aria2/src/DHTGetPeersCommand.h

/* <!-- 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_DHT_GET_PEERS_COMMAND_H
#define D_DHT_GET_PEERS_COMMAND_H

#include "Command.h"
#include "SharedHandle.h"
#include "TimerA2.h"

namespace aria2 {

class RequestGroup;
class DHTTaskQueue;
class DHTTaskFactory;
class DHTTask;
class DownloadEngine;
class RequestGroup;
class BtRuntime;
class PeerStorage;

class DHTGetPeersCommand:public Command {
private:
  static const time_t GET_PEER_INTERVAL = (15*60);

  static const time_t GET_PEER_MIN_INTERVAL = (5*60);

  static const size_t MAX_RETRIES = 10;

  RequestGroup* requestGroup_;

  SharedHandle<BtRuntime> btRuntime_;

  SharedHandle<PeerStorage> peerStorage_;

  DownloadEngine* e_;

  SharedHandle<DHTTaskQueue> taskQueue_;

  SharedHandle<DHTTaskFactory> taskFactory_;

  SharedHandle<DHTTask> task_;

  size_t numRetry_;

  Timer lastGetPeerTime_;
public:
  DHTGetPeersCommand(cuid_t cuid, RequestGroup* requestGroup,
                     DownloadEngine* e);

  virtual ~DHTGetPeersCommand();

  virtual bool execute();

  void setTaskQueue(const SharedHandle<DHTTaskQueue>& taskQueue);

  void setTaskFactory(const SharedHandle<DHTTaskFactory>& taskFactory);

  void setBtRuntime(const SharedHandle<BtRuntime>& btRuntime);

  void setPeerStorage(const SharedHandle<PeerStorage>& peerStorage);
};

} // namespace aria2

#endif // D_DHT_GET_PEERS_COMMAND_H