X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Ftools%2Frbd%2Faction%2FStatus.cc;fp=src%2Fceph%2Fsrc%2Ftools%2Frbd%2Faction%2FStatus.cc;h=7cd438a6ee7a7f96c9e6c5451c9fe3849407f89f;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git diff --git a/src/ceph/src/tools/rbd/action/Status.cc b/src/ceph/src/tools/rbd/action/Status.cc new file mode 100644 index 0000000..7cd438a --- /dev/null +++ b/src/ceph/src/tools/rbd/action/Status.cc @@ -0,0 +1,129 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#include "tools/rbd/ArgumentTypes.h" +#include "tools/rbd/Shell.h" +#include "tools/rbd/Utils.h" +#include "include/rbd_types.h" +#include "common/errno.h" +#include "common/Formatter.h" +#include +#include + +namespace rbd { +namespace action { +namespace status { + +namespace at = argument_types; +namespace po = boost::program_options; + +static int do_show_status(librados::IoCtx &io_ctx, librbd::Image &image, + const char *imgname, Formatter *f) +{ + uint8_t old_format; + int r; + std::string header_oid; + std::list watchers; + + r = image.old_format(&old_format); + if (r < 0) + return r; + + if (old_format) { + header_oid = imgname; + header_oid += RBD_SUFFIX; + } else { + std::string id; + r = image.get_id(&id); + if (r < 0) { + return r; + } + + header_oid = RBD_HEADER_PREFIX + id; + } + + r = io_ctx.list_watchers(header_oid, &watchers); + if (r < 0) + return r; + + if (f) + f->open_object_section("status"); + + if (f) { + f->open_array_section("watchers"); + for (std::list::iterator i = watchers.begin(); i != watchers.end(); ++i) { + f->open_object_section("watcher"); + f->dump_string("address", i->addr); + f->dump_unsigned("client", i->watcher_id); + f->dump_unsigned("cookie", i->cookie); + f->close_section(); + } + f->close_section(); + } else { + if (watchers.size()) { + std::cout << "Watchers:" << std::endl; + for (std::list::iterator i = watchers.begin(); + i != watchers.end(); ++i) { + std::cout << "\twatcher=" << i->addr << " client." << i->watcher_id + << " cookie=" << i->cookie << std::endl; + } + } else { + std::cout << "Watchers: none" << std::endl; + } + } + if (f) { + f->close_section(); + f->flush(std::cout); + } + + return 0; +} + +void get_arguments(po::options_description *positional, + po::options_description *options) { + at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE); + at::add_format_options(options); +} + +int execute(const po::variables_map &vm) { + size_t arg_index = 0; + std::string pool_name; + std::string image_name; + std::string snap_name; + int r = utils::get_pool_image_snapshot_names( + vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &image_name, + &snap_name, utils::SNAPSHOT_PRESENCE_NONE, utils::SPEC_VALIDATION_NONE); + if (r < 0) { + return r; + } + + at::Format::Formatter formatter; + r = utils::get_formatter(vm, &formatter); + if (r < 0) { + return r; + } + + librados::Rados rados; + librados::IoCtx io_ctx; + librbd::Image image; + r = utils::init_and_open_image(pool_name, image_name, "", "", true, &rados, + &io_ctx, &image); + if (r < 0) { + return r; + } + + r = do_show_status(io_ctx, image, image_name.c_str(), formatter.get()); + if (r < 0) { + std::cerr << "rbd: show status failed: " << cpp_strerror(r) << std::endl; + return r; + } + return 0; +} + +Shell::Action action( + {"status"}, {}, "Show the status of this image.", "", &get_arguments, + &execute); + +} // namespace status +} // namespace action +} // namespace rbd