- /* Move half of the keys to the right sibling. */
- if ((copy = malloc(txn->mt_env->me_psize)) == NULL)
- return ENOMEM;
- memcpy(copy, &mdp->p, txn->mt_env->me_psize);
- memset(&mdp->p.mp_ptrs, 0, txn->mt_env->me_psize - PAGEHDRSZ);
- mdp->p.mp_lower = PAGEHDRSZ;
- mdp->p.mp_upper = txn->mt_env->me_psize;
+ nkeys = NUMKEYS(&mdp->p);
+ split_indx = nkeys / 2 + 1;
+
+ if (IS_LEAF2(&rdp->p)) {
+ char *split, *ins;
+ int x;
+ unsigned int lsize, rsize, ksize;
+ /* Move half of the keys to the right sibling */
+ copy = NULL;
+ x = *newindxp - split_indx;
+ ksize = txn->mt_dbs[dbi].md_pad;
+ split = LEAF2KEY(&mdp->p, split_indx, ksize);
+ rsize = (nkeys - split_indx) * ksize;
+ lsize = (nkeys - split_indx) * sizeof(indx_t);
+ mdp->p.mp_lower -= lsize;
+ rdp->p.mp_lower += lsize;
+ mdp->p.mp_upper += rsize - lsize;
+ rdp->p.mp_upper -= rsize - lsize;
+ sepkey.mv_size = ksize;
+ if (newindx == split_indx) {
+ sepkey.mv_data = newkey->mv_data;
+ } else {
+ sepkey.mv_data = split;
+ }
+ if (x<0) {
+ ins = LEAF2KEY(&mdp->p, *newindxp, ksize);
+ memcpy(&rdp->p.mp_ptrs, split, rsize);
+ sepkey.mv_data = &rdp->p.mp_ptrs;
+ memmove(ins+ksize, ins, (split_indx - *newindxp) * ksize);
+ memcpy(ins, newkey->mv_data, ksize);
+ mdp->p.mp_lower += sizeof(indx_t);
+ mdp->p.mp_upper -= ksize - sizeof(indx_t);
+ } else {
+ if (x)
+ memcpy(&rdp->p.mp_ptrs, split, x * ksize);
+ ins = LEAF2KEY(&rdp->p, x, ksize);
+ memcpy(ins, newkey->mv_data, ksize);
+ memcpy(ins+ksize, split + x * ksize, rsize - x * ksize);
+ rdp->p.mp_lower += sizeof(indx_t);
+ rdp->p.mp_upper -= ksize - sizeof(indx_t);
+ *newindxp = x;
+ *mpp = &rdp->p;
+ }
+ goto newsep;
+ }