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// -*- 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 "common/errno.h"
#include <iostream>
#include <boost/program_options.hpp>
namespace rbd {
namespace action {
namespace sparsify {
namespace at = argument_types;
namespace po = boost::program_options;
static int do_sparsify(librbd::Image& image, size_t sparse_size,
bool no_progress)
{
utils::ProgressContext pc("Image sparsify", no_progress);
int r = image.sparsify_with_progress(sparse_size, pc);
if (r < 0) {
pc.fail();
return r;
}
pc.finish();
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_no_progress_option(options);
at::add_sparse_size_option(options);
}
int execute(const po::variables_map &vm,
const std::vector<std::string> &ceph_global_init_args) {
size_t arg_index = 0;
std::string pool_name;
std::string namespace_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, &namespace_name,
&image_name, &snap_name, true, utils::SNAPSHOT_PRESENCE_NONE,
utils::SPEC_VALIDATION_NONE);
if (r < 0) {
return r;
}
librados::Rados rados;
librados::IoCtx io_ctx;
librbd::Image image;
r = utils::init_and_open_image(pool_name, namespace_name, image_name, "", "",
false, &rados, &io_ctx, &image);
if (r < 0) {
return r;
}
size_t sparse_size = utils::RBD_DEFAULT_SPARSE_SIZE;
if (vm.count(at::IMAGE_SPARSE_SIZE)) {
sparse_size = vm[at::IMAGE_SPARSE_SIZE].as<size_t>();
}
r = do_sparsify(image, sparse_size, vm[at::NO_PROGRESS].as<bool>());
if (r < 0) {
std::cerr << "rbd: sparsify error: " << cpp_strerror(r) << std::endl;
return r;
}
return 0;
}
Shell::Action action(
{"sparsify"}, {},
"Reclaim space for zeroed image extents.", "",
&get_arguments, &execute);
} // namespace sparsify
} // namespace action
} // namespace rbd
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