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src/libtomahawk/thirdparty/kdsingleapplicationguard/kdsharedmemorylocker.cpp

 

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#include "kdsharedmemorylocker.h"

 

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#if QT_VERSION >= 0x040400 || defined( DOXYGEN_RUN )

 

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#include <QSharedMemory>

 

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using namespace kdtools;

 

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/*!

 

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  \class KDSharedMemoryLocker

 

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  \ingroup raii core

 

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  \brief Exception-safe and convenient wrapper around QSharedMemory::lock()

 

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*/

 

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/**

 

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 * Constructor. Locks the shared memory segment \a mem.

 

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 * If another process has locking the segment, this constructor blocks

 

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 * until the lock is released. The memory segments needs to be properly created or attached.

 

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 */

 

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KDSharedMemoryLocker::KDSharedMemoryLocker( QSharedMemory* mem )

 

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    : mem( mem )

 

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{

 

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    mem->lock();

 

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}

 

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/**

 

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 * Destructor. Unlocks the shared memory segment associated with this

 

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 * KDSharedMemoryLocker.

 

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 */

 

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KDSharedMemoryLocker::~KDSharedMemoryLocker()

 

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{

 

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    mem->unlock();

 

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}

 

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#ifdef KDAB_EVAL

 

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#include KDAB_EVAL

 

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static const EvalDialogChecker evalChecker( "KD Tools", false );

 

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#endif

 

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#endif

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