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thin_repair

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This commit is contained in:
Joe Thornber 2013-06-19 12:39:28 +01:00
parent 0938d24ea1
commit 21074456ca
2 changed files with 102 additions and 0 deletions
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8
Makefile.in
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@ -25,6 +25,7 @@ PROGRAMS=\
thin_check \
thin_dump \
thin_restore \
thin_repair \
thin_rmap
all: $(PROGRAMS)
@ -69,6 +70,7 @@ PROGRAM_SOURCE=\
thin-provisioning/thin_check.cc \
thin-provisioning/thin_dump.cc \
thin-provisioning/thin_restore.cc \
thin-provisioning/thin_repair.cc \
thin-provisioning/thin_rmap.cc
CXX:=@CXX@
@ -124,6 +126,7 @@ lib/libpdata.a: $(PDATA_OBJECTS)
THIN_DEBUG_SOURCE=$(SOURCE)
THIN_DUMP_SOURCE=$(SOURCE)
THIN_REPAIR_SOURCE=$(SOURCE)
THIN_RESTORE_SOURCE=$(SOURCE)
THIN_CHECK_SOURCE=\
persistent-data/checksum.cc \
@ -164,6 +167,7 @@ THIN_RMAP_SOURCE=\
THIN_DEBUG_OBJECTS=$(subst .cc,.o,$(THIN_DEBUG_SOURCE))
THIN_DUMP_OBJECTS=$(subst .cc,.o,$(THIN_DUMP_SOURCE))
THIN_REPAIR_OBJECTS=$(subst .cc,.o,$(THIN_REPAIR_SOURCE))
THIN_RESTORE_OBJECTS=$(subst .cc,.o,$(THIN_RESTORE_SOURCE))
THIN_CHECK_OBJECTS=$(subst .cc,.o,$(THIN_CHECK_SOURCE))
THIN_RMAP_OBJECTS=$(subst .cc,.o,$(THIN_RMAP_SOURCE))
@ -172,6 +176,10 @@ thin_debug: $(THIN_DEBUG_OBJECTS) thin-provisioning/thin_debug.o
@echo " [LD] $@"
$(V) $(CXX) $(CXXFLAGS) -o $@ $+ $(LIBS) $(LIBEXPAT)
thin_repair: $(THIN_REPAIR_OBJECTS) thin-provisioning/thin_repair.o
@echo " [LD] $@"
$(V) $(CXX) $(CXXFLAGS) -o $@ $+ $(LIBS) $(LIBEXPAT)
thin_dump: $(THIN_DUMP_OBJECTS) thin-provisioning/thin_dump.o
@echo " [LD] $@"
$(V) $(CXX) $(CXXFLAGS) -o $@ $+ $(LIBS) $(LIBEXPAT)

94
thin-provisioning/thin_repair.cc Normal file
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@ -0,0 +1,94 @@
#include <iostream>
#include <getopt.h>
#include <libgen.h>
#include "human_readable_format.h"
#include "metadata_dumper.h"
#include "metadata.h"
#include "restore_emitter.h"
#include "version.h"
using namespace persistent_data;
using namespace std;
using namespace thin_provisioning;
namespace {
int repair(string const &old_path, string const &new_path) {
try {
// block size gets updated by the restorer
metadata::ptr new_md(new metadata(new_path, metadata::CREATE, 128, 0));
emitter::ptr e = create_restore_emitter(new_md);
metadata::ptr old_md(new metadata(old_path, metadata::OPEN));
metadata_dump(old_md, e, true);
} catch (std::exception &e) {
cerr << e.what() << endl;
return 1;
}
return 0;
}
void usage(ostream &out, string const &cmd) {
out << "Usage: " << cmd << " [options] {device|file}" << endl
<< "Options:" << endl
<< " {-h|--help}" << endl
<< " {-i|--input} <input metadata (binary format)>" << endl
<< " {-o|--output} <output metadata (binary format)>" << endl
<< " {-V|--version}" << endl;
}
}
int main(int argc, char **argv)
{
int c;
boost::optional<string> input_path, output_path;
const char shortopts[] = "hi:o:V";
const struct option longopts[] = {
{ "help", no_argument, NULL, 'h'},
{ "input", required_argument, NULL, 'i'},
{ "output", required_argument, NULL, 'o'},
{ "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, basename(argv[0]));
return 0;
case 'i':
input_path = optarg;
break;
case 'o':
output_path = optarg;
break;
case 'V':
cout << THIN_PROVISIONING_TOOLS_VERSION << endl;
return 0;
default:
usage(cerr, basename(argv[0]));
return 1;
}
}
if (!input_path) {
cerr << "no input file provided" << endl;
usage(cerr, basename(argv[0]));
return 1;
}
if (!output_path) {
cerr << "no output file provided" << endl;
usage(cerr, basename(argv[0]));
return 1;
}
return repair(*input_path, *output_path);
}