// 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