[thin_delta] Add superblock and diff tags
This commit is contained in:
Joe Thornber
parent
182be112fa
commit
0e72f772d0
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@ -6,9 +6,11 @@
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#include "version.h"
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#include "base/indented_stream.h"
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#include "persistent-data/data-structures/btree_damage_visitor.h"
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#include "persistent-data/run.h"
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#include "persistent-data/space-maps/core.h"
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#include "persistent-data/space-maps/disk.h"
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#include "persistent-data/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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@ -27,8 +29,11 @@ namespace local {
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}
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void usage(ostream &out) {
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out << "Usage: " << cmd_ << " [options] --snap1 <snap> --snap2 <snap> <device or file>\n"
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out << "Usage: " << cmd_ << " [options] <device or file>\n"
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<< "Options:\n"
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<< " {--thin1, --snap1}\n"
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<< " {--thin2, --snap2}\n"
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<< " {-m, --metadata-snap}\n"
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<< " {--verbose}\n"
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<< " {-h|--help}\n"
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<< " {-V|--version}" << endl;
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@ -201,7 +206,7 @@ namespace local {
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class diff_emitter {
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public:
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diff_emitter(ostream &out)
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diff_emitter(indented_stream &out)
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: out_(out) {
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}
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@ -212,18 +217,22 @@ namespace local {
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virtual void complete() = 0;
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protected:
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ostream &out() {
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void indent() {
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out_.indent();
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}
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indented_stream &out() {
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return out_;
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}
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private:
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ostream &out_;
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indented_stream &out_;
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};
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class simple_emitter : public diff_emitter {
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public:
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simple_emitter(ostream &out)
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simple_emitter(indented_stream &out)
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: diff_emitter(out) {
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}
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@ -272,6 +281,7 @@ namespace local {
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if (!current_type_)
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return;
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indent();
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switch (*current_type_) {
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case LEFT_ONLY:
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out() << "<left_only";
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@ -300,27 +310,30 @@ namespace local {
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class verbose_emitter : public diff_emitter {
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public:
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verbose_emitter(ostream &out)
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verbose_emitter(indented_stream &out)
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: diff_emitter(out) {
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}
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void left_only(uint64_t vbegin, uint64_t dbegin, uint64_t len) {
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begin_block(LEFT_ONLY);
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out() << " <range begin=\"" << vbegin << "\""
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indent();
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out() << "<range begin=\"" << vbegin << "\""
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<< " data_begin=\"" << dbegin << "\""
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<< " length=\"" << len << "\"/>\n";
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}
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void right_only(uint64_t vbegin, uint64_t dbegin, uint64_t len) {
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begin_block(RIGHT_ONLY);
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out() << " <range begin=\"" << vbegin << "\""
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indent();
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out() << "<range begin=\"" << vbegin << "\""
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<< " data_begin=\"" << dbegin << "\""
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<< " length=\"" << len << "\"/>\n";
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}
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void blocks_differ(uint64_t vbegin, uint64_t left_dbegin, uint64_t right_dbegin, uint64_t len) {
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begin_block(DIFFER);
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out() << " <range begin=\"" << vbegin << "\""
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indent();
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out() << "<range begin=\"" << vbegin << "\""
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<< " left_data_begin=\"" << left_dbegin << "\""
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<< " right_data_begin=\"" << right_dbegin << "\""
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<< " length=\"" << len << "\"/>\n";
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@ -328,7 +341,8 @@ namespace local {
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void blocks_same(uint64_t vbegin, uint64_t dbegin, uint64_t len) {
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begin_block(SAME);
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out() << " <range begin=\"" << vbegin << "\""
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indent();
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out() << "<range begin=\"" << vbegin << "\""
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<< " data_begin=\"" << dbegin << "\""
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<< " length=\"" << len << "\"/>\n";
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}
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@ -359,6 +373,7 @@ namespace local {
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}
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void open(block_type t) {
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indent();
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switch (t) {
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case LEFT_ONLY:
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out() << "<left_only>\n";
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@ -376,24 +391,27 @@ namespace local {
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out() << "<same>\n";
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break;
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}
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out().inc();
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}
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void close(block_type t) {
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out().dec();
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indent();
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switch (t) {
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case LEFT_ONLY:
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out() << "</left_only>\n\n";
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out() << "</left_only>\n";
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break;
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case RIGHT_ONLY:
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out() << "</right_only>\n\n";
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out() << "</right_only>\n";
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break;
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case DIFFER:
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out() << "</different>\n\n";
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out() << "</different>\n";
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break;
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case SAME:
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out() << "</same>\n\n";
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out() << "</same>\n";
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break;
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}
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@ -466,16 +484,59 @@ namespace local {
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e.complete();
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}
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// FIXME: duplication with xml_format
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void begin_superblock(indented_stream &out,
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string const &uuid,
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uint64_t time,
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uint64_t trans_id,
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uint32_t data_block_size,
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uint64_t nr_data_blocks,
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boost::optional<uint64_t> metadata_snap) {
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out.indent();
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out << "<superblock uuid=\"" << uuid << "\""
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<< " time=\"" << time << "\""
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<< " transaction=\"" << trans_id << "\""
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<< " data_block_size=\"" << data_block_size << "\""
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<< " nr_data_blocks=\"" << nr_data_blocks;
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if (metadata_snap)
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out << "\" metadata_snap=\"" << *metadata_snap;
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out << "\">\n";
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out.inc();
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}
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void end_superblock(indented_stream &out) {
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out.dec();
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out.indent();
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out << "</superblock>\n";
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}
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void begin_diff(indented_stream &out, uint64_t snap1, uint64_t snap2) {
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out.indent();
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out << "<diff left=\"" << snap1 << "\" right=\"" << snap2 << "\">\n";
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out.inc();
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}
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void end_diff(indented_stream &out) {
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out.dec();
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out.indent();
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out << "</diff>\n";
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}
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void delta_(application &app, flags const &fs) {
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mapping_recorder mr1;
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mapping_recorder mr2;
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damage_visitor damage_v;
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superblock_detail::superblock sb;
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checked_space_map::ptr data_sm;
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{
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block_manager<>::ptr bm = open_bm(*fs.dev);
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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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sb = read_superblock(bm);
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data_sm = open_disk_sm(*tm, static_cast<void *>(&sb.data_space_map_root_));
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dev_tree dtree(*tm, sb.data_mapping_root_,
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mapping_tree_detail::mtree_traits::ref_counter(tm));
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@ -508,13 +569,26 @@ namespace local {
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mr2.complete();
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}
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indented_stream is(cout);
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begin_superblock(is, "", sb.time_,
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sb.trans_id_,
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sb.data_block_size_,
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data_sm->get_nr_blocks(),
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sb.metadata_snap_ ?
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boost::optional<block_address>(sb.metadata_snap_) :
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boost::optional<block_address>());
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begin_diff(is, *fs.snap1, *fs.snap2);
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if (fs.verbose) {
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verbose_emitter e(cout);
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verbose_emitter e(is);
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dump_diff(mr1.get_mappings(), mr2.get_mappings(), e);
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} else {
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simple_emitter e(cout);
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simple_emitter e(is);
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dump_diff(mr1.get_mappings(), mr2.get_mappings(), e);
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}
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end_diff(is);
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end_superblock(is);
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}
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int delta(application &app, flags const &fs) {
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@ -541,13 +615,15 @@ int thin_delta_main(int argc, char **argv)
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flags fs;
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local::application app(basename(argv[0]));
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char const shortopts[] = "hV";
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char const shortopts[] = "hVm";
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option const longopts[] = {
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{ "help", no_argument, NULL, 'h' },
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{ "version", no_argument, NULL, 'V' },
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{ "thin1", required_argument, NULL, 1 },
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{ "snap1", required_argument, NULL, 1 },
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{ "thin2", required_argument, NULL, 2 },
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{ "snap2", required_argument, NULL, 2 },
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{ "metadata-snap", no_argument, NULL, 3 },
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{ "metadata-snap", no_argument, NULL, 'm' },
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{ "verbose", no_argument, NULL, 4 }
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};
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@ -569,7 +645,7 @@ int thin_delta_main(int argc, char **argv)
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fs.snap2 = app.parse_snap(optarg);
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break;
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case 3:
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case 'm':
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abort();
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break;
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