
   };

#pragma pack(0)

   class BinaryFileInput : public DataInput {
      public:
         BinaryFileInput(FileIO* io);
         virtual ~BinaryFileInput();
         
         virtual unsigned Read_Size();
         virtual unsigned Read_Complete(Buffer* buf);

      protected:   
         void CloseIO();
      
         FileIO*    fIO;
         int64_t    fVersion;     // file format version
         bool       fReadBufHeader; // indicate if we start reading of the buffer header
         BinaryFileBufHeader fBufHeader;
  };

   // _________________________________________________________________
   
   class BinaryFileOutput : public DataOutput {
      public:
         BinaryFileOutput(FileIO* io);
         virtual ~BinaryFileOutput();
         
         virtual bool WriteBuffer(Buffer* buf);
      protected:
         void CloseIO();

         FileIO*    fIO;
         int64_t    fSyncCounter; // byte counter to perform regulary fsync operation
   };
    
}

#endif