thin-provisioning-tools/contrib/tmakatos_emitter.h

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#ifndef _TMAKATOS_EMITTER_H_
#define _TMAKATOS_EMITTER_H_
#include "thin-provisioning/emitter.h"
#include <climits>
using namespace std;
using namespace thin_provisioning;
namespace tmakatos_emitter {
class binary_emitter : public emitter {
public:
binary_emitter(ostream &out);
void begin_superblock(string const &uuid,
uint64_t time,
uint64_t trans_id,
boost::optional<uint32_t> flags,
boost::optional<uint32_t> version,
uint32_t data_block_size,
uint64_t nr_data_blocks,
boost::optional<uint64_t> metadata_snap);
void end_superblock();
void begin_device(uint32_t dev_id,
uint64_t mapped_blocks,
uint64_t trans_id,
uint64_t creation_time,
uint64_t snap_time);
void end_device();
void begin_named_mapping(string const &name);
void end_named_mapping();
void identifier(string const &name);
void range_map(uint64_t origin_begin, uint64_t, uint32_t,
uint64_t len);
void single_map(uint64_t origin_block, uint64_t, uint32_t);
private:
ostream &out_;
/**
* The entire virtual block allocation bitmap is segmented into 64-bit
* sub-bitmaps (units).
*/
uint64_t bitmap;
/*
* Pointer to the current sub-bitmap (unit) that has not yet been
* emitted.
*/
uint64_t cur;
/**
* Unit (sub-bitmap) size. Must be a power of 2.
*/
static const size_t unit = sizeof bitmap * CHAR_BIT;
void emit_bmp(bool omit_if_zero = false);
};
}
#endif /* _TMAKATOS_EMITTER_H_ */