e3a646e4d2
Do not open the metadata. The tool interprets user specified blocks one-by-one. Thus, there's no need to preload the metadata structures. Also remove the unused --ignore-metadata-space-map option. It was designed to control the loading of space maps with the old metadata constructors.
336 lines
10 KiB
C++
336 lines
10 KiB
C++
// Copyright (C) 2012 Red Hat, Inc. All rights reserved.
|
|
//
|
|
// This file is part of the thin-provisioning-tools source.
|
|
//
|
|
// thin-provisioning-tools is free software: you can redistribute it
|
|
// and/or modify it under the terms of the GNU General Public License
|
|
// as published by the Free Software Foundation, either version 3 of
|
|
// the License, or (at your option) any later version.
|
|
//
|
|
// thin-provisioning-tools is distributed in the hope that it will be
|
|
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
|
|
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License along
|
|
// with thin-provisioning-tools. If not, see
|
|
// <http://www.gnu.org/licenses/>.
|
|
|
|
#include <boost/lexical_cast.hpp>
|
|
#include <getopt.h>
|
|
#include <iostream>
|
|
#include <string>
|
|
|
|
#include "base/command_interpreter.h"
|
|
#include "base/output_formatter.h"
|
|
#include "persistent-data/file_utils.h"
|
|
#include "persistent-data/data-structures/btree.h"
|
|
#include "persistent-data/data-structures/simple_traits.h"
|
|
#include "persistent-data/space-maps/disk_structures.h"
|
|
#include "caching/commands.h"
|
|
#include "caching/metadata.h"
|
|
#include "version.h"
|
|
|
|
using namespace dbg;
|
|
using namespace persistent_data;
|
|
using namespace std;
|
|
using namespace caching;
|
|
|
|
//----------------------------------------------------------------
|
|
|
|
namespace {
|
|
class hello : public dbg::command {
|
|
virtual void exec(strings const &args, ostream &out) {
|
|
out << "Hello, world!" << endl;
|
|
}
|
|
};
|
|
|
|
class help : public dbg::command {
|
|
virtual void exec(strings const &args, ostream &out) {
|
|
out << "Commands:" << endl
|
|
<< " superblock [block#]" << endl
|
|
<< " mapping_node <block# of tree node for mappings>" << endl
|
|
<< " mapping_array <block# of array block for mappings>" << endl
|
|
<< " exit" << endl;
|
|
}
|
|
};
|
|
|
|
class exit_handler : public dbg::command {
|
|
public:
|
|
exit_handler(command_interpreter::ptr interpreter)
|
|
: interpreter_(interpreter) {
|
|
}
|
|
|
|
virtual void exec(strings const &args, ostream &out) {
|
|
out << "Goodbye!" << endl;
|
|
interpreter_->exit_main_loop();
|
|
}
|
|
|
|
command_interpreter::ptr interpreter_;
|
|
};
|
|
|
|
class sm_root_show_traits : public persistent_data::sm_disk_detail::sm_root_traits {
|
|
public:
|
|
static void show(formatter::ptr f, string const &key,
|
|
persistent_data::sm_disk_detail::sm_root const &value) {
|
|
field(*f, "nr_blocks", value.nr_blocks_);
|
|
field(*f, "nr_allocated", value.nr_allocated_);
|
|
field(*f, "bitmap_root", value.bitmap_root_);
|
|
field(*f, "ref_count_root", value.ref_count_root_);
|
|
}
|
|
};
|
|
|
|
class show_superblock : public dbg::command {
|
|
public:
|
|
explicit show_superblock(block_manager::ptr bm)
|
|
: bm_(bm) {
|
|
}
|
|
|
|
virtual void exec(strings const &args, ostream &out) {
|
|
if (args.size() > 2)
|
|
throw runtime_error("incorrect number of arguments");
|
|
|
|
block_address b = caching::SUPERBLOCK_LOCATION;
|
|
if (args.size() == 2)
|
|
b = boost::lexical_cast<block_address>(args[1]);
|
|
caching::superblock sb = read_superblock(bm_, b);
|
|
|
|
formatter::ptr f = create_xml_formatter();
|
|
ostringstream version;
|
|
field(*f, "csum", sb.csum);
|
|
field(*f, "flags", sb.flags.encode());
|
|
field(*f, "blocknr", sb.blocknr);
|
|
field(*f, "uuid", sb.uuid); // FIXME: delimit, and handle non-printable chars
|
|
field(*f, "magic", sb.magic);
|
|
field(*f, "version", sb.version);
|
|
field(*f, "policy_name", reinterpret_cast<char const*>(sb.policy_name));
|
|
version << sb.policy_version[0] << "."
|
|
<< sb.policy_version[1] << "."
|
|
<< sb.policy_version[2];
|
|
field(*f, "policy_version", version.str().c_str());
|
|
field(*f, "policy_hint_size", sb.policy_hint_size);
|
|
|
|
sm_disk_detail::sm_root_disk const *d;
|
|
sm_disk_detail::sm_root v;
|
|
{
|
|
d = reinterpret_cast<sm_disk_detail::sm_root_disk const *>(sb.metadata_space_map_root);
|
|
sm_disk_detail::sm_root_traits::unpack(*d, v);
|
|
formatter::ptr f2 = create_xml_formatter();
|
|
sm_root_show_traits::show(f2, "value", v);
|
|
f->child("metadata_space_map_root", f2);
|
|
}
|
|
|
|
field(*f, "mapping_root", sb.mapping_root);
|
|
if (sb.version >= 2)
|
|
field(*f, "dirty_root", *sb.dirty_root);
|
|
field(*f, "hint_root", sb.hint_root);
|
|
field(*f, "discard_root", sb.discard_root);
|
|
field(*f, "discard_block_size", sb.discard_block_size);
|
|
field(*f, "discard_nr_blocks", sb.discard_nr_blocks);
|
|
field(*f, "data_block_size", sb.data_block_size);
|
|
field(*f, "metadata_block_size", sb.metadata_block_size);
|
|
field(*f, "cache_blocks", sb.cache_blocks);
|
|
field(*f, "compat_flags", sb.compat_flags);
|
|
field(*f, "compat_ro_flags", sb.compat_ro_flags);
|
|
field(*f, "incompat_flags", sb.incompat_flags);
|
|
field(*f, "read_hits", sb.read_hits);
|
|
field(*f, "read_misses", sb.read_misses);
|
|
field(*f, "write_hits", sb.write_hits);
|
|
field(*f, "write_misses", sb.write_misses);
|
|
|
|
f->output(out, 0);
|
|
}
|
|
|
|
private:
|
|
block_manager::ptr bm_;
|
|
};
|
|
|
|
class uint64_show_traits : public uint64_traits {
|
|
public:
|
|
static void show(formatter::ptr f, string const &key, uint64_t const &value) {
|
|
field(*f, key, boost::lexical_cast<string>(value));
|
|
}
|
|
};
|
|
|
|
// FIXME: Expose the array ValueTraits parameter or not?
|
|
// Since the block_traits isn't related to the ValueTraits.
|
|
class block_show_traits : public persistent_data::array<caching::mapping_traits>::block_traits {
|
|
public:
|
|
static void show(formatter::ptr f, string const &key, block_address const &value) {
|
|
field(*f, "block", value);
|
|
}
|
|
};
|
|
|
|
class mapping_show_traits : public caching::mapping_traits {
|
|
public:
|
|
static void show(formatter::ptr f, string const &key, caching::mapping const &value) {
|
|
field(*f, "oblock", value.oblock_);
|
|
field(*f, "flags", value.flags_);
|
|
}
|
|
};
|
|
|
|
template <typename ValueTraits>
|
|
class show_btree_node : public dbg::command {
|
|
public:
|
|
explicit show_btree_node(block_manager::ptr bm)
|
|
: bm_(bm) {
|
|
}
|
|
|
|
virtual void exec(strings const &args, ostream &out) {
|
|
using namespace persistent_data::btree_detail;
|
|
|
|
if (args.size() != 2)
|
|
throw runtime_error("incorrect number of arguments");
|
|
|
|
block_address block = boost::lexical_cast<block_address>(args[1]);
|
|
block_manager::read_ref rr = bm_->read_lock(block);
|
|
|
|
node_ref<uint64_show_traits> n = btree_detail::to_node<uint64_show_traits>(rr);
|
|
if (n.get_type() == INTERNAL)
|
|
show_node<uint64_show_traits>(n, out);
|
|
else {
|
|
node_ref<ValueTraits> n = btree_detail::to_node<ValueTraits>(rr);
|
|
show_node<ValueTraits>(n, out);
|
|
}
|
|
}
|
|
|
|
private:
|
|
template <typename VT>
|
|
void show_node(node_ref<VT> n, ostream &out) {
|
|
formatter::ptr f = create_xml_formatter();
|
|
|
|
field(*f, "csum", n.get_checksum());
|
|
field(*f, "blocknr", n.get_location());
|
|
field(*f, "type", n.get_type() == INTERNAL ? "internal" : "leaf");
|
|
field(*f, "nr_entries", n.get_nr_entries());
|
|
field(*f, "max_entries", n.get_max_entries());
|
|
field(*f, "value_size", n.get_value_size());
|
|
|
|
for (unsigned i = 0; i < n.get_nr_entries(); i++) {
|
|
formatter::ptr f2 = create_xml_formatter();
|
|
field(*f2, "key", n.key_at(i));
|
|
VT::show(f2, "value", n.value_at(i));
|
|
f->child("child", f2);
|
|
}
|
|
|
|
f->output(out, 0);
|
|
}
|
|
|
|
block_manager::ptr bm_;
|
|
};
|
|
|
|
template <typename ValueTraits>
|
|
class show_array_block : public dbg::command {
|
|
typedef array_block<ValueTraits, block_manager::read_ref> rblock;
|
|
public:
|
|
explicit show_array_block(block_manager::ptr bm)
|
|
: bm_(bm) {
|
|
}
|
|
|
|
virtual void exec(strings const& args, ostream &out) {
|
|
if (args.size() != 2)
|
|
throw runtime_error("incorrect number of arguments");
|
|
|
|
block_address block = boost::lexical_cast<block_address>(args[1]);
|
|
block_manager::read_ref rr = bm_->read_lock(block);
|
|
|
|
rblock b(rr, typename ValueTraits::ref_counter());
|
|
show_array_entries(b, out);
|
|
}
|
|
|
|
private:
|
|
void show_array_entries(rblock const& b, ostream &out) {
|
|
formatter::ptr f = create_xml_formatter();
|
|
uint32_t nr_entries = b.nr_entries();
|
|
|
|
field(*f, "max_entries", b.max_entries());
|
|
field(*f, "nr_entries", nr_entries);
|
|
field(*f, "value_size", b.value_size());
|
|
|
|
for (unsigned i = 0; i < nr_entries; i++) {
|
|
formatter::ptr f2 = create_xml_formatter();
|
|
field(*f2, "index", i);
|
|
ValueTraits::show(f2, "value", b.get(i));
|
|
f->child("child", f2);
|
|
}
|
|
|
|
f->output(out, 0);
|
|
}
|
|
|
|
block_manager::ptr bm_;
|
|
};
|
|
|
|
//--------------------------------
|
|
|
|
int debug(string const &path) {
|
|
using dbg::command;
|
|
|
|
try {
|
|
block_manager::ptr bm = open_bm(path, block_manager::READ_ONLY);
|
|
command_interpreter::ptr interp = create_command_interpreter(cin, cout);
|
|
interp->register_command("hello", command::ptr(new hello));
|
|
interp->register_command("superblock", command::ptr(new show_superblock(bm)));
|
|
interp->register_command("mapping_node", command::ptr(new show_btree_node<block_show_traits>(bm)));
|
|
interp->register_command("mapping_array", command::ptr(new show_array_block<mapping_show_traits>(bm)));
|
|
interp->register_command("help", command::ptr(new help));
|
|
interp->register_command("exit", command::ptr(new exit_handler(interp)));
|
|
interp->enter_main_loop();
|
|
|
|
} catch (std::exception &e) {
|
|
cerr << e.what();
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------
|
|
|
|
cache_debug_cmd::cache_debug_cmd()
|
|
: command("cache_debug")
|
|
{
|
|
}
|
|
|
|
void
|
|
cache_debug_cmd::usage(std::ostream &out) const
|
|
{
|
|
out << "Usage: " << get_name() << " {device|file}" << endl
|
|
<< "Options:" << endl
|
|
<< " {-h|--help}" << endl
|
|
<< " {-V|--version}" << endl;
|
|
}
|
|
|
|
int
|
|
cache_debug_cmd::run(int argc, char **argv)
|
|
{
|
|
int c;
|
|
const char shortopts[] = "hV";
|
|
const struct option longopts[] = {
|
|
{ "help", no_argument, NULL, 'h'},
|
|
{ "version", no_argument, NULL, 'V'},
|
|
{ NULL, no_argument, NULL, 0 }
|
|
};
|
|
|
|
while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
|
|
switch(c) {
|
|
case 'h':
|
|
usage(cout);
|
|
return 0;
|
|
|
|
case 'V':
|
|
cerr << THIN_PROVISIONING_TOOLS_VERSION << endl;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (argc == optind) {
|
|
usage(cerr);
|
|
exit(1);
|
|
}
|
|
|
|
return debug(argv[optind]);
|
|
}
|
|
|
|
//----------------------------------------------------------------
|