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/*
* Copyright (C) 2001-2008 Jacek Sieka, arnetheduck on gmail point 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef DCPLUSPLUS_DCPP_DOWNLOAD_MANAGER_H
#define DCPLUSPLUS_DCPP_DOWNLOAD_MANAGER_H
#include "forward.h"
#include "DownloadManagerListener.h"
#include "UserConnectionListener.h"
#include "QueueItem.h"
#include "TimerManager.h"
#include "Singleton.h"
#include "MerkleTree.h"
#include "Speaker.h"
#include "File.h"
namespace dcpp {
/**
* Singleton. Use its listener interface to update the download list
* in the user interface.
*/
class DownloadManager : public Speaker<DownloadManagerListener>,
private UserConnectionListener, private TimerManagerListener,
public Singleton<DownloadManager>
{
public:
/** @internal */
void addConnection(UserConnectionPtr conn);
void checkIdle(const UserPtr& user);
/** @return Running average download speed in Bytes/s */
int64_t getRunningAverage();
/** @return Number of downloads. */
size_t getDownloadCount() {
Lock l(cs);
return downloads.size();
}
bool startDownload(QueueItem::Priority prio);
private:
CriticalSection cs;
DownloadList downloads;
UserConnectionList idlers;
void removeConnection(UserConnectionPtr aConn);
void removeDownload(Download* aDown);
void fileNotAvailable(UserConnection* aSource);
void noSlots(UserConnection* aSource);
void logDownload(UserConnection* aSource, Download* d);
uint32_t calcCrc32(const string& file) throw(FileException);
bool checkSfv(UserConnection* aSource, Download* d);
int64_t getResumePos(const string& file, const TigerTree& tt, int64_t startPos);
void failDownload(UserConnection* aSource, const string& reason);
friend class Singleton<DownloadManager>;
DownloadManager();
virtual ~DownloadManager() throw();
void checkDownloads(UserConnection* aConn);
void startData(UserConnection* aSource, int64_t start, int64_t newSize, bool z);
void endData(UserConnection* aSource);
// UserConnectionListener
virtual void on(Data, UserConnection*, const uint8_t*, size_t) throw();
virtual void on(Failed, UserConnection*, const string&) throw();
virtual void on(MaxedOut, UserConnection*) throw();
virtual void on(FileNotAvailable, UserConnection*) throw();
virtual void on(Updated, UserConnection*) throw();
virtual void on(AdcCommand::SND, UserConnection*, const AdcCommand&) throw();
virtual void on(AdcCommand::STA, UserConnection*, const AdcCommand&) throw();
// TimerManagerListener
virtual void on(TimerManagerListener::Second, uint32_t aTick) throw();
};
} // namespace dcpp
#endif // !defined(DOWNLOAD_MANAGER_H)
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