void prefetch(int, unsigned int *, unsigned short *, short*);
void *transPrefetch(void *);
void *mcqProcess(void *);
-void checkPrefetchTuples(prefetchqelem_t *);
prefetchpile_t *foundLocal(prefetchqelem_t *);// returns node with prefetch elements(oids, offsets)
-prefetchpile_t *makePreGroups(prefetchqelem_t *, int *);// returns node with prefetch elements(oids, offsets)
-void checkPreCache(prefetchqelem_t *, int *, unsigned int, int);
+int lookupObject(unsigned int * oid, short offset);
int transPrefetchProcess(transrecord_t *, int **, short);
void sendPrefetchReq(prefetchpile_t*, int);
int getPrefetchResponse(int);