kget/core/speedlimiter.h

   1 /* This file is part of the KDE project
   2
   3    Copyright (C) 2007 Manolo Valdes <nolis71cu@gmail.com>
   4
   5    This program is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU General Public
   7    License as published by the Free Software Foundation; either
   8    version 2 of the License, or (at your option) any later version.
   9 */
  10
  11 #ifndef SPEEDLIMITER_H
  12 #define SPEEDLIMITER_H
  13
  14 #include <kio/job.h>
  15
  16 #include <QtCore/QTime>
  17
  18 class KJobSpeedLimiter;
  19
  20 /**
  21  *  The KSpeedLimiter is designed to throtle the speed in kio jobs
  22  */
  23
  24 class KSpeedLimiter
  25 {
  26
  27 public:
  28     KSpeedLimiter(unsigned long speed);
  29     ~KSpeedLimiter();
  30
  31     void setSpeedLimit(unsigned long speed);
  32     unsigned long speedLimit();
  33
  34     void addJob(KJob *job);
  35
  36 private:
  37     unsigned long m_speedLimit;
  38     QList<KJobSpeedLimiter *> m_JobSpeedLimiters;
  39
  40 };
  41
  42 class KJobSpeedLimiter : public QObject
  43 {
  44 Q_OBJECT
  45
  46 public:
  47     KJobSpeedLimiter(KJob *job, unsigned long speedLimit);
  48     ~KJobSpeedLimiter();
  49
  50 private Q_SLOTS:
  51     void slotOnTimer();
  52     void slotOffTimer();
  53     void slotResult(KJob *job);
  54
  55 private:
  56     bool isSuspended();
  57     void suspend();
  58     void resume();
  59
  60 private:
  61     unsigned long m_speedLimit;
  62     unsigned long m_channelSpeed;
  63     KJob *m_job;
  64     qulonglong m_bytes;
  65     QTime m_time;
  66     bool m_isSuspended;
  67     int m_OnTime;
  68     int m_OffTime;
  69 };
  70
  71 #endif