DatabaseTransaction::~DatabaseTransaction()
{
if (m_access)
{
m_access->backend()->commitTransaction();
}
else
{
DatabaseAccess access;
access.backend()->commitTransaction();
}
}
void ScanController::run()
{
while (d->running)
{
bool doInit = false, doScan = false, doPartialScan = false, doUpdateUniqueHash = false;
QString task;
{
QMutexLocker lock(&d->mutex);
if (d->needsInitialization)
{
d->needsInitialization = false;
doInit = true;
}
else if (d->needsCompleteScan)
{
d->needsCompleteScan = false;
doScan = true;
}
else if (d->needsUpdateUniqueHash)
{
d->needsUpdateUniqueHash = false;
doUpdateUniqueHash = true;
}
else if (!d->scanTasks.isEmpty() && !d->scanSuspended)
{
doPartialScan = true;
task = d->scanTasks.takeFirst();
}
else
{
d->idle = true;
d->condVar.wait(&d->mutex);
d->idle = false;
}
}
if (doInit)
{
d->continueInitialization = true;
// pass "this" as InitializationObserver
bool success = DatabaseAccess::checkReadyForUse(this);
// If d->advice has not been adjusted to a value indicating failure, do this here
if (!success && d->advice == Success)
{
d->advice = ContinueWithoutDatabase;
}
emit databaseInitialized(success);
}
else if (doScan)
{
CollectionScanner scanner;
connectCollectionScanner(&scanner);
scanner.setNeedFileCount(d->needTotalFiles);
scanner.recordHints(d->albumHints);
scanner.recordHints(d->itemHints);
scanner.recordHints(d->itemChangeHints);
SimpleCollectionScannerObserver observer(&d->continueScan);
scanner.setObserver(&observer);
scanner.completeScan();
emit completeScanDone();
}
else if (doPartialScan)
{
CollectionScanner scanner;
scanner.recordHints(d->albumHints);
scanner.recordHints(d->itemHints);
scanner.recordHints(d->itemChangeHints);
//connectCollectionScanner(&scanner);
SimpleCollectionScannerObserver observer(&d->continuePartialScan);
scanner.setObserver(&observer);
scanner.partialScan(task);
}
else if (doUpdateUniqueHash)
{
DatabaseAccess access;
SchemaUpdater updater(access.db(), access.backend(), access.parameters());
updater.setDatabaseAccess(&access);
updater.setObserver(this);
updater.updateUniqueHash();
emit completeScanDone();
}
}
}
DatabaseTransaction::DatabaseTransaction()
: m_access(0)
{
DatabaseAccess access;
access.backend()->beginTransaction();
}