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// libTorrent - BitTorrent library
// Copyright (C) 2005-2007, 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
// 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.
//
// Contact: Jari Sundell <jaris@ifi.uio.no>
//
// Skomakerveien 33
// 3185 Skoppum, NORWAY
#ifndef LIBTORRENT_DOWNLOAD_RESOURCE_MANAGER_H
#define LIBTORRENT_DOWNLOAD_RESOURCE_MANAGER_H
#include <vector>
#include <inttypes.h>
namespace torrent {
// This class will handle the division of various resources like
// uploads. For now the weight is equal to the value of the priority.
//
// Add unlimited handling later.
class DownloadMain;
class ResourceManager : public std::vector<std::pair<uint16_t, DownloadMain*> > {
public:
typedef std::vector<std::pair<uint16_t, DownloadMain*> > base_type;
typedef base_type::value_type value_type;
using base_type::begin;
using base_type::end;
ResourceManager() :
m_currentlyUploadUnchoked(0),
m_currentlyDownloadUnchoked(0),
m_maxUploadUnchoked(0),
m_maxDownloadUnchoked(0) {}
~ResourceManager();
void insert(DownloadMain* d, uint16_t priority);
void erase(DownloadMain* d);
iterator find(DownloadMain* d);
void set_priority(iterator itr, uint16_t pri);
// When setting this, make sure you choke peers, else change
// receive_can_unchoke.
unsigned int currently_upload_unchoked() const { return m_currentlyUploadUnchoked; }
unsigned int currently_download_unchoked() const { return m_currentlyDownloadUnchoked; }
unsigned int max_upload_unchoked() const { return m_maxUploadUnchoked; }
unsigned int max_download_unchoked() const { return m_maxDownloadUnchoked; }
void set_max_upload_unchoked(unsigned int m) { m_maxUploadUnchoked = m; }
void set_max_download_unchoked(unsigned int m) { m_maxDownloadUnchoked = m; }
void receive_upload_unchoke(int num);
void receive_download_unchoke(int num);
unsigned int retrieve_upload_can_unchoke();
unsigned int retrieve_download_can_unchoke();
void receive_tick();
private:
unsigned int total_weight() const;
void balance_upload_unchoked(unsigned int weight);
void balance_download_unchoked(unsigned int weight);
unsigned int m_currentlyUploadUnchoked;
unsigned int m_currentlyDownloadUnchoked;
unsigned int m_maxUploadUnchoked;
unsigned int m_maxDownloadUnchoked;
};
}
#endif
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