File indexing completed on 2024-05-05 04:48:50

 /****************************************************************************************
  * Copyright (c) 2003-2008 Mark Kretschmann <kretschmann@kde.org>                       *
  * Copyright (c) 2007 Maximilian Kossick <maximilian.kossick@googlemail.com>            *
  * Copyright (c) 2007 Casey Link <unnamedrambler@gmail.com>                             *
  * Copyright (c) 2008-2009 Jeff Mitchell <mitchell@kde.org>                             *
  * Copyright (c) 2010-2011 Ralf Engels <ralf-engels@gmx.de>                             *
  * Copyright (c) 2011 Bart Cerneels <bart.cerneels@kde.org>                             *
  * Copyright (c) 2013 Ralf Engels <ralf-engels@gmx.de>                                  *
  *                                                                                      *
  * This program is free software; you can redistribute it and/or modify it under        *
  * the terms of the GNU General Public License as published by the Free Software        *
  * Foundation; either version 2 of the License, or (at your option) any later           *
  * version.                                                                             *
  *                                                                                      *
  * This program is distributed in the hope that it will be useful, but WITHOUT ANY      *
  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A      *
  * PARTICULAR PURPOSE. See the GNU General Public License for more details.             *
  *                                                                                      *
  * You should have received a copy of the GNU General Public License along with         *
  * this program.  If not, see <http://www.gnu.org/licenses/>.                           *
  ****************************************************************************************/
 
 #define DEBUG_PREFIX "GenericScanManager"
 
 #include "GenericScanManager.h"
 
 #include "core/support/Debug.h"
 #include "scanner/GenericScannerJob.h"
 
 #include <ThreadWeaver/Queue>
 
 #include <QFileInfo>
 #include <QSharedPointer>
 
 GenericScanManager::GenericScanManager( QObject *parent )
     : QObject( parent )
 {
     qRegisterMetaType<GenericScanManager::ScanType>( "GenericScanManager::ScanType" );
     qRegisterMetaType<QSharedPointer<CollectionScanner::Directory> >( "QSharedPointer<CollectionScanner::Directory>" );
 }
 
 GenericScanManager::~GenericScanManager()
 {
     abort();
 }
 
 bool
 GenericScanManager::isRunning()
 {
     QMutexLocker locker( &m_mutex );
     return m_scannerJob;
 }
 
 QString
 GenericScanManager::getBatchFile( const QStringList& scanDirsRequested )
 {
     Q_UNUSED( scanDirsRequested );
     return QString();
 }
 
 void
 GenericScanManager::requestScan( QList<QUrl> directories, ScanType type )
 {
     DEBUG_BLOCK;
 
     QMutexLocker locker( &m_mutex );
     if( m_scannerJob )
     {
         //TODO: add to queue requests
         error() << "Scanner already running, not starting another instance.";
         return;
     }
 
     QSet<QString> scanDirsSet;
     foreach( const QUrl &url, directories )
     {
         if( !url.isLocalFile() )
         {
             warning() << "scan of non-local directory" << url << "requested, skipping it.";
             continue;
         }
 
         QString path = url.adjusted(QUrl::StripTrailingSlash).path();
         if( !QFileInfo( path ).isDir() )
         {
             warning() << "scan of a non-directory" << path << "requested, skipping it.";
             continue;
         }
         //TODO: most local path
 
         scanDirsSet << path;
     }
 
     // we cannot skip the scan even for empty scanDirsSet and non-partial scan, bug 316216
     if( scanDirsSet.isEmpty() && type == PartialUpdateScan )
         return; // nothing to do
 
     auto scannerJob = QSharedPointer<GenericScannerJob>( new GenericScannerJob( this, scanDirsSet.values(), type ) );
     m_scannerJob = scannerJob.toWeakRef();
     connectSignalsToJob();
     ThreadWeaver::Queue::instance()->enqueue( scannerJob );
 }
 
 void
 GenericScanManager::requestImport( QIODevice *input, ScanType type )
 {
     QMutexLocker locker( &m_mutex );
     if( m_scannerJob )
     {
         //TODO: add to queue requests
         error() << "Scanner already running";
         return;
     }
 
     auto scannerJob = QSharedPointer<GenericScannerJob>( new GenericScannerJob( this, input, type ) );
     m_scannerJob = scannerJob.toWeakRef();
     connectSignalsToJob();
     ThreadWeaver::Queue::instance()->enqueue( scannerJob );
 }
 
 void
 GenericScanManager::abort()
 {
     QMutexLocker locker( &m_mutex );
 
     auto scannerJob = m_scannerJob.toStrongRef();
     if( scannerJob )
         scannerJob->abort();
 }
 
 void
 GenericScanManager::connectSignalsToJob()
 {
     auto scannerJobPointer = m_scannerJob.toStrongRef();
     if( scannerJobPointer ) {
         auto scannerJob = scannerJobPointer.data();
         // we used to have direct connections here, but that caused too much work being done
         // in the non-main thread, even in code that wasn't thread-safe, which lead to
         // crashes (bug 319835) and other potential data races
         connect( scannerJob, QOverload<ScanType>::of(&GenericScannerJob::started),
                  this, &GenericScanManager::started );
         connect( scannerJob, &GenericScannerJob::directoryCount,
                  this, &GenericScanManager::directoryCount);
         connect( scannerJob, &GenericScannerJob::directoryScanned,
                  this, &GenericScanManager::directoryScanned );
         connect( scannerJob, &GenericScannerJob::succeeded,
                  this, &GenericScanManager::succeeded );
         connect( scannerJob, QOverload<QString>::of(&GenericScannerJob::failed),
                  this, &GenericScanManager::failed );
     }
 }