CNObject.h

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#ifndef CNOBJECT_H
#define CNOBJECT_H

#include "CNResource.h"
#include "CNForwarders.h"
#include <stdlib.h>
#include <assert.h>

static const unsigned long    CNReferenceCountForStaticObject = ((unsigned long) -1) ;

typedef void (*CNDeallocateObjectFuncRef)(struct CNObject * dst) ;

struct CNObjectMethods
{
    CNDeallocateObjectFuncRef   deallocFuncRef ;
} ;

struct CNObject
{
    unsigned long                       referenceCount ;
    size_t                              sizeOfObject ;
    struct CNResource *                 resource ;
    const struct CNObjectMethods *      methods ;
} ;

static inline struct CNObject *
CNAllocateObject(size_t size, const struct CNObjectMethods * methods, struct CNResource * resource)
{
    assert(size>0 && methods != NULL && resource != NULL) ;
    struct CNObject * newobj = CNAllocateData(resource, size) ;
    newobj->referenceCount = 1 ;
    newobj->sizeOfObject = size ;
    newobj->resource = resource ;
    newobj->methods = methods ;
    return newobj ;
}

static inline void
CNRetainObject(struct CNObject * dst)
{
    if(dst->referenceCount != CNReferenceCountForStaticObject){
        (dst->referenceCount)++ ;
    }
}

void
CNReleaseObject(struct CNObject * dst) ;

static inline struct CNResource *
CNResourceOfObject(struct CNObject * src)
{
    return src->resource ;
}

static inline const struct CNObjectMethods *
CNMethodsOfObject(const struct CNObject * src)
{
        return src->methods ;
}

static inline size_t
CNSizeOfObject(const struct CNObject * src)
{
        return src->sizeOfObject ;
}

#endif  /* CNOBJECT_H */