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[btree] call inc_children when shadowning a btree node.

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This commit is contained in:
Joe Thornber 2013-06-19 17:20:12 +01:00
parent ec99e6fd93
commit a2e51062e3
2 changed files with 19 additions and 10 deletions
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5
persistent-data/data-structures/btree.h
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@ -397,12 +397,13 @@ namespace persistent_data {
block_address parent_index,
uint64_t key);
template <typename ValueTraits2>
template <typename ValueTraits2, typename RC>
bool
insert_location(btree_detail::shadow_spine &spine,
block_address block,
uint64_t key,
int *index);
int *index,
RC &leaf_rc);
void walk_tree(visitor &visitor,
btree_detail::node_location const &loc,

24
persistent-data/data-structures/btree.tcc
View File

@ -467,7 +467,7 @@ namespace persistent_data {
shadow_spine spine(tm_, validator_);
for (unsigned level = 0; level < Levels - 1; ++level) {
bool need_insert = insert_location<uint64_traits>(spine, block, key[level], &index);
bool need_insert = insert_location<uint64_traits>(spine, block, key[level], &index, internal_rc_);
internal_node n = spine.template get_node<uint64_traits>();
if (need_insert) {
@ -478,7 +478,7 @@ namespace persistent_data {
block = n.value_at(index);
}
bool need_insert = insert_location<ValueTraits>(spine, block, key[Levels - 1], &index);
bool need_insert = insert_location<ValueTraits>(spine, block, key[Levels - 1], &index, rc_);
leaf_node n = spine.template get_node<ValueTraits>();
if (need_insert)
@ -678,13 +678,14 @@ namespace persistent_data {
// Returns true if we need a new insertion, rather than overwrite.
template <unsigned Levels, typename _>
template <typename ValueTraits>
template <typename ValueTraits, typename RC>
bool
btree<Levels, _>::
insert_location(btree_detail::shadow_spine &spine,
block_address block,
uint64_t key,
int *index)
int *index,
RC &leaf_rc)
{
using namespace btree_detail;
@ -694,10 +695,17 @@ namespace persistent_data {
for (;;) {
inc = spine.step(block);
#if 0
if (inc)
inc_children<ValueTraits>();
#endif
// FIXME: factor out
{
node_ref<uint64_traits> nr = spine.template get_node<uint64_traits>();
if (nr.get_type() == INTERNAL)
nr.inc_children(internal_rc_);
else {
node_ref<ValueTraits> leaf = spine.template get_node<ValueTraits>();
leaf.inc_children(leaf_rc);
}
}
// patch up the parent to point to the new shadow
if (spine.has_parent()) {