/* <!-- 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_MESSAGE_TRACKER_H_
#define _D_DHT_MESSAGE_TRACKER_H_

#include "common.h"
#include "DHTMessageTrackerDecl.h"
#include "DHTMessageDecl.h"
#include "DHTMessageCallbackDecl.h"
#include "DHTMessageTrackerEntryDecl.h"
#include "DHTRoutingTableDecl.h"
#include "DHTMessageFactoryDecl.h"

class Logger;
class Dictionary;

class DHTMessageTracker {
private:
  DHTMessageTrackerEntries _entries;
  
  DHTRoutingTableHandle _routingTable;

  DHTMessageFactoryHandle _factory;

  const Logger* _logger;
public:
  DHTMessageTracker();

  ~DHTMessageTracker();

  void addMessage(const DHTMessageHandle& message, time_t timeout, const DHTMessageCallbackHandle& callback = 0);

  void addMessage(const DHTMessageHandle& message, const DHTMessageCallbackHandle& callback = 0);

  pair<DHTMessageHandle, DHTMessageCallbackHandle>
  messageArrived(const Dictionary* d, const string& ipaddr, uint16_t port);

  void handleTimeout();

  DHTMessageTrackerEntryHandle getEntryFor(const DHTMessageHandle& message) const;

  size_t countEntry() const;

  void setRoutingTable(const DHTRoutingTableHandle& routingTable);

  void setMessageFactory(const DHTMessageFactoryHandle& factory);
};

#endif // _D_DHT_MESSAGE_TRACKER_H_