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/**********************************************************************
** ProcessInfo
**
** Display process information
**
** Copyright (C) 2002, Dan Williams
** williamsdr@acm.org
** http://draknor.net
**
** 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 "processinfo.h"
#include "detail.h"
/* OPIE */
#include <opie2/olistview.h>
#include <qpe/qpeapplication.h>
/* QT */
#include <qcombobox.h>
#include <qdir.h>
#include <qlayout.h>
#include <qmessagebox.h>
#include <qpushbutton.h>
#include <qtextview.h>
#include <qtimer.h>
#include <qwhatsthis.h>
/* STD */
#include <sys/types.h>
#include <signal.h>
using namespace Opie::Ui;
ProcessInfo::ProcessInfo( QWidget* parent, const char* name, WFlags fl )
: QWidget( parent, name, fl )
{
QGridLayout *layout = new QGridLayout( this );
layout->setSpacing( 4 );
layout->setMargin( 4 );
ProcessView = new OListView( this, "ProcessView" );
int colnum = ProcessView->addColumn( tr( "PID" ) );
ProcessView->setColumnAlignment( colnum, Qt::AlignRight );
colnum = ProcessView->addColumn( tr( "Command" ),96 );
colnum = ProcessView->addColumn( tr( "Status" ) );
colnum = ProcessView->addColumn( tr( "Time" ) );
ProcessView->setColumnAlignment( colnum, Qt::AlignRight );
ProcessView->setAllColumnsShowFocus( TRUE );
QPEApplication::setStylusOperation( ProcessView->viewport(), QPEApplication::RightOnHold );
connect( ProcessView, SIGNAL( rightButtonPressed(QListViewItem*,const QPoint&,int) ),
this, SLOT( viewProcess(QListViewItem*) ) );
layout->addMultiCellWidget( ProcessView, 0, 0, 0, 1 );
QWhatsThis::add( ProcessView, tr( "This is a list of all the processes on this handheld device.\n\nClick and hold on a process to see additional information about the process, or to send a signal to it." ) );
SignalCB = new QComboBox( FALSE, this, "SignalCB" );
SignalCB->insertItem( " 1: SIGHUP" );
SignalCB->insertItem( " 2: SIGINT" );
SignalCB->insertItem( " 3: SIGQUIT" );
SignalCB->insertItem( " 5: SIGTRAP" );
SignalCB->insertItem( " 6: SIGABRT" );
SignalCB->insertItem( " 9: SIGKILL" );
SignalCB->insertItem( "14: SIGALRM" );
SignalCB->insertItem( "15: SIGTERM" );
SignalCB->insertItem( "18: SIGCONT" );
SignalCB->insertItem( "19: SIGSTOP" );
layout->addWidget( SignalCB, 1, 0 );
QWhatsThis::add( SignalCB, tr( "Select a signal here and then click the Send button to the right to send to this process." ) );
SendButton = new QPushButton( this, "SendButton" );
SendButton->setMinimumSize( QSize( 50, 24 ) );
SendButton->setMaximumSize( QSize( 50, 24 ) );
SendButton->setText( tr( "Send" ) );
connect( SendButton, SIGNAL( clicked() ), this, SLOT( slotSendClicked() ) );
layout->addWidget( SendButton, 1, 1 );
QWhatsThis::add( SendButton, tr( "Click here to send the selected signal to this process." ) );
QTimer *t = new QTimer( this );
connect( t, SIGNAL( timeout() ), this, SLOT( updateData() ) );
t->start( 5000 );
updateData();
ProcessDtl = new Detail();
QWhatsThis::add( ProcessDtl->detailView, tr( "This area shows detailed information about this process." ) );
}
ProcessInfo::~ProcessInfo()
{}
void ProcessInfo::updateData()
{
int pid, ppid, pgrp, session, tty, tpgid, utime, stime, cutime, cstime, counter, priority, starttime,
signal, blocked, sigignore, sigcatch;
uint flags, minflt, cminflt, majflt, cmajflt, timeout, itrealvalue, vsize, rss, rlim, startcode,
endcode, startstack, kstkesp, kstkeip, wchan;
char state;
char comm[64];
QString selectedpid;
OListViewItem *curritem = static_cast<OListViewItem*>( ProcessView->currentItem() );
if ( curritem )
{
selectedpid = curritem->text( 0 );
}
ProcessView->clear();
OListViewItem *newitem;
OListViewItem *selecteditem = 0x0;
QDir *procdir = new QDir("/proc", 0, QDir::Name, QDir::Dirs);
QFileInfoList *proclist = new QFileInfoList(*(procdir->entryInfoList()));
if ( proclist )
{
QFileInfoListIterator it(*proclist);
QFileInfo *f;
while ( ( f = it.current() ) != 0 )
{
++it;
QString processnum = f->fileName();
if ( processnum >= "1" && processnum <= "99999" )
{
FILE *procfile = fopen( ( QString ) ( "/proc/" + processnum + "/stat"), "r");
if ( procfile )
{
fscanf( procfile,
"%d %s %c %d %d %d %d %d %u %u %u %u %u %d %d %d %d %d %d %u %u %d %u %u %u %u %u %u %u %u %d %d %d %d %u",
&pid, comm, &state, &ppid, &pgrp, &session,&tty, &tpgid, &flags, &minflt, &cminflt,
&majflt, &cmajflt, &utime, &stime, &cutime, &cstime, &counter, &priority, &timeout,
&itrealvalue, &starttime, &vsize, &rss, &rlim, &startcode, &endcode, &startstack,
&kstkesp, &kstkeip, &signal, &blocked, &sigignore, &sigcatch, &wchan );
processnum = processnum.rightJustify( 5, ' ' );
QString processcmd = QString( comm ).replace( QRegExp( "[()]" ), "" );
QString processstatus = QChar(state);
QString processtime = QString::number( ( utime + stime ) / 100 );
processtime = processtime.rightJustify( 9, ' ' );
fclose( procfile );
newitem = new OListViewItem( ProcessView, processnum, processcmd, processstatus, processtime );
if ( processnum == selectedpid )
{
selecteditem = newitem;
}
}
}
}
ProcessView->setCurrentItem( selecteditem );
}
delete proclist;
delete procdir;
}
void ProcessInfo::slotSendClicked()
{
OListViewItem *currprocess = static_cast<OListViewItem*>( ProcessView->currentItem() );
if ( !currprocess )
{
return;
}
QString capstr = tr( "Really want to send %1\nto this process?" ).arg( SignalCB->currentText() );
if ( QMessageBox::warning( this, currprocess->text( 1 ), capstr,
QMessageBox::Yes | QMessageBox::Default, QMessageBox::No | QMessageBox::Escape ) == QMessageBox::Yes )
{
currprocess = static_cast<OListViewItem*>( ProcessView->currentItem() );
if ( currprocess )
{
QString sigstr = SignalCB->currentText();
sigstr.truncate(2);
int sigid = sigstr.toUInt();
kill( currprocess->text( 0 ).stripWhiteSpace().toUInt(), sigid );
}
}
}
void ProcessInfo::viewProcess( QListViewItem* process ) {
if ( !process )
return;
viewProcess( static_cast<OListViewItem*>( process ) );
}
void ProcessInfo::viewProcess( OListViewItem *process )
{
QString pid= process->text( 0 ).stripWhiteSpace();
QString command = process->text( 1 );
ProcessDtl->setCaption( pid + " - " + command );
FILE *statfile = fopen( ( QString ) ( "/proc/" + pid + "/status"), "r");
if ( statfile )
{
char line[81];
fgets( line, 81, statfile );
ProcessDtl->detailView->setText( line );
while ( fgets( line, 81, statfile ) )
{
ProcessDtl->detailView->append( line );
}
fclose( statfile );
}
QPEApplication::showWidget( ProcessDtl );
}
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