Diffstat (limited to 'noncore/applets/memoryapplet/swapfile.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | noncore/applets/memoryapplet/swapfile.cpp | 436 |
1 files changed, 436 insertions, 0 deletions
diff --git a/noncore/applets/memoryapplet/swapfile.cpp b/noncore/applets/memoryapplet/swapfile.cpp new file mode 100644 index 0000000..06746a7 --- a/dev/null +++ b/noncore/applets/memoryapplet/swapfile.cpp @@ -0,0 +1,436 @@ +/********************************************************************** +** Copyright (C) 2000 Trolltech AS. All rights reserved. +** +** This file is part of Qtopia Environment. +** +** 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. +** +** See http://www.trolltech.com/gpl/ for GPL licensing information. +** +** Contact info@trolltech.com if any conditions of this licensing are +** not clear to you. +** +**********************************************************************/ + +#include "swapfile.h" + +#include <qlabel.h> +#include <qtimer.h> +#include <qfile.h> +#include <qtextstream.h> +#include <qlayout.h> +#include <qpushbutton.h> +#include <qhbuttongroup.h> +#include <qradiobutton.h> +#include <qlineedit.h> +#include <qprogressbar.h> +#include <qcombobox.h> +#include <qvgroupbox.h> +#include <qhbox.h> +#include <qmessagebox.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <qfile.h> +#include <qtextstream.h> + +#include <qcopchannel_qws.h> +#include <qpe/resource.h> + +#include <unistd.h> +#include <fcntl.h> +#include <sys/vfs.h> +#include <mntent.h> +#include <unistd.h>
+#include <sys/types.h>
+ +Swapfile::Swapfile( QWidget *parent, const char *name, WFlags f ) + : QWidget( parent, name, f ) +{ + // are we running as root? + isRoot = geteuid() == 0; + + QVBoxLayout* vb = new QVBoxLayout(this, 5); + + QHButtonGroup* cfsdRBG = new QHButtonGroup(tr("Swapfile location"), this); + cfsdRBG->setRadioButtonExclusive(true); + vb->addWidget(cfsdRBG); + + ramRB = new QRadioButton(tr("RAM"), cfsdRBG); + cfRB = new QRadioButton(tr("CF Card"), cfsdRBG); + sdRB = new QRadioButton(tr("SD Card"), cfsdRBG); + + QHBox *hb1 = new QHBox(this); + hb1->setSpacing(5); + + swapPath1 = new QLineEdit(hb1); + swapPath1->setEnabled(false); + + QPushButton* swapOn = new QPushButton(tr(" On "), hb1); + QPushButton* swapOff = new QPushButton(tr(" Off "), hb1); + vb->addWidget(hb1); + + QVGroupBox* box1 = new QVGroupBox(tr("Manage Swapfile"), this); + vb->addWidget(box1); + + QHBox *hb2 = new QHBox(box1); + hb2->setSpacing(5); + QPushButton* mkSwap = new QPushButton(tr("Generate"), hb2); + QPushButton* rmSwap = new QPushButton(tr("Remove"), hb2); + + QHBox *hb3 = new QHBox(box1); + hb3->setSpacing(5); + swapSize = new QComboBox(hb3); + swapSize->insertStringList(QStringList::split(",", tr("2 Mb,4 Mb,6 Mb,8 Mb"))); + + mkswapProgress = new QProgressBar(3, hb3); + mkswapProgress->setCenterIndicator(true); + + QHBox *hb4 = new QHBox(this); + hb4->setSpacing(5); + + swapStatusIcon = new QLabel(hb4); + swapStatus = new QLabel(tr(""), hb4); + hb4->setStretchFactor(swapStatus, 99); + vb->addWidget(hb4); + + connect(swapOn, SIGNAL(clicked()), this, SLOT(swapon())); + connect(swapOff, SIGNAL(clicked()), this, SLOT(swapoff())); + connect(cfRB, SIGNAL(clicked()), this, SLOT(cfsdchecked())); + connect(sdRB, SIGNAL(clicked()), this, SLOT(cfsdchecked())); + connect(ramRB, SIGNAL(clicked()), this, SLOT(cfsdchecked())); + connect(mkSwap, SIGNAL(clicked()), this, SLOT(makeswapfile())); + connect(rmSwap, SIGNAL(clicked()), this, SLOT(removeswapfile())); + + cfRB->setEnabled(FALSE); + sdRB->setEnabled(FALSE); + + QCopChannel *pcmciaChannel = new QCopChannel("QPE/Card", this); + connect(pcmciaChannel, SIGNAL(received(const QCString &, const QByteArray &)), this, SLOT(cardnotify(const QCString &, const QByteArray &))); + QCopChannel *sdChannel = new QCopChannel("QPE/Card", this); + connect(sdChannel, SIGNAL(received(const QCString &, const QByteArray &)), this, SLOT(cardnotify(const QCString &, const QByteArray &))); + + cardInPcmcia0 = FALSE; + cardInPcmcia1 = FALSE; + cardInSd = FALSE; + + Swapfile::status(); + Swapfile::getStatusPcmcia(); + Swapfile::getStatusSd(); +} + +int Swapfile::exec(const QString& arg) +{ + return system((!isRoot ? "sudo " : "") + arg); +} + + +Swapfile::~Swapfile() +{ +} + +void Swapfile::cardnotify(const QCString & msg, const QByteArray &) +{ + if (msg == "stabChanged()") + { + getStatusPcmcia(); + } + else if (msg == "mtabChanged()") + { + getStatusSd(); + } +} + +void Swapfile::getStatusPcmcia() +{ + + bool cardWas0 = cardInPcmcia0; // remember last state + bool cardWas1 = cardInPcmcia1; + + QString fileName; + + // one of these 3 files should exist + if (QFile::exists("/var/run/stab")) { + fileName = "/var/run/stab"; + } else if (QFile::exists("/var/state/pcmcia/stab")) { + fileName = "/var/state/pcmcia/stab"; + } else { + fileName = "/var/lib/pcmcia/stab"; + } + + QFile f(fileName); + + if (f.open(IO_ReadOnly)) { + QStringList list; + QTextStream stream(&f); + QString streamIn; + streamIn = stream.read(); + list = QStringList::split("\n", streamIn); + for (QStringList::Iterator line = list.begin(); line != list.end(); + line++) { + if ((*line).startsWith("Socket 0:")) { + if ((*line).startsWith("Socket 0: empty") && cardInPcmcia0) { + cardInPcmcia0 = FALSE; + } else if (!(*line).startsWith("Socket 0: empty") + && !cardInPcmcia0) { + cardInPcmcia0 = TRUE; + } + } else if ((*line).startsWith("Socket 1:")) { + if ((*line).startsWith("Socket 1: empty") && cardInPcmcia1) { + cardInPcmcia1 = FALSE; + } else if (!(*line).startsWith("Socket 1: empty") + && !cardInPcmcia1) { + cardInPcmcia1 = TRUE; + } + } + } + f.close(); + + if (cardWas0 != cardInPcmcia0 || cardWas1 != cardInPcmcia1) { + QString text = QString::null; + QString what = QString::null; + if (cardWas0 != cardInPcmcia0) { + if (cardInPcmcia0) { + cfRB->setEnabled(TRUE); + } else { + cfRB->setChecked(FALSE); + cfRB->setEnabled(FALSE); + } + } + + if (cardWas1 != cardInPcmcia1) { + if (cardInPcmcia1) { + cfRB->setEnabled(TRUE); + } else { + cfRB->setChecked(FALSE); + cfRB->setEnabled(FALSE); + } + } + } + } else { + // no file found + qDebug("no file found"); + cardInPcmcia0 = FALSE; + cardInPcmcia1 = FALSE; + } + Swapfile::cfsdchecked(); +} + + +void Swapfile::getStatusSd() +{ + + bool cardWas = cardInSd; // remember last state + cardInSd = FALSE; + +#if defined(_OS_LINUX_) || defined(Q_OS_LINUX) + struct mntent *me; + FILE *mntfp = setmntent("/etc/mtab", "r"); + + if (mntfp) { + while ((me = getmntent(mntfp)) != 0) { + QString fs = me->mnt_fsname; + if (fs.left(14) == "/dev/mmc/part1" || fs.left(7) == "/dev/sd" + || fs.left(9) == "/dev/mmcd") { + cardInSd = TRUE; + show(); + } + } + endmntent(mntfp); + } + + if (cardWas != cardInSd) { + QString text = QString::null; + QString what = QString::null; + if (cardInSd) { + sdRB->setEnabled(TRUE); + } else { + sdRB->setChecked(FALSE); + sdRB->setEnabled(FALSE); + } + } +#else +#error "Not on Linux" +#endif + Swapfile::cfsdchecked(); +} + +int rc=0; + +void Swapfile::swapon() +{ + char swapcmd[128] ="swapon "; + Swapfile::cfsdchecked(); + strcat(swapcmd,swapPath1->text()); + char *runcmd = swapcmd; + rc = exec(QString("%1").arg(runcmd)); + if (rc != 0) { + setStatusMessage("Failed to attach swapfile.", true); + } + else { +/* QMessageBox::information(this, "Information", "Swapfile is active!"); */ + setStatusMessage("Swapfile activated."); + } + Swapfile::status(); +} + + +void Swapfile::setStatusMessage(const QString& text, bool error /* = false */) +{ + swapStatus->setText("<b>" + text + "</b>"); + swapStatusIcon->setPixmap(Resource::loadPixmap(error ? "close" : "done")); +} + + +void Swapfile::swapoff() +{ + char swapcmd[128] ="swapoff "; + if (Swapfile::cfRB->isChecked() == TRUE) + Swapfile::cfsdchecked(); + strcat(swapcmd,swapPath1->text()); + char *runcmd = swapcmd; + rc = exec(QString("%1").arg(runcmd)); + if (rc != 0) { + setStatusMessage(tr("Failed to detach swapfile."), true); + } + else { +/* QMessageBox::information(this, "Information", "Swapfile is inactive!"); */ + setStatusMessage(tr("Swapfile deactivated.")); +/* Swapfile::swapPath->clear();*/ + } + Swapfile::status(); +} + +void Swapfile::cfsdchecked() +{ +/* Swapfile::swapPath->clear();*/ + Swapfile::swapPath1->clear(); + if (Swapfile::ramRB->isChecked() == TRUE) + { + Swapfile::swapPath1->insert("/home/swapfile"); + } + if (Swapfile::sdRB->isChecked() == TRUE) + { + Swapfile::swapPath1->insert("/mnt/card/swapfile"); + } + if (Swapfile::cfRB->isChecked() == TRUE) + { + Swapfile::swapPath1->insert("/mnt/cf/swapfile"); + } +/* Swapfile::swapPath->insert(Swapfile::swapPath1->text());*/ +} + +void Swapfile::makeswapfile() +{ + int i = swapSize->currentItem(); + + mkswapProgress->setProgress(1); + switch ( i ) { + case 0: rc=exec(QString("dd if=/dev/zero of=%1 bs=1k count=2048").arg(swapPath1->text())); + break; + case 1: rc=exec(QString("dd if=/dev/zero of=%1 bs=1k count=4096").arg(swapPath1->text())); + break; + case 2: rc=exec(QString("dd if=/dev/zero of=%1 bs=1k count=6144").arg(swapPath1->text())); + break; + case 3: rc=exec(QString("dd if=/dev/zero of=%1 bs=1k count=8192").arg(swapPath1->text())); + break; + } + if (rc != 0) { + setStatusMessage(tr("Failed to create swapfile."), true); + } + + mkswapProgress->setProgress(2); + rc=exec(QString("mkswap %1").arg(swapPath1->text())); + if (rc != 0) { + setStatusMessage(tr("Failed to initialize swapfile."), true); + } + mkswapProgress->setProgress(3); + mkswapProgress->reset(); + setStatusMessage(tr("Swapfile created.")); +} + +void Swapfile::removeswapfile() +{ + exec(QString("swapoff %1").arg(swapPath1->text())); + rc=exec(QString("rm -rf %1").arg(swapPath1->text())); + if (rc != 0) { + setStatusMessage(tr("Failed to remove swapfile."), true); + } + Swapfile::status(); + Swapfile::cfsdchecked(); + setStatusMessage(tr("Swapfile removed.")); +} + +void Swapfile::status() +{ + FILE *fp; + char buffer[128], swapfile[128], temp[128]; + int swapsize=2000, i=1; + + fp=fopen("/proc/swaps", "r"); + while ( (fgets(buffer,128,fp)) != NULL ) { + sscanf(buffer, "%s %s %d %s %s\n", swapfile, temp, &swapsize, temp, temp); + } + fclose(fp); + + ramRB->setChecked(FALSE); + cfRB->setChecked(FALSE); + sdRB->setChecked(FALSE); + + i=strcmp(swapfile, "/home/swapfile"); + if ( i == 0 ) { + ramRB->setChecked(TRUE); +/* QMessageBox::information(this, "Information", "Swapfile is active!"); */ + setStatusMessage(tr("Swapfile activated.")); + } + i=strcmp(swapfile, "/usr/mnt.rom/cf/swapfile"); + if ( i == 0 ) { + cfRB->setChecked(TRUE); +/* QMessageBox::information(this, "Information", "Swapfile is active!"); */ + setStatusMessage(tr("Swapfile activated.")); + } + i=strcmp(swapfile, "/mnt/cf/swapfile"); + if ( i == 0 ) { + cfRB->setChecked(TRUE); +/* QMessageBox::information(this, "Information", "Swapfile is active!"); */ + setStatusMessage(tr("Swapfile activated.")); + } + i=strcmp(swapfile, "/usr/mnt.rom/card/swapfile"); + if ( i == 0 ) { + sdRB->setChecked(TRUE); +/* QMessageBox::information(this, "Information", "Swapfile is active!"); */ + setStatusMessage(tr("Swapfile activated.")); + } + i=strcmp(swapfile, "/mnt/card/swapfile"); + if ( i == 0 ) { + sdRB->setChecked(TRUE); +/* QMessageBox::information(this, "Information", "Swapfile is active!"); */ + setStatusMessage(tr("Swapfile activated.")); + } + + Swapfile::cfsdchecked(); + + + swapsize /=1000; + + switch ( swapsize ) { + case 2: swapSize->setCurrentItem(0); + break; + case 4: swapSize->setCurrentItem(1); + break; + case 6: swapSize->setCurrentItem(2); + break; + case 8: swapSize->setCurrentItem(3); + break; + } + + +} + + |