add 3 classes
diff --git a/model/sync-ccnx-wrapper.h b/model/sync-ccnx-wrapper.h
index fb552a2..91f819e 100644
--- a/model/sync-ccnx-wrapper.h
+++ b/model/sync-ccnx-wrapper.h
@@ -34,28 +34,13 @@
#include <boost/thread.hpp>
#include <boost/shared_ptr.hpp>
#include <string>
+#include "sync-data-buffer.h"
/**
* \defgroup sync SYNC protocol
*
* Implementation of SYNC protocol
*/
namespace Sync {
-/**
- * \ingroup sync
- * @brief Data wrapper with size
- */
- class DataBuffer {
-private:
- unsigned char *m_buffer;
- size_t m_len;
-public:
- DataBuffer(const unsigned char *buffer, size_t len);
- DataBuffer(const DataBuffer &dataBuffer);
- DataBuffer &operator=(const DataBuffer &dataBuffer);
- ~DataBuffer();
- size_t length() {return len;}
- const unsigned char *buffer() { return const_cast<const unsigned char *> (buffer); }
-};
/**
* \ingroup sync