throttle_manager.h

LibTorrent is a BitTorrent library written in C++ for *nix, with a focus on high performance and goo

// libTorrent - BitTorrent library
// Copyright (C) 2005-2006, Jari Sundell
//
// 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
//
// 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
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// If you delete this exception statement from all source files in the
// program, then also delete it here.
//
// Contact:  Jari Sundell <[e-mail]>
//
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//           3185 Skoppum, NORWAY

#ifndef LIBTORRENT_NET_THROTTLE_MANAGER_H
#define LIBTORRENT_NET_THROTTLE_MANAGER_H

#include <rak/timer.h>

#include "globals.h"

namespace torrent {

class ThrottleList;

class ThrottleManager {
public:

  ThrottleManager();
  ~ThrottleManager();

  uint32_t            max_rate() const         { return m_maxRate; }
  void                set_max_rate(uint32_t v);

  ThrottleList*       throttle_list()          { return m_throttleList; }

private:
  void                receive_tick();

  uint32_t            calculate_min_chunk_size() const;
  uint32_t            calculate_max_chunk_size() const;
  uint32_t            calculate_interval() const;

  uint32_t            m_maxRate;

  ThrottleList*       m_throttleList;

  rak::timer          m_timeLastTick;
  rak::priority_item  m_taskTick;
};

}

#endif