Add System.h/System.cpp -> to be adapted later
This commit is contained in:
647
common/src/System.cpp
Normal file
647
common/src/System.cpp
Normal file
@@ -0,0 +1,647 @@
|
||||
#include "System.h"
|
||||
#include <QFile>
|
||||
#include <QFileInfo>
|
||||
#include <QDir>
|
||||
#include <QTextStream>
|
||||
#include <QProcess>
|
||||
#include <QRegExp>
|
||||
#include <QStringList>
|
||||
#include <QDebug>
|
||||
|
||||
//#include "version.h"
|
||||
|
||||
|
||||
QString System::errorMsg = "";
|
||||
|
||||
System::System(QObject *parent) :
|
||||
QObject(parent)
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
/********************************************************************************
|
||||
* static function to return error message.
|
||||
*
|
||||
*/
|
||||
QString System::getErrorMessage()
|
||||
{
|
||||
return errorMsg;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/********************************************************************************
|
||||
* static function to check if a writable SD-card is in the cardslot.
|
||||
*
|
||||
* This function only checks a certain path or a mount entry. It does not mount
|
||||
* a SD-card, this must be provided by the OS (automounter).
|
||||
*
|
||||
* returns 1 if a SD-card is available, 0 otherwise.
|
||||
*/
|
||||
bool System::checkForSDCard()
|
||||
{
|
||||
#if defined (ARCH_DesktopLinux)
|
||||
// DEBUG / TEST:
|
||||
return true;
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
if (!test_mount(getSDCardDeviceName(), getSDCardMountPath())) {
|
||||
qDebug() << "check for SD-card failed: \n"
|
||||
<< " device name is: " << getSDCardDeviceName()
|
||||
<< " mount path is: " << getSDCardMountPath();
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
/********************************************************************************
|
||||
* static function for umount sd-card.
|
||||
*
|
||||
*/
|
||||
bool System::umountSDCard()
|
||||
{
|
||||
#if defined (ARCH_DesktopLinux)
|
||||
// DEBUG / TEST:
|
||||
return true;
|
||||
#endif
|
||||
|
||||
QProcess process;
|
||||
process.setProcessChannelMode(QProcess::MergedChannels);
|
||||
|
||||
QString commandString = "umount " + getSDCardMountPath();
|
||||
|
||||
process.start(commandString);
|
||||
if (!process.waitForStarted()) {
|
||||
errorMsg = "System::umountSDCard(): ERROR: waitForStarted()";
|
||||
return false;
|
||||
}
|
||||
if (!process.waitForFinished(600000)) {
|
||||
errorMsg = "System::umountSDCard(): ERROR: " + process.errorString();
|
||||
qDebug() << errorMsg;
|
||||
return false;
|
||||
}
|
||||
else {
|
||||
QByteArray bytes = process.readAll();
|
||||
QStringList lines = QString(bytes).split("\n");
|
||||
foreach (QString line, lines) {
|
||||
qDebug() << "System::umountSDCard() line: " << line;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/********************************************************************************
|
||||
* static function for umount usb-stick.
|
||||
*
|
||||
*/
|
||||
bool System::umountUSBStick()
|
||||
{
|
||||
#if defined (ARCH_DesktopLinux)
|
||||
// DEBUG / TEST:
|
||||
return true;
|
||||
#endif
|
||||
|
||||
QProcess process;
|
||||
process.setProcessChannelMode(QProcess::MergedChannels);
|
||||
|
||||
QString commandString = "umount " + getUSBMountPath();
|
||||
|
||||
process.start(commandString);
|
||||
if (!process.waitForStarted()) {
|
||||
errorMsg = "System::umountUSBStick(): ERROR: waitForStarted()";
|
||||
return false;
|
||||
}
|
||||
if (!process.waitForFinished(600000)) {
|
||||
errorMsg = "System::umountUSBStick(): ERROR: " + process.errorString();
|
||||
qDebug() << errorMsg;
|
||||
return false;
|
||||
}
|
||||
else {
|
||||
QByteArray bytes = process.readAll();
|
||||
QStringList lines = QString(bytes).split("\n");
|
||||
foreach (QString line, lines) {
|
||||
qDebug() << "System::umountUSBStick() line: " << line;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*****************************************************************************
|
||||
* test, if a certain device is already mounted
|
||||
*
|
||||
* e.g. a mounted SD-card on PTU4:
|
||||
* - device is '/dev/mmcblk0p1'
|
||||
* - mount path is '/media/mmcblk0p1'
|
||||
*
|
||||
* e.g. a mounted USB-Stick on PTU4:
|
||||
* - device is '/dev/sda'
|
||||
* - mount path is '/media/sda'
|
||||
*/
|
||||
bool System::test_mount(const QString& dev, const QString& mountpoint)
|
||||
{
|
||||
bool mounted = false;
|
||||
QProcess process;
|
||||
process.setProcessChannelMode(QProcess::MergedChannels);
|
||||
|
||||
qDebug() << "System::test_mount() dev = " << dev;
|
||||
qDebug() << "System::test_mount() mountpoint = " << mountpoint;
|
||||
|
||||
//normalize mountpoint: (mountpoint is without trailing '/')
|
||||
QString tmp_mountpoint = QString(mountpoint).remove(QRegExp("/*$"));
|
||||
|
||||
QString commandString = "mount";
|
||||
|
||||
process.start(commandString);
|
||||
if (!process.waitForStarted()) {
|
||||
errorMsg = "System::test_mount(): ERROR: waitForStarted()";
|
||||
return false;
|
||||
}
|
||||
if (!process.waitForFinished(600000)) {
|
||||
errorMsg = "System::test_mount(): ERROR: " + process.errorString();
|
||||
qDebug() << errorMsg;
|
||||
return false;
|
||||
}
|
||||
else {
|
||||
QByteArray bytes = process.readAll();
|
||||
QStringList lines = QString(bytes).split("\n");
|
||||
foreach (QString line, lines) {
|
||||
//qDebug() << "System::test_mount() line: " << line;
|
||||
|
||||
//if (line.contains(dev)) qDebug() << "System::test_mount() line contains dev";
|
||||
//if (line.contains(tmp_mountpoint)) qDebug() << "System::test_mount() line contains mountpoint";
|
||||
|
||||
if (line.contains(dev) && line.contains(tmp_mountpoint)) {
|
||||
qDebug() << "System::test_mount(): " << dev << " is mounted on " << tmp_mountpoint;
|
||||
mounted = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
return mounted;
|
||||
}
|
||||
|
||||
|
||||
/*****************************************************************************
|
||||
* test, if a certain directory is existing and readable
|
||||
*/
|
||||
bool System::test_dir(const QString& dir)
|
||||
{
|
||||
QFileInfo fileInfo(dir);
|
||||
if (! fileInfo.isDir() ) { return false; }
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
|
||||
bool System::checkForUSBStick()
|
||||
{
|
||||
#if defined (ARCH_DesktopLinux)
|
||||
// DEBUG / TEST:
|
||||
if (QFileInfo(getUSBMountPath()).isDir())
|
||||
return true;
|
||||
else
|
||||
return false;
|
||||
#endif
|
||||
|
||||
if (getUSBMountPath().isEmpty()) {
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* @brief SupportSystem::getUSBMountPath
|
||||
* @return path where a USB storage device is mounted.
|
||||
*
|
||||
* Note, do not return an empty string ("") here because a calling method (which could not be
|
||||
* identified till now) is relying on this!
|
||||
*/
|
||||
QString System::getUSBMountPath()
|
||||
{
|
||||
|
||||
#if defined (ARCH_DesktopLinux)
|
||||
// DEBUG / TEST:
|
||||
return QDir::homePath().append("/APconfigTest/USB");
|
||||
#endif
|
||||
|
||||
QProcess process;
|
||||
process.setProcessChannelMode(QProcess::MergedChannels);
|
||||
|
||||
QStringList mountLine;
|
||||
|
||||
qDebug() << "System::getUSBMountPath()";
|
||||
|
||||
QRegExp devRegExp = QRegExp("dev/sd*", Qt::CaseSensitive, QRegExp::WildcardUnix);
|
||||
QRegExp mountRegExp = QRegExp("media/sd*", Qt::CaseSensitive, QRegExp::WildcardUnix);
|
||||
|
||||
QString commandString = "mount";
|
||||
|
||||
process.start(commandString);
|
||||
if (!process.waitForStarted()) {
|
||||
errorMsg = "System::getUSBMountPath(): ERROR: waitForStarted()";
|
||||
return "";
|
||||
}
|
||||
if (!process.waitForFinished(600000)) {
|
||||
errorMsg = "System::getUSBMountPath(): ERROR: " + process.errorString();
|
||||
qDebug() << errorMsg;
|
||||
return "";
|
||||
}
|
||||
else {
|
||||
QByteArray bytes = process.readAll();
|
||||
QStringList lines = QString(bytes).split("\n");
|
||||
foreach (QString line, lines) {
|
||||
qDebug() << "System::getUSBMountPath() line: " << line;
|
||||
|
||||
if (line.contains(devRegExp) && line.contains(mountRegExp)) {
|
||||
|
||||
qDebug() << " -> this line is a usb storage device mount" << line;
|
||||
|
||||
mountLine = line.split(' ');
|
||||
if (mountLine.size() > 3) {
|
||||
qDebug() << "System::getUSBMountPath(): " << mountLine.at(0) << " is mounted on " << mountLine.at(2);
|
||||
return mountLine.at(2);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
qDebug() << "System::getUSBMountPath() no mounted usb device found!";
|
||||
|
||||
return "";
|
||||
}
|
||||
|
||||
|
||||
/********************************************************************************
|
||||
* static function to check if a mounted sd-card is writable.
|
||||
*
|
||||
* Note: the caller must ensure (e.g. by calling checkForSDCard()) that a
|
||||
* sd-card is mounted.
|
||||
*
|
||||
*/
|
||||
bool System::isSDCardWritable()
|
||||
{
|
||||
QFileInfo fi(getSDCardMountPath());
|
||||
|
||||
if(fi.isDir() && fi.isWritable()) {
|
||||
return true;
|
||||
}
|
||||
else
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/********************************************************************************
|
||||
* static function to check if a mounted usb-stick is writable.
|
||||
*
|
||||
* Note: the caller must ensure (e.g. by calling checkForUSBStick()) that a
|
||||
* usb-stick is mounted.
|
||||
*
|
||||
*/
|
||||
bool System::isUSBStickWritable()
|
||||
{
|
||||
QFileInfo fi(getUSBMountPath());
|
||||
|
||||
if(fi.isDir() && fi.isWritable()) {
|
||||
return true;
|
||||
}
|
||||
else
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/********************************************************************************
|
||||
* wrapper function for getting free space on a sd-card on ptu
|
||||
*
|
||||
*/
|
||||
quint32 System::getFreeDiskSpaceSDCard()
|
||||
{
|
||||
#if defined (ARCH_DesktopLinux)
|
||||
return getFreeDiskSpace("/home/siegert/server1home");
|
||||
#endif
|
||||
return getFreeDiskSpace(getSDCardMountPath());
|
||||
}
|
||||
|
||||
|
||||
/********************************************************************************
|
||||
* wrapper function for getting free space on a usb storage device on ptu
|
||||
*
|
||||
*/
|
||||
quint32 System::getFreeDiskSpaceUSBStick()
|
||||
{
|
||||
#if defined (ARCH_DesktopLinux)
|
||||
return getFreeDiskSpace("/home/siegert/server1home");
|
||||
#endif
|
||||
return getFreeDiskSpace(getUSBMountPath());
|
||||
}
|
||||
|
||||
|
||||
/********************************************************************************
|
||||
* static function to read free disk space
|
||||
*
|
||||
* example output of 'df' command on ptu:
|
||||
* # df
|
||||
* Filesystem 1K-blocks Used Available Use% Mounted on
|
||||
* ubi0:rootfs 111704 78940 32764 71% /
|
||||
* devtmpfs 62072 0 62072 0% /dev
|
||||
* tmpfs 62332 0 62332 0% /dev/shm
|
||||
* tmpfs 62332 416 61916 1% /tmp
|
||||
* tmpfs 62332 24 62308 1% /run
|
||||
* ubi0:data 222260 5892 216368 3% /opt
|
||||
* tmpfs 62332 0 62332 0% /media
|
||||
* /dev/mmcblk0p1 3878912 87360 3791552 3% /media/mmcblk0p1
|
||||
*
|
||||
* in this case, if we want to get the free space on the sd-card the methode should
|
||||
* be called:
|
||||
* getFreeDiskSpace("/dev/mmcblk0p1")
|
||||
* the result should be:
|
||||
* 3791552
|
||||
*
|
||||
*/
|
||||
quint32 System::getFreeDiskSpace(const QString& dev)
|
||||
{
|
||||
quint32 availableSpace = 0;
|
||||
QProcess process;
|
||||
process.setProcessChannelMode(QProcess::MergedChannels);
|
||||
|
||||
//qDebug() << "System::getFreeDiskSpace() dev = " << dev;
|
||||
|
||||
QString commandString = "df";
|
||||
|
||||
process.start(commandString);
|
||||
if (!process.waitForStarted()) {
|
||||
errorMsg = "System::getFreeDiskSpace(): ERROR: waitForStarted()";
|
||||
return availableSpace;
|
||||
}
|
||||
if (!process.waitForFinished(600000)) {
|
||||
errorMsg = "System::getFreeDiskSpace(): ERROR: " + process.errorString();
|
||||
qDebug() << errorMsg;
|
||||
return availableSpace;
|
||||
}
|
||||
else {
|
||||
QByteArray bytes = process.readAll();
|
||||
QStringList lines = QString(bytes).split("\n");
|
||||
foreach (QString line, lines) {
|
||||
//qDebug() << "System::getFreeDiskSpace() line: " << line;
|
||||
|
||||
|
||||
|
||||
if (line.contains(dev)) {
|
||||
//qDebug() << "System::getFreeDiskSpace() line contains dev";
|
||||
|
||||
QStringList processResultLine = line.split(' ', QString::SkipEmptyParts);
|
||||
if (processResultLine.size() >= 4) {
|
||||
bool ok;
|
||||
availableSpace = processResultLine.at(3).toLong(&ok);
|
||||
if (!ok) {
|
||||
return 0;
|
||||
}
|
||||
qDebug() << "System::getFreeDiskSpace() availableSpace = " << availableSpace;
|
||||
}
|
||||
else {
|
||||
return availableSpace;
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
return availableSpace;
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
/********************************************************************************
|
||||
* static function to create a backup of logfiles
|
||||
*
|
||||
* 'targzfile' is an absolute filename for ar tar.gz file wich will be created
|
||||
* 'filelistfile' is an absolute filename of a file containing all names of files
|
||||
* which should be backed up.
|
||||
*
|
||||
* returns:
|
||||
* 1 on success
|
||||
* 0 on failure
|
||||
*
|
||||
*/
|
||||
quint8 System::createLogFileBackup(const QString & targzfile, const QString &filelistfile)
|
||||
{
|
||||
QProcess process;
|
||||
process.setProcessChannelMode(QProcess::MergedChannels);
|
||||
|
||||
qDebug() << "System::createLogFileBackup() targzfile = " << targzfile;
|
||||
qDebug() << "System::createLogFileBackup() filelistfile = " << filelistfile;
|
||||
|
||||
QString commandString = "tar hczvf " + targzfile + " -T " + filelistfile;
|
||||
|
||||
qDebug() << "System::createLogFileBackup() tar command:" << commandString;
|
||||
|
||||
process.start(commandString);
|
||||
if (!process.waitForStarted()) {
|
||||
errorMsg = "System::createLogFileBackup(): ERROR: waitForStarted()";
|
||||
return 1;
|
||||
}
|
||||
if (!process.waitForFinished(600000)) {
|
||||
errorMsg = "System::createLogFileBackup(): ERROR: " + process.errorString();
|
||||
qDebug() << errorMsg;
|
||||
return 1;
|
||||
}
|
||||
else {
|
||||
// DEBUG
|
||||
//QByteArray bytes = process.readAll();
|
||||
//QStringList lines = QString(bytes).split("\n");
|
||||
//foreach (QString line, lines) {
|
||||
// qDebug() << "System::createLogFileBackup() line: " << line;
|
||||
//}
|
||||
}
|
||||
|
||||
QString resultMessage;
|
||||
QProcess::ExitStatus exitStatus = process.exitStatus();
|
||||
int exitCode = process.exitCode();
|
||||
|
||||
if (exitStatus == QProcess::CrashExit) {
|
||||
resultMessage = "local backup program crashed";
|
||||
qCritical() << resultMessage;
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
|
||||
/**
|
||||
* note for exit codes of process tar:
|
||||
* see: http://www.gnu.org/software/tar/manual/html_section/tar_19.html#Synopsis
|
||||
*
|
||||
* tar returns exitCode 2 if some files in logFileList could not be read (e.g. if they are not existing)
|
||||
* however, tar-archive is created although!
|
||||
* This means success for our needs!
|
||||
*/
|
||||
|
||||
if ( (exitCode != 0) && (exitCode != 2) && (exitStatus == QProcess::NormalExit) ) {
|
||||
resultMessage = "Local Backup file \"" + targzfile + "\" with exit code = " + QString::number(exitCode);
|
||||
qCritical() << resultMessage;
|
||||
return 1;
|
||||
}
|
||||
else {
|
||||
resultMessage = "Local Backup file \"" + targzfile + "\" was created successfully.";
|
||||
qCritical() << resultMessage;
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*****************************************************************************
|
||||
* get SD-card mount path.
|
||||
*/
|
||||
QString System::getSDCardMountPath()
|
||||
{
|
||||
#if defined (ARCH_PTU4)
|
||||
return "/media/mmcblk0p1";
|
||||
#elif defined (ARCH_PTU5)
|
||||
return "/media/mmcblk0p1";
|
||||
#elif defined (ARCH_DesktopLinux)
|
||||
// DEBUG / TEST:
|
||||
return "/home/siegert/APconfigTest";
|
||||
#endif
|
||||
return "";
|
||||
}
|
||||
|
||||
|
||||
/*****************************************************************************
|
||||
* get SD-card device name.
|
||||
*/
|
||||
QString System::getSDCardDeviceName()
|
||||
{
|
||||
#if defined (ARCH_PTU4)
|
||||
return "/dev/mmcblk0p1";
|
||||
#elif defined (ARCH_PTU5)
|
||||
return "/dev/mmcblk0p1";
|
||||
#elif defined (ARCH_DesktopLinux)
|
||||
return "/dev/sdf1";
|
||||
#endif
|
||||
return "";
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
/********************************************************************************
|
||||
* static function to build and return a unique device id.
|
||||
* This id consists currently only of the mac-address of network device eth0.
|
||||
*/
|
||||
QString System::getUniqueDeviceId()
|
||||
{
|
||||
QString filename = "/sys/class/net/eth0/address";
|
||||
QString result;
|
||||
|
||||
QFile file(filename);
|
||||
if(!file.open(QIODevice::ReadOnly)) {
|
||||
qCritical() << "System::getUniqueDeviceId() could not open file: " << filename;
|
||||
result = "0";
|
||||
}
|
||||
else {
|
||||
QTextStream in(&file);
|
||||
result = in.readLine(20);
|
||||
}
|
||||
|
||||
file.close();
|
||||
|
||||
result.remove(':');
|
||||
|
||||
return result;
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
QString System::readStringFromFile(const QString & filename)
|
||||
{
|
||||
#if defined (ARCH_PTU4)
|
||||
QFileInfo fileinfo(filename);
|
||||
#else
|
||||
QFileInfo fileinfo(QDir::homePath() + filename);
|
||||
#endif
|
||||
if (! fileinfo.isReadable() ) {
|
||||
qDebug() << "System::readStringFromFile(): \"" << filename << "\" is not readable";
|
||||
return "";
|
||||
}
|
||||
|
||||
#if defined (ARCH_PTU4)
|
||||
QFile file(filename);
|
||||
#else
|
||||
QFile file(QDir::homePath() + filename);
|
||||
#endif
|
||||
if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
|
||||
qDebug() << "System::readStringFromFile() cannot open file: " << filename;
|
||||
return "";
|
||||
}
|
||||
|
||||
QTextStream in(&file);
|
||||
|
||||
QString stringValue = in.readLine(100);
|
||||
qDebug() << "System::readStringFromFile() stringValue = " << stringValue;
|
||||
|
||||
file.close();
|
||||
|
||||
return stringValue;
|
||||
}
|
||||
|
||||
|
||||
int System::readIntFromFile(const QString & filename)
|
||||
{
|
||||
bool ok;
|
||||
int result = (int)readStringFromFile(filename).toInt(&ok);
|
||||
|
||||
if (!ok) {
|
||||
result = 0;
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* read ptu internal data
|
||||
*
|
||||
*/
|
||||
QString System::getPTU4SerialNumber()
|
||||
{
|
||||
return readStringFromFile("/sys/bus/i2c/devices/0-0050/SNO");
|
||||
}
|
||||
|
||||
QString System::getPTU4MACAddress()
|
||||
{
|
||||
return readStringFromFile("/sys/bus/i2c/devices/0-0050/MAC");
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user