btSIter *btSetFullRangeIter(btSIter *iter, bt *btr, bool asc, cswc_t *w) {
cswc_t W; // used in setHigh()
if (!btr->root || !btr->numkeys) return NULL;
if (!w) w = &W;
ai_obj *aL = &w->wf.alow, *aH = &w->wf.ahigh;
if (!assignMinKey(btr, aL) || !assignMaxKey(btr, aH)) return NULL;
btk_t btk;
bool med;
uint32 ksize;
SETITER8R(iter, btr, asc, iter_leaf, iter_leaf_rev, iter_node, iter_node_rev);
siter->scan = 1;
setHigh(siter, asc ? aH : aL, btr->s.ktype);
char *bkey = createBTKey(asc ? aL : aH,
&med, &ksize, btr, &btk); //DEST 030
if (!bkey) goto frangeiter_err;
bt_n *x = NULL;
int i = -1;
uchar *stream = setIter(btr, bkey, siter, asc ? aL : aH, &x, &i, asc);
destroyBTKey(bkey, med); /* DESTROYED 030 */
if (!stream && siter->missed) return siter;//IILMISS
if (!streamToBTEntry(stream, siter, x, i)) goto frangeiter_err;
if (btr->dirty_left) siter->missed = 1; // FULL means 100% FULL
return siter;
frangeiter_err:
btReleaseRangeIterator(siter);
return NULL;
}
btSIter *btGetFullXthIter(bt *btr, long oofst, bool asc, cswc_t *w, long lim) {
ulong ofst = (ulong)oofst;
cswc_t W; // used in setHigh()
if (!btr->root || !btr->numkeys) return NULL;
if (!w) w = &W;
ai_obj *aL = &w->wf.alow, *aH = &w->wf.ahigh;
if (!assignMinKey(btr, aL) || !assignMaxKey(btr, aH)) return NULL;
CR8ITER8R(btr, asc, iter_leaf, iter_leaf_rev, iter_node, iter_node_rev);
setHigh(siter, asc ? aH : aL, btr->s.ktype);
if (btScionFind(siter, btr->root, ofst, btr, asc, w, lim)) siter->empty = 0;
return siter;
}
/*
* Aerospike Index interface to build a defrag_list.
*
* Returns :
* AS_SINDEX_DONE ---> The current pimd has been scanned completely for defragging
* AS_SINDEX_CONTINUE ---> Current pimd sill may have some candidate digest to be defragged
* AS_SINDEX_ERR ---> Error. Abort this pimd.
*
* Notes : Caller has the responsibility to free the iterators.
* Requires a proper offset value from the caller.
*/
int
ai_btree_build_defrag_list(as_sindex_metadata *imd, as_sindex_pmetadata *pimd, ai_obj *icol,
long *nofst, long limit, uint64_t * tot_processed, uint64_t * tot_found, cf_ll *gc_list)
{
int ret = AS_SINDEX_ERR;
if (!pimd || !imd) {
return ret;
}
as_namespace *ns = imd->si->ns;
if (!ns) {
ns = as_namespace_get_byname((char *)imd->ns_name);
}
char *iname = get_iname_from_imd(imd);
if (!iname) {
ret = AS_SINDEX_ERR_NO_MEMORY;
return ret;
}
if (!pimd || !pimd->ibtr || !pimd->ibtr->numkeys) {
goto END;
}
//Entry is range query, FROM previous icol TO maxKey(ibtr)
if (icol->empty) {
assignMinKey(pimd->ibtr, icol); // init first call
}
ai_obj iH;
assignMaxKey(pimd->ibtr, &iH);
btEntry *be = NULL;
btSIter *bi = btGetRangeIter(pimd->ibtr, icol, &iH, 1);
if (!bi) {
goto END;
}
while ( true ) {
be = btRangeNext(bi, 1);
if (!be) {
ret = AS_SINDEX_DONE;
break;
}
ai_obj *acol = be->key;
ai_nbtr *anbtr = be->val;
long processed = 0;
if (!anbtr) {
break;
}
if (anbtr->is_btree) {
processed = build_defrag_list_from_nbtr(ns, acol, anbtr->u.nbtr, *nofst, &limit, tot_found, gc_list);
} else {
processed = build_defrag_list_from_arr(ns, acol, anbtr->u.arr, *nofst, &limit, tot_found, gc_list);
}
if (processed < 0) { // error .. abort everything.
cf_detail(AS_SINDEX, "build_defrag_list returns an error. Aborting defrag on current pimd");
ret = AS_SINDEX_ERR;
break;
}
*tot_processed += processed;
// This tree may have some more digest to defrag
if (limit == 0) {
*nofst = *nofst + processed;
ai_objClone(icol, acol);
cf_detail(AS_SINDEX, "Current pimd may need more iteration of defragging.");
ret = AS_SINDEX_CONTINUE;
break;
}
// We have finished this tree. Yet we have not reached our limit to defrag.
// Goes to next iteration
*nofst = 0;
ai_objClone(icol, acol);
};
btReleaseRangeIterator(bi);
END:
cf_free(iname);
return ret;
}