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/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#ifndef _D_PEER_INTERACTION_COMMAND_H_
#define _D_PEER_INTERACTION_COMMAND_H_
#include "PeerAbstractCommand.h"
#include "PeerConnection.h"
#include "PendingMessage.h"
#include "RequestSlotMan.h"
using namespace std;
class PeerInteractionCommand : public PeerAbstractCommand {
private:
int sequence;
PeerConnection* peerConnection;
RequestSlotMan* requestSlotMan;
PendingMessages pendingMessages;
Piece piece;
struct timeval keepAliveCheckPoint;
void receiveMessage();
void syncPiece();
void detectTimeoutAndDuplicateBlock();
void decideChoking();
void sendInterest();
void sendMessages();
void createRequestPendingMessage(int blockIndex);
void deletePendingMessage(PeerMessage* cancelMessage);
const RequestSlot& getRequestSlot(int index, int begin, int length) const;
bool deleteRequestSlot(const RequestSlot& slot);
void deleteAllRequestSlot();
bool checkPieceHash(const Piece& piece);
void erasePieceOnDisk(const Piece& piece);
void keepAlive();
Piece getNewPieceAndSendInterest();
void onGotNewPiece();
void onGotWrongPiece();
protected:
bool executeInternal();
bool prepareForRetry(int wait);
bool prepareForNextPeer(int wait);
void onAbort(Exception* ex);
void beforeSocketCheck();
public:
PeerInteractionCommand(int cuid, Peer* peer, TorrentDownloadEngine* e, Socket* s, int sequence);
~PeerInteractionCommand();
enum Seq {
INITIATOR_SEND_HANDSHAKE,
INITIATOR_WAIT_HANDSHAKE,
RECEIVER_SEND_HANDSHAKE,
RECEIVER_WAIT_HANDSHAKE,
WIRED};
};
#endif // _D_PEER_INTERACTION_COMMAND_H_
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