vl_atomic_ptr.h

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#ifndef VL_ATOMIC_PTR_H
#define VL_ATOMIC_PTR_H
 
#include "vl_atomic.h"
 
typedef struct vl_tagged_ptr {
    vl_uintptr_t ptr;
    vl_ularge_t  tag;
} vl_tagged_ptr;
 
typedef VL_ATOMIC vl_tagged_ptr vl_atomic_ptr;
 
extern const vl_tagged_ptr VL_TAGPTR_NULL;
 
#define vlAtomicPtrInit(atPtr, valPtr) vlAtomicInit((atPtr), valPtr);
 
static inline void vlAtomicPtrStore(vl_atomic_ptr* atomicPtr, void* ptr){
    vl_tagged_ptr pV = vlAtomicLoad(atomicPtr);
 
    pV.ptr = (vl_uintptr_t)ptr;
    pV.tag++;
 
    vlAtomicStore(atomicPtr, pV);
}
 
static inline vl_bool_t vlAtomicPtrCompareExchangeStrongExplicit(vl_atomic_ptr* atPtr, vl_tagged_ptr* expected, const void* newValue, vl_memory_order_t trueOrder, vl_memory_order_t falseOrder){
   vl_tagged_ptr result = *expected;
   result.ptr = (vl_uintptr_t)newValue;
   result.tag++;
   return vlAtomicCompareExchangeStrongExplicit(atPtr, expected, result, trueOrder, falseOrder);
}
 
static inline vl_bool_t vlAtomicPtrCompareExchangeWeakExplicit(vl_atomic_ptr* atPtr, vl_tagged_ptr* expected, const void* newValue, vl_memory_order_t trueOrder, vl_memory_order_t falseOrder){
    vl_tagged_ptr result = *expected;
    result.ptr = (vl_uintptr_t)newValue;
    result.tag++;
    return vlAtomicCompareExchangeWeakExplicit(atPtr, expected, result, trueOrder, falseOrder);
}
 
#define vlAtomicPtrCompareExchangeStrong(atPtr, atPtrExpected, valPtr)\
    vlAtomicPtrCompareExchangeStrongExplicit(atPtr, atPtrExpected, valPtr, VL_MEMORY_ORDER_SEQ_CST, VL_MEMORY_ORDER_SEQ_CST)
 
#define vlAtomicPtrCompareExchangeWeak(atPtr, atPtrExpected, valPtr)\
    vlAtomicPtrCompareExchangeWeakExplicit(atPtr, atPtrExpected, valPtr, VL_MEMORY_ORDER_SEQ_CST, VL_MEMORY_ORDER_SEQ_CST)
 
#endif //VL_ATOMIC_PTR_H