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/**********************************************************************
** ModulesInfo
**
** Display Modules information
**
** Copyright (C) 2002, Michael Lauer
** mickey@tm.informatik.uni-frankfurt.de
** http://www.Vanille.de
**
** Based on ProcessInfo by Dan Williams <williamsdr@acm.org>
**
** 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.
**
**********************************************************************/
#include "modulesinfo.h"
#include "detail.h"
/* OPIE */
#include <opie2/olistview.h>
#include <qpe/qpeapplication.h>
/* QT */
#include <qcombobox.h>
#include <qfile.h>
#include <qlayout.h>
#include <qmessagebox.h>
#include <qpushbutton.h>
#include <qtextview.h>
#include <qtimer.h>
#include <qwhatsthis.h>
using namespace Opie::Ui;
ModulesInfo::ModulesInfo( QWidget* parent, const char* name, WFlags fl )
: QWidget( parent, name, fl )
{
QGridLayout *layout = new QGridLayout( this );
layout->setSpacing( 4 );
layout->setMargin( 4 );
ModulesView = new OListView( this );
int colnum = ModulesView->addColumn( tr( "Module" ) );
colnum = ModulesView->addColumn( tr( "Size" ) );
ModulesView->setColumnAlignment( colnum, Qt::AlignRight );
colnum = ModulesView->addColumn( tr( "Use#" ) );
ModulesView->setColumnAlignment( colnum, Qt::AlignRight );
colnum = ModulesView->addColumn( tr( "Used by" ) );
ModulesView->setAllColumnsShowFocus( TRUE );
layout->addMultiCellWidget( ModulesView, 0, 0, 0, 1 );
QWhatsThis::add( ModulesView, tr( "This is a list of all the kernel modules currently loaded on this handheld device.\n\nClick and hold on a module to see additional information about the module, or to unload it." ) );
// Test if we have /sbin/modinfo, and if so, allow module detail window
if ( QFile::exists( "/sbin/modinfo" ) )
{
QPEApplication::setStylusOperation( ModulesView->viewport(), QPEApplication::RightOnHold );
connect( ModulesView, SIGNAL( rightButtonPressed(QListViewItem*,const QPoint&,int) ),
this, SLOT( viewModules(QListViewItem*) ) );
}
CommandCB = new QComboBox( FALSE, this );
CommandCB->insertItem( "modprobe -r" );
CommandCB->insertItem( "rmmod" );
// I can't think of other useful commands yet. Anyone?
layout->addWidget( CommandCB, 1, 0 );
QWhatsThis::add( CommandCB, tr( "Select a command here and then click the Send button to the right to send the command to module selected above." ) );
QPushButton *btn = new QPushButton( this );
btn->setMinimumSize( QSize( 50, 24 ) );
btn->setMaximumSize( QSize( 50, 24 ) );
btn->setText( tr( "Send" ) );
connect( btn, SIGNAL( clicked() ), this, SLOT( slotSendClicked() ) );
layout->addWidget( btn, 1, 1 );
QWhatsThis::add( btn, tr( "Click here to send the selected command to the module selected above." ) );
QTimer *t = new QTimer( this );
connect( t, SIGNAL( timeout() ), this, SLOT( updateData() ) );
t->start( 5000 );
updateData();
ModulesDtl = new Detail();
QWhatsThis::add( ModulesDtl->detailView, tr( "This area shows detailed information about this module." ) );
}
ModulesInfo::~ModulesInfo()
{}
void ModulesInfo::updateData()
{
char modname[64];
char usage[200];
int modsize, usecount;
QString selectedmod;
OListViewItem *curritem = static_cast<OListViewItem*>( ModulesView->currentItem() );
if ( curritem )
{
selectedmod = curritem->text( 0 );
}
ModulesView->clear();
FILE *procfile = fopen( ( QString ) ( "/proc/modules"), "r");
if ( procfile )
{
OListViewItem *newitem;
OListViewItem *selecteditem = 0x0;
while ( true )
{
modname[0] = '\0';
usage[0] = '\0';
int success = fscanf( procfile, "%s%d%d%[^\n]", modname, &modsize, &usecount, usage );
if ( success == EOF )
break;
QString qmodname = QString( modname );
QString qmodsize = QString::number( modsize ).rightJustify( 6, ' ' );
QString qusecount = QString::number( usecount ).rightJustify( 2, ' ' );
QString qusage = QString( usage );
newitem = new OListViewItem( ModulesView, qmodname, qmodsize, qusecount, qusage );
if ( qmodname == selectedmod )
{
selecteditem = newitem;
}
}
ModulesView->setCurrentItem( selecteditem );
fclose( procfile );
}
}
void ModulesInfo::slotSendClicked()
{
if ( !ModulesView->currentItem() )
{
return;
}
QString capstr = tr( "You really want to execute\n%1 for this module?" ).arg( CommandCB->currentText() );
QString modname = ModulesView->currentItem()->text( 0 );
if ( QMessageBox::warning( this, modname, capstr,
QMessageBox::Yes | QMessageBox::Default, QMessageBox::No | QMessageBox::Escape ) == QMessageBox::Yes )
{
QString command = "/sbin/";
command.append( CommandCB->currentText() );
command.append( " " );
command.append( modname );
FILE* stream = popen( command, "r" );
if ( stream )
pclose( stream );
}
}
void ModulesInfo::viewModules( QListViewItem *module ) {
if ( !module )
return;
viewModules( static_cast<OListViewItem*>( module ) );
}
void ModulesInfo::viewModules( OListViewItem *modules )
{
QString modname = modules->text( 0 );
QString capstr = "Module: ";
capstr.append( modname );
ModulesDtl->setCaption( capstr );
QString command = "/sbin/modinfo ";
command.append( modname );
FILE* modinfo = popen( command, "r" );
if ( modinfo )
{
char line[200];
ModulesDtl->detailView->setText( " Details:\n------------\n" );
while( true )
{
int success = fscanf( modinfo, "%[^\n]\n", line );
if ( success == EOF )
break;
ModulesDtl->detailView->append( line );
}
pclose( modinfo );
}
QPEApplication::showWidget( ModulesDtl );
}
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