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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_DOWNLOAD_ENGINE_H_
#define _D_DOWNLOAD_ENGINE_H_
#include "Command.h"
#include "Socket.h"
#include "SegmentMan.h"
#include "common.h"
#include "Logger.h"
#include "Option.h"
typedef deque<Socket*> Sockets;
typedef deque<Command*> Commands;
typedef multimap<Socket*, Command*> SockCmdMap;
class DownloadEngine {
private:
void waitData(Sockets& activeSockets);
Sockets rsockets;
Sockets wsockets;
SockCmdMap sockCmdMap;
void shortSleep() const;
bool addSocket(Sockets& sockets, Socket* socket, Command* command);
bool deleteSocket(Sockets& sockets, Socket* socket);
protected:
const Logger* logger;
virtual void initStatistics() = 0;
virtual void calculateStatistics() = 0;
virtual void onEndOfRun() = 0;
virtual void afterEachIteration() {}
public:
bool noWait;
Commands commands;
SegmentMan* segmentMan;
const Option* option;
DownloadEngine();
virtual ~DownloadEngine();
void run();
void cleanQueue();
bool addSocketForReadCheck(Socket* socket, Command* command);
bool deleteSocketForReadCheck(Socket* socket);
bool addSocketForWriteCheck(Socket* socket, Command* command);
bool deleteSocketForWriteCheck(Socket* socket);
};
#endif // _D_DOWNLOAD_ENGINE_H_
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