- lpar = tb->lnum[h];
- rpar = tb->rnum[h];
-
-
- /* calculate number of blocks S[h] must be split into when
- nothing is shifted to the neighbors,
- as well as number of items in each part of the split node (s012 numbers),
- and number of bytes (s1bytes) of the shared drop which flow to S1 if any */
- nset = NOTHING_SHIFT_NO_FLOW;
- nver = get_num_ver (vn->vn_mode, tb, h,
- 0, -1, h?vn->vn_nr_item:0, -1,
- snum012, NO_FLOW);
-
- if (!h)
- {
- int nver1;
-
- /* note, that in this case we try to bottle between S[0] and S1 (S1 - the first new node) */
- nver1 = get_num_ver (vn->vn_mode, tb, h,
- 0, -1, 0, -1,
- snum012 + NOTHING_SHIFT_FLOW, FLOW);
- if (nver > nver1)
- nset = NOTHING_SHIFT_FLOW, nver = nver1;
- }
-
-
- /* calculate number of blocks S[h] must be split into when
- l_shift_num first items and l_shift_bytes of the right most
- liquid item to be shifted are shifted to the left neighbor,
- as well as number of items in each part of the splitted node (s012 numbers),
- and number of bytes (s1bytes) of the shared drop which flow to S1 if any
- */
- lset = LEFT_SHIFT_NO_FLOW;
- lnver = get_num_ver (vn->vn_mode, tb, h,
- lpar - (( h || tb->lbytes == -1 ) ? 0 : 1), -1, h ? vn->vn_nr_item:0, -1,
- snum012 + LEFT_SHIFT_NO_FLOW, NO_FLOW);
- if (!h)
- {
- int lnver1;
-
- lnver1 = get_num_ver (vn->vn_mode, tb, h,
- lpar - ((tb->lbytes != -1) ? 1 : 0), tb->lbytes, 0, -1,
- snum012 + LEFT_SHIFT_FLOW, FLOW);
- if (lnver > lnver1)
- lset = LEFT_SHIFT_FLOW, lnver = lnver1;
- }
-
-
- /* calculate number of blocks S[h] must be split into when
- r_shift_num first items and r_shift_bytes of the left most
- liquid item to be shifted are shifted to the right neighbor,
- as well as number of items in each part of the splitted node (s012 numbers),
- and number of bytes (s1bytes) of the shared drop which flow to S1 if any
- */
- rset = RIGHT_SHIFT_NO_FLOW;
- rnver = get_num_ver (vn->vn_mode, tb, h,
- 0, -1, h ? (vn->vn_nr_item-rpar) : (rpar - (( tb->rbytes != -1 ) ? 1 : 0)), -1,
- snum012 + RIGHT_SHIFT_NO_FLOW, NO_FLOW);
- if (!h)
- {
- int rnver1;
-
- rnver1 = get_num_ver (vn->vn_mode, tb, h,
- 0, -1, (rpar - ((tb->rbytes != -1) ? 1 : 0)), tb->rbytes,
- snum012 + RIGHT_SHIFT_FLOW, FLOW);
-
- if (rnver > rnver1)
- rset = RIGHT_SHIFT_FLOW, rnver = rnver1;
- }
-
-
- /* calculate number of blocks S[h] must be split into when
- items are shifted in both directions,
- as well as number of items in each part of the splitted node (s012 numbers),
- and number of bytes (s1bytes) of the shared drop which flow to S1 if any
- */
- lrset = LR_SHIFT_NO_FLOW;
- lrnver = get_num_ver (vn->vn_mode, tb, h,
- lpar - ((h || tb->lbytes == -1) ? 0 : 1), -1, h ? (vn->vn_nr_item-rpar):(rpar - ((tb->rbytes != -1) ? 1 : 0)), -1,
- snum012 + LR_SHIFT_NO_FLOW, NO_FLOW);
- if (!h)
- {
- int lrnver1;
-
- lrnver1 = get_num_ver (vn->vn_mode, tb, h,
- lpar - ((tb->lbytes != -1) ? 1 : 0), tb->lbytes, (rpar - ((tb->rbytes != -1) ? 1 : 0)), tb->rbytes,
- snum012 + LR_SHIFT_FLOW, FLOW);
- if (lrnver > lrnver1)
- lrset = LR_SHIFT_FLOW, lrnver = lrnver1;
- }
-
-
+ /* calculate number of blocks S[h] must be split into when
+ l_shift_num first items and l_shift_bytes of the right most
+ liquid item to be shifted are shifted to the left neighbor,
+ as well as number of items in each part of the splitted node (s012 numbers),
+ and number of bytes (s1bytes) of the shared drop which flow to S1 if any
+ */
+ lset = LEFT_SHIFT_NO_FLOW;
+ lnver = get_num_ver(vn->vn_mode, tb, h,
+ lpar - ((h || tb->lbytes == -1) ? 0 : 1),
+ -1, h ? vn->vn_nr_item : 0, -1,
+ snum012 + LEFT_SHIFT_NO_FLOW, NO_FLOW);
+ if (!h) {
+ int lnver1;
+
+ lnver1 = get_num_ver(vn->vn_mode, tb, h,
+ lpar -
+ ((tb->lbytes != -1) ? 1 : 0),
+ tb->lbytes, 0, -1,
+ snum012 + LEFT_SHIFT_FLOW, FLOW);
+ if (lnver > lnver1)
+ lset = LEFT_SHIFT_FLOW, lnver = lnver1;
+ }