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/* vim:set ts=3 sw=3 sts=3 et: */


#include <boost/cstdint.hpp> // uint64_t
#include <boost/noncopyable.hpp>

#ifndef MOOST_KVDS_IKVDS_HPP__
#define MOOST_KVDS_IKVDS_HPP__

namespace moost { namespace kvds {


   struct IKvds : boost::noncopyable
   {

      virtual bool put(
         void const * pkey, size_t const ksize,
         void const * pval, size_t const vsize
         ) = 0;

      virtual bool get(
         void const * pkey, size_t const ksize,
         void * pval, size_t & vsize
         ) = 0;

      virtual bool add(
         void const * pkey, size_t const ksize,
         void const * pval, size_t const vsize
         ) = 0;

      virtual bool all(
         void const * pkey, size_t const ksize,
         void * pval, size_t & vsize
         ) = 0;

      virtual bool xst(
         void const * pkey, size_t const ksize
         ) = 0;

      virtual bool del(
         void const * pkey, size_t const ksize
         ) = 0;

      virtual bool clr() = 0;

      virtual bool beg() = 0;

      virtual bool nxt(
         void * pkey, size_t & ksize
         ) = 0;

      virtual bool end() = 0;

      virtual bool siz(
         void const * pkey, size_t const ksize,
         size_t & vsize
         ) = 0;

      virtual bool cnt(boost::uint64_t & cnt) = 0;

      virtual bool nil(bool & isnil) = 0;

      virtual ~ IKvds() {} 
   };

}}

#endif /// MOOST_KVDS_IKVDS_HPP__