thin-provisioning-tools/era/metadata.h

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#ifndef ERA_METADATA_H
#define ERA_METADATA_H
#include "base/endian_utils.h"
#include "persistent-data/block.h"
#include "persistent-data/data-structures/array.h"
#include "persistent-data/data-structures/bitset.h"
#include "persistent-data/space-maps/disk.h"
#include "persistent-data/transaction_manager.h"
#include "era/superblock.h"
#include "era/writeset_tree.h"
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#include "era/era_array.h"
//----------------------------------------------------------------
namespace era {
class metadata {
public:
enum open_type {
CREATE,
OPEN
};
typedef block_manager<>::read_ref read_ref;
typedef block_manager<>::write_ref write_ref;
typedef boost::shared_ptr<metadata> ptr;
metadata(block_manager<>::ptr bm, open_type ot);
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metadata(block_manager<>::ptr bm, block_address metadata_snap);
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void commit();
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typedef persistent_data::transaction_manager tm;
tm::ptr tm_;
superblock sb_;
checked_space_map::ptr metadata_sm_;
writeset_tree::ptr writeset_tree_;
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era_array::ptr era_array_;
private:
void create_metadata(block_manager<>::ptr bm);
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void open_metadata(block_manager<>::ptr bm,
block_address loc = SUPERBLOCK_LOCATION);
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void commit_space_map();
void commit_writesets();
void commit_era_array();
void commit_superblock();
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};
};
//----------------------------------------------------------------
#endif