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40 lines
510 B
C++
40 lines
510 B
C++
#ifndef INCLUDE_SPINLOCK_H
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#define INCLUDE_SPINLOCK_H
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#include <QAtomicInt>
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class Spinlock {
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public:
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void lock()
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{
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while(!m_atomic.testAndSetAcquire(0, 1)) ;
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}
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void unlock()
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{
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while(!m_atomic.testAndSetRelease(1, 0)) ;
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}
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protected:
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QAtomicInt m_atomic;
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};
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class SpinlockHolder {
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public:
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SpinlockHolder(Spinlock* spinlock) :
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m_spinlock(spinlock)
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{
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m_spinlock->lock();
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}
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~SpinlockHolder()
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{
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m_spinlock->unlock();
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}
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protected:
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Spinlock* m_spinlock;
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};
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#endif // INCLUDE_SPINLOCK_H
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