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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef RATECONTROLLER_H
#define RATECONTROLLER_H
#include <QObject>
#include <QSet>
#include <QTime>
class PeerWireClient;
class RateController : public QObject
{
Q_OBJECT
public:
inline RateController(QObject *parent = 0)
: QObject(parent), transferScheduled(false) { }
static RateController *instance();
void addSocket(PeerWireClient *socket);
void removeSocket(PeerWireClient *socket);
inline int uploadLimit() const { return upLimit; }
inline int downloadLimit() const { return downLimit; }
inline void setUploadLimit(int bytesPerSecond) { upLimit = bytesPerSecond; }
void setDownloadLimit(int bytesPerSecond);
public slots:
void transfer();
void scheduleTransfer();
private:
QTime stopWatch;
QSet<PeerWireClient *> sockets;
int upLimit;
int downLimit;
bool transferScheduled;
};
#endif
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