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[thin_show_metadata] ncurses render

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This commit is contained in:
Joe Thornber 2016-02-26 12:50:17 +00:00
parent c4215c0cf6
commit e78de5d3ad
7 changed files with 358 additions and 66 deletions
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7
Makefile.in
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@ -106,7 +106,8 @@ SOURCE=\
DEVTOOLS_SOURCE=\
thin-provisioning/thin_generate_metadata.cc \
thin-provisioning/variable_chunk_stream.cc \
thin-provisioning/thin_show_metadata.cc
thin-provisioning/thin_show_metadata.cc \
ui/ui.cc
ifeq ("@DEVTOOLS@", "yes")
SOURCE+=$(DEVTOOLS_SOURCE)
@ -133,6 +134,10 @@ CXXFLAGS+=@LFS_FLAGS@
INCLUDES+=-I$(TOP_BUILDDIR) -I$(TOP_DIR) -I$(TOP_DIR)/thin-provisioning
LIBS:=-laio -lexpat
ifeq ("@DEVTOOLS@", "yes")
LIBS+=-lncurses
endif
ifeq ("@STATIC_CXX@", "yes")
CXXLIB+=-Wl,-Bstatic -lstdc++ -Wl,-Bdynamic -Wl,--as-needed
else

2
VERSION
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@ -1 +1 @@
0.6.2-rc3
0.7.0-dev

14
thin-provisioning/superblock.cc
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@ -146,22 +146,32 @@ namespace thin_provisioning {
}
}
superblock_detail::superblock read_superblock(block_manager<>::ptr bm, block_address location)
superblock_detail::superblock read_superblock(block_manager<> const &bm, block_address location)
{
using namespace superblock_detail;
superblock sb;
block_manager<>::read_ref r = bm->read_lock(location, superblock_validator());
block_manager<>::read_ref r = bm.read_lock(location, superblock_validator());
superblock_disk const *sbd = reinterpret_cast<superblock_disk const *>(r.data());
superblock_traits::unpack(*sbd, sb);
return sb;
}
superblock_detail::superblock read_superblock(block_manager<>::ptr bm, block_address location)
{
return read_superblock(*bm, location);
}
superblock_detail::superblock read_superblock(block_manager<>::ptr bm)
{
return read_superblock(bm, SUPERBLOCK_LOCATION);
}
superblock_detail::superblock read_superblock(block_manager<> const &bm)
{
return read_superblock(bm, SUPERBLOCK_LOCATION);
}
void write_superblock(block_manager<>::ptr bm, superblock_detail::superblock const &sb)
{
block_manager<>::write_ref w = bm->write_lock(SUPERBLOCK_LOCATION, superblock_validator());

2
thin-provisioning/superblock.h
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@ -128,6 +128,8 @@ namespace thin_provisioning {
// FIXME: should we put init_superblock in here too?
// FIXME: make the bm const, and pass by reference rather than ptr
superblock_detail::superblock read_superblock(persistent_data::block_manager<> const &bm);
superblock_detail::superblock read_superblock(persistent_data::block_manager<>::ptr bm);
superblock_detail::superblock read_superblock(persistent_data::block_manager<>::ptr bm,
persistent_data::block_address location);

343
thin-provisioning/thin_show_metadata.cc
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@ -5,6 +5,7 @@
#include "thin-provisioning/commands.h"
#include "thin-provisioning/metadata.h"
#include "thin-provisioning/superblock.h"
#include "ui/ui.h"
#include "version.h"
#include <iostream>
@ -12,82 +13,282 @@
#include <libgen.h>
#include <stdlib.h>
#include <stdexcept>
#include <memory>
using namespace persistent_data;
using namespace sm_disk_detail;
using namespace std;
using namespace thin_provisioning;
using namespace ui;
//----------------------------------------------------------------
namespace {
bool is_superblock(block_manager<>::read_ref &rr) {
using namespace superblock_detail;
class examiner {
public:
examiner(string const &name, int colour_pair, char rep)
: name_(name),
colour_pair_(colour_pair),
rep_(rep) {
}
superblock_disk const *sbd = reinterpret_cast<superblock_disk const *>(rr.data());
if (to_cpu<uint64_t>(sbd->magic_) == SUPERBLOCK_MAGIC) {
superblock sb;
superblock_traits::unpack(*sbd, sb);
cout << "metadata nr blocks: " << sb.metadata_nr_blocks_ << endl;
virtual ~examiner() {}
virtual bool recognise(block_manager<>::read_ref rr) const = 0;
// virtual void render_block(text_ui &ui, block_manager<>::read_ref rr) = 0;
string const &get_name() const {
return name_;
}
int get_color_pair() const {
return colour_pair_;
}
char get_rep() const {
return rep_;
}
private:
string name_;
int colour_pair_;
char rep_;
};
class raw_examiner : public examiner {
public:
raw_examiner()
: examiner("raw", 5, '?') {
}
virtual bool recognise(block_manager<>::read_ref rr) const {
return true;
}
};
return false;
}
bool is_bitmap_block(block_manager<>::read_ref &rr) {
bitmap_header const *data = reinterpret_cast<bitmap_header const *>(rr.data());
crc32c sum(BITMAP_CSUM_XOR);
sum.append(&data->not_used, MD_BLOCK_SIZE - sizeof(uint32_t));
return sum.get_sum() == to_cpu<uint32_t>(data->csum);
}
bool is_index_block(block_manager<>::read_ref &rr) {
metadata_index const *mi = reinterpret_cast<metadata_index const *>(rr.data());
crc32c sum(INDEX_CSUM_XOR);
sum.append(&mi->padding_, MD_BLOCK_SIZE - sizeof(uint32_t));
return sum.get_sum() == to_cpu<uint32_t>(mi->csum_);
}
bool is_btree_node(block_manager<>::read_ref &rr) {
using namespace btree_detail;
disk_node const *data = reinterpret_cast<disk_node const *>(rr.data());
node_header const *n = &data->header;
crc32c sum(BTREE_CSUM_XOR);
sum.append(&n->flags, MD_BLOCK_SIZE - sizeof(uint32_t));
return sum.get_sum() == to_cpu<uint32_t>(n->csum);
}
void show_blocks(string const &dev) {
block_manager<>::ptr bm = open_bm(dev, block_manager<>::READ_ONLY);
metadata md(bm, metadata::OPEN);
cout << "Metadata space map: nr_blocks = " << md.metadata_sm_->get_nr_blocks()
<< ", nr_free_blocks = " << md.metadata_sm_->get_nr_free()
<< endl;
cout << "Data space map: nr_blocks = " << md.data_sm_->get_nr_blocks()
<< ", nr_free_blocks = " << md.data_sm_->get_nr_free()
<< endl;
block_address nr_blocks = bm->get_nr_blocks();
for (block_address b = 0; b < nr_blocks; b++) {
block_manager<>::read_ref rr = bm->read_lock(b);
if (is_superblock(rr))
cout << b << ": superblock" << endl;
else if (is_bitmap_block(rr))
cout << b << ": bitmap block" << endl;
else if (is_btree_node(rr))
cout << b << ": btree_node" << endl;
else
cout << b << ": unknown" << endl;
class superblock_examiner : public examiner {
public:
superblock_examiner()
: examiner("superblock", 1, 'S') {
}
}
virtual bool recognise(block_manager<>::read_ref rr) const {
using namespace superblock_detail;
superblock_disk const *sbd = reinterpret_cast<superblock_disk const *>(rr.data());
if (to_cpu<uint64_t>(sbd->magic_) == SUPERBLOCK_MAGIC) {
superblock sb;
superblock_traits::unpack(*sbd, sb);
cout << "metadata nr blocks: " << sb.metadata_nr_blocks_ << endl;
return true;
}
return false;
}
};
class bitmap_examiner : public examiner {
public:
bitmap_examiner()
: examiner("bitmap", 2, ':') {
}
virtual bool recognise(block_manager<>::read_ref rr) const {
bitmap_header const *data = reinterpret_cast<bitmap_header const *>(rr.data());
crc32c sum(BITMAP_CSUM_XOR);
sum.append(&data->not_used, MD_BLOCK_SIZE - sizeof(uint32_t));
return sum.get_sum() == to_cpu<uint32_t>(data->csum);
}
};
class index_examiner : public examiner {
public:
index_examiner()
: examiner("index", 3, 'i') {
}
virtual bool recognise(block_manager<>::read_ref rr) const {
metadata_index const *mi = reinterpret_cast<metadata_index const *>(rr.data());
crc32c sum(INDEX_CSUM_XOR);
sum.append(&mi->padding_, MD_BLOCK_SIZE - sizeof(uint32_t));
return sum.get_sum() == to_cpu<uint32_t>(mi->csum_);
}
};
class btree_examiner : public examiner {
public:
btree_examiner(string const &name, int colour_pair, char c)
: examiner(name, colour_pair, c) {
}
bool is_btree_node(block_manager<>::read_ref rr) const {
using namespace btree_detail;
disk_node const *data = reinterpret_cast<disk_node const *>(rr.data());
node_header const *n = &data->header;
crc32c sum(BTREE_CSUM_XOR);
sum.append(&n->flags, MD_BLOCK_SIZE - sizeof(uint32_t));
return sum.get_sum() == to_cpu<uint32_t>(n->csum);
}
};
class dev_detail_examiner : public btree_examiner {
public:
dev_detail_examiner()
: btree_examiner("dev_details", 4, 'd') {
}
virtual bool recognise(block_manager<>::read_ref rr) const {
if (!btree_examiner::is_btree_node(rr))
return false;
using namespace btree_detail;
disk_node const *data = reinterpret_cast<disk_node const *>(rr.data());
node_header const *n = &data->header;
return to_cpu<uint32_t>(n->value_size) == sizeof(device_tree_detail::device_details_disk);
}
};
class ref_count_examiner : public btree_examiner {
public:
ref_count_examiner()
: btree_examiner("ref_count node", 6, 'r') {
}
virtual bool recognise(block_manager<>::read_ref rr) const {
if (!btree_examiner::is_btree_node(rr))
return false;
using namespace btree_detail;
disk_node const *data = reinterpret_cast<disk_node const *>(rr.data());
node_header const *n = &data->header;
return to_cpu<uint32_t>(n->value_size) == sizeof(uint32_t);
}
};
class mapping_examiner : public btree_examiner {
public:
mapping_examiner()
: btree_examiner("mapping node", 7, 'm') {
}
virtual bool recognise(block_manager<>::read_ref rr) const {
if (!btree_examiner::is_btree_node(rr))
return false;
using namespace btree_detail;
disk_node const *data = reinterpret_cast<disk_node const *>(rr.data());
node_header const *n = &data->header;
return to_cpu<uint32_t>(n->value_size) == sizeof(uint64_t);
}
};
class main_dialog {
public:
main_dialog(text_ui &ui,
block_manager<> const &bm)
: ui_(ui),
bm_(bm),
raw_examiner_(new raw_examiner()) {
examiners_.push_back(shared_ptr<examiner>(new superblock_examiner()));
examiners_.push_back(shared_ptr<examiner>(new bitmap_examiner()));
examiners_.push_back(shared_ptr<examiner>(new index_examiner()));
examiners_.push_back(shared_ptr<examiner>(new dev_detail_examiner()));
examiners_.push_back(shared_ptr<examiner>(new ref_count_examiner()));
examiners_.push_back(shared_ptr<examiner>(new mapping_examiner()));
}
void run() {
auto line_length = 80;
for (block_address b = 0; b < 2000; b++) {
block_manager<>::read_ref rr = bm_.read_lock(b);
if (!(b % line_length)) {
if (b > 0)
printw("\n");
printw("%8llu: ", b);
}
auto e = find_examiner(rr);
attron(COLOR_PAIR(e->get_color_pair()));
printw("%c", e->get_rep());
attroff(COLOR_PAIR(e->get_color_pair()));
}
printw("\n");
show_superblock();
}
private:
void show_superblock() {
auto sb = read_superblock(bm_);
printw("\n\nSuperblock at 0\n");
printw("data mapping root: %llu\n", sb.data_mapping_root_);
printw("device details root: %llu\n", sb.device_details_root_);
printw("data block size: %u\n", sb.data_block_size_);
printw("metadata nr blocks: %llu\n", sb.metadata_nr_blocks_);
}
shared_ptr<examiner> &find_examiner(block_manager<>::read_ref const &rr) {
for (shared_ptr<examiner> &e : examiners_) {
if (e->recognise(rr))
return e;
}
return raw_examiner_;
}
text_ui &ui_;
block_manager<> const &bm_;
list<shared_ptr<examiner>> examiners_;
shared_ptr<examiner> raw_examiner_;
#if 0
void show_superblock(text_ui &ui, superblock_detail::superblock const &sb) {
}
void show_blocks(text_ui &ui, string const &dev) {
metadata md(bm);
show_superblock(ui, md.sb_);
#if 0
cout << "Metadata space map: nr_blocks = " << md.metadata_sm_->get_nr_blocks()
<< ", nr_free_blocks = " << md.metadata_sm_->get_nr_free()
<< endl;
cout << "Data space map: nr_blocks = " << md.data_sm_->get_nr_blocks()
<< ", nr_free_blocks = " << md.data_sm_->get_nr_free()
<< endl;
block_address nr_blocks = bm->get_nr_blocks();
for (block_address b = 0; b < nr_blocks; b++) {
block_manager<>::read_ref rr = bm->read_lock(b);
if (is_superblock(rr))
cout << b << ": superblock" << endl;
else if (is_bitmap_block(rr))
cout << b << ": bitmap block" << endl;
else if (is_btree_node(rr))
cout << b << ": btree_node" << endl;
else
cout << b << ": unknown" << endl;
}
#endif
}
#endif
};
}
//----------------------------------------------------------------
@ -135,7 +336,25 @@ thin_show_metadata_cmd::run(int argc, char **argv)
}
try {
show_blocks(argv[optind]);
ui::text_ui ui;
block_manager<>::ptr bm = open_bm(argv[optind], block_manager<>::READ_ONLY, true);
main_dialog dialog(ui, *bm);
dialog.run();
#if 0
// show_blocks(ui, argv[optind]);
#endif
#if 0
attron(COLOR_PAIR(1));
printw("Hello, ");
attron(A_BOLD);
printw("world!\n");
attroff(A_BOLD);
attroff(COLOR_PAIR(1));
#endif
getch();
} catch (std::exception const &e) {
cerr << e.what() << endl;

36
ui/ui.cc Normal file
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@ -0,0 +1,36 @@
#include "ui/ui.h"
#include <ncurses.h>
using namespace ui;
//----------------------------------------------------------------
text_ui::text_ui()
{
initscr();
noecho();
start_color();
init_pair(1, COLOR_RED, COLOR_BLACK);
init_pair(2, COLOR_YELLOW, COLOR_BLACK);
init_pair(3, COLOR_BLUE, COLOR_BLACK);
init_pair(4, COLOR_GREEN, COLOR_BLACK);
init_pair(5, COLOR_YELLOW, COLOR_BLACK);
init_pair(6, COLOR_BLACK, COLOR_RED);
init_pair(7, COLOR_WHITE, COLOR_BLACK);
}
text_ui::~text_ui()
{
endwin();
}
void
text_ui::refresh()
{
refresh();
}
//----------------------------------------------------------------

20
ui/ui.h Normal file
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@ -0,0 +1,20 @@
#ifndef UI_UI_H
#include <ncurses.h>
//----------------------------------------------------------------
namespace ui {
class text_ui {
public:
text_ui();
~text_ui();
void refresh();
};
};
//----------------------------------------------------------------
#endif