Details
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Improvement
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Resolution: Fixed
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Major
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Morpheus
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None
Description
For continuous backup to be able to restore, and for getting some collection information at backup time; we will need to be able to read SSTable files. To do this a C API will need to be exposed which will then be consumed using CGo.
This API will need to be opened up to a specific offset. It will also need to be able to get the current document, seek to the next and seek to a specific seqno. Below is a suggestion of the API
typedef struct {
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char *data;
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ssize_t len;
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} buffer_t;
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error_code_t magma_sstabble_file_reader_open(const char *path, uint64_t offset);
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error_code_t magma_sstable_file_reader_seek(sstable_file_reader_t *rdr, uint48_t seqno);
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error_code_t magma_sstable_file_reader_next(sstable_file_reader_t *rdr);
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error_code_t magma_sstable_file_reader_get_doc(sstable_file_reader_t *rdr, buffer_t *key, buffer_t *meta, buffer_t *value, uint48_t *seqno);
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