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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 <qheader.h>
#include <qlistview.h>
#include <qlayout.h>
#include <qtimer.h>
#include <qfile.h>
#include <qdir.h>
#include "processinfo.h"
#include "processdetail.h"
ProcessInfo::ProcessInfo( QWidget* parent, const char* name, WFlags fl )
: QWidget( parent, name, fl )
{
QVBoxLayout *layout = new QVBoxLayout( this, 5 );
ProcessView = new QListView( 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 );
connect( ProcessView, SIGNAL( doubleClicked(QListViewItem *) ), this, SLOT( viewProcess(QListViewItem *) ) );
layout->addWidget( ProcessView );
QTimer *t = new QTimer( this );
connect( t, SIGNAL( timeout() ), this, SLOT( updateData() ) );
t->start( 5000 );
updateData();
}
ProcessInfo::~ProcessInfo()
{
}
void ProcessInfo::updateData()
{
QString processnum("");
QString processcmd("");
QString processstatus("");
QString processtime("");
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[255];
ProcessView->clear();
QDir *procdir = new QDir("/proc");
procdir->setFilter(QDir::Dirs);
procdir->setSorting(QDir::Name);
QFileInfoList *proclist = new QFileInfoList(*(procdir->entryInfoList()));
if ( proclist )
{
QFileInfoListIterator it(*proclist);
QFileInfo *f;
while ( ( f = it.current() ) != 0 )
{
++it;
processnum = f->fileName();
if ( processnum >= "0" && 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, ' ' );
processcmd = QString( comm ).replace( QRegExp( "(" ), "" );
processcmd = processcmd.replace( QRegExp( ")" ), "" );
processstatus = state;
processtime.setNum( ( utime + stime ) / 100 );
processtime = processtime.rightJustify( 9, ' ' );
fclose( procfile );
( void ) new QListViewItem( ProcessView, processnum, processcmd, processstatus, processtime );
}
}
}
}
delete proclist;
delete procdir;
}
void ProcessInfo::viewProcess(QListViewItem *process)
{
QString pid= process->text(0).stripWhiteSpace();
QString command = process->text(1);
ProcessDetail *processdtl = new ProcessDetail( this, 0, TRUE, 0);
processdtl->setCaption( pid + " - " + command );
processdtl->pid = pid.toUInt();
processdtl->ProcessView->setTextFormat( RichText );
FILE *statfile = fopen( ( QString ) ( "/proc/" + pid + "/status"), "r");
if ( statfile )
{
char line[81];
fgets( line, 81, statfile );
processdtl->ProcessView->setText( line );
while ( fgets( line, 81, statfile ) )
{
processdtl->ProcessView->append( line );
}
fclose( statfile );
}
processdtl->showMaximized();
}
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