spinlock.h

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#ifndef INCLUDE_SPINLOCK_H
#define INCLUDE_SPINLOCK_H

#include <QAtomicInt>

#include "export.h"

class SDRBASE_API Spinlock {
public:
    void lock()
    {
        while(!m_atomic.testAndSetAcquire(0, 1)) ;
    }

    void unlock()
    {
        while(!m_atomic.testAndSetRelease(1, 0)) ;
    }

protected:
    QAtomicInt m_atomic;
};

class SpinlockHolder {
public:
    SpinlockHolder(Spinlock* spinlock) :
        m_spinlock(spinlock)
    {
        m_spinlock->lock();
    }

    ~SpinlockHolder()
    {
        m_spinlock->unlock();
    }

protected:
    Spinlock* m_spinlock;
};

#endif // INCLUDE_SPINLOCK_H