2014-05-18 15:52:39 +00:00
|
|
|
#ifndef INCLUDE_SPINLOCK_H
|
|
|
|
#define INCLUDE_SPINLOCK_H
|
|
|
|
|
|
|
|
#include <QAtomicInt>
|
|
|
|
|
2018-03-03 19:23:38 +00:00
|
|
|
#include "util/export.h"
|
|
|
|
|
|
|
|
class SDRBASE_API Spinlock {
|
2014-05-18 15:52:39 +00:00
|
|
|
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
|