void
rtree_delete(rtree_t *rtree)
{
rtree_delete_subtree(rtree, rtree->root, 0);
rtree->dalloc(rtree);
}
static void
rtree_delete_subtree(tsdn_t *tsdn, rtree_t *rtree, rtree_node_elm_t *subtree,
unsigned level) {
size_t nchildren = ZU(1) << rtree_levels[level].bits;
if (level + 2 < RTREE_HEIGHT) {
for (size_t i = 0; i < nchildren; i++) {
rtree_node_elm_t *node =
(rtree_node_elm_t *)atomic_load_p(&subtree[i].child,
ATOMIC_RELAXED);
if (node != NULL) {
rtree_delete_subtree(tsdn, rtree, node, level +
1);
}
}
} else {
for (size_t i = 0; i < nchildren; i++) {
rtree_leaf_elm_t *leaf =
(rtree_leaf_elm_t *)atomic_load_p(&subtree[i].child,
ATOMIC_RELAXED);
if (leaf != NULL) {
rtree_leaf_dalloc(tsdn, rtree, leaf);
}
}
}
if (subtree != rtree->root) {
rtree_node_dalloc(tsdn, rtree, subtree);
}
}
void
rtree_delete(rtree_t *rtree)
{
rtree_delete_subtree(rtree, rtree->root, 0);
if (rtree->dalloc)
rtree->dalloc(rtree->pool, rtree);
malloc_mutex_destroy(&rtree->mutex);
}
static void
rtree_delete_subtree(rtree_t *rtree, void **node, unsigned level)
{
if (level < rtree->height - 1) {
size_t nchildren, i;
nchildren = ZU(1) << rtree->level2bits[level];
for (i = 0; i < nchildren; i++) {
void **child = (void **)node[i];
if (child != NULL)
rtree_delete_subtree(rtree, child, level + 1);
}
}
rtree->dalloc(node);
}
void
rtree_delete(tsdn_t *tsdn, rtree_t *rtree) {
# if RTREE_HEIGHT > 1
rtree_delete_subtree(tsdn, rtree, rtree->root, 0);
# endif
}