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c.h
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
/* Copyright (c) 2011 The LevelDB Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file. See the AUTHORS file for names of contributors.
C bindings for rocksdb. May be useful as a stable ABI that can be
used by programs that keep rocksdb in a shared library, or for
a JNI api.
Does not support:
. getters for the option types
. custom comparators that implement key shortening
. capturing post-write-snapshot
. custom iter, db, env, cache implementations using just the C bindings
Some conventions:
(1) We expose just opaque struct pointers and functions to clients.
This allows us to change internal representations without having to
recompile clients.
(2) For simplicity, there is no equivalent to the Slice type. Instead,
the caller has to pass the pointer and length as separate
arguments.
(3) Errors are represented by a null-terminated c string. NULL
means no error. All operations that can raise an error are passed
a "char** errptr" as the last argument. One of the following must
be true on entry:
*errptr == NULL
*errptr points to a malloc()ed null-terminated error message
On success, a leveldb routine leaves *errptr unchanged.
On failure, leveldb frees the old value of *errptr and
set *errptr to a malloc()ed error message.
(4) Bools have the type unsigned char (0 == false; rest == true)
(5) All of the pointer arguments must be non-NULL.
*/
#pragma once
#ifdef _WIN32
#ifdef ROCKSDB_DLL
#ifdef ROCKSDB_LIBRARY_EXPORTS
#define ROCKSDB_LIBRARY_API __declspec(dllexport)
#else
#define ROCKSDB_LIBRARY_API __declspec(dllimport)
#endif
#else
#define ROCKSDB_LIBRARY_API
#endif
#else
#define ROCKSDB_LIBRARY_API
#endif
#ifdef __cplusplus
extern "C" {
#endif
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
/* 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_perfcontext_t rocksdb_perfcontext_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;
typedef struct rocksdb_wal_iterator_t rocksdb_wal_iterator_t;
typedef struct rocksdb_wal_readoptions_t rocksdb_wal_readoptions_t;
typedef struct rocksdb_memory_consumers_t rocksdb_memory_consumers_t;
typedef struct rocksdb_memory_usage_t rocksdb_memory_usage_t;
/* DB operations */
extern ROCKSDB_LIBRARY_API rocksdb_t* rocksdb_open(
const rocksdb_options_t* options, const char* name, char** errptr);
extern ROCKSDB_LIBRARY_API rocksdb_t* rocksdb_open_with_ttl(
const rocksdb_options_t* options, const char* name, int ttl, char** errptr);
extern ROCKSDB_LIBRARY_API 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_LIBRARY_API rocksdb_t* rocksdb_open_as_secondary(
const rocksdb_options_t* options, const char* name,
const char* secondary_path, char** errptr);
extern ROCKSDB_LIBRARY_API rocksdb_backup_engine_t* rocksdb_backup_engine_open(
const rocksdb_options_t* options, const char* path, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_backup_engine_create_new_backup(
rocksdb_backup_engine_t* be, rocksdb_t* db, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_backup_engine_create_new_backup_flush(
rocksdb_backup_engine_t* be, rocksdb_t* db, unsigned char flush_before_backup,
char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_backup_engine_purge_old_backups(
rocksdb_backup_engine_t* be, uint32_t num_backups_to_keep, char** errptr);
extern ROCKSDB_LIBRARY_API rocksdb_restore_options_t*
rocksdb_restore_options_create();
extern ROCKSDB_LIBRARY_API void rocksdb_restore_options_destroy(
rocksdb_restore_options_t* opt);
extern ROCKSDB_LIBRARY_API void rocksdb_restore_options_set_keep_log_files(
rocksdb_restore_options_t* opt, int v);
extern ROCKSDB_LIBRARY_API void
rocksdb_backup_engine_verify_backup(rocksdb_backup_engine_t* be,
uint32_t backup_id, char** errptr);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_backup_engine_restore_db_from_backup(
rocksdb_backup_engine_t* be, const char* db_dir, const char* wal_dir,
const rocksdb_restore_options_t* restore_options, const uint32_t backup_id,
char** errptr);
extern ROCKSDB_LIBRARY_API const rocksdb_backup_engine_info_t*
rocksdb_backup_engine_get_backup_info(rocksdb_backup_engine_t* be);
extern ROCKSDB_LIBRARY_API int rocksdb_backup_engine_info_count(
const rocksdb_backup_engine_info_t* info);
extern ROCKSDB_LIBRARY_API int64_t
rocksdb_backup_engine_info_timestamp(const rocksdb_backup_engine_info_t* info,
int index);
extern ROCKSDB_LIBRARY_API uint32_t
rocksdb_backup_engine_info_backup_id(const rocksdb_backup_engine_info_t* info,
int index);
extern ROCKSDB_LIBRARY_API uint64_t
rocksdb_backup_engine_info_size(const rocksdb_backup_engine_info_t* info,
int index);
extern ROCKSDB_LIBRARY_API uint32_t rocksdb_backup_engine_info_number_files(
const rocksdb_backup_engine_info_t* info, int index);
extern ROCKSDB_LIBRARY_API void rocksdb_backup_engine_info_destroy(
const rocksdb_backup_engine_info_t* info);
extern ROCKSDB_LIBRARY_API void rocksdb_backup_engine_close(
rocksdb_backup_engine_t* be);
extern ROCKSDB_LIBRARY_API rocksdb_checkpoint_t*
rocksdb_checkpoint_object_create(rocksdb_t* db, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_checkpoint_create(
rocksdb_checkpoint_t* checkpoint, const char* checkpoint_dir,
uint64_t log_size_for_flush, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_checkpoint_object_destroy(
rocksdb_checkpoint_t* checkpoint);
extern ROCKSDB_LIBRARY_API rocksdb_t* rocksdb_open_column_families(
const rocksdb_options_t* options, const char* name, int num_column_families,
const char* const* column_family_names,
const rocksdb_options_t* const* column_family_options,
rocksdb_column_family_handle_t** column_family_handles, char** errptr);
extern ROCKSDB_LIBRARY_API rocksdb_t*
rocksdb_open_for_read_only_column_families(
const rocksdb_options_t* options, const char* name, int num_column_families,
const char* const* column_family_names,
const rocksdb_options_t* const* column_family_options,
rocksdb_column_family_handle_t** column_family_handles,
unsigned char error_if_log_file_exist, char** errptr);
extern ROCKSDB_LIBRARY_API rocksdb_t* rocksdb_open_as_secondary_column_families(
const rocksdb_options_t* options, const char* name,
const char* secondary_path, int num_column_families,
const char* const* column_family_names,
const rocksdb_options_t* const* column_family_options,
rocksdb_column_family_handle_t** colummn_family_handles, char** errptr);
extern ROCKSDB_LIBRARY_API char** rocksdb_list_column_families(
const rocksdb_options_t* options, const char* name, size_t* lencf,
char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_list_column_families_destroy(
char** list, size_t len);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_drop_column_family(
rocksdb_t* db, rocksdb_column_family_handle_t* handle, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_column_family_handle_destroy(
rocksdb_column_family_handle_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_close(rocksdb_t* db);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_delete(
rocksdb_t* db, const rocksdb_writeoptions_t* options, const char* key,
size_t keylen, char** errptr);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_delete_range_cf(
rocksdb_t* db, const rocksdb_writeoptions_t* options,
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,
char** errptr);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API char* rocksdb_get(
rocksdb_t* db, const rocksdb_readoptions_t* options, const char* key,
size_t keylen, size_t* vallen, char** errptr);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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);
// The value is only allocated (using malloc) and returned if it is found and
// value_found isn't NULL. In that case the user is responsible for freeing it.
extern ROCKSDB_LIBRARY_API unsigned char rocksdb_key_may_exist(
rocksdb_t* db, const rocksdb_readoptions_t* options, const char* key,
size_t key_len, char** value, size_t* val_len, const char* timestamp,
size_t timestamp_len, unsigned char* value_found);
// The value is only allocated (using malloc) and returned if it is found and
// value_found isn't NULL. In that case the user is responsible for freeing it.
extern ROCKSDB_LIBRARY_API unsigned char rocksdb_key_may_exist_cf(
rocksdb_t* db, const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* column_family, const char* key,
size_t key_len, char** value, size_t* val_len, const char* timestamp,
size_t timestamp_len, unsigned char* value_found);
extern ROCKSDB_LIBRARY_API rocksdb_iterator_t* rocksdb_create_iterator(
rocksdb_t* db, const rocksdb_readoptions_t* options);
extern ROCKSDB_LIBRARY_API rocksdb_wal_iterator_t* rocksdb_get_updates_since(
rocksdb_t* db, uint64_t seq_number,
const rocksdb_wal_readoptions_t* options,
char** errptr
);
extern ROCKSDB_LIBRARY_API rocksdb_iterator_t* rocksdb_create_iterator_cf(
rocksdb_t* db, const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* column_family);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API const rocksdb_snapshot_t* rocksdb_create_snapshot(
rocksdb_t* db);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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);
/* returns 0 on success, -1 otherwise */
int rocksdb_property_int_cf(
rocksdb_t* db, rocksdb_column_family_handle_t* column_family,
const char* propname, uint64_t *out_val);
extern ROCKSDB_LIBRARY_API char* rocksdb_property_value_cf(
rocksdb_t* db, rocksdb_column_family_handle_t* column_family,
const char* propname);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_delete_file(rocksdb_t* db,
const char* name);
extern ROCKSDB_LIBRARY_API const rocksdb_livefiles_t* rocksdb_livefiles(
rocksdb_t* db);
extern ROCKSDB_LIBRARY_API void rocksdb_flush(
rocksdb_t* db, const rocksdb_flushoptions_t* options, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_flush_cf(
rocksdb_t* db, const rocksdb_flushoptions_t* options,
rocksdb_column_family_handle_t* column_family, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_disable_file_deletions(rocksdb_t* db,
char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_enable_file_deletions(
rocksdb_t* db, unsigned char force, char** errptr);
/* Management operations */
extern ROCKSDB_LIBRARY_API void rocksdb_destroy_db(
const rocksdb_options_t* options, const char* name, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_repair_db(
const rocksdb_options_t* options, const char* name, char** errptr);
/* Iterator */
extern ROCKSDB_LIBRARY_API void rocksdb_iter_destroy(rocksdb_iterator_t*);
extern ROCKSDB_LIBRARY_API unsigned char rocksdb_iter_valid(
const rocksdb_iterator_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_iter_seek_to_first(rocksdb_iterator_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_iter_seek_to_last(rocksdb_iterator_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_iter_seek(rocksdb_iterator_t*,
const char* k, size_t klen);
extern ROCKSDB_LIBRARY_API void rocksdb_iter_seek_for_prev(rocksdb_iterator_t*,
const char* k,
size_t klen);
extern ROCKSDB_LIBRARY_API void rocksdb_iter_next(rocksdb_iterator_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_iter_prev(rocksdb_iterator_t*);
extern ROCKSDB_LIBRARY_API const char* rocksdb_iter_key(
const rocksdb_iterator_t*, size_t* klen);
extern ROCKSDB_LIBRARY_API const char* rocksdb_iter_value(
const rocksdb_iterator_t*, size_t* vlen);
extern ROCKSDB_LIBRARY_API void rocksdb_iter_get_error(
const rocksdb_iterator_t*, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_wal_iter_next(rocksdb_wal_iterator_t* iter);
extern ROCKSDB_LIBRARY_API unsigned char rocksdb_wal_iter_valid(
const rocksdb_wal_iterator_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_wal_iter_status (const rocksdb_wal_iterator_t* iter, char** errptr) ;
extern ROCKSDB_LIBRARY_API rocksdb_writebatch_t* rocksdb_wal_iter_get_batch (const rocksdb_wal_iterator_t* iter, uint64_t* seq) ;
extern ROCKSDB_LIBRARY_API uint64_t rocksdb_get_latest_sequence_number (rocksdb_t *db);
extern ROCKSDB_LIBRARY_API void rocksdb_wal_iter_destroy (const rocksdb_wal_iterator_t* iter) ;
/* Write batch */
extern ROCKSDB_LIBRARY_API rocksdb_writebatch_t* rocksdb_writebatch_create();
extern ROCKSDB_LIBRARY_API rocksdb_writebatch_t* rocksdb_writebatch_create_from(
const char* rep, size_t size);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_destroy(
rocksdb_writebatch_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_clear(rocksdb_writebatch_t*);
extern ROCKSDB_LIBRARY_API int rocksdb_writebatch_count(rocksdb_writebatch_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_put(rocksdb_writebatch_t*,
const char* key,
size_t klen,
const char* val,
size_t vlen);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_writebatch_merge(rocksdb_writebatch_t*,
const char* key,
size_t klen,
const char* val,
size_t vlen);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_writebatch_delete(rocksdb_writebatch_t*,
const char* key,
size_t klen);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_singledelete(
rocksdb_writebatch_t* b, const char* key, size_t klen);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_delete_cf(
rocksdb_writebatch_t*, rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_singledelete_cf(
rocksdb_writebatch_t* b, rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_deletev(
rocksdb_writebatch_t* b, int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_writebatch_put_log_data(
rocksdb_writebatch_t*, const char* blob, size_t len);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API const char* rocksdb_writebatch_data(
rocksdb_writebatch_t*, size_t* size);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_set_save_point(
rocksdb_writebatch_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_rollback_to_save_point(
rocksdb_writebatch_t*, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_pop_save_point(
rocksdb_writebatch_t*, char** errptr);
/* Write batch with index */
extern ROCKSDB_LIBRARY_API rocksdb_writebatch_wi_t* rocksdb_writebatch_wi_create(
size_t reserved_bytes,
unsigned char overwrite_keys);
extern ROCKSDB_LIBRARY_API rocksdb_writebatch_wi_t* rocksdb_writebatch_wi_create_from(
const char* rep, size_t size);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_wi_destroy(
rocksdb_writebatch_wi_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_wi_clear(rocksdb_writebatch_wi_t*);
extern ROCKSDB_LIBRARY_API int rocksdb_writebatch_wi_count(rocksdb_writebatch_wi_t* b);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_wi_put(rocksdb_writebatch_wi_t*,
const char* key,
size_t klen,
const char* val,
size_t vlen);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_writebatch_wi_merge(rocksdb_writebatch_wi_t*,
const char* key,
size_t klen,
const char* val,
size_t vlen);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_writebatch_wi_delete(rocksdb_writebatch_wi_t*,
const char* key,
size_t klen);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_wi_singledelete(
rocksdb_writebatch_wi_t*, const char* key, size_t klen);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_wi_delete_cf(
rocksdb_writebatch_wi_t*, rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_wi_singledelete_cf(
rocksdb_writebatch_wi_t*, rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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);
// DO NOT USE - rocksdb_writebatch_wi_delete_range is not yet supported
extern ROCKSDB_LIBRARY_API 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);
// DO NOT USE - rocksdb_writebatch_wi_delete_range_cf is not yet supported
extern ROCKSDB_LIBRARY_API 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);
// DO NOT USE - rocksdb_writebatch_wi_delete_rangev is not yet supported
extern ROCKSDB_LIBRARY_API 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);
// DO NOT USE - rocksdb_writebatch_wi_delete_rangev_cf is not yet supported
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_writebatch_wi_put_log_data(
rocksdb_writebatch_wi_t*, const char* blob, size_t len);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API const char* rocksdb_writebatch_wi_data(
rocksdb_writebatch_wi_t* b,
size_t* size);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_wi_set_save_point(
rocksdb_writebatch_wi_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_wi_rollback_to_save_point(
rocksdb_writebatch_wi_t*, char** errptr);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_write_writebatch_wi(
rocksdb_t* db,
const rocksdb_writeoptions_t* options,
rocksdb_writebatch_wi_t* wbwi,
char** errptr);
extern ROCKSDB_LIBRARY_API rocksdb_iterator_t* rocksdb_writebatch_wi_create_iterator_with_base(
rocksdb_writebatch_wi_t* wbwi,
rocksdb_iterator_t* base_iterator);
extern ROCKSDB_LIBRARY_API 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_LIBRARY_API rocksdb_block_based_table_options_t*
rocksdb_block_based_options_create();
extern ROCKSDB_LIBRARY_API void rocksdb_block_based_options_destroy(
rocksdb_block_based_table_options_t* options);
extern ROCKSDB_LIBRARY_API void rocksdb_block_based_options_set_block_size(
rocksdb_block_based_table_options_t* options, size_t block_size);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_block_size_deviation(
rocksdb_block_based_table_options_t* options, int block_size_deviation);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_block_restart_interval(
rocksdb_block_based_table_options_t* options, int block_restart_interval);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_index_block_restart_interval(
rocksdb_block_based_table_options_t* options, int index_block_restart_interval);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_metadata_block_size(
rocksdb_block_based_table_options_t* options, uint64_t metadata_block_size);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_partition_filters(
rocksdb_block_based_table_options_t* options, unsigned char partition_filters);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_use_delta_encoding(
rocksdb_block_based_table_options_t* options, unsigned char use_delta_encoding);
extern ROCKSDB_LIBRARY_API void rocksdb_block_based_options_set_filter_policy(
rocksdb_block_based_table_options_t* options,
rocksdb_filterpolicy_t* filter_policy);
extern ROCKSDB_LIBRARY_API void rocksdb_block_based_options_set_no_block_cache(
rocksdb_block_based_table_options_t* options, unsigned char no_block_cache);
extern ROCKSDB_LIBRARY_API void rocksdb_block_based_options_set_block_cache(
rocksdb_block_based_table_options_t* options, rocksdb_cache_t* block_cache);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_block_cache_compressed(
rocksdb_block_based_table_options_t* options,
rocksdb_cache_t* block_cache_compressed);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_whole_key_filtering(
rocksdb_block_based_table_options_t*, unsigned char);
extern ROCKSDB_LIBRARY_API 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 ROCKSDB_LIBRARY_API void rocksdb_block_based_options_set_index_type(
rocksdb_block_based_table_options_t*, int); // uses one of the above enums
enum {
rocksdb_block_based_table_data_block_index_type_binary_search = 0,
rocksdb_block_based_table_data_block_index_type_binary_search_and_hash = 1,
};
extern ROCKSDB_LIBRARY_API void rocksdb_block_based_options_set_data_block_index_type(
rocksdb_block_based_table_options_t*, int); // uses one of the above enums
extern ROCKSDB_LIBRARY_API void rocksdb_block_based_options_set_data_block_hash_ratio(
rocksdb_block_based_table_options_t* options, double v);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_hash_index_allow_collision(
rocksdb_block_based_table_options_t*, unsigned char);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_cache_index_and_filter_blocks(
rocksdb_block_based_table_options_t*, unsigned char);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_cache_index_and_filter_blocks_with_high_priority(
rocksdb_block_based_table_options_t*, unsigned char);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_pin_l0_filter_and_index_blocks_in_cache(
rocksdb_block_based_table_options_t*, unsigned char);
extern ROCKSDB_LIBRARY_API void
rocksdb_block_based_options_set_pin_top_level_index_and_filter(
rocksdb_block_based_table_options_t*, unsigned char);
extern ROCKSDB_LIBRARY_API 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_LIBRARY_API rocksdb_cuckoo_table_options_t*
rocksdb_cuckoo_options_create();
extern ROCKSDB_LIBRARY_API void rocksdb_cuckoo_options_destroy(
rocksdb_cuckoo_table_options_t* options);
extern ROCKSDB_LIBRARY_API void rocksdb_cuckoo_options_set_hash_ratio(
rocksdb_cuckoo_table_options_t* options, double v);
extern ROCKSDB_LIBRARY_API void rocksdb_cuckoo_options_set_max_search_depth(
rocksdb_cuckoo_table_options_t* options, uint32_t v);
extern ROCKSDB_LIBRARY_API void rocksdb_cuckoo_options_set_cuckoo_block_size(
rocksdb_cuckoo_table_options_t* options, uint32_t v);
extern ROCKSDB_LIBRARY_API void
rocksdb_cuckoo_options_set_identity_as_first_hash(
rocksdb_cuckoo_table_options_t* options, unsigned char v);
extern ROCKSDB_LIBRARY_API void rocksdb_cuckoo_options_set_use_module_hash(
rocksdb_cuckoo_table_options_t* options, unsigned char v);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_cuckoo_table_factory(
rocksdb_options_t* opt, rocksdb_cuckoo_table_options_t* table_options);
/* Options */
extern ROCKSDB_LIBRARY_API void rocksdb_set_options(
rocksdb_t* db, int count, const char* const keys[], const char* const values[], char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_set_options_cf(
rocksdb_t* db, rocksdb_column_family_handle_t* handle, int count, const char* const keys[], const char* const values[], char** errptr);
extern ROCKSDB_LIBRARY_API rocksdb_options_t* rocksdb_options_create();
extern ROCKSDB_LIBRARY_API void rocksdb_options_destroy(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API rocksdb_options_t* rocksdb_options_create_copy(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_increase_parallelism(
rocksdb_options_t* opt, int total_threads);
extern ROCKSDB_LIBRARY_API void rocksdb_options_optimize_for_point_lookup(
rocksdb_options_t* opt, uint64_t block_cache_size_mb);
extern ROCKSDB_LIBRARY_API void rocksdb_options_optimize_level_style_compaction(
rocksdb_options_t* opt, uint64_t memtable_memory_budget);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_optimize_universal_style_compaction(
rocksdb_options_t* opt, uint64_t memtable_memory_budget);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_allow_ingest_behind(rocksdb_options_t*,
unsigned char);
extern ROCKSDB_LIBRARY_API unsigned char
rocksdb_options_get_allow_ingest_behind(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_compaction_filter(
rocksdb_options_t*, rocksdb_compactionfilter_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_compaction_filter_factory(
rocksdb_options_t*, rocksdb_compactionfilterfactory_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_compaction_readahead_size(
rocksdb_options_t*, size_t);
extern ROCKSDB_LIBRARY_API size_t
rocksdb_options_get_compaction_readahead_size(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_comparator(
rocksdb_options_t*, rocksdb_comparator_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_merge_operator(
rocksdb_options_t*, rocksdb_mergeoperator_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_uint64add_merge_operator(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_compression_per_level(
rocksdb_options_t* opt, int* level_values, size_t num_levels);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_create_if_missing(
rocksdb_options_t*, unsigned char);
extern ROCKSDB_LIBRARY_API unsigned char rocksdb_options_get_create_if_missing(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_create_missing_column_families(rocksdb_options_t*,
unsigned char);
extern ROCKSDB_LIBRARY_API unsigned char
rocksdb_options_get_create_missing_column_families(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_error_if_exists(
rocksdb_options_t*, unsigned char);
extern ROCKSDB_LIBRARY_API unsigned char rocksdb_options_get_error_if_exists(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_paranoid_checks(
rocksdb_options_t*, unsigned char);
extern ROCKSDB_LIBRARY_API unsigned char rocksdb_options_get_paranoid_checks(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_db_paths(rocksdb_options_t*,
const rocksdb_dbpath_t** path_values,
size_t num_paths);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_env(rocksdb_options_t*,
rocksdb_env_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_info_log(rocksdb_options_t*,
rocksdb_logger_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_info_log_level(
rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int rocksdb_options_get_info_log_level(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_write_buffer_size(
rocksdb_options_t*, size_t);
extern ROCKSDB_LIBRARY_API size_t
rocksdb_options_get_write_buffer_size(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_db_write_buffer_size(
rocksdb_options_t*, size_t);
extern ROCKSDB_LIBRARY_API size_t
rocksdb_options_get_db_write_buffer_size(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_max_open_files(
rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int rocksdb_options_get_max_open_files(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_max_file_opening_threads(
rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int rocksdb_options_get_max_file_opening_threads(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_max_total_wal_size(
rocksdb_options_t* opt, uint64_t n);
extern ROCKSDB_LIBRARY_API uint64_t
rocksdb_options_get_max_total_wal_size(rocksdb_options_t* opt);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_compression_options(
rocksdb_options_t*, int, int, int, int);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_compression_options_zstd_max_train_bytes(rocksdb_options_t*,
int);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_bottommost_compression_options(rocksdb_options_t*, int, int,
int, int, unsigned char);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_bottommost_compression_options_zstd_max_train_bytes(
rocksdb_options_t*, int, unsigned char);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_prefix_extractor(
rocksdb_options_t*, rocksdb_slicetransform_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_num_levels(
rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int rocksdb_options_get_num_levels(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_level0_file_num_compaction_trigger(rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int
rocksdb_options_get_level0_file_num_compaction_trigger(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_level0_slowdown_writes_trigger(rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int
rocksdb_options_get_level0_slowdown_writes_trigger(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_level0_stop_writes_trigger(
rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int rocksdb_options_get_level0_stop_writes_trigger(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_max_mem_compaction_level(
rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_target_file_size_base(
rocksdb_options_t*, uint64_t);
extern ROCKSDB_LIBRARY_API uint64_t
rocksdb_options_get_target_file_size_base(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_target_file_size_multiplier(
rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int rocksdb_options_get_target_file_size_multiplier(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_max_bytes_for_level_base(
rocksdb_options_t*, uint64_t);
extern ROCKSDB_LIBRARY_API uint64_t
rocksdb_options_get_max_bytes_for_level_base(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_level_compaction_dynamic_level_bytes(rocksdb_options_t*,
unsigned char);
extern ROCKSDB_LIBRARY_API unsigned char
rocksdb_options_get_level_compaction_dynamic_level_bytes(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_max_bytes_for_level_multiplier(rocksdb_options_t*, double);
extern ROCKSDB_LIBRARY_API double
rocksdb_options_get_max_bytes_for_level_multiplier(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_max_bytes_for_level_multiplier_additional(
rocksdb_options_t*, int* level_values, size_t num_levels);
extern ROCKSDB_LIBRARY_API void rocksdb_options_enable_statistics(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_skip_stats_update_on_db_open(rocksdb_options_t* opt,
unsigned char val);
extern ROCKSDB_LIBRARY_API unsigned char
rocksdb_options_get_skip_stats_update_on_db_open(rocksdb_options_t* opt);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_skip_checking_sst_file_sizes_on_db_open(
rocksdb_options_t* opt, unsigned char val);
extern ROCKSDB_LIBRARY_API unsigned char
rocksdb_options_get_skip_checking_sst_file_sizes_on_db_open(
rocksdb_options_t* opt);
/* returns a pointer to a malloc()-ed, null terminated string */
extern ROCKSDB_LIBRARY_API char* rocksdb_options_statistics_get_string(
rocksdb_options_t* opt);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_max_write_buffer_number(
rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int rocksdb_options_get_max_write_buffer_number(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_min_write_buffer_number_to_merge(rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int
rocksdb_options_get_min_write_buffer_number_to_merge(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_max_write_buffer_number_to_maintain(rocksdb_options_t*,
int);
extern ROCKSDB_LIBRARY_API int
rocksdb_options_get_max_write_buffer_number_to_maintain(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void
rocksdb_options_set_max_write_buffer_size_to_maintain(rocksdb_options_t*,
int64_t);
extern ROCKSDB_LIBRARY_API int64_t
rocksdb_options_get_max_write_buffer_size_to_maintain(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_enable_pipelined_write(
rocksdb_options_t*, unsigned char);
extern ROCKSDB_LIBRARY_API unsigned char
rocksdb_options_get_enable_pipelined_write(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_unordered_write(
rocksdb_options_t*, unsigned char);
extern ROCKSDB_LIBRARY_API unsigned char rocksdb_options_get_unordered_write(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_max_subcompactions(
rocksdb_options_t*, uint32_t);
extern ROCKSDB_LIBRARY_API uint32_t
rocksdb_options_get_max_subcompactions(rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_max_background_jobs(
rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int rocksdb_options_get_max_background_jobs(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_max_background_compactions(
rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int rocksdb_options_get_max_background_compactions(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_base_background_compactions(
rocksdb_options_t*, int);
extern ROCKSDB_LIBRARY_API int rocksdb_options_get_base_background_compactions(
rocksdb_options_t*);
extern ROCKSDB_LIBRARY_API void rocksdb_options_set_max_background_flushes(
rocksdb_options_t*, int);