In windows we have:

LONG volatile Mylock = 0;
InterlockedIncrement(&Mylock);
InterlockedDecrement(&Mylock);


What should these be replaced with for OSX  as in :

#ifndef MAC
LONG volatile Mylock = 0;
#else
 // Mac 
#endif


void SetLock()
{
//      EnterCriticalSection(&m_cs);
#ifndef MAC
        while(Mylock){Sleep(0);};               // Give up timeslice
        InterlockedIncrement(&Mylock);
#else
// Mac  
#endif
}


void FreeLock()
{
//      LeaveCriticalSection(&m_cs);
#ifndef MAC
        InterlockedDecrement(&Mylock);
#else
// Mac
#endif
}

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