70 lines
1.5 KiB
C++
70 lines
1.5 KiB
C++
#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_ */
|