mirror of https://github.com/aria2/aria2
83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
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/* <!-- copyright */
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/*
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* aria2 - a simple utility for downloading files faster
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*
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* Copyright (C) 2006 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* copyright --> */
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#ifndef _D_PEER_CONNECTION_H_
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#define _D_PEER_CONNECTION_H_
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#include "Option.h"
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#include "Socket.h"
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#include "Logger.h"
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#include "TorrentMan.h"
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#include "PeerMessage.h"
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#include "HandshakeMessage.h"
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// we assume maximum length of incoming message is "piece" message with 16KB
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// data. Messages beyond that size are dropped.
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#define MAX_PAYLOAD_LEN (9+16*1024)
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class PeerConnection {
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private:
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int cuid;
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const Socket* socket;
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const Option* option;
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const Logger* logger;
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Peer* peer;
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TorrentMan* torrentMan;
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char resbuf[MAX_PAYLOAD_LEN];
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int resbufLength;
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int currentPayloadLength;
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char lenbuf[4];
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int lenbufLength;
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void createNLengthMessage(char* msg, int msgLen, int payloadLen, int id) const;
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void setIntParam(char* dest, int param) const;
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void writeOutgoingMessageLog(const char* msg) const;
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void writeOutgoingMessageLog(const char* msg, int index) const;
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void writeOutgoingMessageLog(const char* msg, const unsigned char* bitfield, int bitfieldLength) const;
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void writeOutgoingMessageLog(const char* msg, int index, int begin, int length) const;
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public:
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PeerConnection(int cuid, const Socket* socket, const Option* op,
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const Logger* logger, Peer* peer, TorrentMan* torrenMan);
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~PeerConnection();
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void sendHandshake() const;
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void sendKeepAlive() const;
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void sendChoke() const;
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void sendUnchoke() const;
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void sendInterested() const;
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void sendNotInterested() const;
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void sendHave(int index) const;
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void sendBitfield() const;
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void sendRequest(int index, int begin, int length) const;
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void sendPiece(int index, int begin, int length) const;
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void sendPieceHeader(int index, int begin, int length) const;
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int sendPieceData(long long int offset, int length) const;
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void sendCancel(int index, int begin, int length) const;
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PeerMessage* receiveMessage();
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HandshakeMessage* receiveHandshake();
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Peer* getPeer() const { return peer; }
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};
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#endif // _D_PEER_CONNECTION_H_
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