Muldersoft/MediaInfoXP
Muldersoft/MediaInfoXP
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Create a lock file in Temp folder, so it cannot be deleted before MediaInfo is extracted.

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This commit is contained in:
LoRd_MuldeR 2013-05-21 01:22:35 +02:00
parent 831c0e07e5
commit d4f7e96578
2 changed files with 24 additions and 11 deletions
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31
src/Main.cpp
View File

@ -150,12 +150,13 @@ QString mixp_getAppDataFolder(void)
return folder;
}
QString mixp_getTempFolder()
QString mixp_getTempFolder(QFile **lockfile)
{
*lockfile = NULL;
QString tempFolder;
static const char *TEMP_STR = "Temp";
const QString WRITE_TEST_DATA = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.";
const QByteArray WRITE_TEST_DATA = QByteArray("Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.");
const QString SUB_FOLDER = QUuid::createUuid().toString();
//Try the %TMP% or %TEMP% directory first
@ -165,14 +166,16 @@ QString mixp_getTempFolder()
temp.mkdir(SUB_FOLDER);
if(temp.cd(SUB_FOLDER) && temp.exists())
{
QFile testFile(QString("%1/~test.tmp").arg(temp.canonicalPath()));
if(testFile.open(QIODevice::ReadWrite))
QFile *testFile = new QFile(QString("%1/~lock.tmp").arg(temp.canonicalPath()));
if(testFile->open(QIODevice::WriteOnly | QIODevice::Truncate | QIODevice::Unbuffered))
{
if(testFile.write(WRITE_TEST_DATA.toLatin1().constData()) >= strlen(WRITE_TEST_DATA.toLatin1().constData()))
if(testFile->write(WRITE_TEST_DATA) >= WRITE_TEST_DATA.size())
{
*lockfile = testFile; testFile = NULL;
tempFolder = temp.canonicalPath();
}
testFile.remove();
if(testFile) testFile->remove();
MIXP_DELETE_OBJ(testFile);
}
}
if(!tempFolder.isEmpty())
@ -200,14 +203,16 @@ QString mixp_getTempFolder()
localAppData.mkdir(SUB_FOLDER);
if(localAppData.cd(SUB_FOLDER) && localAppData.exists())
{
QFile testFile(QString("%1/~test.tmp").arg(localAppData.canonicalPath()));
if(testFile.open(QIODevice::ReadWrite))
QFile *testFile = new QFile(QString("%1/~lock.tmp").arg(localAppData.canonicalPath()));
if(testFile->open(QIODevice::WriteOnly | QIODevice::Truncate | QIODevice::Unbuffered))
{
if(testFile.write(WRITE_TEST_DATA.toLatin1().constData()) >= strlen(WRITE_TEST_DATA.toLatin1().constData()))
if(testFile->write(WRITE_TEST_DATA) >= WRITE_TEST_DATA.size())
{
*lockfile = testFile; testFile = NULL;
tempFolder = localAppData.canonicalPath();
}
testFile.remove();
if(testFile) testFile->remove();
MIXP_DELETE_OBJ(testFile);
}
}
}
@ -268,8 +273,10 @@ int mixp_main(int argc, char* argv[])
qDebug("Copyright (c) 2004-%s LoRd_MuldeR <mulder2@gmx.de>. Some rights reserved.", &mixp_buildDate[7]);
qDebug("Built with Qt v%s, running with Qt v%s.\n", QT_VERSION_STR, qVersion());
QFile *lockFile = NULL;
//Get temp folder
const QString tempFolder = mixp_getTempFolder();
const QString tempFolder = mixp_getTempFolder(&lockFile);
qDebug("TEMP folder is:\n%s\n", QDir::toNativeSeparators(tempFolder).toUtf8().constData());
//Create application
@ -287,6 +294,8 @@ int mixp_main(int argc, char* argv[])
//Clean up
MIXP_DELETE_OBJ(mainWindow);
MIXP_DELETE_OBJ(application);
if(lockFile) lockFile->remove();
MIXP_DELETE_OBJ(lockFile);
mixp_clean_folder(tempFolder);
return exit_code;

4
src/MainWindow.cpp
View File

@ -579,6 +579,10 @@ bool CMainWindow::analyzeFile(const QString &filePath)
if(mediaInfoPath.isEmpty())
{
QMessageBox::critical(this, tr("Failure"), tr("Error: Failed to extract MediaInfo binary!"), QMessageBox::Ok);
m_floatingLabel->hide();
ui->actionOpen->setEnabled(true);
ui->analyzeButton->setEnabled(true);
ui->exitButton->setEnabled(true);
return false;
}