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[base] introduce a command type that gets registered with the app

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This commit is contained in:
Joe Thornber
2016-01-08 12:51:52 +00:00
parent a709b9718b
commit c93e728ef4
28 changed files with 776 additions and 411 deletions
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33
thin-provisioning/thin_dump.cc
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@@ -100,7 +100,28 @@ namespace {
}
}
int thin_dump_main(int argc, char **argv)
//----------------------------------------------------------------
thin_dump_cmd::thin_dump_cmd()
: command("thin_dump")
{
}
void
thin_dump_cmd::usage(std::ostream &out) const
{
out << "Usage: " << get_name() << " [options] {device|file}" << endl
<< "Options:" << endl
<< " {-h|--help}" << endl
<< " {-f|--format} {xml|human_readable}" << endl
<< " {-r|--repair}" << endl
<< " {-m|--metadata-snap} [block#]" << endl
<< " {-o <xml file>}" << endl
<< " {-V|--version}" << endl;
}
int
thin_dump_cmd::run(int argc, char **argv)
{
int c;
char const *output = NULL;
@@ -123,7 +144,7 @@ int thin_dump_main(int argc, char **argv)
while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
switch(c) {
case 'h':
usage(cout, basename(argv[0]));
usage(cout);
return 0;
case 'f':
@@ -141,7 +162,7 @@ int thin_dump_main(int argc, char **argv)
metadata_snap = strtoull(optarg, &end_ptr, 10);
if (end_ptr == optarg) {
cerr << "couldn't parse <metadata_snap>" << endl;
usage(cerr, basename(argv[0]));
usage(cerr);
return 1;
}
@@ -158,20 +179,18 @@ int thin_dump_main(int argc, char **argv)
return 0;
default:
usage(cerr, basename(argv[0]));
usage(cerr);
return 1;
}
}
if (argc == optind) {
cerr << "No input file provided." << endl;
usage(cerr, basename(argv[0]));
usage(cerr);
return 1;
}
return dump(argv[optind], output, format, flags);
}
base::command thin_provisioning::thin_dump_cmd("thin_dump", thin_dump_main);
//----------------------------------------------------------------