source: trunk/nv/io/std_stream.hh @ 319

// Copyright (C) 2012-2014 ChaosForge Ltd
// http://chaosforge.org/
//
// This file is part of NV Libraries.
// For conditions of distribution and use, see copyright notice in nv.hh
/**
 * @file std_stream.hh
 * @author Kornel Kisielewicz epyon@chaosforge.org
 * @brief stream adapter for usage with STL
 */

#ifndef NV_STD_STREAM_HH
#define NV_STD_STREAM_HH

#include <nv/core/common.hh>
#include <nv/interface/stream.hh>
#include <streambuf>
#include <istream>
#include <vector>

namespace nv
{

        class std_streambuf : public std::streambuf
        {
        public:
                explicit std_streambuf( stream* source, bool owner = false, std::size_t bsize = 256, std::size_t put_back = 8 );
                virtual ~std_streambuf();
        protected:
                stream*           m_stream;
                bool              m_owner;
                std::vector<char> m_buffer;
                std::size_t       m_put_back;
        private:
                std_streambuf( const std_streambuf& );             // dissalow copy
                std_streambuf *operator =( const std_streambuf& ); // dissalow assign
                int_type underflow();
        };

        class std_stream : public std::istream
        {
        public:
                explicit std_stream( stream* source, bool owner = false, std::size_t bsize = 256, std::size_t put_back = 8 )
                        : std::istream( &m_streambuf )
                        , m_streambuf( source, owner, bsize, put_back ) 
                {}
        private:
                std_streambuf m_streambuf;
        };

} // namespace nv

#endif // NV_STD_STREAM_HH