File indexing completed on 2024-04-28 05:31:34 

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     }
0052     d->process->start(QStringLiteral("lsof"), args);
0053     return true;
0054 }
0055 
0056 void KLsofWidget::finished(int exitCode, QProcess::ExitStatus exitStatus)
0057 {
0058     Q_UNUSED(exitCode);
0059     Q_UNUSED(exitStatus);
0060 
0061     char buf[1024];
0062     QTreeWidgetItem *process = nullptr;
0063     while (true) {
0064         qint64 lineLength = d->process->readLine(buf, sizeof(buf));
0065 
0066         if (lineLength <= 0) {
0067             break;
0068         }
0069         if (buf[lineLength - 1] == '\n') {
0070             lineLength--;
0071         }
0072 
0073         switch (buf[0]) {
0074         /* Process related stuff */
0075         case 'f':
0076             process = new QTreeWidgetItem(this);
0077             process->setText(0, QString::fromUtf8(buf + 1, lineLength - 1));
0078             break;
0079         case 't':
0080             if (process) {
0081                 process->setText(1, QString::fromUtf8(buf + 1, lineLength - 1));
0082             }
0083             break;
0084 
0085         case 'n':
0086             if (process) {
0087                 process->setText(2, QString::fromUtf8(buf + 1, lineLength - 1));
0088             }
0089             break;
0090         default:
0091             break;
0092         }
0093     }
0094 }