emo/thin-provisioning-tools
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[era] switch from bloom filters to writesets

Browse Source
This commit is contained in:
Joe Thornber
2014-01-29 21:37:25 +00:00
parent e7bbfbc1fd
commit 8531a2befa
20 changed files with 439 additions and 160 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
era/metadata_dump.cc
View File

@@ -17,42 +17,42 @@ namespace {
"perhaps you wanted to run with --repair ?");
}
class bloom_tree_emitter : public bloom_tree_detail::bloom_visitor {
class writeset_tree_emitter : public writeset_tree_detail::writeset_visitor {
public:
bloom_tree_emitter(emitter::ptr e)
writeset_tree_emitter(emitter::ptr e)
: e_(e) {
}
virtual void bloom_begin(uint32_t era, uint32_t nr_blocks, uint32_t nr_bits, uint32_t nr_set) {
e_->begin_bloom(era, nr_bits, nr_blocks);
virtual void writeset_begin(uint32_t era, uint32_t nr_bits) {
e_->begin_writeset(era, nr_bits);
}
virtual void bit(uint32_t bit, bool value) {
e_->bloom_bit(bit, value);
e_->writeset_bit(bit, value);
}
virtual void bloom_end() {
e_->end_bloom();
virtual void writeset_end() {
e_->end_writeset();
}
private:
emitter::ptr e_;
};
struct ignore_bloom_tree_damage : public bloom_tree_detail::damage_visitor {
void visit(bloom_tree_detail::missing_eras const &d) {
struct ignore_writeset_tree_damage : public writeset_tree_detail::damage_visitor {
void visit(writeset_tree_detail::missing_eras const &d) {
}
void visit(bloom_tree_detail::damaged_bloom_filter const &d) {
void visit(writeset_tree_detail::damaged_writeset const &d) {
}
};
struct fatal_bloom_tree_damage : public bloom_tree_detail::damage_visitor {
void visit(bloom_tree_detail::missing_eras const &d) {
struct fatal_writeset_tree_damage : public writeset_tree_detail::damage_visitor {
void visit(writeset_tree_detail::missing_eras const &d) {
raise_metadata_damage();
}
void visit(bloom_tree_detail::damaged_bloom_filter const &d) {
void visit(writeset_tree_detail::damaged_writeset const &d) {
raise_metadata_damage();
}
};
@@ -104,15 +104,15 @@ era::metadata_dump(metadata::ptr md, emitter::ptr e, bool repair)
sb.current_era);
{
{
bloom_tree_emitter visitor(e);
writeset_tree_emitter visitor(e);
ignore_bloom_tree_damage ignore;
fatal_bloom_tree_damage fatal;
bloom_tree_detail::damage_visitor &dv = repair ?
static_cast<bloom_tree_detail::damage_visitor &>(ignore) :
static_cast<bloom_tree_detail::damage_visitor &>(fatal);
ignore_writeset_tree_damage ignore;
fatal_writeset_tree_damage fatal;
writeset_tree_detail::damage_visitor &dv = repair ?
static_cast<writeset_tree_detail::damage_visitor &>(ignore) :
static_cast<writeset_tree_detail::damage_visitor &>(fatal);
walk_bloom_tree(md->tm_, *md->bloom_tree_, visitor, dv);
walk_writeset_tree(md->tm_, *md->writeset_tree_, visitor, dv);
}
e->begin_era_array();