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