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[thin-provisioning] walk_mapping_tree()

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This commit is contained in:
Joe Thornber 2013-10-16 10:20:15 +01:00
parent a06139ef9f
commit b87742ccff
2 changed files with 69 additions and 10 deletions
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51
thin-provisioning/mapping_tree.cc
View File

@ -131,12 +131,12 @@ namespace {
using namespace thin_provisioning; using namespace thin_provisioning;
using namespace mapping_tree_detail; using namespace mapping_tree_detail;
struct block_time_visitor { struct noop_block_time_visitor : public mapping_tree_detail::mapping_visitor {
virtual void visit(btree_path const &, block_time const &) { virtual void visit(btree_path const &, block_time const &) {
} }
}; };
struct block_visitor { struct noop_block_visitor : public mapping_tree_detail::device_visitor {
virtual void visit(btree_path const &, uint64_t) { virtual void visit(btree_path const &, uint64_t) {
} }
}; };
@ -168,27 +168,58 @@ namespace {
}; };
} }
void
thin_provisioning::walk_mapping_tree(dev_tree const &tree,
mapping_tree_detail::device_visitor &dev_v,
mapping_tree_detail::damage_visitor &dv)
{
block_counter counter;
ll_damage_visitor ll_dv(dv);
btree_visit_values(tree, counter, dev_v, ll_dv);
}
void void
thin_provisioning::check_mapping_tree(dev_tree const &tree, thin_provisioning::check_mapping_tree(dev_tree const &tree,
mapping_tree_detail::damage_visitor &visitor) mapping_tree_detail::damage_visitor &visitor)
{ {
block_counter counter; // FIXME: get rid of this counter arg noop_block_visitor dev_v;
block_visitor vv; walk_mapping_tree(tree, dev_v, visitor);
ll_damage_visitor dv(visitor); }
btree_visit_values(tree, counter, vv, dv); void
thin_provisioning::walk_mapping_tree(mapping_tree const &tree,
mapping_tree_detail::mapping_visitor &mv,
mapping_tree_detail::damage_visitor &dv)
{
block_counter counter;
ll_damage_visitor ll_dv(dv);
btree_visit_values(tree, counter, mv, ll_dv);
} }
void void
thin_provisioning::check_mapping_tree(mapping_tree const &tree, thin_provisioning::check_mapping_tree(mapping_tree const &tree,
mapping_tree_detail::damage_visitor &visitor) mapping_tree_detail::damage_visitor &visitor)
{ {
block_counter counter; //FIXME: get rid of this counter arg noop_block_time_visitor mv;
block_time_visitor vv; walk_mapping_tree(tree, mv, visitor);
ll_damage_visitor dv(visitor); }
btree_visit_values(tree, counter, vv, dv); void
thin_provisioning::walk_mapping_tree(single_mapping_tree const &tree,
mapping_tree_detail::mapping_visitor &mv,
mapping_tree_detail::damage_visitor &dv)
{
block_counter counter;
ll_damage_visitor ll_dv(dv);
btree_visit_values(tree, counter, mv, ll_dv);
}
void
thin_provisioning::check_mapping_tree(single_mapping_tree const &tree,
mapping_tree_detail::damage_visitor &visitor)
{
noop_block_time_visitor mv;
walk_mapping_tree(tree, mv, visitor);
} }
//---------------------------------------------------------------- //----------------------------------------------------------------

28
thin-provisioning/mapping_tree.h
View File

@ -92,6 +92,8 @@ namespace thin_provisioning {
class damage_visitor { class damage_visitor {
public: public:
typedef boost::shared_ptr<damage_visitor> ptr;
virtual ~damage_visitor() {} virtual ~damage_visitor() {}
void visit(damage const &d) { void visit(damage const &d) {
@ -102,16 +104,42 @@ namespace thin_provisioning {
virtual void visit(missing_mappings const &d) = 0; virtual void visit(missing_mappings const &d) = 0;
}; };
class mapping_visitor {
public:
virtual ~mapping_visitor() {}
// path contains 2 elements, the dev key, then the oblock
virtual void visit(btree_path const &path, block_time const &m) = 0;
};
class device_visitor {
public:
virtual ~device_visitor() {}
virtual void visit(btree_path const &path, block_address dtree_root) = 0;
};
} }
typedef persistent_data::btree<2, mapping_tree_detail::block_traits> mapping_tree; typedef persistent_data::btree<2, mapping_tree_detail::block_traits> mapping_tree;
typedef persistent_data::btree<1, mapping_tree_detail::mtree_traits> dev_tree; typedef persistent_data::btree<1, mapping_tree_detail::mtree_traits> dev_tree;
typedef persistent_data::btree<1, mapping_tree_detail::block_traits> single_mapping_tree; typedef persistent_data::btree<1, mapping_tree_detail::block_traits> single_mapping_tree;
void walk_mapping_tree(dev_tree const &tree,
mapping_tree_detail::device_visitor &dev_v,
mapping_tree_detail::damage_visitor &dv);
void check_mapping_tree(dev_tree const &tree, void check_mapping_tree(dev_tree const &tree,
mapping_tree_detail::damage_visitor &visitor); mapping_tree_detail::damage_visitor &visitor);
void walk_mapping_tree(mapping_tree const &tree,
mapping_tree_detail::mapping_visitor &mv,
mapping_tree_detail::damage_visitor &dv);
void check_mapping_tree(mapping_tree const &tree, void check_mapping_tree(mapping_tree const &tree,
mapping_tree_detail::damage_visitor &visitor); mapping_tree_detail::damage_visitor &visitor);
void walk_mapping_tree(single_mapping_tree const &tree,
mapping_tree_detail::mapping_visitor &mv,
mapping_tree_detail::damage_visitor &dv);
void check_mapping_tree(single_mapping_tree const &tree,
mapping_tree_detail::damage_visitor &visitor);
} }
//---------------------------------------------------------------- //----------------------------------------------------------------