DataFrameManager.h

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#ifndef SZA_UTIL_DATAFRAMEMANAGER_H
#define SZA_UTIL_DATAFRAMEMANAGER_H

#include "carma/szautil/DataFrame.h"
#include "carma/szautil/DataType.h"
#include "carma/szautil/Exception.h"
#include "carma/szautil/Mutex.h"

namespace sza {
  namespace util {
    
    class DataFrameManager {
      
    public:
      
      DataFrameManager();
      DataFrameManager(unsigned nBuffer);
      DataFrameManager(DataFrameManager& fm);
      DataFrameManager(DataFrame* frame);
      
      virtual ~DataFrameManager();
      
      void resize(unsigned int nBuffer);

      void pack(unsigned int* data, unsigned int ndata, 
                int startIndex=-1);

      void pack(unsigned long* data, unsigned int ndata, 
                int startIndex=-1);

      void pack(float* data, unsigned int ndata, 
                int startIndex=-1);

      void pack(DataFrame* frame, int startIndex);

      void fillBuffer(unsigned char val, unsigned int ndata);
      
      void fillBuffer(unsigned char val);

      void setErrorStatus(bool wasError);
      
      DataFrame* frame();
      
      void unpack(unsigned char* data, unsigned int ndata);

      void unpack(unsigned char* data);

      void advance(unsigned ndata);
      
      virtual void reinitialize();
      
      void lock();

      void unlock();

      virtual unsigned int getId() {
        return 0;
      };

      unsigned byteOffsetInFrameOfData();

      unsigned sizeInBytes();

      unsigned sizeInBytesOfData();
      
      virtual void operator=(DataFrameManager& fm);

    public:

      sza::util::DataFrame* frame_;// The data frame managed by this object

      bool dataIsInitialized_;     // False until the DataFrame buffer
                                   // has been allocated
      unsigned currentIndex_;      // Current index into the
                                   // DataFrame buffer
      unsigned nBuffer_;           // The number of bytes in the buffer
      unsigned nUsed_;             // The number of bytes used

    private:

      void pack(void* data, unsigned int ndata, DataType::Type type,
                int startIndex=-1);

      void initialize();

    }; // End class DataFrameManager
    
  }; // End namespace util
}; // End namespace sza

#endif // End #ifndef