+++ /dev/null
-// -*- 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/Context.h"
-#include "include/stringify.h"
-#include "include/types.h"
-#include "common/errno.h"
-#include "common/Formatter.h"
-#include "common/TextTable.h"
-#include <iostream>
-#include <boost/program_options.hpp>
-#include "global/global_context.h"
-
-namespace rbd {
-
-namespace action {
-namespace list {
-
-namespace at = argument_types;
-namespace po = boost::program_options;
-
-enum WorkerState {
- STATE_IDLE = 0,
- STATE_OPENED,
- STATE_DONE
-} ;
-
-struct WorkerEntry {
- librbd::Image img;
- librbd::RBD::AioCompletion* completion;
- WorkerState state;
- string name;
-
- WorkerEntry() {
- state = STATE_IDLE;
- completion = nullptr;
- }
-};
-
-
-int list_process_image(librados::Rados* rados, WorkerEntry* w, bool lflag, Formatter *f, TextTable &tbl)
-{
- int r = 0;
- librbd::image_info_t info;
- std::string pool, image, snap, parent;
-
- // handle second-nth trips through loop
- r = w->img.parent_info(&pool, &image, &snap);
- if (r < 0 && r != -ENOENT)
- return r;
- bool has_parent = false;
- if (r != -ENOENT) {
- parent = pool + "/" + image + "@" + snap;
- has_parent = true;
- }
-
- if (w->img.stat(info, sizeof(info)) < 0) {
- return -EINVAL;
- }
-
- uint8_t old_format;
- w->img.old_format(&old_format);
-
- std::list<librbd::locker_t> lockers;
- bool exclusive;
- r = w->img.list_lockers(&lockers, &exclusive, NULL);
- if (r < 0)
- return r;
- std::string lockstr;
- if (!lockers.empty()) {
- lockstr = (exclusive) ? "excl" : "shr";
- }
-
- if (f) {
- f->open_object_section("image");
- f->dump_string("image", w->name);
- f->dump_unsigned("size", info.size);
- if (has_parent) {
- f->open_object_section("parent");
- f->dump_string("pool", pool);
- f->dump_string("image", image);
- f->dump_string("snapshot", snap);
- f->close_section();
- }
- f->dump_int("format", old_format ? 1 : 2);
- if (!lockers.empty())
- f->dump_string("lock_type", exclusive ? "exclusive" : "shared");
- f->close_section();
- } else {
- tbl << w->name
- << stringify(si_t(info.size))
- << parent
- << ((old_format) ? '1' : '2')
- << "" // protect doesn't apply to images
- << lockstr
- << TextTable::endrow;
- }
-
- std::vector<librbd::snap_info_t> snaplist;
- if (w->img.snap_list(snaplist) >= 0 && !snaplist.empty()) {
- for (std::vector<librbd::snap_info_t>::iterator s = snaplist.begin();
- s != snaplist.end(); ++s) {
- bool is_protected;
- bool has_parent = false;
- parent.clear();
- w->img.snap_set(s->name.c_str());
- r = w->img.snap_is_protected(s->name.c_str(), &is_protected);
- if (r < 0)
- return r;
- if (w->img.parent_info(&pool, &image, &snap) >= 0) {
- parent = pool + "/" + image + "@" + snap;
- has_parent = true;
- }
- if (f) {
- f->open_object_section("snapshot");
- f->dump_string("image", w->name);
- f->dump_string("snapshot", s->name);
- f->dump_unsigned("size", s->size);
- if (has_parent) {
- f->open_object_section("parent");
- f->dump_string("pool", pool);
- f->dump_string("image", image);
- f->dump_string("snapshot", snap);
- f->close_section();
- }
- f->dump_int("format", old_format ? 1 : 2);
- f->dump_string("protected", is_protected ? "true" : "false");
- f->close_section();
- } else {
- tbl << w->name + "@" + s->name
- << stringify(si_t(s->size))
- << parent
- << ((old_format) ? '1' : '2')
- << (is_protected ? "yes" : "")
- << "" // locks don't apply to snaps
- << TextTable::endrow;
- }
- }
- }
-
- return r < 0 ? r : 0;
-}
-
-int do_list(std::string &pool_name, bool lflag, int threads, Formatter *f) {
- std::vector<WorkerEntry*> workers;
- std::vector<std::string> names;
- librados::Rados rados;
- librbd::RBD rbd;
- librados::IoCtx ioctx;
-
- if (threads < 1) {
- threads = 1;
- }
- if (threads > 32) {
- threads = 32;
- }
-
- int r = utils::init(pool_name, &rados, &ioctx);
- if (r < 0) {
- return r;
- }
-
- r = rbd.list(ioctx, names);
- if (r < 0)
- return r;
-
- if (!lflag) {
- if (f)
- f->open_array_section("images");
- for (std::vector<std::string>::const_iterator i = names.begin();
- i != names.end(); ++i) {
- if (f)
- f->dump_string("name", *i);
- else
- std::cout << *i << std::endl;
- }
- if (f) {
- f->close_section();
- f->flush(std::cout);
- }
- return 0;
- }
-
- TextTable tbl;
-
- if (f) {
- f->open_array_section("images");
- } else {
- tbl.define_column("NAME", TextTable::LEFT, TextTable::LEFT);
- tbl.define_column("SIZE", TextTable::RIGHT, TextTable::RIGHT);
- tbl.define_column("PARENT", TextTable::LEFT, TextTable::LEFT);
- tbl.define_column("FMT", TextTable::RIGHT, TextTable::RIGHT);
- tbl.define_column("PROT", TextTable::LEFT, TextTable::LEFT);
- tbl.define_column("LOCK", TextTable::LEFT, TextTable::LEFT);
- }
-
- for (int left = 0; left < std::min(threads, (int)names.size()); left++) {
- workers.push_back(new WorkerEntry());
- }
-
- auto i = names.begin();
- while (true) {
- size_t workers_idle = 0;
- for (auto comp : workers) {
- switch (comp->state) {
- case STATE_DONE:
- comp->completion->wait_for_complete();
- comp->state = STATE_IDLE;
- comp->completion->release();
- comp->completion = nullptr;
- // we want it to fall through in this case
- case STATE_IDLE:
- if (i == names.end()) {
- workers_idle++;
- continue;
- }
- comp->name = *i;
- comp->completion = new librbd::RBD::AioCompletion(nullptr, nullptr);
- r = rbd.aio_open_read_only(ioctx, comp->img, i->c_str(), NULL, comp->completion);
- i++;
- comp->state = STATE_OPENED;
- break;
- case STATE_OPENED:
- comp->completion->wait_for_complete();
- // image might disappear between rbd.list() and rbd.open(); ignore
- // that, warn about other possible errors (EPERM, say, for opening
- // an old-format image, because you need execute permission for the
- // class method)
- r = comp->completion->get_return_value();
- comp->completion->release();
- if (r < 0) {
- if (r != -ENOENT) {
- std::cerr << "rbd: error opening " << *i << ": " << cpp_strerror(r)
- << std::endl;
- }
- // in any event, continue to next image
- comp->state = STATE_IDLE;
- continue;
- }
- r = list_process_image(&rados, comp, lflag, f, tbl);
- if (r < 0) {
- std::cerr << "rbd: error processing image " << comp->name << ": " << cpp_strerror(r)
- << std::endl;
- }
- comp->completion = new librbd::RBD::AioCompletion(nullptr, nullptr);
- r = comp->img.aio_close(comp->completion);
- comp->state = STATE_DONE;
- break;
- }
- }
- if (workers_idle == workers.size()) {
- break;
- }
- }
-
- if (f) {
- f->close_section();
- f->flush(std::cout);
- } else if (!names.empty()) {
- std::cout << tbl;
- }
-
- rados.shutdown();
-
- for (auto comp : workers) {
- delete comp;
- }
-
- return r < 0 ? r : 0;
-}
-
-void get_arguments(po::options_description *positional,
- po::options_description *options) {
- options->add_options()
- ("long,l", po::bool_switch(), "long listing format");
- at::add_pool_options(positional, options);
- at::add_format_options(options);
-}
-
-int execute(const po::variables_map &vm) {
- size_t arg_index = 0;
- std::string pool_name = utils::get_pool_name(vm, &arg_index);
-
- at::Format::Formatter formatter;
- int r = utils::get_formatter(vm, &formatter);
- if (r < 0) {
- return r;
- }
-
- r = do_list(pool_name, vm["long"].as<bool>(),
- g_conf->get_val<int64_t>("rbd_concurrent_management_ops"),
- formatter.get());
- if (r < 0) {
- std::cerr << "rbd: list: " << cpp_strerror(r) << std::endl;
- return r;
- }
-
- return 0;
-}
-
-Shell::SwitchArguments switched_arguments({"long", "l"});
-Shell::Action action(
- {"list"}, {"ls"}, "List rbd images.", "", &get_arguments, &execute);
-
-} // namespace list
-} // namespace action
-} // namespace rbd
Code Review / stor4nfv.git / blobdiff