/*
**  ClanLib SDK
**  Copyright (c) 1997-2005 The ClanLib Team
**
**  This software is provided 'as-is', without any express or implied
**  warranty.  In no event will the authors be held liable for any damages
**  arising from the use of this software.
**
**  Permission is granted to anyone to use this software for any purpose,
**  including commercial applications, and to alter it and redistribute it
**  freely, subject to the following restrictions:
**
**  1. The origin of this software must not be misrepresented; you must not
**     claim that you wrote the original software. If you use this software
**     in a product, an acknowledgment in the product documentation would be
**     appreciated but is not required.
**  2. Altered source versions must be plainly marked as such, and must not be
**     misrepresented as being the original software.
**  3. This notice may not be removed or altered from any source distribution.
**
**  Note: Some of the libraries ClanLib may link to may have additional
**  requirements or restrictions.
**
**  File Author(s):
**
**    Magnus Norddahl
**    (if your name is missing here, please add it)
*/

//! clanNetwork="NetSessions"
//! header=network.h

#ifndef header_inputsource_netstream
#define header_inputsource_netstream

#ifdef CL_API_DLL
#ifdef CL_NETWORK_EXPORT
#define CL_API_NETWORK __declspec(dllexport)
#else
#define CL_API_NETWORK __declspec(dllimport)
#endif
#else
#define CL_API_NETWORK
#endif

#if _MSC_VER > 1000
#pragma once
#endif

#include "../../Core/IOData/inputsource.h"

class CL_NetStream;
class CL_NetStream_Generic;

//: InputSource NetStream Class
//- !group=Network/NetSessions!
//- !header=network.h!
class CL_API_NETWORK CL_InputSource_NetStream : public CL_InputSource
{
//! Construction:
public:
	//: InputSource Netstream Constructor
	CL_InputSource_NetStream(const CL_NetStream &netstream);

	virtual ~CL_InputSource_NetStream();

//! Attributes:
public:
	//: Returns current position in input source.
	//return: Current position in input source.
	virtual int tell() const;

	//: Returns the size of the input source
	//return: Size of the input source.
	virtual int size() const;

//! Operations:
public:
	//: Reads larger amounts of data (no endian and 64 bit conversion).
	//param data: Points to an array where the read data is stored.
	//param size: Number of bytes to read.
	//return: Num bytes actually read.
	virtual int read(void *data, int size);
	
	//: Opens the input source. By default, it is open.
	virtual void open();
	
	//: Closes the input source.
	virtual void close();

	//: Make a copy of the current inputsource, standing at the same position.
	//return: The copy of the input source.
	virtual CL_InputSource *clone() const;

	//: Seeks to the specified position in the input source.
	//param pos: Position relative to 'seek_type'.
	//param seek_type: Defines what the 'pos' is relative to. Can be either seek_set, seek_cur og seek_end.
	virtual void seek(int pos, SeekEnum seek_type);

	//: Pushes the current input source position. The position can be restored again with pop_position.
	virtual void push_position();
	
	//: Pops a previous pushed input source position (returns to the position).
	virtual void pop_position();

//! Implementation:
private:
	friend class CL_NetStream;

	// Constructor used to initialize internal CL_NetStream member variable.
	CL_InputSource_NetStream() { netstream = 0; ref_count_netstream = false; }

	CL_NetStream_Generic *netstream;
	bool ref_count_netstream;
};

#endif