File indexing completed on 2024-05-12 04:51:02

 /*
     SPDX-FileCopyrightText: 2010 Michal Malek <michalm@jabster.pl>
     SPDX-FileCopyrightText: 1998-2010 Sebastian Trueg <trueg@k3b.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "k3baudiozerodatareader.h"
 #include "k3baudiozerodata.h"
 
 #include <cstring>
 
 namespace K3b {
 
 
 class AudioZeroDataReader::Private
 {
 public:
     Private( AudioZeroData& s )
         : source( s )
     {
     }
 
     AudioZeroData& source;
 };
 
 
 AudioZeroDataReader::AudioZeroDataReader( AudioZeroData& source, QObject* parent )
     : QIODevice( parent ),
       d( new Private( source ) )
 {
 }
 
 
 AudioZeroDataReader::~AudioZeroDataReader()
 {
     close();
 }
 
 
 bool AudioZeroDataReader::open( QIODevice::OpenMode mode )
 {
     if( !mode.testFlag( QIODevice::WriteOnly ) ) {
         return QIODevice::open( mode );
     }
     else {
         return false;
     }
 }
 
 
 bool AudioZeroDataReader::isSequential() const
 {
     return false;
 }
 
 
 qint64 AudioZeroDataReader::size() const
 {
     return d->source.length().audioBytes();
 }
 
 
 qint64 AudioZeroDataReader::writeData( const char* /*data*/, qint64 /*len*/ )
 {
     return -1;
 }
 
 
 qint64 AudioZeroDataReader::readData( char* data, qint64 maxlen )
 {
     if( pos() + maxlen > size() )
         maxlen = size() - pos();
 
     ::memset( data, 0, maxlen );
 
     return maxlen;
 }
 
 } // namespace K3b