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Ishan Arora 2007-11-18 19:40:49 +00:00
parent 58c78fa6f6
commit 9e62780a6d
4 changed files with 295 additions and 0 deletions
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/*
* Bittorrent Client using Qt4 and libtorrent.
* Copyright (C) 2006 Christophe Dumez, Arnaud Demaiziere
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contact : chris@qbittorrent.org, arnaud@qbittorrent.org
*/
#include "qrealarray.h"
int id = qRegisterMetaType<QRealArray>();

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/*
* Bittorrent Client using Qt4 and libtorrent.
* Copyright (C) 2006 Christophe Dumez, Arnaud Demaiziere
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contact : chris@qbittorrent.org, arnaud@qbittorrent.org
*/
#ifndef QREALARRAY_H
#define QREALARRAY_H
#include <QVarLengthArray>
#include <QMetaType>
typedef QVarLengthArray<qreal, 256> QRealArray;
Q_DECLARE_METATYPE(QRealArray)
#endif

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src/realprogressbarthread.cpp Normal file
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/*
* Bittorrent Client using Qt4 and libtorrent.
* Copyright (C) 2006 Christophe Dumez, Arnaud Demaiziere
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contact : chris@qbittorrent.org, arnaud@qbittorrent.org
*/
#include "realprogressbarthread.h"
#include "realprogressbar.h"
#include <QtDebug>
#include <QMutexLocker>
RealProgressBarThread::RealProgressBarThread(RealProgressBar *pb, QTorrentHandle &handle) : QThread(pb), thandle(handle), array(pb->width()){
size = pb->width();
abort = false;
connect(pb, SIGNAL(widthChanged(int)), this, SLOT(resize(int)), Qt::DirectConnection);
connect(this, SIGNAL(refreshed(QRealArray)), pb, SLOT(setProgress(QRealArray)));
}
RealProgressBarThread::~RealProgressBarThread(){
qDebug("RealProgressBarThread destruction");
resize(-1);
qDebug("RealProgressBarThread waiting");
wait();
qDebug("RealProgressBarThread destroyed");
}
void RealProgressBarThread::resize(int width)
{
QMutexLocker locker(&mutex);
size = width;
abort = true;
condition.wakeOne();
}
void RealProgressBarThread::refresh()
{
QMutexLocker locker(&mutex);
condition.wakeOne();
}
//this is called inside run()
#define CHECK_INTERRUPT \
switch(ifInterrupted())\
{\
case stop:\
qDebug("RealProgressBarThread stop");\
return;\
case restart:\
qDebug("RealProgressBarThread restart");\
goto start;\
}
void RealProgressBarThread::run(){
//wait for refresh or rezise slot
wait:
QMutexLocker locker(&mutex);
condition.wait(&mutex);
locker.unlock();
//start checking the torrent information
start:
CHECK_INTERRUPT
size_type total_size = thandle.total_size();
size_type piece_length = thandle.piece_length();
int num_pieces = thandle.num_pieces();
const std::vector<bool>* pieces = thandle.pieces();
if (pieces == 0)
return;
//empty the array
locker.relock();
for(int i=0; i<size; i++)
array[i] = 0.;
locker.unlock();
qreal subfraction = size / (qreal) total_size;
qreal fraction = subfraction * piece_length;
//fill the array with complete pieces
for(int i=0; i<num_pieces; i++)
{
CHECK_INTERRUPT
qreal start = i * fraction;
qreal end = start + fraction;
if((*pieces)[i])
mark(start, end);
}
//fill the array with incomplete pieces (from download queue)
std::vector<partial_piece_info> queue;
thandle.get_download_queue(queue);
for(unsigned int i=0; i<queue.size(); i++)
{
partial_piece_info ppi = queue[i];
qreal start = ppi.piece_index * fraction;
qreal end = start;
for(int j=0; j<ppi.blocks_in_piece; j++)
{
CHECK_INTERRUPT
block_info bi = ppi.blocks[j];
end += bi.block_size * subfraction;
qreal progress = bi.bytes_progress / (qreal) bi.block_size;
mark(start, end, progress);
start = end;
}
}
// qreal sum = 0.;
// locker.relock();
// for(int i=0; i<size; i++)
// sum += array[i];
// qDebug()<<"progress:"<<sum*100./size();
// locker.unlock();
qDebug("refreshed emmitted");
emit refreshed(array);
goto wait;
}
//this is called by CHECK_INTERRUPT
Interrupt RealProgressBarThread::ifInterrupted()
{
QMutexLocker locker(&mutex);
if(abort)
{
abort = false;
if(size < 0)
return stop;
if(size != array.size())
{
array.resize(size);
return restart;
}
}
return ignore;
}
void RealProgressBarThread::mark(qreal start, qreal end, qreal progress){
QMutexLocker locker(&mutex);
if (end > size)
end = size;
int start_int, end_int;
qreal temp, start_frac, end_frac;
start_frac = modf(start, &temp);
start_int = (int) temp;
end_frac = modf(end, &temp);
end_int = (int) temp;
if(start_int == end_int)
{
array[start_int] += progress * (end - start);
return;
}
if (start_frac > 0.)
array[start_int] += progress * (1 - start_frac);
if (end_frac > 0.)
array[end_int] += progress * end_frac;
for(int i=start_int+1; i<end_int; i++)
array[i] += progress;
}

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/*
* Bittorrent Client using Qt4 and libtorrent.
* Copyright (C) 2006 Christophe Dumez, Arnaud Demaiziere
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contact : chris@qbittorrent.org, arnaud@qbittorrent.org
*/
#ifndef REALPROGRESSBARTHREAD_H
#define REALPROGRESSBARTHREAD_H
#include "qtorrenthandle.h"
#include "qrealarray.h"
#include <QThread>
#include <QMutex>
#include <QWaitCondition>
class RealProgressBar;
enum Interrupt
{
ignore,
restart,
stop
};
class RealProgressBarThread : public QThread {
Q_OBJECT
private:
bool abort;
int size;
QTorrentHandle thandle;
QMutex mutex;
QWaitCondition condition;
QRealArray array;
public:
RealProgressBarThread(RealProgressBar *pb, QTorrentHandle &handle);
~RealProgressBarThread();
public slots:
void resize(int width);
void refresh();
signals:
void refreshed(QRealArray progress);
protected:
void run();
private:
Interrupt ifInterrupted();
void mark(qreal start, qreal end, qreal progress = 1.);
};
#endif