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check all the index entries are present, and they\'re no extra ones

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This commit is contained in:
Joe Thornber 2011-09-01 14:05:01 +01:00
parent b4dbf8d74c
commit 096da9233b
2 changed files with 38 additions and 5 deletions
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44
space_map_disk.cc
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@ -318,13 +318,44 @@ namespace {
bool visit_leaf(unsigned level, bool is_root,
btree_detail::node_ref<index_entry_traits> const &n) {
bool r = btree_checker<1, index_entry_traits>::visit_leaf(level, is_root, n);
if (r)
for (unsigned i = 0; i < n.get_nr_entries(); i++)
btree_checker<1, index_entry_traits>::get_counter().inc(n.value_at(i).blocknr_);
if (!r)
return r;
for (unsigned i = 0; i < n.get_nr_entries(); i++) {
if (seen_indexes_.count(n.key_at(i)) > 0) {
ostringstream out;
out << "index entry " << i << " is present twice";
throw runtime_error(out.str());
}
seen_indexes_.insert(n.key_at(i));
btree_checker<1, index_entry_traits>::get_counter().inc(n.value_at(i).blocknr_);
}
return true;
}
void check_all_index_entries_present(block_address nr_entries) {
for (block_address i = 0; i < nr_entries; i++) {
if (seen_indexes_.count(i) == 0) {
ostringstream out;
out << "missing index entry " << i;
throw runtime_error(out.str());
}
}
set<block_address>::const_iterator it;
for (it = seen_indexes_.begin(); it != seen_indexes_.end(); ++it) {
if (*it >= nr_entries) {
ostringstream out;
out << "unexpected index entry " << *it;
throw runtime_error(out.str());
}
}
}
private:
set<block_address> seen_indexes_;
};
class sm_disk : public sm_disk_base {
@ -366,6 +397,9 @@ namespace {
bitmap_tree_validator::ptr v(new bitmap_tree_validator(counter));
bitmaps_.visit(v);
block_address nr_entries = div_up<block_address>(get_nr_blocks(), get_entries_per_block());
v->check_all_index_entries_present(nr_entries);
}
private:

1
thin_dump.cc
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@ -12,7 +12,6 @@ namespace {
void dump(string const &path) {
metadata md(path);
//human_readable::ptr emitter(new human_readable);
// md.dump();
}