[thin_rmap] finish implementing
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@ -6,7 +6,10 @@
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#include "version.h"
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#include "persistent-data/data-structures/btree_damage_visitor.h"
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#include "persistent-data/range.h"
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#include "persistent-data/space-maps/core.h"
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#include "thin-provisioning/file_utils.h"
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#include "thin-provisioning/superblock.h"
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#include "thin-provisioning/mapping_tree.h"
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@ -16,10 +19,85 @@ using namespace thin_provisioning;
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//----------------------------------------------------------------
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namespace {
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block_manager<>::ptr
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open_bm(string const &path) {
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block_address nr_blocks = get_nr_blocks(path);
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typename block_io<>::mode m = block_io<>::READ_ONLY;
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return block_manager<>::ptr(new block_manager<>(path, nr_blocks, 1, m));
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}
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transaction_manager::ptr
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open_tm(block_manager<>::ptr bm) {
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space_map::ptr sm(new core_map(bm->get_nr_blocks()));
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sm->inc(superblock_detail::SUPERBLOCK_LOCATION);
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transaction_manager::ptr tm(new transaction_manager(bm, sm));
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return tm;
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}
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//--------------------------------
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typedef range<block_address> region;
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using namespace mapping_tree_detail;
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class region_visitor {
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public:
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region_visitor(vector<region> const ®ions)
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: regions_(regions) {
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}
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virtual void visit(btree_path const &path, block_time const &bt) {
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if (in_regions(bt.block_)) {
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uint32_t thin_dev = path[0];
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block_address thin_block = path[1];
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cout << "[" << thin_dev
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<< ", " << thin_block
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<< "] -> " << bt.block_
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<< endl;
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}
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}
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private:
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// Slow, but I suspect we wont run with many regions.
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bool in_regions(block_address b) const {
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for (region const &r : regions_)
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if (r.contains(b))
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return true;
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return false;
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}
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vector<region> const ®ions_;
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};
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class damage_visitor {
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public:
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virtual void visit(btree_path const &path, btree_detail::damage const &d) {
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throw std::runtime_error("damage in mapping tree, please run thin_check");
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}
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};
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int rmap(string const &path, vector<region> const ®ions) {
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cerr << "Not implemented" << endl;
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block_counter counter; // FIXME: get rid of this counter arg
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region_visitor rv(regions);
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damage_visitor dv;
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try {
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block_manager<>::ptr bm = open_bm(path);
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transaction_manager::ptr tm = open_tm(bm);
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superblock_detail::superblock sb = read_superblock(bm);
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mapping_tree mtree(tm, sb.data_mapping_root_,
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mapping_tree_detail::block_traits::ref_counter(tm->get_sm()));
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btree_visit_values(mtree, counter, rv, dv);
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} catch (std::exception const &e) {
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cerr << e.what();
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return 1;
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}
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return 0;
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}
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