static int
merge_output(Bucket *r, SetIteration *i, int mapping)
{
if (r->len >= r->size && Bucket_grow(r, -1, !mapping) < 0)
return -1;
COPY_KEY(r->keys[r->len], i->key);
INCREF_KEY(r->keys[r->len]);
if (mapping) {
COPY_VALUE(r->values[r->len], i->value);
INCREF_VALUE(r->values[r->len]);
}
r->len++;
return 0;
}
static int
nextBTreeItems(SetIteration *i)
{
if (i->position >= 0)
{
if (i->position)
{
DECREF_KEY(i->key);
DECREF_VALUE(i->value);
}
if (BTreeItems_seek(ITEMS(i->set), i->position) >= 0)
{
Bucket *currentbucket;
currentbucket = BUCKET(ITEMS(i->set)->currentbucket);
UNLESS(PER_USE(currentbucket))
{
/* Mark iteration terminated, so that finiSetIteration doesn't
* try to redundantly decref the key and value
*/
i->position = -1;
return -1;
}
COPY_KEY(i->key, currentbucket->keys[ITEMS(i->set)->currentoffset]);
INCREF_KEY(i->key);
COPY_VALUE(i->value,
currentbucket->values[ITEMS(i->set)->currentoffset]);
INCREF_VALUE(i->value);
i->position ++;
PER_UNUSE(currentbucket);
}
else
{
