File indexing completed on 2024-05-19 04:49:32

0001 /****************************************************************************************
0002  * Copyright (c) 2013 Matěj Laitl <matej@laitl.cz>                                      *
0003  *                                                                                      *
0004  * This program is free software; you can redistribute it and/or modify it under        *
0005  * the terms of the GNU General Public License as published by the Free Software        *
0006  * Foundation; either version 2 of the License, or (at your option) any later           *
0007  * version.                                                                             *
0008  *                                                                                      *
0009  * This program is distributed in the hope that it will be useful, but WITHOUT ANY      *
0010  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A      *
0011  * PARTICULAR PURPOSE. See the GNU General Public License for more details.             *
0012  *                                                                                      *
0013  * You should have received a copy of the GNU General Public License along with         *
0014  * this program.  If not, see <http://www.gnu.org/licenses/>.                           *
0015  ****************************************************************************************/
0016 
0017 #ifndef SEMAPHORERELEASER_H
0018 #define SEMAPHORERELEASER_H
0019 
0020 #include "core/amarokcore_export.h"
0021 #include <QObject>
0022 class QSemaphore;
0023 
0024 /**
0025  * Helper RAII class that releases passed QSemaphore upon deletion. Similar to
0026  * QMutexLocker.
0027  */
0028 class AMAROKCORE_EXPORT SemaphoreReleaser
0029 {
0030     public:
0031         explicit SemaphoreReleaser( QSemaphore *semaphore );
0032         ~SemaphoreReleaser();
0033 
0034         /**
0035          * Tell SemaphoreReleaser not to release the semaphore upon deletion.
0036          */
0037         void dontRelease();
0038 
0039     private:
0040         Q_DISABLE_COPY( SemaphoreReleaser )
0041 
0042         QSemaphore *m_semaphore;
0043 };
0044 
0045 
0046 #endif // SEMAPHORERELEASER_H