Created
March 24, 2018 06:27
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Lua binding for RocksDB
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| local ffi = require("ffi") | |
| -- cut from https://github.com/facebook/rocksdb/blob/e59cb2a19b2971707d75552ae517586ca0785a6a/include/rocksdb/c.h | |
| ffi.cdef[[ | |
| /* Exported types */ | |
| typedef struct rocksdb_t rocksdb_t; | |
| typedef struct rocksdb_backup_engine_t rocksdb_backup_engine_t; | |
| typedef struct rocksdb_backup_engine_info_t rocksdb_backup_engine_info_t; | |
| typedef struct rocksdb_restore_options_t rocksdb_restore_options_t; | |
| typedef struct rocksdb_cache_t rocksdb_cache_t; | |
| typedef struct rocksdb_compactionfilter_t rocksdb_compactionfilter_t; | |
| typedef struct rocksdb_compactionfiltercontext_t | |
| rocksdb_compactionfiltercontext_t; | |
| typedef struct rocksdb_compactionfilterfactory_t | |
| rocksdb_compactionfilterfactory_t; | |
| typedef struct rocksdb_comparator_t rocksdb_comparator_t; | |
| typedef struct rocksdb_dbpath_t rocksdb_dbpath_t; | |
| typedef struct rocksdb_env_t rocksdb_env_t; | |
| typedef struct rocksdb_fifo_compaction_options_t rocksdb_fifo_compaction_options_t; | |
| typedef struct rocksdb_filelock_t rocksdb_filelock_t; | |
| typedef struct rocksdb_filterpolicy_t rocksdb_filterpolicy_t; | |
| typedef struct rocksdb_flushoptions_t rocksdb_flushoptions_t; | |
| typedef struct rocksdb_iterator_t rocksdb_iterator_t; | |
| typedef struct rocksdb_logger_t rocksdb_logger_t; | |
| typedef struct rocksdb_mergeoperator_t rocksdb_mergeoperator_t; | |
| typedef struct rocksdb_options_t rocksdb_options_t; | |
| typedef struct rocksdb_compactoptions_t rocksdb_compactoptions_t; | |
| typedef struct rocksdb_block_based_table_options_t | |
| rocksdb_block_based_table_options_t; | |
| typedef struct rocksdb_cuckoo_table_options_t | |
| rocksdb_cuckoo_table_options_t; | |
| typedef struct rocksdb_randomfile_t rocksdb_randomfile_t; | |
| typedef struct rocksdb_readoptions_t rocksdb_readoptions_t; | |
| typedef struct rocksdb_seqfile_t rocksdb_seqfile_t; | |
| typedef struct rocksdb_slicetransform_t rocksdb_slicetransform_t; | |
| typedef struct rocksdb_snapshot_t rocksdb_snapshot_t; | |
| typedef struct rocksdb_writablefile_t rocksdb_writablefile_t; | |
| typedef struct rocksdb_writebatch_t rocksdb_writebatch_t; | |
| typedef struct rocksdb_writebatch_wi_t rocksdb_writebatch_wi_t; | |
| typedef struct rocksdb_writeoptions_t rocksdb_writeoptions_t; | |
| typedef struct rocksdb_universal_compaction_options_t rocksdb_universal_compaction_options_t; | |
| typedef struct rocksdb_livefiles_t rocksdb_livefiles_t; | |
| typedef struct rocksdb_column_family_handle_t rocksdb_column_family_handle_t; | |
| typedef struct rocksdb_envoptions_t rocksdb_envoptions_t; | |
| typedef struct rocksdb_ingestexternalfileoptions_t rocksdb_ingestexternalfileoptions_t; | |
| typedef struct rocksdb_sstfilewriter_t rocksdb_sstfilewriter_t; | |
| typedef struct rocksdb_ratelimiter_t rocksdb_ratelimiter_t; | |
| typedef struct rocksdb_pinnableslice_t rocksdb_pinnableslice_t; | |
| typedef struct rocksdb_transactiondb_options_t rocksdb_transactiondb_options_t; | |
| typedef struct rocksdb_transactiondb_t rocksdb_transactiondb_t; | |
| typedef struct rocksdb_transaction_options_t rocksdb_transaction_options_t; | |
| typedef struct rocksdb_optimistictransactiondb_t | |
| rocksdb_optimistictransactiondb_t; | |
| typedef struct rocksdb_optimistictransaction_options_t | |
| rocksdb_optimistictransaction_options_t; | |
| typedef struct rocksdb_transaction_t rocksdb_transaction_t; | |
| typedef struct rocksdb_checkpoint_t rocksdb_checkpoint_t; | |
| /* DB operations */ | |
| extern rocksdb_t* rocksdb_open( | |
| const rocksdb_options_t* options, const char* name, char** errptr); | |
| extern rocksdb_t* rocksdb_open_for_read_only( | |
| const rocksdb_options_t* options, const char* name, | |
| unsigned char error_if_log_file_exist, char** errptr); | |
| extern rocksdb_backup_engine_t* rocksdb_backup_engine_open( | |
| const rocksdb_options_t* options, const char* path, char** errptr); | |
| extern void rocksdb_backup_engine_create_new_backup( | |
| rocksdb_backup_engine_t* be, rocksdb_t* db, char** errptr); | |
| extern void rocksdb_backup_engine_purge_old_backups( | |
| rocksdb_backup_engine_t* be, uint32_t num_backups_to_keep, char** errptr); | |
| extern rocksdb_restore_options_t* | |
| rocksdb_restore_options_create(); | |
| extern void rocksdb_restore_options_destroy( | |
| rocksdb_restore_options_t* opt); | |
| extern void rocksdb_restore_options_set_keep_log_files( | |
| rocksdb_restore_options_t* opt, int v); | |
| extern void | |
| rocksdb_backup_engine_restore_db_from_latest_backup( | |
| rocksdb_backup_engine_t* be, const char* db_dir, const char* wal_dir, | |
| const rocksdb_restore_options_t* restore_options, char** errptr); | |
| extern const rocksdb_backup_engine_info_t* | |
| rocksdb_backup_engine_get_backup_info(rocksdb_backup_engine_t* be); | |
| extern int rocksdb_backup_engine_info_count( | |
| const rocksdb_backup_engine_info_t* info); | |
| extern int64_t | |
| rocksdb_backup_engine_info_timestamp(const rocksdb_backup_engine_info_t* info, | |
| int index); | |
| extern uint32_t | |
| rocksdb_backup_engine_info_backup_id(const rocksdb_backup_engine_info_t* info, | |
| int index); | |
| extern uint64_t | |
| rocksdb_backup_engine_info_size(const rocksdb_backup_engine_info_t* info, | |
| int index); | |
| extern uint32_t rocksdb_backup_engine_info_number_files( | |
| const rocksdb_backup_engine_info_t* info, int index); | |
| extern void rocksdb_backup_engine_info_destroy( | |
| const rocksdb_backup_engine_info_t* info); | |
| extern void rocksdb_backup_engine_close( | |
| rocksdb_backup_engine_t* be); | |
| extern rocksdb_checkpoint_t* | |
| rocksdb_checkpoint_object_create(rocksdb_t* db, char** errptr); | |
| extern void rocksdb_checkpoint_create( | |
| rocksdb_checkpoint_t* checkpoint, const char* checkpoint_dir, | |
| uint64_t log_size_for_flush, char** errptr); | |
| extern void rocksdb_checkpoint_object_destroy( | |
| rocksdb_checkpoint_t* checkpoint); | |
| extern rocksdb_t* rocksdb_open_column_families( | |
| const rocksdb_options_t* options, const char* name, int num_column_families, | |
| const char** column_family_names, | |
| const rocksdb_options_t** column_family_options, | |
| rocksdb_column_family_handle_t** column_family_handles, char** errptr); | |
| extern rocksdb_t* | |
| rocksdb_open_for_read_only_column_families( | |
| const rocksdb_options_t* options, const char* name, int num_column_families, | |
| const char** column_family_names, | |
| const rocksdb_options_t** column_family_options, | |
| rocksdb_column_family_handle_t** column_family_handles, | |
| unsigned char error_if_log_file_exist, char** errptr); | |
| extern char** rocksdb_list_column_families( | |
| const rocksdb_options_t* options, const char* name, size_t* lencf, | |
| char** errptr); | |
| extern void rocksdb_list_column_families_destroy( | |
| char** list, size_t len); | |
| extern rocksdb_column_family_handle_t* | |
| rocksdb_create_column_family(rocksdb_t* db, | |
| const rocksdb_options_t* column_family_options, | |
| const char* column_family_name, char** errptr); | |
| extern void rocksdb_drop_column_family( | |
| rocksdb_t* db, rocksdb_column_family_handle_t* handle, char** errptr); | |
| extern void rocksdb_column_family_handle_destroy( | |
| rocksdb_column_family_handle_t*); | |
| extern void rocksdb_close(rocksdb_t* db); | |
| extern void rocksdb_put( | |
| rocksdb_t* db, const rocksdb_writeoptions_t* options, const char* key, | |
| size_t keylen, const char* val, size_t vallen, char** errptr); | |
| extern void rocksdb_put_cf( | |
| rocksdb_t* db, const rocksdb_writeoptions_t* options, | |
| rocksdb_column_family_handle_t* column_family, const char* key, | |
| size_t keylen, const char* val, size_t vallen, char** errptr); | |
| extern void rocksdb_delete( | |
| rocksdb_t* db, const rocksdb_writeoptions_t* options, const char* key, | |
| size_t keylen, char** errptr); | |
| extern void rocksdb_delete_cf( | |
| rocksdb_t* db, const rocksdb_writeoptions_t* options, | |
| rocksdb_column_family_handle_t* column_family, const char* key, | |
| size_t keylen, char** errptr); | |
| extern void rocksdb_merge( | |
| rocksdb_t* db, const rocksdb_writeoptions_t* options, const char* key, | |
| size_t keylen, const char* val, size_t vallen, char** errptr); | |
| extern void rocksdb_merge_cf( | |
| rocksdb_t* db, const rocksdb_writeoptions_t* options, | |
| rocksdb_column_family_handle_t* column_family, const char* key, | |
| size_t keylen, const char* val, size_t vallen, char** errptr); | |
| extern void rocksdb_write( | |
| rocksdb_t* db, const rocksdb_writeoptions_t* options, | |
| rocksdb_writebatch_t* batch, char** errptr); | |
| /* Returns NULL if not found. A malloc()ed array otherwise. | |
| Stores the length of the array in *vallen. */ | |
| extern char* rocksdb_get( | |
| rocksdb_t* db, const rocksdb_readoptions_t* options, const char* key, | |
| size_t keylen, size_t* vallen, char** errptr); | |
| extern char* rocksdb_get_cf( | |
| rocksdb_t* db, const rocksdb_readoptions_t* options, | |
| rocksdb_column_family_handle_t* column_family, const char* key, | |
| size_t keylen, size_t* vallen, char** errptr); | |
| // if values_list[i] == NULL and errs[i] == NULL, | |
| // then we got status.IsNotFound(), which we will not return. | |
| // all errors except status status.ok() and status.IsNotFound() are returned. | |
| // | |
| // errs, values_list and values_list_sizes must be num_keys in length, | |
| // allocated by the caller. | |
| // errs is a list of strings as opposed to the conventional one error, | |
| // where errs[i] is the status for retrieval of keys_list[i]. | |
| // each non-NULL errs entry is a malloc()ed, null terminated string. | |
| // each non-NULL values_list entry is a malloc()ed array, with | |
| // the length for each stored in values_list_sizes[i]. | |
| extern void rocksdb_multi_get( | |
| rocksdb_t* db, const rocksdb_readoptions_t* options, size_t num_keys, | |
| const char* const* keys_list, const size_t* keys_list_sizes, | |
| char** values_list, size_t* values_list_sizes, char** errs); | |
| extern void rocksdb_multi_get_cf( | |
| rocksdb_t* db, const rocksdb_readoptions_t* options, | |
| const rocksdb_column_family_handle_t* const* column_families, | |
| size_t num_keys, const char* const* keys_list, | |
| const size_t* keys_list_sizes, char** values_list, | |
| size_t* values_list_sizes, char** errs); | |
| extern rocksdb_iterator_t* rocksdb_create_iterator( | |
| rocksdb_t* db, const rocksdb_readoptions_t* options); | |
| extern rocksdb_iterator_t* rocksdb_create_iterator_cf( | |
| rocksdb_t* db, const rocksdb_readoptions_t* options, | |
| rocksdb_column_family_handle_t* column_family); | |
| extern void rocksdb_create_iterators( | |
| rocksdb_t *db, rocksdb_readoptions_t* opts, | |
| rocksdb_column_family_handle_t** column_families, | |
| rocksdb_iterator_t** iterators, size_t size, char** errptr); | |
| extern const rocksdb_snapshot_t* rocksdb_create_snapshot( | |
| rocksdb_t* db); | |
| extern void rocksdb_release_snapshot( | |
| rocksdb_t* db, const rocksdb_snapshot_t* snapshot); | |
| /* Returns NULL if property name is unknown. | |
| Else returns a pointer to a malloc()-ed null-terminated value. */ | |
| extern char* rocksdb_property_value(rocksdb_t* db, | |
| const char* propname); | |
| /* returns 0 on success, -1 otherwise */ | |
| int rocksdb_property_int( | |
| rocksdb_t* db, | |
| const char* propname, uint64_t *out_val); | |
| extern char* rocksdb_property_value_cf( | |
| rocksdb_t* db, rocksdb_column_family_handle_t* column_family, | |
| const char* propname); | |
| extern void rocksdb_approximate_sizes( | |
| rocksdb_t* db, int num_ranges, const char* const* range_start_key, | |
| const size_t* range_start_key_len, const char* const* range_limit_key, | |
| const size_t* range_limit_key_len, uint64_t* sizes); | |
| extern void rocksdb_approximate_sizes_cf( | |
| rocksdb_t* db, rocksdb_column_family_handle_t* column_family, | |
| int num_ranges, const char* const* range_start_key, | |
| const size_t* range_start_key_len, const char* const* range_limit_key, | |
| const size_t* range_limit_key_len, uint64_t* sizes); | |
| extern void rocksdb_compact_range(rocksdb_t* db, | |
| const char* start_key, | |
| size_t start_key_len, | |
| const char* limit_key, | |
| size_t limit_key_len); | |
| extern void rocksdb_compact_range_cf( | |
| rocksdb_t* db, rocksdb_column_family_handle_t* column_family, | |
| const char* start_key, size_t start_key_len, const char* limit_key, | |
| size_t limit_key_len); | |
| extern void rocksdb_compact_range_opt( | |
| rocksdb_t* db, rocksdb_compactoptions_t* opt, const char* start_key, | |
| size_t start_key_len, const char* limit_key, size_t limit_key_len); | |
| extern void rocksdb_compact_range_cf_opt( | |
| rocksdb_t* db, rocksdb_column_family_handle_t* column_family, | |
| rocksdb_compactoptions_t* opt, const char* start_key, size_t start_key_len, | |
| const char* limit_key, size_t limit_key_len); | |
| extern void rocksdb_delete_file(rocksdb_t* db, | |
| const char* name); | |
| extern const rocksdb_livefiles_t* rocksdb_livefiles( | |
| rocksdb_t* db); | |
| extern void rocksdb_flush( | |
| rocksdb_t* db, const rocksdb_flushoptions_t* options, char** errptr); | |
| extern void rocksdb_disable_file_deletions(rocksdb_t* db, | |
| char** errptr); | |
| extern void rocksdb_enable_file_deletions( | |
| rocksdb_t* db, unsigned char force, char** errptr); | |
| /* Management operations */ | |
| extern void rocksdb_destroy_db( | |
| const rocksdb_options_t* options, const char* name, char** errptr); | |
| extern void rocksdb_repair_db( | |
| const rocksdb_options_t* options, const char* name, char** errptr); | |
| /* Iterator */ | |
| extern void rocksdb_iter_destroy(rocksdb_iterator_t*); | |
| extern unsigned char rocksdb_iter_valid( | |
| const rocksdb_iterator_t*); | |
| extern void rocksdb_iter_seek_to_first(rocksdb_iterator_t*); | |
| extern void rocksdb_iter_seek_to_last(rocksdb_iterator_t*); | |
| extern void rocksdb_iter_seek(rocksdb_iterator_t*, | |
| const char* k, size_t klen); | |
| extern void rocksdb_iter_seek_for_prev(rocksdb_iterator_t*, | |
| const char* k, | |
| size_t klen); | |
| extern void rocksdb_iter_next(rocksdb_iterator_t*); | |
| extern void rocksdb_iter_prev(rocksdb_iterator_t*); | |
| extern const char* rocksdb_iter_key( | |
| const rocksdb_iterator_t*, size_t* klen); | |
| extern const char* rocksdb_iter_value( | |
| const rocksdb_iterator_t*, size_t* vlen); | |
| extern void rocksdb_iter_get_error( | |
| const rocksdb_iterator_t*, char** errptr); | |
| /* Write batch */ | |
| extern rocksdb_writebatch_t* rocksdb_writebatch_create(); | |
| extern rocksdb_writebatch_t* rocksdb_writebatch_create_from( | |
| const char* rep, size_t size); | |
| extern void rocksdb_writebatch_destroy( | |
| rocksdb_writebatch_t*); | |
| extern void rocksdb_writebatch_clear(rocksdb_writebatch_t*); | |
| extern int rocksdb_writebatch_count(rocksdb_writebatch_t*); | |
| extern void rocksdb_writebatch_put(rocksdb_writebatch_t*, | |
| const char* key, | |
| size_t klen, | |
| const char* val, | |
| size_t vlen); | |
| extern void rocksdb_writebatch_put_cf( | |
| rocksdb_writebatch_t*, rocksdb_column_family_handle_t* column_family, | |
| const char* key, size_t klen, const char* val, size_t vlen); | |
| extern void rocksdb_writebatch_putv( | |
| rocksdb_writebatch_t* b, int num_keys, const char* const* keys_list, | |
| const size_t* keys_list_sizes, int num_values, | |
| const char* const* values_list, const size_t* values_list_sizes); | |
| extern void rocksdb_writebatch_putv_cf( | |
| rocksdb_writebatch_t* b, rocksdb_column_family_handle_t* column_family, | |
| int num_keys, const char* const* keys_list, const size_t* keys_list_sizes, | |
| int num_values, const char* const* values_list, | |
| const size_t* values_list_sizes); | |
| extern void rocksdb_writebatch_merge(rocksdb_writebatch_t*, | |
| const char* key, | |
| size_t klen, | |
| const char* val, | |
| size_t vlen); | |
| extern void rocksdb_writebatch_merge_cf( | |
| rocksdb_writebatch_t*, rocksdb_column_family_handle_t* column_family, | |
| const char* key, size_t klen, const char* val, size_t vlen); | |
| extern void rocksdb_writebatch_mergev( | |
| rocksdb_writebatch_t* b, int num_keys, const char* const* keys_list, | |
| const size_t* keys_list_sizes, int num_values, | |
| const char* const* values_list, const size_t* values_list_sizes); | |
| extern void rocksdb_writebatch_mergev_cf( | |
| rocksdb_writebatch_t* b, rocksdb_column_family_handle_t* column_family, | |
| int num_keys, const char* const* keys_list, const size_t* keys_list_sizes, | |
| int num_values, const char* const* values_list, | |
| const size_t* values_list_sizes); | |
| extern void rocksdb_writebatch_delete(rocksdb_writebatch_t*, | |
| const char* key, | |
| size_t klen); | |
| extern void rocksdb_writebatch_delete_cf( | |
| rocksdb_writebatch_t*, rocksdb_column_family_handle_t* column_family, | |
| const char* key, size_t klen); | |
| extern void rocksdb_writebatch_deletev( | |
| rocksdb_writebatch_t* b, int num_keys, const char* const* keys_list, | |
| const size_t* keys_list_sizes); | |
| extern void rocksdb_writebatch_deletev_cf( | |
| rocksdb_writebatch_t* b, rocksdb_column_family_handle_t* column_family, | |
| int num_keys, const char* const* keys_list, const size_t* keys_list_sizes); | |
| extern void rocksdb_writebatch_delete_range( | |
| rocksdb_writebatch_t* b, const char* start_key, size_t start_key_len, | |
| const char* end_key, size_t end_key_len); | |
| extern void rocksdb_writebatch_delete_range_cf( | |
| rocksdb_writebatch_t* b, rocksdb_column_family_handle_t* column_family, | |
| const char* start_key, size_t start_key_len, const char* end_key, | |
| size_t end_key_len); | |
| extern void rocksdb_writebatch_delete_rangev( | |
| rocksdb_writebatch_t* b, int num_keys, const char* const* start_keys_list, | |
| const size_t* start_keys_list_sizes, const char* const* end_keys_list, | |
| const size_t* end_keys_list_sizes); | |
| extern void rocksdb_writebatch_delete_rangev_cf( | |
| rocksdb_writebatch_t* b, rocksdb_column_family_handle_t* column_family, | |
| int num_keys, const char* const* start_keys_list, | |
| const size_t* start_keys_list_sizes, const char* const* end_keys_list, | |
| const size_t* end_keys_list_sizes); | |
| extern void rocksdb_writebatch_put_log_data( | |
| rocksdb_writebatch_t*, const char* blob, size_t len); | |
| extern void rocksdb_writebatch_iterate( | |
| rocksdb_writebatch_t*, void* state, | |
| void (*put)(void*, const char* k, size_t klen, const char* v, size_t vlen), | |
| void (*deleted)(void*, const char* k, size_t klen)); | |
| extern const char* rocksdb_writebatch_data( | |
| rocksdb_writebatch_t*, size_t* size); | |
| extern void rocksdb_writebatch_set_save_point( | |
| rocksdb_writebatch_t*); | |
| extern void rocksdb_writebatch_rollback_to_save_point( | |
| rocksdb_writebatch_t*, char** errptr); | |
| extern void rocksdb_writebatch_pop_save_point( | |
| rocksdb_writebatch_t*, char** errptr); | |
| /* Write batch with index */ | |
| extern rocksdb_writebatch_wi_t* rocksdb_writebatch_wi_create( | |
| size_t reserved_bytes, | |
| unsigned char overwrite_keys); | |
| extern rocksdb_writebatch_wi_t* rocksdb_writebatch_wi_create_from( | |
| const char* rep, size_t size); | |
| extern void rocksdb_writebatch_wi_destroy( | |
| rocksdb_writebatch_wi_t*); | |
| extern void rocksdb_writebatch_wi_clear(rocksdb_writebatch_wi_t*); | |
| extern int rocksdb_writebatch_wi_count(rocksdb_writebatch_wi_t* b); | |
| extern void rocksdb_writebatch_wi_put(rocksdb_writebatch_wi_t*, | |
| const char* key, | |
| size_t klen, | |
| const char* val, | |
| size_t vlen); | |
| extern void rocksdb_writebatch_wi_put_cf( | |
| rocksdb_writebatch_wi_t*, rocksdb_column_family_handle_t* column_family, | |
| const char* key, size_t klen, const char* val, size_t vlen); | |
| extern void rocksdb_writebatch_wi_putv( | |
| rocksdb_writebatch_wi_t* b, int num_keys, const char* const* keys_list, | |
| const size_t* keys_list_sizes, int num_values, | |
| const char* const* values_list, const size_t* values_list_sizes); | |
| extern void rocksdb_writebatch_wi_putv_cf( | |
| rocksdb_writebatch_wi_t* b, rocksdb_column_family_handle_t* column_family, | |
| int num_keys, const char* const* keys_list, const size_t* keys_list_sizes, | |
| int num_values, const char* const* values_list, | |
| const size_t* values_list_sizes); | |
| extern void rocksdb_writebatch_wi_merge(rocksdb_writebatch_wi_t*, | |
| const char* key, | |
| size_t klen, | |
| const char* val, | |
| size_t vlen); | |
| extern void rocksdb_writebatch_wi_merge_cf( | |
| rocksdb_writebatch_wi_t*, rocksdb_column_family_handle_t* column_family, | |
| const char* key, size_t klen, const char* val, size_t vlen); | |
| extern void rocksdb_writebatch_wi_mergev( | |
| rocksdb_writebatch_wi_t* b, int num_keys, const char* const* keys_list, | |
| const size_t* keys_list_sizes, int num_values, | |
| const char* const* values_list, const size_t* values_list_sizes); | |
| extern void rocksdb_writebatch_wi_mergev_cf( | |
| rocksdb_writebatch_wi_t* b, rocksdb_column_family_handle_t* column_family, | |
| int num_keys, const char* const* keys_list, const size_t* keys_list_sizes, | |
| int num_values, const char* const* values_list, | |
| const size_t* values_list_sizes); | |
| extern void rocksdb_writebatch_wi_delete(rocksdb_writebatch_wi_t*, | |
| const char* key, | |
| size_t klen); | |
| extern void rocksdb_writebatch_wi_delete_cf( | |
| rocksdb_writebatch_wi_t*, rocksdb_column_family_handle_t* column_family, | |
| const char* key, size_t klen); | |
| extern void rocksdb_writebatch_wi_deletev( | |
| rocksdb_writebatch_wi_t* b, int num_keys, const char* const* keys_list, | |
| const size_t* keys_list_sizes); | |
| extern void rocksdb_writebatch_wi_deletev_cf( | |
| rocksdb_writebatch_wi_t* b, rocksdb_column_family_handle_t* column_family, | |
| int num_keys, const char* const* keys_list, const size_t* keys_list_sizes); | |
| extern void rocksdb_writebatch_wi_delete_range( | |
| rocksdb_writebatch_wi_t* b, const char* start_key, size_t start_key_len, | |
| const char* end_key, size_t end_key_len); | |
| extern void rocksdb_writebatch_wi_delete_range_cf( | |
| rocksdb_writebatch_wi_t* b, rocksdb_column_family_handle_t* column_family, | |
| const char* start_key, size_t start_key_len, const char* end_key, | |
| size_t end_key_len); | |
| extern void rocksdb_writebatch_wi_delete_rangev( | |
| rocksdb_writebatch_wi_t* b, int num_keys, const char* const* start_keys_list, | |
| const size_t* start_keys_list_sizes, const char* const* end_keys_list, | |
| const size_t* end_keys_list_sizes); | |
| extern void rocksdb_writebatch_wi_delete_rangev_cf( | |
| rocksdb_writebatch_wi_t* b, rocksdb_column_family_handle_t* column_family, | |
| int num_keys, const char* const* start_keys_list, | |
| const size_t* start_keys_list_sizes, const char* const* end_keys_list, | |
| const size_t* end_keys_list_sizes); | |
| extern void rocksdb_writebatch_wi_put_log_data( | |
| rocksdb_writebatch_wi_t*, const char* blob, size_t len); | |
| extern void rocksdb_writebatch_wi_iterate( | |
| rocksdb_writebatch_wi_t* b, | |
| void* state, | |
| void (*put)(void*, const char* k, size_t klen, const char* v, size_t vlen), | |
| void (*deleted)(void*, const char* k, size_t klen)); | |
| extern const char* rocksdb_writebatch_wi_data( | |
| rocksdb_writebatch_wi_t* b, | |
| size_t* size); | |
| extern void rocksdb_writebatch_wi_set_save_point( | |
| rocksdb_writebatch_wi_t*); | |
| extern void rocksdb_writebatch_wi_rollback_to_save_point( | |
| rocksdb_writebatch_wi_t*, char** errptr); | |
| extern char* rocksdb_writebatch_wi_get_from_batch( | |
| rocksdb_writebatch_wi_t* wbwi, | |
| const rocksdb_options_t* options, | |
| const char* key, size_t keylen, | |
| size_t* vallen, | |
| char** errptr); | |
| extern char* rocksdb_writebatch_wi_get_from_batch_cf( | |
| rocksdb_writebatch_wi_t* wbwi, | |
| const rocksdb_options_t* options, | |
| rocksdb_column_family_handle_t* column_family, | |
| const char* key, size_t keylen, | |
| size_t* vallen, | |
| char** errptr); | |
| extern char* rocksdb_writebatch_wi_get_from_batch_and_db( | |
| rocksdb_writebatch_wi_t* wbwi, | |
| rocksdb_t* db, | |
| const rocksdb_readoptions_t* options, | |
| const char* key, size_t keylen, | |
| size_t* vallen, | |
| char** errptr); | |
| extern char* rocksdb_writebatch_wi_get_from_batch_and_db_cf( | |
| rocksdb_writebatch_wi_t* wbwi, | |
| rocksdb_t* db, | |
| const rocksdb_readoptions_t* options, | |
| rocksdb_column_family_handle_t* column_family, | |
| const char* key, size_t keylen, | |
| size_t* vallen, | |
| char** errptr); | |
| extern void rocksdb_write_writebatch_wi( | |
| rocksdb_t* db, | |
| const rocksdb_writeoptions_t* options, | |
| rocksdb_writebatch_wi_t* wbwi, | |
| char** errptr); | |
| extern rocksdb_iterator_t* rocksdb_writebatch_wi_create_iterator_with_base( | |
| rocksdb_writebatch_wi_t* wbwi, | |
| rocksdb_iterator_t* base_iterator); | |
| extern rocksdb_iterator_t* rocksdb_writebatch_wi_create_iterator_with_base_cf( | |
| rocksdb_writebatch_wi_t* wbwi, | |
| rocksdb_iterator_t* base_iterator, | |
| rocksdb_column_family_handle_t* cf); | |
| /* Block based table options */ | |
| extern rocksdb_block_based_table_options_t* | |
| rocksdb_block_based_options_create(); | |
| extern void rocksdb_block_based_options_destroy( | |
| rocksdb_block_based_table_options_t* options); | |
| extern void rocksdb_block_based_options_set_block_size( | |
| rocksdb_block_based_table_options_t* options, size_t block_size); | |
| extern void | |
| rocksdb_block_based_options_set_block_size_deviation( | |
| rocksdb_block_based_table_options_t* options, int block_size_deviation); | |
| extern void | |
| rocksdb_block_based_options_set_block_restart_interval( | |
| rocksdb_block_based_table_options_t* options, int block_restart_interval); | |
| extern void rocksdb_block_based_options_set_filter_policy( | |
| rocksdb_block_based_table_options_t* options, | |
| rocksdb_filterpolicy_t* filter_policy); | |
| extern void rocksdb_block_based_options_set_no_block_cache( | |
| rocksdb_block_based_table_options_t* options, unsigned char no_block_cache); | |
| extern void rocksdb_block_based_options_set_block_cache( | |
| rocksdb_block_based_table_options_t* options, rocksdb_cache_t* block_cache); | |
| extern void | |
| rocksdb_block_based_options_set_block_cache_compressed( | |
| rocksdb_block_based_table_options_t* options, | |
| rocksdb_cache_t* block_cache_compressed); | |
| extern void | |
| rocksdb_block_based_options_set_whole_key_filtering( | |
| rocksdb_block_based_table_options_t*, unsigned char); | |
| extern void rocksdb_block_based_options_set_format_version( | |
| rocksdb_block_based_table_options_t*, int); | |
| enum { | |
| rocksdb_block_based_table_index_type_binary_search = 0, | |
| rocksdb_block_based_table_index_type_hash_search = 1, | |
| rocksdb_block_based_table_index_type_two_level_index_search = 2, | |
| }; | |
| extern void rocksdb_block_based_options_set_index_type( | |
| rocksdb_block_based_table_options_t*, int); // uses one of the above enums | |
| extern void | |
| rocksdb_block_based_options_set_hash_index_allow_collision( | |
| rocksdb_block_based_table_options_t*, unsigned char); | |
| extern void | |
| rocksdb_block_based_options_set_cache_index_and_filter_blocks( | |
| rocksdb_block_based_table_options_t*, unsigned char); | |
| extern void | |
| rocksdb_block_based_options_set_pin_l0_filter_and_index_blocks_in_cache( | |
| rocksdb_block_based_table_options_t*, unsigned char); | |
| extern void rocksdb_options_set_block_based_table_factory( | |
| rocksdb_options_t* opt, rocksdb_block_based_table_options_t* table_options); | |
| /* Cuckoo table options */ | |
| extern rocksdb_cuckoo_table_options_t* | |
| rocksdb_cuckoo_options_create(); | |
| extern void rocksdb_cuckoo_options_destroy( | |
| rocksdb_cuckoo_table_options_t* options); | |
| extern void rocksdb_cuckoo_options_set_hash_ratio( | |
| rocksdb_cuckoo_table_options_t* options, double v); | |
| extern void rocksdb_cuckoo_options_set_max_search_depth( | |
| rocksdb_cuckoo_table_options_t* options, uint32_t v); | |
| extern void rocksdb_cuckoo_options_set_cuckoo_block_size( | |
| rocksdb_cuckoo_table_options_t* options, uint32_t v); | |
| extern void | |
| rocksdb_cuckoo_options_set_identity_as_first_hash( | |
| rocksdb_cuckoo_table_options_t* options, unsigned char v); | |
| extern void rocksdb_cuckoo_options_set_use_module_hash( | |
| rocksdb_cuckoo_table_options_t* options, unsigned char v); | |
| extern void rocksdb_options_set_cuckoo_table_factory( | |
| rocksdb_options_t* opt, rocksdb_cuckoo_table_options_t* table_options); | |
| /* Options */ | |
| extern void rocksdb_set_options( | |
| rocksdb_t* db, int count, const char* const keys[], const char* const values[], char** errptr); | |
| extern rocksdb_options_t* rocksdb_options_create(); | |
| extern void rocksdb_options_destroy(rocksdb_options_t*); | |
| extern void rocksdb_options_increase_parallelism( | |
| rocksdb_options_t* opt, int total_threads); | |
| extern void rocksdb_options_optimize_for_point_lookup( | |
| rocksdb_options_t* opt, uint64_t block_cache_size_mb); | |
| extern void rocksdb_options_optimize_level_style_compaction( | |
| rocksdb_options_t* opt, uint64_t memtable_memory_budget); | |
| extern void | |
| rocksdb_options_optimize_universal_style_compaction( | |
| rocksdb_options_t* opt, uint64_t memtable_memory_budget); | |
| extern void rocksdb_options_set_compaction_filter( | |
| rocksdb_options_t*, rocksdb_compactionfilter_t*); | |
| extern void rocksdb_options_set_compaction_filter_factory( | |
| rocksdb_options_t*, rocksdb_compactionfilterfactory_t*); | |
| extern void rocksdb_options_compaction_readahead_size( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_comparator( | |
| rocksdb_options_t*, rocksdb_comparator_t*); | |
| extern void rocksdb_options_set_merge_operator( | |
| rocksdb_options_t*, rocksdb_mergeoperator_t*); | |
| extern void rocksdb_options_set_uint64add_merge_operator( | |
| rocksdb_options_t*); | |
| extern void rocksdb_options_set_compression_per_level( | |
| rocksdb_options_t* opt, int* level_values, size_t num_levels); | |
| extern void rocksdb_options_set_create_if_missing( | |
| rocksdb_options_t*, unsigned char); | |
| extern void | |
| rocksdb_options_set_create_missing_column_families(rocksdb_options_t*, | |
| unsigned char); | |
| extern void rocksdb_options_set_error_if_exists( | |
| rocksdb_options_t*, unsigned char); | |
| extern void rocksdb_options_set_paranoid_checks( | |
| rocksdb_options_t*, unsigned char); | |
| extern void rocksdb_options_set_db_paths(rocksdb_options_t*, | |
| const rocksdb_dbpath_t** path_values, | |
| size_t num_paths); | |
| extern void rocksdb_options_set_env(rocksdb_options_t*, | |
| rocksdb_env_t*); | |
| extern void rocksdb_options_set_info_log(rocksdb_options_t*, | |
| rocksdb_logger_t*); | |
| extern void rocksdb_options_set_info_log_level( | |
| rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_write_buffer_size( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_db_write_buffer_size( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_max_open_files( | |
| rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_max_file_opening_threads( | |
| rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_max_total_wal_size( | |
| rocksdb_options_t* opt, uint64_t n); | |
| extern void rocksdb_options_set_compression_options( | |
| rocksdb_options_t*, int, int, int, int); | |
| extern void rocksdb_options_set_prefix_extractor( | |
| rocksdb_options_t*, rocksdb_slicetransform_t*); | |
| extern void rocksdb_options_set_num_levels( | |
| rocksdb_options_t*, int); | |
| extern void | |
| rocksdb_options_set_level0_file_num_compaction_trigger(rocksdb_options_t*, int); | |
| extern void | |
| rocksdb_options_set_level0_slowdown_writes_trigger(rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_level0_stop_writes_trigger( | |
| rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_max_mem_compaction_level( | |
| rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_target_file_size_base( | |
| rocksdb_options_t*, uint64_t); | |
| extern void rocksdb_options_set_target_file_size_multiplier( | |
| rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_max_bytes_for_level_base( | |
| rocksdb_options_t*, uint64_t); | |
| extern void | |
| rocksdb_options_set_level_compaction_dynamic_level_bytes(rocksdb_options_t*, | |
| unsigned char); | |
| extern void | |
| rocksdb_options_set_max_bytes_for_level_multiplier(rocksdb_options_t*, double); | |
| extern void | |
| rocksdb_options_set_max_bytes_for_level_multiplier_additional( | |
| rocksdb_options_t*, int* level_values, size_t num_levels); | |
| extern void rocksdb_options_enable_statistics( | |
| rocksdb_options_t*); | |
| extern void | |
| rocksdb_options_set_skip_stats_update_on_db_open(rocksdb_options_t* opt, | |
| unsigned char val); | |
| /* returns a pointer to a malloc()-ed, null terminated string */ | |
| extern char* rocksdb_options_statistics_get_string( | |
| rocksdb_options_t* opt); | |
| extern void rocksdb_options_set_max_write_buffer_number( | |
| rocksdb_options_t*, int); | |
| extern void | |
| rocksdb_options_set_min_write_buffer_number_to_merge(rocksdb_options_t*, int); | |
| extern void | |
| rocksdb_options_set_max_write_buffer_number_to_maintain(rocksdb_options_t*, | |
| int); | |
| extern void rocksdb_options_set_max_background_compactions( | |
| rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_base_background_compactions( | |
| rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_max_background_flushes( | |
| rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_max_log_file_size( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_log_file_time_to_roll( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_keep_log_file_num( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_recycle_log_file_num( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_soft_rate_limit( | |
| rocksdb_options_t*, double); | |
| extern void rocksdb_options_set_hard_rate_limit( | |
| rocksdb_options_t*, double); | |
| extern void rocksdb_options_set_soft_pending_compaction_bytes_limit( | |
| rocksdb_options_t* opt, size_t v); | |
| extern void rocksdb_options_set_hard_pending_compaction_bytes_limit( | |
| rocksdb_options_t* opt, size_t v); | |
| extern void | |
| rocksdb_options_set_rate_limit_delay_max_milliseconds(rocksdb_options_t*, | |
| unsigned int); | |
| extern void rocksdb_options_set_max_manifest_file_size( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_table_cache_numshardbits( | |
| rocksdb_options_t*, int); | |
| extern void | |
| rocksdb_options_set_table_cache_remove_scan_count_limit(rocksdb_options_t*, | |
| int); | |
| extern void rocksdb_options_set_arena_block_size( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_use_fsync( | |
| rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_db_log_dir( | |
| rocksdb_options_t*, const char*); | |
| extern void rocksdb_options_set_wal_dir(rocksdb_options_t*, | |
| const char*); | |
| extern void rocksdb_options_set_WAL_ttl_seconds( | |
| rocksdb_options_t*, uint64_t); | |
| extern void rocksdb_options_set_WAL_size_limit_MB( | |
| rocksdb_options_t*, uint64_t); | |
| extern void rocksdb_options_set_manifest_preallocation_size( | |
| rocksdb_options_t*, size_t); | |
| extern void | |
| rocksdb_options_set_purge_redundant_kvs_while_flush(rocksdb_options_t*, | |
| unsigned char); | |
| extern void rocksdb_options_set_allow_mmap_reads( | |
| rocksdb_options_t*, unsigned char); | |
| extern void rocksdb_options_set_allow_mmap_writes( | |
| rocksdb_options_t*, unsigned char); | |
| extern void rocksdb_options_set_use_direct_reads( | |
| rocksdb_options_t*, unsigned char); | |
| extern void | |
| rocksdb_options_set_use_direct_io_for_flush_and_compaction(rocksdb_options_t*, | |
| unsigned char); | |
| extern void rocksdb_options_set_is_fd_close_on_exec( | |
| rocksdb_options_t*, unsigned char); | |
| extern void rocksdb_options_set_skip_log_error_on_recovery( | |
| rocksdb_options_t*, unsigned char); | |
| extern void rocksdb_options_set_stats_dump_period_sec( | |
| rocksdb_options_t*, unsigned int); | |
| extern void rocksdb_options_set_advise_random_on_open( | |
| rocksdb_options_t*, unsigned char); | |
| extern void | |
| rocksdb_options_set_access_hint_on_compaction_start(rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_use_adaptive_mutex( | |
| rocksdb_options_t*, unsigned char); | |
| extern void rocksdb_options_set_bytes_per_sync( | |
| rocksdb_options_t*, uint64_t); | |
| extern void rocksdb_options_set_wal_bytes_per_sync( | |
| rocksdb_options_t*, uint64_t); | |
| extern void | |
| rocksdb_options_set_writable_file_max_buffer_size(rocksdb_options_t*, uint64_t); | |
| extern void | |
| rocksdb_options_set_allow_concurrent_memtable_write(rocksdb_options_t*, | |
| unsigned char); | |
| extern void | |
| rocksdb_options_set_enable_write_thread_adaptive_yield(rocksdb_options_t*, | |
| unsigned char); | |
| extern void | |
| rocksdb_options_set_max_sequential_skip_in_iterations(rocksdb_options_t*, | |
| uint64_t); | |
| extern void rocksdb_options_set_disable_auto_compactions( | |
| rocksdb_options_t*, int); | |
| extern void rocksdb_options_set_optimize_filters_for_hits( | |
| rocksdb_options_t*, int); | |
| extern void | |
| rocksdb_options_set_delete_obsolete_files_period_micros(rocksdb_options_t*, | |
| uint64_t); | |
| extern void rocksdb_options_prepare_for_bulk_load( | |
| rocksdb_options_t*); | |
| extern void rocksdb_options_set_memtable_vector_rep( | |
| rocksdb_options_t*); | |
| extern void rocksdb_options_set_memtable_prefix_bloom_size_ratio( | |
| rocksdb_options_t*, double); | |
| extern void rocksdb_options_set_max_compaction_bytes( | |
| rocksdb_options_t*, uint64_t); | |
| extern void rocksdb_options_set_hash_skip_list_rep( | |
| rocksdb_options_t*, size_t, int32_t, int32_t); | |
| extern void rocksdb_options_set_hash_link_list_rep( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_plain_table_factory( | |
| rocksdb_options_t*, uint32_t, int, double, size_t); | |
| extern void rocksdb_options_set_min_level_to_compress( | |
| rocksdb_options_t* opt, int level); | |
| extern void rocksdb_options_set_memtable_huge_page_size( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_max_successive_merges( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_bloom_locality( | |
| rocksdb_options_t*, uint32_t); | |
| extern void rocksdb_options_set_inplace_update_support( | |
| rocksdb_options_t*, unsigned char); | |
| extern void rocksdb_options_set_inplace_update_num_locks( | |
| rocksdb_options_t*, size_t); | |
| extern void rocksdb_options_set_report_bg_io_stats( | |
| rocksdb_options_t*, int); | |
| enum { | |
| rocksdb_tolerate_corrupted_tail_records_recovery = 0, | |
| rocksdb_absolute_consistency_recovery = 1, | |
| rocksdb_point_in_time_recovery = 2, | |
| rocksdb_skip_any_corrupted_records_recovery = 3 | |
| }; | |
| extern void rocksdb_options_set_wal_recovery_mode( | |
| rocksdb_options_t*, int); | |
| enum { | |
| rocksdb_no_compression = 0, | |
| rocksdb_snappy_compression = 1, | |
| rocksdb_zlib_compression = 2, | |
| rocksdb_bz2_compression = 3, | |
| rocksdb_lz4_compression = 4, | |
| rocksdb_lz4hc_compression = 5, | |
| rocksdb_xpress_compression = 6, | |
| rocksdb_zstd_compression = 7 | |
| }; | |
| extern void rocksdb_options_set_compression( | |
| rocksdb_options_t*, int); | |
| enum { | |
| rocksdb_level_compaction = 0, | |
| rocksdb_universal_compaction = 1, | |
| rocksdb_fifo_compaction = 2 | |
| }; | |
| extern void rocksdb_options_set_compaction_style( | |
| rocksdb_options_t*, int); | |
| extern void | |
| rocksdb_options_set_universal_compaction_options( | |
| rocksdb_options_t*, rocksdb_universal_compaction_options_t*); | |
| extern void rocksdb_options_set_fifo_compaction_options( | |
| rocksdb_options_t* opt, rocksdb_fifo_compaction_options_t* fifo); | |
| extern void rocksdb_options_set_ratelimiter( | |
| rocksdb_options_t* opt, rocksdb_ratelimiter_t* limiter); | |
| /* RateLimiter */ | |
| extern rocksdb_ratelimiter_t* rocksdb_ratelimiter_create( | |
| int64_t rate_bytes_per_sec, int64_t refill_period_us, int32_t fairness); | |
| extern void rocksdb_ratelimiter_destroy(rocksdb_ratelimiter_t*); | |
| /* Compaction Filter */ | |
| extern rocksdb_compactionfilter_t* | |
| rocksdb_compactionfilter_create( | |
| void* state, void (*destructor)(void*), | |
| unsigned char (*filter)(void*, int level, const char* key, | |
| size_t key_length, const char* existing_value, | |
| size_t value_length, char** new_value, | |
| size_t* new_value_length, | |
| unsigned char* value_changed), | |
| const char* (*name)(void*)); | |
| extern void rocksdb_compactionfilter_set_ignore_snapshots( | |
| rocksdb_compactionfilter_t*, unsigned char); | |
| extern void rocksdb_compactionfilter_destroy( | |
| rocksdb_compactionfilter_t*); | |
| /* Compaction Filter Context */ | |
| extern unsigned char | |
| rocksdb_compactionfiltercontext_is_full_compaction( | |
| rocksdb_compactionfiltercontext_t* context); | |
| extern unsigned char | |
| rocksdb_compactionfiltercontext_is_manual_compaction( | |
| rocksdb_compactionfiltercontext_t* context); | |
| /* Compaction Filter Factory */ | |
| extern rocksdb_compactionfilterfactory_t* | |
| rocksdb_compactionfilterfactory_create( | |
| void* state, void (*destructor)(void*), | |
| rocksdb_compactionfilter_t* (*create_compaction_filter)( | |
| void*, rocksdb_compactionfiltercontext_t* context), | |
| const char* (*name)(void*)); | |
| extern void rocksdb_compactionfilterfactory_destroy( | |
| rocksdb_compactionfilterfactory_t*); | |
| /* Comparator */ | |
| extern rocksdb_comparator_t* rocksdb_comparator_create( | |
| void* state, void (*destructor)(void*), | |
| int (*compare)(void*, const char* a, size_t alen, const char* b, | |
| size_t blen), | |
| const char* (*name)(void*)); | |
| extern void rocksdb_comparator_destroy( | |
| rocksdb_comparator_t*); | |
| /* Filter policy */ | |
| extern rocksdb_filterpolicy_t* rocksdb_filterpolicy_create( | |
| void* state, void (*destructor)(void*), | |
| char* (*create_filter)(void*, const char* const* key_array, | |
| const size_t* key_length_array, int num_keys, | |
| size_t* filter_length), | |
| unsigned char (*key_may_match)(void*, const char* key, size_t length, | |
| const char* filter, size_t filter_length), | |
| void (*delete_filter)(void*, const char* filter, size_t filter_length), | |
| const char* (*name)(void*)); | |
| extern void rocksdb_filterpolicy_destroy( | |
| rocksdb_filterpolicy_t*); | |
| extern rocksdb_filterpolicy_t* | |
| rocksdb_filterpolicy_create_bloom(int bits_per_key); | |
| extern rocksdb_filterpolicy_t* | |
| rocksdb_filterpolicy_create_bloom_full(int bits_per_key); | |
| /* Merge Operator */ | |
| extern rocksdb_mergeoperator_t* | |
| rocksdb_mergeoperator_create( | |
| void* state, void (*destructor)(void*), | |
| char* (*full_merge)(void*, const char* key, size_t key_length, | |
| const char* existing_value, | |
| size_t existing_value_length, | |
| const char* const* operands_list, | |
| const size_t* operands_list_length, int num_operands, | |
| unsigned char* success, size_t* new_value_length), | |
| char* (*partial_merge)(void*, const char* key, size_t key_length, | |
| const char* const* operands_list, | |
| const size_t* operands_list_length, int num_operands, | |
| unsigned char* success, size_t* new_value_length), | |
| void (*delete_value)(void*, const char* value, size_t value_length), | |
| const char* (*name)(void*)); | |
| extern void rocksdb_mergeoperator_destroy( | |
| rocksdb_mergeoperator_t*); | |
| /* Read options */ | |
| extern rocksdb_readoptions_t* rocksdb_readoptions_create(); | |
| extern void rocksdb_readoptions_destroy( | |
| rocksdb_readoptions_t*); | |
| extern void rocksdb_readoptions_set_verify_checksums( | |
| rocksdb_readoptions_t*, unsigned char); | |
| extern void rocksdb_readoptions_set_fill_cache( | |
| rocksdb_readoptions_t*, unsigned char); | |
| extern void rocksdb_readoptions_set_snapshot( | |
| rocksdb_readoptions_t*, const rocksdb_snapshot_t*); | |
| extern void rocksdb_readoptions_set_iterate_upper_bound( | |
| rocksdb_readoptions_t*, const char* key, size_t keylen); | |
| extern void rocksdb_readoptions_set_read_tier( | |
| rocksdb_readoptions_t*, int); | |
| extern void rocksdb_readoptions_set_tailing( | |
| rocksdb_readoptions_t*, unsigned char); | |
| extern void rocksdb_readoptions_set_readahead_size( | |
| rocksdb_readoptions_t*, size_t); | |
| extern void rocksdb_readoptions_set_pin_data( | |
| rocksdb_readoptions_t*, unsigned char); | |
| extern void rocksdb_readoptions_set_total_order_seek( | |
| rocksdb_readoptions_t*, unsigned char); | |
| /* Write options */ | |
| extern rocksdb_writeoptions_t* | |
| rocksdb_writeoptions_create(); | |
| extern void rocksdb_writeoptions_destroy( | |
| rocksdb_writeoptions_t*); | |
| extern void rocksdb_writeoptions_set_sync( | |
| rocksdb_writeoptions_t*, unsigned char); | |
| extern void rocksdb_writeoptions_disable_WAL( | |
| rocksdb_writeoptions_t* opt, int disable); | |
| /* Compact range options */ | |
| extern rocksdb_compactoptions_t* | |
| rocksdb_compactoptions_create(); | |
| extern void rocksdb_compactoptions_destroy( | |
| rocksdb_compactoptions_t*); | |
| extern void | |
| rocksdb_compactoptions_set_exclusive_manual_compaction( | |
| rocksdb_compactoptions_t*, unsigned char); | |
| extern void rocksdb_compactoptions_set_change_level( | |
| rocksdb_compactoptions_t*, unsigned char); | |
| extern void rocksdb_compactoptions_set_target_level( | |
| rocksdb_compactoptions_t*, int); | |
| /* Flush options */ | |
| extern rocksdb_flushoptions_t* | |
| rocksdb_flushoptions_create(); | |
| extern void rocksdb_flushoptions_destroy( | |
| rocksdb_flushoptions_t*); | |
| extern void rocksdb_flushoptions_set_wait( | |
| rocksdb_flushoptions_t*, unsigned char); | |
| /* Cache */ | |
| extern rocksdb_cache_t* rocksdb_cache_create_lru( | |
| size_t capacity); | |
| extern void rocksdb_cache_destroy(rocksdb_cache_t* cache); | |
| extern void rocksdb_cache_set_capacity( | |
| rocksdb_cache_t* cache, size_t capacity); | |
| extern size_t | |
| rocksdb_cache_get_usage(rocksdb_cache_t* cache); | |
| extern size_t | |
| rocksdb_cache_get_pinned_usage(rocksdb_cache_t* cache); | |
| /* DBPath */ | |
| extern rocksdb_dbpath_t* rocksdb_dbpath_create(const char* path, uint64_t target_size); | |
| extern void rocksdb_dbpath_destroy(rocksdb_dbpath_t*); | |
| /* Env */ | |
| extern rocksdb_env_t* rocksdb_create_default_env(); | |
| extern rocksdb_env_t* rocksdb_create_mem_env(); | |
| extern void rocksdb_env_set_background_threads( | |
| rocksdb_env_t* env, int n); | |
| extern void | |
| rocksdb_env_set_high_priority_background_threads(rocksdb_env_t* env, int n); | |
| extern void rocksdb_env_join_all_threads( | |
| rocksdb_env_t* env); | |
| extern void rocksdb_env_destroy(rocksdb_env_t*); | |
| extern rocksdb_envoptions_t* rocksdb_envoptions_create(); | |
| extern void rocksdb_envoptions_destroy( | |
| rocksdb_envoptions_t* opt); | |
| /* SstFile */ | |
| extern rocksdb_sstfilewriter_t* | |
| rocksdb_sstfilewriter_create(const rocksdb_envoptions_t* env, | |
| const rocksdb_options_t* io_options); | |
| extern rocksdb_sstfilewriter_t* | |
| rocksdb_sstfilewriter_create_with_comparator( | |
| const rocksdb_envoptions_t* env, const rocksdb_options_t* io_options, | |
| const rocksdb_comparator_t* comparator); | |
| extern void rocksdb_sstfilewriter_open( | |
| rocksdb_sstfilewriter_t* writer, const char* name, char** errptr); | |
| extern void rocksdb_sstfilewriter_add( | |
| rocksdb_sstfilewriter_t* writer, const char* key, size_t keylen, | |
| const char* val, size_t vallen, char** errptr); | |
| extern void rocksdb_sstfilewriter_put( | |
| rocksdb_sstfilewriter_t* writer, const char* key, size_t keylen, | |
| const char* val, size_t vallen, char** errptr); | |
| extern void rocksdb_sstfilewriter_merge( | |
| rocksdb_sstfilewriter_t* writer, const char* key, size_t keylen, | |
| const char* val, size_t vallen, char** errptr); | |
| extern void rocksdb_sstfilewriter_delete( | |
| rocksdb_sstfilewriter_t* writer, const char* key, size_t keylen, | |
| char** errptr); | |
| extern void rocksdb_sstfilewriter_finish( | |
| rocksdb_sstfilewriter_t* writer, char** errptr); | |
| extern void rocksdb_sstfilewriter_destroy( | |
| rocksdb_sstfilewriter_t* writer); | |
| extern rocksdb_ingestexternalfileoptions_t* | |
| rocksdb_ingestexternalfileoptions_create(); | |
| extern void | |
| rocksdb_ingestexternalfileoptions_set_move_files( | |
| rocksdb_ingestexternalfileoptions_t* opt, unsigned char move_files); | |
| extern void | |
| rocksdb_ingestexternalfileoptions_set_snapshot_consistency( | |
| rocksdb_ingestexternalfileoptions_t* opt, | |
| unsigned char snapshot_consistency); | |
| extern void | |
| rocksdb_ingestexternalfileoptions_set_allow_global_seqno( | |
| rocksdb_ingestexternalfileoptions_t* opt, unsigned char allow_global_seqno); | |
| extern void | |
| rocksdb_ingestexternalfileoptions_set_allow_blocking_flush( | |
| rocksdb_ingestexternalfileoptions_t* opt, | |
| unsigned char allow_blocking_flush); | |
| extern void | |
| rocksdb_ingestexternalfileoptions_set_ingest_behind( | |
| rocksdb_ingestexternalfileoptions_t* opt, | |
| unsigned char ingest_behind); | |
| extern void rocksdb_ingestexternalfileoptions_destroy( | |
| rocksdb_ingestexternalfileoptions_t* opt); | |
| extern void rocksdb_ingest_external_file( | |
| rocksdb_t* db, const char* const* file_list, const size_t list_len, | |
| const rocksdb_ingestexternalfileoptions_t* opt, char** errptr); | |
| extern void rocksdb_ingest_external_file_cf( | |
| rocksdb_t* db, rocksdb_column_family_handle_t* handle, | |
| const char* const* file_list, const size_t list_len, | |
| const rocksdb_ingestexternalfileoptions_t* opt, char** errptr); | |
| /* SliceTransform */ | |
| extern rocksdb_slicetransform_t* | |
| rocksdb_slicetransform_create( | |
| void* state, void (*destructor)(void*), | |
| char* (*transform)(void*, const char* key, size_t length, | |
| size_t* dst_length), | |
| unsigned char (*in_domain)(void*, const char* key, size_t length), | |
| unsigned char (*in_range)(void*, const char* key, size_t length), | |
| const char* (*name)(void*)); | |
| extern rocksdb_slicetransform_t* | |
| rocksdb_slicetransform_create_fixed_prefix(size_t); | |
| extern rocksdb_slicetransform_t* | |
| rocksdb_slicetransform_create_noop(); | |
| extern void rocksdb_slicetransform_destroy( | |
| rocksdb_slicetransform_t*); | |
| /* Universal Compaction options */ | |
| enum { | |
| rocksdb_similar_size_compaction_stop_style = 0, | |
| rocksdb_total_size_compaction_stop_style = 1 | |
| }; | |
| extern rocksdb_universal_compaction_options_t* | |
| rocksdb_universal_compaction_options_create(); | |
| extern void | |
| rocksdb_universal_compaction_options_set_size_ratio( | |
| rocksdb_universal_compaction_options_t*, int); | |
| extern void | |
| rocksdb_universal_compaction_options_set_min_merge_width( | |
| rocksdb_universal_compaction_options_t*, int); | |
| extern void | |
| rocksdb_universal_compaction_options_set_max_merge_width( | |
| rocksdb_universal_compaction_options_t*, int); | |
| extern void | |
| rocksdb_universal_compaction_options_set_max_size_amplification_percent( | |
| rocksdb_universal_compaction_options_t*, int); | |
| extern void | |
| rocksdb_universal_compaction_options_set_compression_size_percent( | |
| rocksdb_universal_compaction_options_t*, int); | |
| extern void | |
| rocksdb_universal_compaction_options_set_stop_style( | |
| rocksdb_universal_compaction_options_t*, int); | |
| extern void rocksdb_universal_compaction_options_destroy( | |
| rocksdb_universal_compaction_options_t*); | |
| extern rocksdb_fifo_compaction_options_t* | |
| rocksdb_fifo_compaction_options_create(); | |
| extern void | |
| rocksdb_fifo_compaction_options_set_max_table_files_size( | |
| rocksdb_fifo_compaction_options_t* fifo_opts, uint64_t size); | |
| extern void rocksdb_fifo_compaction_options_destroy( | |
| rocksdb_fifo_compaction_options_t* fifo_opts); | |
| extern int rocksdb_livefiles_count( | |
| const rocksdb_livefiles_t*); | |
| extern const char* rocksdb_livefiles_name( | |
| const rocksdb_livefiles_t*, int index); | |
| extern int rocksdb_livefiles_level( | |
| const rocksdb_livefiles_t*, int index); | |
| extern size_t | |
| rocksdb_livefiles_size(const rocksdb_livefiles_t*, int index); | |
| extern const char* rocksdb_livefiles_smallestkey( | |
| const rocksdb_livefiles_t*, int index, size_t* size); | |
| extern const char* rocksdb_livefiles_largestkey( | |
| const rocksdb_livefiles_t*, int index, size_t* size); | |
| extern void rocksdb_livefiles_destroy( | |
| const rocksdb_livefiles_t*); | |
| /* Utility Helpers */ | |
| extern void rocksdb_get_options_from_string( | |
| const rocksdb_options_t* base_options, const char* opts_str, | |
| rocksdb_options_t* new_options, char** errptr); | |
| extern void rocksdb_delete_file_in_range( | |
| rocksdb_t* db, const char* start_key, size_t start_key_len, | |
| const char* limit_key, size_t limit_key_len, char** errptr); | |
| extern void rocksdb_delete_file_in_range_cf( | |
| rocksdb_t* db, rocksdb_column_family_handle_t* column_family, | |
| const char* start_key, size_t start_key_len, const char* limit_key, | |
| size_t limit_key_len, char** errptr); | |
| /* Transactions */ | |
| extern rocksdb_column_family_handle_t* | |
| rocksdb_transactiondb_create_column_family( | |
| rocksdb_transactiondb_t* txn_db, | |
| const rocksdb_options_t* column_family_options, | |
| const char* column_family_name, char** errptr); | |
| extern rocksdb_transactiondb_t* rocksdb_transactiondb_open( | |
| const rocksdb_options_t* options, | |
| const rocksdb_transactiondb_options_t* txn_db_options, const char* name, | |
| char** errptr); | |
| extern const rocksdb_snapshot_t* | |
| rocksdb_transactiondb_create_snapshot(rocksdb_transactiondb_t* txn_db); | |
| extern void rocksdb_transactiondb_release_snapshot( | |
| rocksdb_transactiondb_t* txn_db, const rocksdb_snapshot_t* snapshot); | |
| extern rocksdb_transaction_t* rocksdb_transaction_begin( | |
| rocksdb_transactiondb_t* txn_db, | |
| const rocksdb_writeoptions_t* write_options, | |
| const rocksdb_transaction_options_t* txn_options, | |
| rocksdb_transaction_t* old_txn); | |
| extern void rocksdb_transaction_commit( | |
| rocksdb_transaction_t* txn, char** errptr); | |
| extern void rocksdb_transaction_rollback( | |
| rocksdb_transaction_t* txn, char** errptr); | |
| extern void rocksdb_transaction_set_savepoint( | |
| rocksdb_transaction_t* txn); | |
| extern void rocksdb_transaction_rollback_to_savepoint( | |
| rocksdb_transaction_t* txn, char** errptr); | |
| extern void rocksdb_transaction_destroy( | |
| rocksdb_transaction_t* txn); | |
| // This snapshot should be freed using rocksdb_free | |
| extern const rocksdb_snapshot_t* | |
| rocksdb_transaction_get_snapshot(rocksdb_transaction_t* txn); | |
| extern char* rocksdb_transaction_get( | |
| rocksdb_transaction_t* txn, const rocksdb_readoptions_t* options, | |
| const char* key, size_t klen, size_t* vlen, char** errptr); | |
| extern char* rocksdb_transaction_get_cf( | |
| rocksdb_transaction_t* txn, const rocksdb_readoptions_t* options, | |
| rocksdb_column_family_handle_t* column_family, const char* key, size_t klen, | |
| size_t* vlen, char** errptr); | |
| extern char* rocksdb_transaction_get_for_update( | |
| rocksdb_transaction_t* txn, const rocksdb_readoptions_t* options, | |
| const char* key, size_t klen, size_t* vlen, unsigned char exclusive, | |
| char** errptr); | |
| extern char* rocksdb_transactiondb_get( | |
| rocksdb_transactiondb_t* txn_db, const rocksdb_readoptions_t* options, | |
| const char* key, size_t klen, size_t* vlen, char** errptr); | |
| extern char* rocksdb_transactiondb_get_cf( | |
| rocksdb_transactiondb_t* txn_db, const rocksdb_readoptions_t* options, | |
| rocksdb_column_family_handle_t* column_family, const char* key, | |
| size_t keylen, size_t* vallen, char** errptr); | |
| extern void rocksdb_transaction_put( | |
| rocksdb_transaction_t* txn, const char* key, size_t klen, const char* val, | |
| size_t vlen, char** errptr); | |
| extern void rocksdb_transaction_put_cf( | |
| rocksdb_transaction_t* txn, rocksdb_column_family_handle_t* column_family, | |
| const char* key, size_t klen, const char* val, size_t vlen, char** errptr); | |
| extern void rocksdb_transactiondb_put( | |
| rocksdb_transactiondb_t* txn_db, const rocksdb_writeoptions_t* options, | |
| const char* key, size_t klen, const char* val, size_t vlen, char** errptr); | |
| extern void rocksdb_transactiondb_put_cf( | |
| rocksdb_transactiondb_t* txn_db, const rocksdb_writeoptions_t* options, | |
| rocksdb_column_family_handle_t* column_family, const char* key, | |
| size_t keylen, const char* val, size_t vallen, char** errptr); | |
| extern void rocksdb_transactiondb_write( | |
| rocksdb_transactiondb_t* txn_db, const rocksdb_writeoptions_t* options, | |
| rocksdb_writebatch_t *batch, char** errptr); | |
| extern void rocksdb_transaction_merge( | |
| rocksdb_transaction_t* txn, const char* key, size_t klen, const char* val, | |
| size_t vlen, char** errptr); | |
| extern void rocksdb_transactiondb_merge( | |
| rocksdb_transactiondb_t* txn_db, const rocksdb_writeoptions_t* options, | |
| const char* key, size_t klen, const char* val, size_t vlen, char** errptr); | |
| extern void rocksdb_transaction_delete( | |
| rocksdb_transaction_t* txn, const char* key, size_t klen, char** errptr); | |
| extern void rocksdb_transaction_delete_cf( | |
| rocksdb_transaction_t* txn, rocksdb_column_family_handle_t* column_family, | |
| const char* key, size_t klen, char** errptr); | |
| extern void rocksdb_transactiondb_delete( | |
| rocksdb_transactiondb_t* txn_db, const rocksdb_writeoptions_t* options, | |
| const char* key, size_t klen, char** errptr); | |
| extern void rocksdb_transactiondb_delete_cf( | |
| rocksdb_transactiondb_t* txn_db, const rocksdb_writeoptions_t* options, | |
| rocksdb_column_family_handle_t* column_family, const char* key, | |
| size_t keylen, char** errptr); | |
| extern rocksdb_iterator_t* | |
| rocksdb_transaction_create_iterator(rocksdb_transaction_t* txn, | |
| const rocksdb_readoptions_t* options); | |
| extern rocksdb_iterator_t* | |
| rocksdb_transaction_create_iterator_cf( | |
| rocksdb_transaction_t* txn, const rocksdb_readoptions_t* options, | |
| rocksdb_column_family_handle_t* column_family); | |
| extern rocksdb_iterator_t* | |
| rocksdb_transactiondb_create_iterator(rocksdb_transactiondb_t* txn_db, | |
| const rocksdb_readoptions_t* options); | |
| extern void rocksdb_transactiondb_close( | |
| rocksdb_transactiondb_t* txn_db); | |
| extern rocksdb_checkpoint_t* | |
| rocksdb_transactiondb_checkpoint_object_create(rocksdb_transactiondb_t* txn_db, | |
| char** errptr); | |
| extern rocksdb_optimistictransactiondb_t* | |
| rocksdb_optimistictransactiondb_open(const rocksdb_options_t* options, | |
| const char* name, char** errptr); | |
| extern rocksdb_optimistictransactiondb_t* | |
| rocksdb_optimistictransactiondb_open_column_families( | |
| const rocksdb_options_t* options, const char* name, int num_column_families, | |
| const char** column_family_names, | |
| const rocksdb_options_t** column_family_options, | |
| rocksdb_column_family_handle_t** column_family_handles, char** errptr); | |
| extern rocksdb_t* | |
| rocksdb_optimistictransactiondb_get_base_db( | |
| rocksdb_optimistictransactiondb_t* otxn_db); | |
| extern void rocksdb_optimistictransactiondb_close_base_db( | |
| rocksdb_t* base_db); | |
| extern rocksdb_transaction_t* | |
| rocksdb_optimistictransaction_begin( | |
| rocksdb_optimistictransactiondb_t* otxn_db, | |
| const rocksdb_writeoptions_t* write_options, | |
| const rocksdb_optimistictransaction_options_t* otxn_options, | |
| rocksdb_transaction_t* old_txn); | |
| extern void rocksdb_optimistictransactiondb_close( | |
| rocksdb_optimistictransactiondb_t* otxn_db); | |
| /* Transaction Options */ | |
| extern rocksdb_transactiondb_options_t* | |
| rocksdb_transactiondb_options_create(); | |
| extern void rocksdb_transactiondb_options_destroy( | |
| rocksdb_transactiondb_options_t* opt); | |
| extern void rocksdb_transactiondb_options_set_max_num_locks( | |
| rocksdb_transactiondb_options_t* opt, int64_t max_num_locks); | |
| extern void rocksdb_transactiondb_options_set_num_stripes( | |
| rocksdb_transactiondb_options_t* opt, size_t num_stripes); | |
| extern void | |
| rocksdb_transactiondb_options_set_transaction_lock_timeout( | |
| rocksdb_transactiondb_options_t* opt, int64_t txn_lock_timeout); | |
| extern void | |
| rocksdb_transactiondb_options_set_default_lock_timeout( | |
| rocksdb_transactiondb_options_t* opt, int64_t default_lock_timeout); | |
| extern rocksdb_transaction_options_t* | |
| rocksdb_transaction_options_create(); | |
| extern void rocksdb_transaction_options_destroy( | |
| rocksdb_transaction_options_t* opt); | |
| extern void rocksdb_transaction_options_set_set_snapshot( | |
| rocksdb_transaction_options_t* opt, unsigned char v); | |
| extern void rocksdb_transaction_options_set_deadlock_detect( | |
| rocksdb_transaction_options_t* opt, unsigned char v); | |
| extern void rocksdb_transaction_options_set_lock_timeout( | |
| rocksdb_transaction_options_t* opt, int64_t lock_timeout); | |
| extern void rocksdb_transaction_options_set_expiration( | |
| rocksdb_transaction_options_t* opt, int64_t expiration); | |
| extern void | |
| rocksdb_transaction_options_set_deadlock_detect_depth( | |
| rocksdb_transaction_options_t* opt, int64_t depth); | |
| extern void | |
| rocksdb_transaction_options_set_max_write_batch_size( | |
| rocksdb_transaction_options_t* opt, size_t size); | |
| extern rocksdb_optimistictransaction_options_t* | |
| rocksdb_optimistictransaction_options_create(); | |
| extern void rocksdb_optimistictransaction_options_destroy( | |
| rocksdb_optimistictransaction_options_t* opt); | |
| extern void | |
| rocksdb_optimistictransaction_options_set_set_snapshot( | |
| rocksdb_optimistictransaction_options_t* opt, unsigned char v); | |
| // referring to convention (3), this should be used by client | |
| // to free memory that was malloc()ed | |
| extern void rocksdb_free(void* ptr); | |
| extern rocksdb_pinnableslice_t* rocksdb_get_pinned( | |
| rocksdb_t* db, const rocksdb_readoptions_t* options, const char* key, | |
| size_t keylen, char** errptr); | |
| extern rocksdb_pinnableslice_t* rocksdb_get_pinned_cf( | |
| rocksdb_t* db, const rocksdb_readoptions_t* options, | |
| rocksdb_column_family_handle_t* column_family, const char* key, | |
| size_t keylen, char** errptr); | |
| extern void rocksdb_pinnableslice_destroy( | |
| rocksdb_pinnableslice_t* v); | |
| extern const char* rocksdb_pinnableslice_value( | |
| const rocksdb_pinnableslice_t* t, size_t* vlen); | |
| ]] | |
| local rocksdb = ffi.load('librocksdb', true) | |
| if not rocksdb then | |
| error("load rocksdb failed.") | |
| return | |
| end | |
| local function create_options(options) | |
| options = options or {} | |
| local c_options = rocksdb.rocksdb_options_create() | |
| if options.create_if_missing then rocksdb.rocksdb_options_set_create_if_missing(c_options,1) end | |
| if options.error_if_exists then rocksdb.rocksdb_options_set_error_if_exists(c_options,1) end | |
| if options.compression then rocksdb.rocksdb_options_set_compression(c_options,1) end | |
| return c_options | |
| end | |
| local function create_read_options(options) | |
| options = options or {} | |
| local c_options = rocksdb.rocksdb_readoptions_create() | |
| return c_options | |
| end | |
| local function create_write_options(options) | |
| options = options or {} | |
| local c_options = rocksdb.rocksdb_writeoptions_create() | |
| return c_options | |
| end | |
| local ok, new_tab = pcall(require, "table.new") | |
| if not ok or type(new_tab) ~= "function" then | |
| new_tab = function (narr, nrec) return {} end | |
| end | |
| local _M = new_tab(0, 20) | |
| _M._VERSION = '0.0.1' | |
| local _mt = {__index = _M} | |
| _M._db = nil | |
| _M._options = nil | |
| _M._batch = false | |
| _M._iterator = nil | |
| -- utils function | |
| function string.startswith(str, start) | |
| return string.sub(str, 1, str.len(start)) == start | |
| end | |
| -- end utils function | |
| function _M.new(self, filename, options) | |
| local ctx = {} | |
| setmetatable(ctx, _mt) | |
| self.__gc = function() | |
| if self._db then | |
| rocksdb.rocksdb_free(self._db) | |
| end | |
| end | |
| if options == nil then | |
| options = {create_if_missing=true, error_if_exists=false} | |
| end | |
| local c_options = create_options(options) | |
| local c_err = ffi.new("char*[1]") | |
| if self._db == nil then | |
| self._db = rocksdb.rocksdb_open(c_options, filename, c_err) | |
| rocksdb.rocksdb_options_destroy(c_options) | |
| end | |
| if c_err[0] ~= nil then | |
| error(ffi.string(c_err[0])) | |
| end | |
| return ctx | |
| end | |
| -- set key val | |
| function _M.set(self,key,val,options) | |
| local c_options = create_write_options(options) | |
| local c_err = ffi.new("char*[1]") | |
| rocksdb.rocksdb_put(self._db, c_options, key, #key, val, #val, c_err) | |
| rocksdb.rocksdb_writeoptions_destroy(c_options) | |
| if c_err[0] ~= nil then | |
| error(ffi.string(c_err[0])) | |
| end | |
| end | |
| -- batch set key val | |
| function _M.batch_set(self, stable, options) | |
| if type(stable) ~= "table" then | |
| error("stable is not table.") | |
| return nil | |
| end | |
| if self._batch then | |
| rocksdb.rocksdb_free(self._batch) | |
| end | |
| if self._options then | |
| rocksdb.rocksdb_writeoptions_destroy(self._options) | |
| end | |
| self._options = create_write_options(options) | |
| self._batch = rocksdb.rocksdb_writebatch_create() | |
| for key, val in pairs(stable) do | |
| rocksdb.rocksdb_writebatch_put(self._batch, key, #key, val, #val) | |
| end | |
| local c_err = ffi.new("char*[1]") | |
| rocksdb.rocksdb_write(self._db, self._options, self._batch, c_err) | |
| if c_err[0] ~= nil then | |
| error(ffi.string(c_err[0])) | |
| end | |
| end | |
| -- get key | |
| function _M.get(self, key, options) | |
| local c_options = create_read_options(options) | |
| local c_err = ffi.new("char*[1]") | |
| local c_size = ffi.new("size_t[1]") | |
| local c_result = rocksdb.rocksdb_get(self._db, c_options, key, #key, c_size, c_err) | |
| rocksdb.rocksdb_readoptions_destroy(c_options) | |
| if c_err[0] ~= nil then | |
| error(ffi.string(c_err[0])) | |
| elseif c_size[0] == 0 then | |
| return nil | |
| else | |
| return ffi.string(c_result,c_size[0]) | |
| end | |
| end | |
| -- del key | |
| function _M.del(self, key, options) | |
| local c_options = create_write_options(options) | |
| local c_err = ffi.new("char*[1]") | |
| rocksdb.rocksdb_delete(self._db, c_options, key, #key, c_err) | |
| rocksdb.rocksdb_writeoptions_destory(c_options) | |
| if c_err[0] ~= nil then | |
| error(ffi.string(c_err[0])) | |
| return false | |
| end | |
| return true | |
| end | |
| function _M.writeoptions_destroy(self) | |
| rocksdb.rocksdb_writeoptions_destroy(self._options) | |
| end | |
| function _M.readoptions_destroy(self) | |
| rocksdb.rocksdb_readoptions_destroy(self._options) | |
| end | |
| -- batch delete key | |
| function _M.batch_del(self, stable, options) | |
| if type(stable) ~= "table" then | |
| error("stable is not table.") | |
| return nil | |
| end | |
| if self._batch then | |
| rocksdb.rocksdb_free(self._batch) | |
| end | |
| if self._options then | |
| local ok, _ = pcall(_M.writeoptions_destroy, self) | |
| if not ok then | |
| rocksdb.rocksdb_readoptions_destroy(self._options) | |
| end | |
| end | |
| self._options = create_write_options(options) | |
| self._batch = rocksdb.rocksdb_writebatch_create() | |
| for _, val in pairs(stable) do | |
| rocksdb.rocksdb_writebatch_delete(self._batch, val, #val) | |
| end | |
| local c_err = ffi.new("char*[1]") | |
| rocksdb.rocksdb_write(self._db, self._options, self._batch, c_err) | |
| if c_err[0] ~= nil then | |
| error(ffi.string(c_err[0])) | |
| end | |
| end | |
| -- delete range | |
| function _M.delete_range(self, start, limit) | |
| local keys = {} | |
| self:iterator_new() | |
| self:iterator_seek(start) | |
| local key, _ = self:iterator_next() | |
| while key ~= nil and key < limit do | |
| table.insert(keys, key) | |
| key, _ = self:iterator_next() | |
| end | |
| if self._options then | |
| rocksdb.rocksdb_readoptions_destroy(self._options) | |
| end | |
| self._options = rocksdb.rocksdb_writeoptions_create() | |
| self:batch_del(keys) | |
| end | |
| -- delete file in range | |
| function _M.delete_file_in_range(self, start, limit) | |
| local c_err = ffi.new("char*[1]") | |
| rocksdb.rocksdb_delete_file_in_range(self._db, start, #start, limit, #limit, c_err) | |
| if c_err[0] ~= nil then | |
| error(ffi.string(c_err[0])) | |
| end | |
| end | |
| -- Prefix seek | |
| function _M.prefix_seek(self, prefix) | |
| local prefix_extractor = rocksdb.rocksdb_slicetransform_create_fixed_prefix(#prefix) | |
| local c_options = rocksdb.rocksdb_options_create() | |
| rocksdb.rocksdb_options_set_prefix_extractor(c_options, prefix_extractor) | |
| self:iterator_new() | |
| local keys = {} | |
| self:iterator_seek(prefix) | |
| local key, _ = self:iterator_next() | |
| while key ~= nil and string.startswith(key, prefix) do | |
| table.insert(keys, key) | |
| key, _ = self:iterator_next() | |
| end | |
| return keys | |
| end | |
| -- Prefix delete | |
| function _M.prefix_delete(self, prefix) | |
| local keys = self:prefix_seek(prefix) | |
| self:batch_del(keys) | |
| return #keys | |
| end | |
| -- compact range | |
| function _M.compact_range(self, start, limit) | |
| rocksdb.rocksdb_compact_range(self._db, start, #start, limit, #limit) | |
| end | |
| -- iterator operation | |
| function _M.iterator_new(self, options) | |
| if self._iterator then | |
| rocksdb.rocksdb_iter_destroy(self._iterator) | |
| local ok, _ = pcall(_M.readoptions_destroy, self) | |
| if not ok then | |
| rocksdb.rocksdb_writeoptions_destroy(self._options) | |
| end | |
| end | |
| -- if self._options then | |
| -- rocksdb.rocksdb_writeoptions_destroy(self._options) | |
| -- end | |
| self._options = create_read_options(options) | |
| self._iterator = rocksdb.rocksdb_create_iterator(self._db, self._options) | |
| end | |
| function _M.iterator_first(self) | |
| rocksdb.rocksdb_iter_seek_to_first(self._iterator) | |
| end | |
| function _M.iterator_last(self) | |
| rocksdb.rocksdb_iter_seek_to_last(self._iterator) | |
| end | |
| function _M.iterator_seek(self,key) | |
| rocksdb.rocksdb_iter_seek(self._iterator, key, #key) | |
| end | |
| function _M.iterator_next(self) | |
| rocksdb.rocksdb_iter_next(self._iterator) | |
| local valid = rocksdb.rocksdb_iter_valid(self._iterator) | |
| if valid == 0 then | |
| return nil | |
| end | |
| local c_key_size = ffi.new("size_t[1]") | |
| local c_key = rocksdb.rocksdb_iter_key(self._iterator, c_key_size) | |
| local key = ffi.string(c_key,c_key_size[0]) | |
| local c_value_size = ffi.new("size_t[1]") | |
| local c_value = rocksdb.rocksdb_iter_value(self._iterator, c_value_size) | |
| local value = ffi.string(c_value, c_value_size[0]) | |
| return key, value | |
| end | |
| -- close db | |
| function _M.close(self) | |
| rocksdb.rocksdb_close(self._db) | |
| end | |
| return _M |
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