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#ifndef DS_IUNK_H
#define DS_IUNK_H
#include "guids.h"
#define INHERIT_IUNKNOWN() \
long STDCALL ( *QueryInterface )(IUnknown * This, const GUID* riid, void **ppvObject); \
long STDCALL ( *AddRef )(IUnknown * This); \
long STDCALL ( *Release )(IUnknown * This);
#define DECLARE_IUNKNOWN() \
int refcount;
#define IMPLEMENT_IUNKNOWN(CLASSNAME) \
static long STDCALL CLASSNAME ## _QueryInterface(IUnknown * This, \
const GUID* riid, void **ppvObject) \
{ \
CLASSNAME * me = (CLASSNAME *)This; \
GUID* r; unsigned int i = 0; \
Debug printf(#CLASSNAME "_QueryInterface(%p) called\n", This);\
if (!ppvObject) return E_POINTER; \
for(r=me->interfaces; i<sizeof(me->interfaces)/sizeof(me->interfaces[0]); r++, i++) \
if(!memcmp(r, riid, sizeof(*r))) \
{ \
me->vt->AddRef((IUnknown*)This); \
*ppvObject=This; \
return 0; \
} \
Debug printf("Query failed! (GUID: 0x%x)\n", *(unsigned int*)riid); \
return E_NOINTERFACE; \
} \
\
static long STDCALL CLASSNAME ## _AddRef(IUnknown * This) \
{ \
CLASSNAME * me=( CLASSNAME *)This; \
Debug printf(#CLASSNAME "_AddRef(%p) called (ref:%d)\n", This, me->refcount); \
return ++(me->refcount); \
} \
\
static long STDCALL CLASSNAME ## _Release(IUnknown * This) \
{ \
CLASSNAME* me=( CLASSNAME *)This; \
Debug printf(#CLASSNAME "_Release(%p) called (new ref:%d)\n", This, me->refcount - 1); \
if(--(me->refcount) == 0) \
CLASSNAME ## _Destroy(me); \
return 0; \
}
#endif /* DS_IUNK_H */
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