summaryrefslogtreecommitdiffstats
path: root/examples/network/torrent/ratecontroller.h
blob: 23e42d0c59e8d0050d57e010f7339a77ecedbc38 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/

#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