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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 "BtContextAwareCommand.h"
#include "TimeA2.h"
#include <limits.h>
namespace aria2 {
class Peer;
class BtMessage;
class BtMessageReceiver;
class BtMessageDispatcher;
class BtMessageFactory;
class BtRequestFactory;
class PeerConnection;
class DHTNode;
class Logger;
class FloodingStat {
private:
unsigned int chokeUnchokeCount;
unsigned int keepAliveCount;
public:
FloodingStat():chokeUnchokeCount(0), keepAliveCount(0) {}
void incChokeUnchokeCount() {
if(chokeUnchokeCount < UINT_MAX) {
chokeUnchokeCount++;
}
}
void incKeepAliveCount() {
if(keepAliveCount < UINT_MAX) {
keepAliveCount++;
}
}
unsigned int getChokeUnchokeCount() const {
return chokeUnchokeCount;
}
unsigned int getKeepAliveCount() const {
return keepAliveCount;
}
void reset() {
chokeUnchokeCount = 0;
keepAliveCount = 0;
}
};
class DefaultBtInteractive : public BtInteractive, public BtContextAwareCommand {
private:
int32_t cuid;
SharedHandle<Peer> peer;
WeakHandle<BtMessageReceiver> btMessageReceiver;
WeakHandle<BtMessageDispatcher> dispatcher;
WeakHandle<BtRequestFactory> btRequestFactory;
WeakHandle<PeerConnection> peerConnection;
WeakHandle<BtMessageFactory> messageFactory;
WeakHandle<DHTNode> _localNode;
Logger* logger;
size_t allowedFastSetSize;
Time haveCheckPoint;
Time keepAliveCheckPoint;
Time floodingCheckPoint;
FloodingStat floodingStat;
Time inactiveCheckPoint;
Time _pexCheckPoint;
time_t keepAliveInterval;
unsigned int maxDownloadSpeedLimit;
bool _utPexEnabled;
bool _dhtEnabled;
size_t _numReceivedMessage;
static const time_t FLOODING_CHECK_INTERVAL = 5;
void addBitfieldMessageToQueue();
void addAllowedFastMessageToQueue();
void addHandshakeExtendedMessageToQueue();
void decideChoking();
void checkHave();
void sendKeepAlive();
void decideInterest();
void fillPiece(size_t maxMissingBlock);
void addRequests();
void detectMessageFlooding();
void checkActiveInteraction();
void addPeerExchangeMessage();
void addPortMessageToQueue();
public:
DefaultBtInteractive(const SharedHandle<BtContext>& btContext,
const SharedHandle<Peer>& peer);
virtual ~DefaultBtInteractive();
virtual void initiateHandshake();
virtual SharedHandle<BtMessage> receiveHandshake(bool quickReply = false);
virtual SharedHandle<BtMessage> receiveAndSendHandshake();
virtual void doPostHandshakeProcessing();
virtual void doInteractionProcessing();
virtual void cancelAllPiece();
virtual void sendPendingMessage();
size_t receiveMessages();
virtual size_t countPendingMessage();
virtual bool isSendingMessageInProgress();
virtual size_t countReceivedMessageInIteration() const;
virtual size_t countOutstandingRequest();
void setCuid(int32_t cuid) {
this->cuid = cuid;
}
void setPeer(const SharedHandle<Peer>& peer);
void setBtMessageReceiver(const WeakHandle<BtMessageReceiver>& receiver);
void setDispatcher(const WeakHandle<BtMessageDispatcher>& dispatcher);
void setBtRequestFactory(const WeakHandle<BtRequestFactory>& factory);
void setPeerConnection(const WeakHandle<PeerConnection>& peerConnection);
void setBtMessageFactory(const WeakHandle<BtMessageFactory>& factory);
void setKeepAliveInterval(time_t keepAliveInterval) {
this->keepAliveInterval = keepAliveInterval;
}
void setMaxDownloadSpeedLimit(unsigned int maxDownloadSpeedLimit) {
this->maxDownloadSpeedLimit = maxDownloadSpeedLimit;
}
void setUTPexEnabled(bool f)
{
_utPexEnabled = f;
}
void setLocalNode(const WeakHandle<DHTNode>& node);
void setDHTEnabled(bool f)
{
_dhtEnabled = f;
}
};
typedef SharedHandle<DefaultBtInteractive> DefaultBtInteractiveHandle;
} // namespace aria2
#endif // _D_DEFAULT_BT_INTERACTIVE_H_
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