100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
#include "thin-provisioning/device_tree.h"
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#include "persistent-data/data-structures/btree_damage_visitor.h"
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using namespace persistent_data;
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using namespace thin_provisioning;
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//----------------------------------------------------------------
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namespace {
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using namespace device_tree_detail;
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struct visitor_adapter {
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visitor_adapter(device_visitor &dv)
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: dv_(dv) {
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}
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void visit(btree_path const &path, device_details const &dd) {
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dv_.visit(path[0], dd);
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}
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private:
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device_visitor &dv_;
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};
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// No op for now, should add sanity checks in here however.
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struct noop_visitor : public device_visitor {
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virtual void visit(block_address dev_id, device_details const &dd) {
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}
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};
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class ll_damage_visitor {
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public:
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// FIXME: is the namespace needed on here?
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ll_damage_visitor(device_tree_detail::damage_visitor &v)
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: v_(v) {
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}
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virtual void visit(btree_path const &path, btree_detail::damage const &d) {
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v_.visit(missing_devices(d.desc_, d.lost_keys_));
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}
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private:
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device_tree_detail::damage_visitor &v_;
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};
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}
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namespace thin_provisioning {
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namespace device_tree_detail {
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void
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device_details_traits::unpack(device_details_disk const &disk, device_details &value)
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{
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value.mapped_blocks_ = to_cpu<uint64_t>(disk.mapped_blocks_);
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value.transaction_id_ = to_cpu<uint64_t>(disk.transaction_id_);
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value.creation_time_ = to_cpu<uint32_t>(disk.creation_time_);
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value.snapshotted_time_ = to_cpu<uint32_t>(disk.snapshotted_time_);
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}
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void
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device_details_traits::pack(device_details const &value, device_details_disk &disk)
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{
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disk.mapped_blocks_ = to_disk<le64>(value.mapped_blocks_);
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disk.transaction_id_ = to_disk<le64>(value.transaction_id_);
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disk.creation_time_ = to_disk<le32>(value.creation_time_);
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disk.snapshotted_time_ = to_disk<le32>(value.snapshotted_time_);
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}
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missing_devices::missing_devices(std::string const &desc,
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run<uint64_t> const &keys)
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: desc_(desc),
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keys_(keys) {
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}
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void missing_devices::visit(damage_visitor &v) const {
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v.visit(*this);
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}
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}
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}
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//----------------------------------------------------------------
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void
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thin_provisioning::walk_device_tree(device_tree const &tree,
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device_tree_detail::device_visitor &vv,
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device_tree_detail::damage_visitor &dv)
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{
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visitor_adapter av(vv);
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ll_damage_visitor ll_dv(dv);
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btree_visit_values(tree, av, ll_dv);
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}
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void
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thin_provisioning::check_device_tree(device_tree const &tree, damage_visitor &visitor)
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{
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noop_visitor vv;
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walk_device_tree(tree, vv, visitor);
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}
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//----------------------------------------------------------------
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