[thin_ls] more work on thin_ls
This commit is contained in:
Joe Thornber
parent
c3973c044c
commit
47bd31da8d
@ -29,6 +29,7 @@
|
||||
#include "thin-provisioning/commands.h"
|
||||
#include "persistent-data/file_utils.h"
|
||||
#include "boost/optional.hpp"
|
||||
#include "boost/lexical_cast.hpp"
|
||||
|
||||
using namespace boost;
|
||||
using namespace persistent_data;
|
||||
@ -39,6 +40,156 @@ using namespace thin_provisioning;
|
||||
//----------------------------------------------------------------
|
||||
|
||||
namespace {
|
||||
|
||||
enum disk_unit {
|
||||
UNIT_BYTE,
|
||||
UNIT_SECTOR,
|
||||
|
||||
// decimal multipliers
|
||||
UNIT_kB,
|
||||
UNIT_MB,
|
||||
UNIT_GB,
|
||||
UNIT_TB,
|
||||
UNIT_PB,
|
||||
|
||||
// binary mulitpliers
|
||||
UNIT_KiB,
|
||||
UNIT_MiB,
|
||||
UNIT_GiB,
|
||||
UNIT_TiB,
|
||||
UNIT_PiB
|
||||
};
|
||||
|
||||
unsigned long long disk_unit_multiplier(disk_unit u) {
|
||||
switch (u) {
|
||||
case UNIT_BYTE:
|
||||
return 1;
|
||||
|
||||
case UNIT_SECTOR:
|
||||
return 512;
|
||||
|
||||
case UNIT_kB:
|
||||
return 1000;
|
||||
|
||||
case UNIT_MB:
|
||||
return 1000000;
|
||||
|
||||
case UNIT_GB:
|
||||
return 1000000000ull;
|
||||
|
||||
case UNIT_TB:
|
||||
return 1000000000000ull;
|
||||
|
||||
case UNIT_PB:
|
||||
return 1000000000000000ull;
|
||||
|
||||
case UNIT_KiB:
|
||||
return 1024ull;
|
||||
|
||||
case UNIT_MiB:
|
||||
return 1024ull * 1024ull;
|
||||
|
||||
case UNIT_GiB:
|
||||
return 1024ull * 1024ull * 1024ull;
|
||||
|
||||
case UNIT_TiB:
|
||||
return 1024ull * 1024ull * 1024ull * 1024ull;
|
||||
|
||||
case UNIT_PiB:
|
||||
return 1024ull * 1024ull * 1024ull * 1024ull * 1024ull;
|
||||
}
|
||||
|
||||
throw runtime_error("unknown unit type");
|
||||
return 1;
|
||||
}
|
||||
|
||||
string format_disk_unit(unsigned long long numerator, disk_unit u) {
|
||||
numerator *= disk_unit_multiplier(u);
|
||||
unsigned i;
|
||||
for (i = 0; numerator >= 1024; i++)
|
||||
numerator /= 1024;
|
||||
|
||||
char const *extensions[] = {
|
||||
"", "KiB", "MiB", "GiB", "TiB", "PiB"
|
||||
};
|
||||
|
||||
// FIXME: check subscript of i
|
||||
return lexical_cast<string>(numerator) + " " + extensions[i];
|
||||
}
|
||||
|
||||
//------------------------------------------------
|
||||
|
||||
// FIXME: move to own file
|
||||
class grid_layout {
|
||||
public:
|
||||
typedef list<string> row;
|
||||
typedef list<row> grid;
|
||||
|
||||
grid_layout()
|
||||
: nr_fields_(0) {
|
||||
new_row();
|
||||
}
|
||||
|
||||
void render(ostream &out) {
|
||||
vector<unsigned> widths;
|
||||
calc_field_widths(widths);
|
||||
|
||||
grid::const_iterator row;
|
||||
for (row = grid_.begin(); row != grid_.end(); ++row) {
|
||||
row::const_iterator col;
|
||||
unsigned i;
|
||||
for (col = row->begin(), i = 0; col != row->end(); ++col, ++i)
|
||||
out << justify(widths[i], *col) << " ";
|
||||
out << "\n";
|
||||
}
|
||||
}
|
||||
|
||||
void new_row() {
|
||||
grid_.push_back(row());
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
void field(T const &t) {
|
||||
push_field(lexical_cast<string>(t));
|
||||
}
|
||||
|
||||
private:
|
||||
row ¤t_row() {
|
||||
return grid_.back();
|
||||
}
|
||||
|
||||
void push_field(string const &s) {
|
||||
current_row().push_back(s);
|
||||
nr_fields_ = max<unsigned>(nr_fields_, current_row().size());
|
||||
}
|
||||
|
||||
void calc_field_widths(vector<unsigned> &widths) const {
|
||||
widths.resize(nr_fields_, 0);
|
||||
|
||||
grid::const_iterator row;
|
||||
for (row = grid_.begin(); row != grid_.end(); ++row) {
|
||||
row::const_iterator col;
|
||||
unsigned i;
|
||||
for (col = row->begin(), i = 0; col != row->end(); ++col, ++i)
|
||||
widths[i] = max<unsigned>(widths[i], col->length());
|
||||
}
|
||||
}
|
||||
|
||||
string justify(unsigned width, string const &txt) const {
|
||||
if (txt.length() > width)
|
||||
throw runtime_error("string field too long, internal error");
|
||||
|
||||
string result(width - txt.length(), ' ');
|
||||
result += txt;
|
||||
return result;
|
||||
}
|
||||
|
||||
grid grid_;
|
||||
unsigned nr_fields_;
|
||||
};
|
||||
|
||||
//------------------------------------------------
|
||||
|
||||
class mapping_set {
|
||||
public:
|
||||
mapping_set(block_address nr_blocks)
|
||||
@ -74,14 +225,86 @@ namespace {
|
||||
|
||||
//------------------------------------------------
|
||||
|
||||
enum output_field {
|
||||
DEV_ID,
|
||||
MAPPED_BLOCKS,
|
||||
MAPPED_EXCL_BLOCKS,
|
||||
MAPPED_SHARED_BLOCKS,
|
||||
MAPPED,
|
||||
EXCLUSIVE,
|
||||
SHARED,
|
||||
TRANSACTION_ID,
|
||||
CREATION_TIME,
|
||||
SNAPSHOT_TIME
|
||||
};
|
||||
|
||||
string header(output_field const &f) {
|
||||
switch (f) {
|
||||
case DEV_ID:
|
||||
return "DEV";
|
||||
|
||||
case MAPPED_BLOCKS:
|
||||
return "BLOCKS";
|
||||
|
||||
case MAPPED_EXCL_BLOCKS:
|
||||
return "BLOCKS_EXCL";
|
||||
|
||||
case MAPPED_SHARED_BLOCKS:
|
||||
return "BLOCKS_SHARED";
|
||||
|
||||
case MAPPED:
|
||||
return "MAPPED";
|
||||
|
||||
case EXCLUSIVE:
|
||||
return "EXCLUSIVE";
|
||||
|
||||
case SHARED:
|
||||
return "SHARED";
|
||||
|
||||
case TRANSACTION_ID:
|
||||
return "TRANSACTION";
|
||||
|
||||
case CREATION_TIME:
|
||||
return "CREATION";
|
||||
|
||||
case SNAPSHOT_TIME:
|
||||
return "SNAPSHOT";
|
||||
}
|
||||
|
||||
return "<unknown>";
|
||||
}
|
||||
|
||||
void print_headers(grid_layout &out, vector<output_field> const &fields) {
|
||||
vector<output_field>::const_iterator it;
|
||||
for (it = fields.begin(); it != fields.end(); ++it)
|
||||
out.field(header(*it));
|
||||
|
||||
out.new_row();
|
||||
}
|
||||
|
||||
|
||||
struct flags {
|
||||
flags()
|
||||
: use_metadata_snap(false) {
|
||||
|
||||
fields.push_back(DEV_ID);
|
||||
fields.push_back(MAPPED_BLOCKS);
|
||||
fields.push_back(MAPPED_EXCL_BLOCKS);
|
||||
fields.push_back(MAPPED_SHARED_BLOCKS);
|
||||
fields.push_back(MAPPED);
|
||||
fields.push_back(EXCLUSIVE);
|
||||
fields.push_back(SHARED);
|
||||
fields.push_back(TRANSACTION_ID);
|
||||
fields.push_back(CREATION_TIME);
|
||||
fields.push_back(SNAPSHOT_TIME);
|
||||
}
|
||||
|
||||
bool use_metadata_snap;
|
||||
vector<output_field> fields;
|
||||
};
|
||||
|
||||
//------------------------------------------------
|
||||
|
||||
class mapping_pass1 : public mapping_tree_detail::mapping_visitor {
|
||||
public:
|
||||
mapping_pass1(mapping_set &mappings)
|
||||
@ -195,29 +418,103 @@ namespace {
|
||||
|
||||
//------------------------------------------------
|
||||
|
||||
int ls_(string const &path, ostream &out, struct flags &flags) {
|
||||
try {
|
||||
block_manager<>::ptr bm(open_bm(path, block_manager<>::READ_ONLY));
|
||||
metadata::ptr md(new metadata(bm));
|
||||
void ls_(string const &path, ostream &out, struct flags &flags) {
|
||||
grid_layout grid;
|
||||
|
||||
details_extractor de;
|
||||
device_tree_detail::damage_visitor::ptr dd_policy(details_damage_policy());
|
||||
walk_device_tree(*md->details_, de, *dd_policy);
|
||||
block_manager<>::ptr bm(open_bm(path, block_manager<>::READ_ONLY));
|
||||
metadata::ptr md;
|
||||
|
||||
mapping_set mappings(md->data_sm_->get_nr_blocks());
|
||||
if (flags.use_metadata_snap)
|
||||
md.reset(new metadata(bm, optional<block_address>()));
|
||||
else
|
||||
md.reset(new metadata(bm));
|
||||
|
||||
dd_map const &map = de.get_details();
|
||||
dd_map::const_iterator it;
|
||||
for (it = map.begin(); it != map.end(); ++it)
|
||||
pass1(md, mappings, it->first);
|
||||
details_extractor de;
|
||||
device_tree_detail::damage_visitor::ptr dd_policy(details_damage_policy());
|
||||
walk_device_tree(*md->details_, de, *dd_policy);
|
||||
|
||||
for (it = map.begin(); it != map.end(); ++it) {
|
||||
block_address exclusive = count_exclusives(md, mappings, it->first);
|
||||
mapping_set mappings(md->data_sm_->get_nr_blocks());
|
||||
|
||||
out << it->first << ": "
|
||||
<< it->second.mapped_blocks_ << " mapped blocks, "
|
||||
<< exclusive << " exclusive blocks\n";
|
||||
dd_map const &map = de.get_details();
|
||||
dd_map::const_iterator it;
|
||||
for (it = map.begin(); it != map.end(); ++it)
|
||||
pass1(md, mappings, it->first);
|
||||
|
||||
print_headers(grid, flags.fields);
|
||||
|
||||
for (it = map.begin(); it != map.end(); ++it) {
|
||||
vector<output_field>::const_iterator f;
|
||||
|
||||
optional<block_address> exclusive;
|
||||
|
||||
for (f = flags.fields.begin(); f != flags.fields.end(); ++f) {
|
||||
switch (*f) {
|
||||
case DEV_ID:
|
||||
grid.field(it->first);
|
||||
break;
|
||||
|
||||
case MAPPED_BLOCKS:
|
||||
grid.field(it->second.mapped_blocks_);
|
||||
break;
|
||||
|
||||
case MAPPED_EXCL_BLOCKS:
|
||||
if (!exclusive)
|
||||
exclusive = count_exclusives(md, mappings, it->first);
|
||||
grid.field(*exclusive);
|
||||
break;
|
||||
|
||||
case MAPPED_SHARED_BLOCKS:
|
||||
if (!exclusive)
|
||||
exclusive = count_exclusives(md, mappings, it->first);
|
||||
grid.field(it->second.mapped_blocks_ - *exclusive);
|
||||
break;
|
||||
|
||||
case MAPPED:
|
||||
grid.field(
|
||||
format_disk_unit(it->second.mapped_blocks_ *
|
||||
md->sb_.data_block_size_, UNIT_SECTOR));
|
||||
break;
|
||||
|
||||
case EXCLUSIVE:
|
||||
if (!exclusive)
|
||||
exclusive = count_exclusives(md, mappings, it->first);
|
||||
|
||||
grid.field(
|
||||
format_disk_unit(*exclusive * md->sb_.data_block_size_,
|
||||
UNIT_SECTOR));
|
||||
break;
|
||||
|
||||
case SHARED:
|
||||
if (!exclusive)
|
||||
exclusive = count_exclusives(md, mappings, it->first);
|
||||
|
||||
grid.field(
|
||||
format_disk_unit((it->second.mapped_blocks_ - *exclusive) *
|
||||
md->sb_.data_block_size_, UNIT_SECTOR));
|
||||
break;
|
||||
|
||||
|
||||
case TRANSACTION_ID:
|
||||
grid.field(it->second.transaction_id_);
|
||||
break;
|
||||
|
||||
case CREATION_TIME:
|
||||
grid.field(it->second.creation_time_);
|
||||
break;
|
||||
|
||||
case SNAPSHOT_TIME:
|
||||
grid.field(it->second.snapshotted_time_);
|
||||
}
|
||||
}
|
||||
grid.new_row();
|
||||
}
|
||||
|
||||
grid.render(out);
|
||||
}
|
||||
|
||||
int ls(string const &path, ostream &out, struct flags &flags) {
|
||||
try {
|
||||
ls_(path, out, flags);
|
||||
|
||||
} catch (std::exception &e) {
|
||||
cerr << e.what() << endl;
|
||||
@ -226,13 +523,6 @@ namespace {
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ls(string const &path, struct flags &flags) {
|
||||
return ls_(path, cout, flags);
|
||||
}
|
||||
|
||||
void usage(ostream &out, string const &cmd) {
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------
|
||||
@ -292,7 +582,7 @@ thin_ls_cmd::run(int argc, char **argv)
|
||||
return 1;
|
||||
}
|
||||
|
||||
return ls(argv[optind], flags);
|
||||
return ls(argv[optind], cout, flags);
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------
|
||||
|
||||
Loading…
Reference in New Issue
Block a user