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/***************************************************************************
* Copyright (C) 2005 by Joris Guisson *
* joris.guisson@gmail.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef BTPACKET_H
#define BTPACKET_H
#include "globals.h"
class QString;
namespace bt
{
class BitSet;
class Request;
class Chunk;
class Peer;
/**
* @author Joris Guisson
*
* Packet off data, which gets sent to a Peer
*/
class Packet
{
Uint8* data;
Uint32 size;
Uint32 written;
public:
Packet(Uint8 type);
Packet(Uint16 port);
Packet(Uint32 chunk,Uint8 type);
Packet(const BitSet & bs);
Packet(const Request & req,Uint8 type);
Packet(Uint32 index,Uint32 begin,Uint32 len,Chunk* ch);
Packet(Uint8 ext_id,const QByteArray & ext_data); // extension protocol packet
virtual ~Packet();
Uint8 getType() const {return data ? data[4] : 0;}
bool isOK() const;
const Uint8* getData() const {return data;}
Uint32 getDataLength() const {return size;}
Uint32 isSent() const {return written == size;}
/**
* If this packet is a piece, make a reject for it.
* @return The newly created Packet, 0 if this is not a piece
*/
Packet* makeRejectOfPiece();
/// Are we sending this packet ?
bool sending() const {return written > 0;}
/**
* Is this a piece packet which matches a request
* @param req The request
* @return If this is a piece in response of this request
*/
bool isPiece(const Request & req) const;
/**
* Put the packet in an output buffer.
* @param buf The buffer
* @param max_to_put Maximum bytes to put
* @param piece Set to true if this is a piece
* @return The number of bytes put in the buffer
*/
Uint32 putInOutputBuffer(Uint8* buf,Uint32 max_to_put,bool & piece);
};
}
#endif
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