void *genericmaptable(const GtStr *indexname,
const char *suffix,
unsigned long expectedunits,
size_t sizeofunit,
GtError *err)
{
size_t numofbytes;
void *ptr = genericmaponlytable(indexname,suffix,&numofbytes,err);
if (ptr == NULL)
{
return NULL;
}
if (checkmappedfilesize(indexname,suffix,
numofbytes,expectedunits,sizeofunit,err) != 0)
{
gt_fa_xmunmap(ptr);
return NULL;
}
return ptr;
}
Pckbuckettable *mappckbuckettable(const GtStr *indexname,
unsigned int numofchars,
GtError *err)
{
size_t numofbytes;
void *mapptr;
unsigned int maxdepth;
Pckbuckettable *pckbt;
gt_error_check(err);
mapptr = genericmaponlytable(indexname,PCKBUCKETTABLE,&numofbytes,err);
if (mapptr == NULL)
{
return NULL;
}
maxdepth = (unsigned int) ((Seqpos *) mapptr)[0];
pckbt = allocandinitpckbuckettable(numofchars,maxdepth,false);
pckbt->mapptr = mapptr;
pckbt->mbtab[0] = (Mbtab *) (((Seqpos *) mapptr) + 1);
setbcktaboffsets(pckbt);
gt_assert(numofbytes ==
sizeof (Seqpos) + sizeof (Mbtab) * pckbt->maxnumofvalues);
return pckbt;
}