thin-provisioning-tools/thin-provisioning/metadata_checker.h

// Copyright (C) 2011 Red Hat, Inc. All rights reserved.
//
// This file is part of the thin-provisioning-tools source.
//
// thin-provisioning-tools is free software: you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// thin-provisioning-tools is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with thin-provisioning-tools.  If not, see
// <http://www.gnu.org/licenses/>.

#ifndef METADATA_CHECKER_H
#define METADATA_CHECKER_H

#include "base/error_state.h"
#include "block-cache/block_cache.h"
#include "persistent-data/block.h"

//----------------------------------------------------------------

namespace thin_provisioning {
	struct check_options {
		enum data_mapping_options {
			DATA_MAPPING_NONE,
			DATA_MAPPING_LEVEL1,
			DATA_MAPPING_LEVEL2,
		};

		enum metadata_space_map_options {
			METADATA_SPACE_MAP_NONE,
			METADATA_SPACE_MAP_FULL,
		};

		check_options();

		void set_superblock_only();
		void set_skip_mappings();
		void set_override_mapping_root(bcache::block_address b);

		data_mapping_options check_data_mappings_;
		metadata_space_map_options check_metadata_space_map_;
		boost::optional<bcache::block_address> override_mapping_root_;
	};

	enum output_options {
		OUTPUT_NORMAL,
		OUTPUT_QUIET,
	};

	class metadata_checker {
	public:
		typedef boost::shared_ptr<metadata_checker> ptr;

		virtual ~metadata_checker() {}

		virtual base::error_state check() = 0;
	};

	metadata_checker::ptr
	create_base_checker(persistent_data::block_manager<>::ptr bm,
			    check_options const &check_opts,
			    output_options output_opts);
}

//----------------------------------------------------------------

#endif