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-rw-r--r--noncore/settings/sysinfo/memory.cpp70
-rw-r--r--noncore/settings/sysinfo/memory.h1
2 files changed, 47 insertions, 24 deletions
diff --git a/noncore/settings/sysinfo/memory.cpp b/noncore/settings/sysinfo/memory.cpp
index 23dd8bd..05349e4 100644
--- a/noncore/settings/sysinfo/memory.cpp
+++ b/noncore/settings/sysinfo/memory.cpp
@@ -1,141 +1,165 @@
/**********************************************************************
** Copyright (C) 2000 Trolltech AS. All rights reserved.
**
** This file is part of Qtopia Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#include <qlabel.h>
#include <qtimer.h>
#include <qfile.h>
#include <qtextstream.h>
#include <qlayout.h>
#include <qwhatsthis.h>
#include "graph.h"
#include "memory.h"
MemoryInfo::MemoryInfo( QWidget *parent, const char *name, WFlags f )
: QWidget( parent, name, f )
{
QVBoxLayout *vb = new QVBoxLayout( this, 5 );
totalMem = new QLabel( this );
vb->addWidget( totalMem );
data = new GraphData();
graph = new BarGraph( this );
graph->setFrameStyle( QFrame::Panel | QFrame::Sunken );
vb->addWidget( graph, 1 );
graph->setData( data );
legend = new GraphLegend( this );
vb->addWidget( legend );
legend->setData( data );
swapMem = new QLabel( this );
vb->addWidget( swapMem );
swapdata = new GraphData();
swapgraph = new BarGraph( this );
swapgraph->setFrameStyle( QFrame::Panel | QFrame::Sunken );
vb->addWidget( swapgraph, 1 );
swapgraph->setData( swapdata );
swaplegend = new GraphLegend( this );
vb->addWidget( swaplegend );
swaplegend->setData( swapdata );
vb->addStretch( 1 );
updateData();
QTimer *t = new QTimer( this );
connect( t, SIGNAL( timeout() ), this, SLOT( updateData() ) );
t->start( 5000 );
QWhatsThis::add( this, tr( "This page shows how memory (i.e. RAM) is being allocated on your device.\nMemory is categorized as follows:\n\n1. Used - memory used to by Opie and any running applications.\n2. Buffers - temporary storage used to improve performance\n3. Cached - information that has recently been used, but has not been freed yet.\n4. Free - memory not currently used by Opie or any running applications." ) );
}
MemoryInfo::~MemoryInfo()
{
delete data;
}
void MemoryInfo::updateData()
{
QFile file( "/proc/meminfo" );
if ( file.open( IO_ReadOnly ) )
{
+ // local variables
+ QString line;
+ QString identifier;
+ QString value;
+ int position;
QTextStream t( &file );
- QString dummy = t.readLine(); // title
- t >> dummy;
- t >> total;
- total /= 1000;
- t >> used;
- used /= 1000;
- t >> memfree;
- memfree /= 1000;
- t >> shared;
- shared /= 1000;
- t >> buffers;
- buffers /= 1000;
- t >> cached;
- cached /= 1000;
+
+ while ( !t.atEnd() )
+ {
+ // read a line
+ line = t.readLine();
+
+ // extract identifier and value from line
+ position = line.find( ":" );
+ identifier = line.left( position );
+ value = line.mid( position + 1, line.length() - position - 3 );
+ value = value.stripWhiteSpace();
+
+ // copy values in variables
+ if ( identifier == "MemTotal" )
+ {
+ total = value.toULong();
+ } else if ( identifier == "MemFree" )
+ {
+ memfree = value.toULong();
+ } else if ( identifier == "Buffers" )
+ {
+ buffers = value.toULong();
+ } else if ( identifier == "Cached" )
+ {
+ cached = value.toULong();
+ } else if ( identifier == "SwapCached" )
+ {
+ } else if ( identifier == "SwapTotal" )
+ {
+ swaptotal = value.toULong();
+ } else if ( identifier == "SwapFree" )
+ {
+ swapfree = value.toULong();
+ }
+ }
+
+ file.close();
+
+ // calculate values
+ used = total - memfree;
+ swapused = swaptotal - swapfree;
realUsed = total - ( buffers + cached + memfree );
+ // visualize values
totalMem->setText( tr( "Total Memory: %1 kB" ).arg( total ) );
data->clear();
data->addItem( tr("Used (%1 kB)").arg(realUsed), realUsed );
data->addItem( tr("Buffers (%1 kB)").arg(buffers), buffers );
data->addItem( tr("Cached (%1 kB)").arg(cached), cached );
data->addItem( tr("Free (%1 kB)").arg(memfree), memfree );
graph->hide();
graph->show();
legend->update();
- // swapfile
- t >> dummy;
- t >> swaptotal;
- swaptotal /= 1000;
- t >> swapused;
- swapused /= 1000;
- t >> swapfree;
- swapfree /= 1000;
-
if (swaptotal > 0)
{
swapMem->setText( tr( "Total Swap: %1 kB" ).arg( swaptotal ) );
swapdata->clear();
swapdata->addItem( tr("Used (%1 kB)").arg(swapused), swapused );
swapdata->addItem( tr("Free (%1 kB)").arg(swapfree), swapfree );
swapMem->show();
swapgraph->show();
swaplegend->show();
swapgraph->repaint( FALSE );
swaplegend->update();
}
else
{
swapMem->hide();
swapgraph->hide();
swaplegend->hide();
}
}
}
diff --git a/noncore/settings/sysinfo/memory.h b/noncore/settings/sysinfo/memory.h
index c2af948..f655604 100644
--- a/noncore/settings/sysinfo/memory.h
+++ b/noncore/settings/sysinfo/memory.h
@@ -1,64 +1,63 @@
/**********************************************************************
** Copyright (C) 2000 Trolltech AS. All rights reserved.
**
** This file is part of Qtopia Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#ifndef MEMORY_H
#define MEMORY_H
#include <qwidget.h>
class GraphData;
class Graph;
class GraphLegend;
class QLabel;
class MemoryInfo : public QWidget
{
Q_OBJECT
public:
MemoryInfo( QWidget *parent = 0, const char *name = 0, WFlags f = 0 );
~MemoryInfo();
unsigned long total;
unsigned long used;
unsigned long memfree;
- unsigned long shared;
unsigned long buffers;
unsigned long cached;
unsigned long realUsed;
unsigned long swaptotal;
unsigned long swapused;
unsigned long swapfree;
private slots:
void updateData();
private:
QLabel *totalMem;
GraphData *data;
Graph *graph;
GraphLegend *legend;
QLabel* swapMem;
GraphData *swapdata;
Graph *swapgraph;
GraphLegend *swaplegend;
};
#endif