You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
2.0 KiB
99 lines
2.0 KiB
/*
|
|
*
|
|
* $Id: k3bthroughputestimator.cpp 619556 2007-01-03 17:38:12Z trueg $
|
|
* Copyright (C) 2003 Sebastian Trueg <trueg@k3b.org>
|
|
*
|
|
* This file is part of the K3b project.
|
|
* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
|
|
*
|
|
* 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.
|
|
* See the file "COPYING" for the exact licensing terms.
|
|
*/
|
|
|
|
|
|
#include "k3bthroughputestimator.h"
|
|
|
|
#include <tqdatetime.h>
|
|
#include <kdebug.h>
|
|
|
|
|
|
class K3bThroughputEstimator::Private
|
|
{
|
|
public:
|
|
Private()
|
|
: started(false) {
|
|
}
|
|
|
|
TQTime firstDataTime;
|
|
unsigned long firstData;
|
|
TQTime lastDataTime;
|
|
unsigned long lastData;
|
|
|
|
int lastThroughput;
|
|
|
|
bool started;
|
|
};
|
|
|
|
|
|
K3bThroughputEstimator::K3bThroughputEstimator( TQObject* parent, const char* name )
|
|
: TQObject( parent, name )
|
|
{
|
|
d = new Private();
|
|
}
|
|
|
|
|
|
K3bThroughputEstimator::~K3bThroughputEstimator()
|
|
{
|
|
delete d;
|
|
}
|
|
|
|
|
|
int K3bThroughputEstimator::average() const
|
|
{
|
|
int msecs = d->firstDataTime.msecsTo( d->lastDataTime );
|
|
if( msecs > 0 )
|
|
return (int)( 1000.0*(double)(d->lastData - d->firstData)/(double)msecs);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
|
|
void K3bThroughputEstimator::reset()
|
|
{
|
|
d->started = false;
|
|
}
|
|
|
|
|
|
void K3bThroughputEstimator::dataWritten( unsigned long data )
|
|
{
|
|
if( !d->started ) {
|
|
d->started = true;
|
|
d->firstData = d->lastData = data;
|
|
d->firstDataTime.start();
|
|
d->lastDataTime.start();
|
|
d->lastThroughput = 0;
|
|
}
|
|
else if( data > d->lastData ) {
|
|
unsigned long diff = data - d->lastData;
|
|
int msecs = d->lastDataTime.elapsed();
|
|
|
|
//if( msecs > 0 ) {
|
|
// down the update sequence a little bit
|
|
if( msecs > 500 ) {
|
|
d->lastData = data;
|
|
d->lastDataTime.start();
|
|
int t = (int)(1000.0*(double)diff/(double)msecs);
|
|
if( t != d->lastThroughput ) {
|
|
d->lastThroughput = t;
|
|
emit throughput( t );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
#include "k3bthroughputestimator.moc"
|