File indexing completed on 2024-04-28 16:49:50 

0001 #include <KLocalizedString>
0002 #include <QString>
0003 
0004 #include "lsof.h"
0005 
0006 struct KLsofWidgetPrivate {
0007     qlonglong pid;
0008     QProcess *process;
0009 };
0010 
0011 KLsofWidget::KLsofWidget(QWidget *parent)
0012     : QTreeWidget(parent)
0013     , d(new KLsofWidgetPrivate)
0014 {
0015     d->pid = -1;
0016     setColumnCount(3);
0017     setUniformRowHeights(true);
0018     setRootIsDecorated(false);
0019     setItemsExpandable(false);
0020     setSortingEnabled(true);
0021     setAllColumnsShowFocus(true);
0022     setHeaderLabels(QStringList() << i18nc("Short for File Descriptor", "FD") << i18n("Type") << i18n("Object"));
0023     d->process = new QProcess(this);
0024     connect(d->process, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(finished(int, QProcess::ExitStatus)));
0025 }
0026 
0027 KLsofWidget::~KLsofWidget()
0028 {
0029     delete d;
0030 }
0031 
0032 qlonglong KLsofWidget::pid() const
0033 {
0034     return d->pid;
0035 }
0036 
0037 void KLsofWidget::setPid(qlonglong pid)
0038 {
0039     d->pid = pid;
0040     update();
0041 }
0042 
0043 bool KLsofWidget::update()
0044 {
0045     clear();
0046     QStringList args;
0047     d->process->waitForFinished();
0048     args << QStringLiteral("-Fftn");
0049     if (d->pid > 0)
0050         args << (QStringLiteral("-p") + QString::number(d->pid));
0051     d->process->start(QStringLiteral("lsof"), args);
0052     return true;
0053 }
0054 
0055 void KLsofWidget::finished(int exitCode, QProcess::ExitStatus exitStatus)
0056 {
0057     Q_UNUSED(exitCode);
0058     Q_UNUSED(exitStatus);
0059 
0060     char buf[1024];
0061     QTreeWidgetItem *process = nullptr;
0062     while (true) {
0063         qint64 lineLength = d->process->readLine(buf, sizeof(buf));
0064 
0065         if (lineLength <= 0)
0066             break;
0067         if (buf[lineLength - 1] == '\n')
0068             lineLength--;
0069 
0070         switch (buf[0]) {
0071         /* Process related stuff */
0072         case 'f':
0073             process = new QTreeWidgetItem(this);
0074             process->setText(0, QString::fromUtf8(buf + 1, lineLength - 1));
0075             break;
0076         case 't':
0077             if (process)
0078                 process->setText(1, QString::fromUtf8(buf + 1, lineLength - 1));
0079             break;
0080 
0081         case 'n':
0082             if (process)
0083                 process->setText(2, QString::fromUtf8(buf + 1, lineLength - 1));
0084             break;
0085         default:
0086             break;
0087         }
0088     }
0089 }