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/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#ifndef _D_DEFAULT_BT_INTERACTIVE_H_
#define _D_DEFAULT_BT_INTERACTIVE_H_
#include "BtInteractive.h"
#include "Peer.h"
#include "BtContext.h"
#include "PieceStorage.h"
#include "PeerStorage.h"
#include "BtMessageReceiver.h"
#include "BtMessageDispatcher.h"
#include "BtRequestFactory.h"
#include "PeerConnection.h"
#include "BtRegistry.h"
#include "Logger.h"
#include "LogFactory.h"
#include "TimeA2.h"
class FloodingStat {
private:
int32_t chokeUnchokeCount;
int32_t keepAliveCount;
public:
FloodingStat():chokeUnchokeCount(0), keepAliveCount(0) {}
void incChokeUnchokeCount() {
if(chokeUnchokeCount < INT32_MAX) {
chokeUnchokeCount++;
}
}
void incKeepAliveCount() {
if(keepAliveCount < INT32_MAX) {
keepAliveCount++;
}
}
int32_t getChokeUnchokeCount() const {
return chokeUnchokeCount;
}
int32_t getKeepAliveCount() const {
return keepAliveCount;
}
void reset() {
chokeUnchokeCount = 0;
keepAliveCount = 0;
}
};
class DefaultBtInteractive : public BtInteractive {
private:
int32_t cuid;
PeerHandle peer;
BtContextHandle btContext;
PeerStorageHandle peerStorage;
PieceStorageHandle pieceStorage;
BtMessageReceiverWeakHandle btMessageReceiver;
BtMessageDispatcherWeakHandle dispatcher;
BtRequestFactoryWeakHandle btRequestFactory;
PeerConnectionWeakHandle peerConnection;
BtMessageFactoryWeakHandle messageFactory;
const Logger* logger;
int32_t allowedFastSetSize;
Time haveCheckPoint;
Time keepAliveCheckPoint;
Time floodingCheckPoint;
FloodingStat floodingStat;
int32_t keepAliveInterval;
int32_t maxDownloadSpeedLimit;
static const int32_t FLOODING_CHECK_INTERVAL = 5;
void addBitfieldMessageToQueue();
void addAllowedFastMessageToQueue();
void decideChoking();
void checkHave();
void sendKeepAlive();
void decideInterest();
void fillPiece(int maxPieceNum);
void addRequests();
void detectMessageFlooding();
public:
DefaultBtInteractive():peer(0),
btContext(0),
peerStorage(0),
pieceStorage(0),
btMessageReceiver(0),
dispatcher(0),
btRequestFactory(0),
peerConnection(0),
logger(LogFactory::getInstance()),
allowedFastSetSize(10),
keepAliveInterval(120),
maxDownloadSpeedLimit(0)
{}
virtual ~DefaultBtInteractive() {}
virtual void initiateHandshake();
virtual BtMessageHandle receiveHandshake(bool quickReply = false);
virtual BtMessageHandle receiveAndSendHandshake();
virtual void doPostHandshakeProcessing();
virtual void doInteractionProcessing();
virtual void cancelAllPiece();
virtual void sendPendingMessage();
void receiveMessages();
virtual int32_t countPendingMessage() {
return dispatcher->countMessageInQueue();
}
virtual bool isSendingMessageInProgress() {
return dispatcher->isSendingInProgress();
}
void setCuid(int32_t cuid) {
this->cuid = cuid;
}
void setPeer(const PeerHandle& peer) {
this->peer = peer;
}
void setBtContext(const BtContextHandle& btContext) {
this->btContext = btContext;
this->peerStorage = PEER_STORAGE(btContext);
this->pieceStorage = PIECE_STORAGE(btContext);
}
void setBtMessageReceiver(const BtMessageReceiverWeakHandle& receiver) {
this->btMessageReceiver = receiver;
}
void setDispatcher(const BtMessageDispatcherWeakHandle& dispatcher) {
this->dispatcher = dispatcher;
}
void setBtRequestFactory(const BtRequestFactoryWeakHandle& factory) {
this->btRequestFactory = factory;
}
void setPeerConnection(const PeerConnectionWeakHandle& peerConnection) {
this->peerConnection = peerConnection;
}
void setKeepAliveInterval(int32_t keepAliveInterval) {
this->keepAliveInterval = keepAliveInterval;
}
void setMaxDownloadSpeedLimit(int32_t maxDownloadSpeedLimit) {
this->maxDownloadSpeedLimit = maxDownloadSpeedLimit;
}
void setBtMessageFactory(const BtMessageFactoryWeakHandle& factory) {
this->messageFactory = factory;
}
};
typedef SharedHandle<DefaultBtInteractive> DefaultBtInteractiveHandle;
#endif // _D_DEFAULT_BT_INTERACTIVE_H_
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