bbb_cape/src/bbb/byte_reader.h

#ifndef BBB_BYTE_READER_H_
#define BBB_BYTE_READER_H_

#include <sys/types.h>

namespace bbb {

class ByteReader {
 public:
  // We have 64-bit ints in some of our data.
  typedef char __attribute__((aligned(8))) AlignedChar;

  // Implemented by subclasses to provide a data source 
  // for these algorithms.
  // Returns the number of bytes read or -1 if there is an error in errno.
  virtual ssize_t ReadBytes(AlignedChar *dest, size_t max_bytes) = 0;
};

}  // namespace bbb

#endif  // BBB_BYTE_READER_H_