source: trunk/nv/io/c_stream.hh

// Copyright (C) 2012-2015 ChaosForge Ltd
// http://chaosforge.org/
//
// This file is part of Nova libraries. 
// For conditions of distribution and use, see copying.txt file in root folder.

/**
 * @file c_stream.hh
 * @author Kornel Kisielewicz epyon@chaosforge.org
 * @brief stream implementation via c f* functions
 */

#ifndef NV_IO_C_STREAM_HH
#define NV_IO_C_STREAM_HH

#include <nv/common.hh>
#include <nv/stl/stream.hh>
#include <nv/stl/string.hh>

namespace nv
{
        class c_file_system;

        class c_stream : public stream
        {
                friend class c_file_system;
        protected:
                c_stream();
                // TODO: const char* is prone to deletion - don't store it, or store differently!
                c_stream( void* pfile, const char* filename );
        public:
                virtual ~c_stream();
                virtual size_t read( void* buffer, size_t size, size_t count );
                virtual size_t write( const void* buffer, size_t size, size_t count );
                virtual bool gets( char* buffer, size_t max_count );
                virtual bool seek( long offset, origin orig );
                virtual bool eof();
                virtual size_t tell();
                virtual size_t size();
                virtual void flush();
        private:
                void*        m_file;      //!< FILE* structure, masked
                const_string m_file_name; //!< File name
                size_t       m_file_size; //!< Cached file size
        };

} // namespace nv

#endif // NV_IO_C_STREAM_HH