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c.h
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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 <stdbool.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_backup_engine_options_t rocksdb_backup_engine_options_t;
typedef struct rocksdb_restore_options_t rocksdb_restore_options_t;
typedef struct rocksdb_memory_allocator_t rocksdb_memory_allocator_t;
typedef struct rocksdb_lru_cache_options_t rocksdb_lru_cache_options_t;
typedef struct rocksdb_hyper_clock_cache_options_t
rocksdb_hyper_clock_cache_options_t;
typedef struct rocksdb_cache_t rocksdb_cache_t;
typedef struct rocksdb_write_buffer_manager_t rocksdb_write_buffer_manager_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_column_family_metadata_t
rocksdb_column_family_metadata_t;
typedef struct rocksdb_level_metadata_t rocksdb_level_metadata_t;
typedef struct rocksdb_sst_file_metadata_t rocksdb_sst_file_metadata_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;
typedef struct rocksdb_statistics_histogram_data_t
rocksdb_statistics_histogram_data_t;
typedef struct rocksdb_wait_for_compact_options_t
rocksdb_wait_for_compact_options_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_wal_file_exists, 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 rocksdb_backup_engine_t*
rocksdb_backup_engine_open_opts(const rocksdb_backup_engine_options_t* options,
rocksdb_env_t* env, 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(void);
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 void rocksdb_put_with_ts(
rocksdb_t* db, const rocksdb_writeoptions_t* options, const char* key,
size_t keylen, const char* ts, size_t tslen, const char* val, size_t vallen,
char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_put_cf_with_ts(
rocksdb_t* db, const rocksdb_writeoptions_t* options,
rocksdb_column_family_handle_t* column_family, const char* key,
size_t keylen, const char* ts, size_t tslen, const char* val, size_t vallen,
char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_delete_with_ts(
rocksdb_t* db, const rocksdb_writeoptions_t* options, const char* key,
size_t keylen, const char* ts, size_t tslen, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_delete_cf_with_ts(
rocksdb_t* db, const rocksdb_writeoptions_t* options,
rocksdb_column_family_handle_t* column_family, const char* key,
size_t keylen, const char* ts, size_t tslen, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_singledelete(
rocksdb_t* db, const rocksdb_writeoptions_t* options, const char* key,
size_t keylen, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_singledelete_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_singledelete_with_ts(
rocksdb_t* db, const rocksdb_writeoptions_t* options, const char* key,
size_t keylen, const char* ts, size_t tslen, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_singledelete_cf_with_ts(
rocksdb_t* db, const rocksdb_writeoptions_t* options,
rocksdb_column_family_handle_t* column_family, const char* key,
size_t keylen, const char* ts, size_t tslen, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_increase_full_history_ts_low(
rocksdb_t* db, rocksdb_column_family_handle_t* column_family,
const char* ts_low, size_t ts_lowlen, char** errptr);
extern ROCKSDB_LIBRARY_API char* rocksdb_get_full_history_ts_low(
rocksdb_t* db, rocksdb_column_family_handle_t* column_family,
size_t* ts_lowlen, char** errptr);
/* BackupEngineOptions */
extern ROCKSDB_LIBRARY_API rocksdb_backup_engine_options_t*
rocksdb_backup_engine_options_create(const char* backup_dir);
extern ROCKSDB_LIBRARY_API void rocksdb_backup_engine_options_set_backup_dir(
rocksdb_backup_engine_options_t* options, const char* backup_dir);
extern ROCKSDB_LIBRARY_API void rocksdb_backup_engine_options_set_env(
rocksdb_backup_engine_options_t* options, rocksdb_env_t* env);
extern ROCKSDB_LIBRARY_API void
rocksdb_backup_engine_options_set_share_table_files(
rocksdb_backup_engine_options_t* options, unsigned char val);
extern ROCKSDB_LIBRARY_API unsigned char
rocksdb_backup_engine_options_get_share_table_files(
rocksdb_backup_engine_options_t* options);
extern ROCKSDB_LIBRARY_API void rocksdb_backup_engine_options_set_sync(
rocksdb_backup_engine_options_t* options, unsigned char val);
extern ROCKSDB_LIBRARY_API unsigned char rocksdb_backup_engine_options_get_sync(
rocksdb_backup_engine_options_t* options);
extern ROCKSDB_LIBRARY_API void
rocksdb_backup_engine_options_set_destroy_old_data(
rocksdb_backup_engine_options_t* options, unsigned char val);
extern ROCKSDB_LIBRARY_API unsigned char
rocksdb_backup_engine_options_get_destroy_old_data(
rocksdb_backup_engine_options_t* options);
extern ROCKSDB_LIBRARY_API void
rocksdb_backup_engine_options_set_backup_log_files(
rocksdb_backup_engine_options_t* options, unsigned char val);
extern ROCKSDB_LIBRARY_API unsigned char
rocksdb_backup_engine_options_get_backup_log_files(
rocksdb_backup_engine_options_t* options);
extern ROCKSDB_LIBRARY_API void
rocksdb_backup_engine_options_set_backup_rate_limit(
rocksdb_backup_engine_options_t* options, uint64_t limit);
extern ROCKSDB_LIBRARY_API uint64_t
rocksdb_backup_engine_options_get_backup_rate_limit(
rocksdb_backup_engine_options_t* options);
extern ROCKSDB_LIBRARY_API void
rocksdb_backup_engine_options_set_restore_rate_limit(
rocksdb_backup_engine_options_t* options, uint64_t limit);
extern ROCKSDB_LIBRARY_API uint64_t
rocksdb_backup_engine_options_get_restore_rate_limit(
rocksdb_backup_engine_options_t* options);
extern ROCKSDB_LIBRARY_API void
rocksdb_backup_engine_options_set_max_background_operations(
rocksdb_backup_engine_options_t* options, int val);
extern ROCKSDB_LIBRARY_API int
rocksdb_backup_engine_options_get_max_background_operations(
rocksdb_backup_engine_options_t* options);
extern ROCKSDB_LIBRARY_API void
rocksdb_backup_engine_options_set_callback_trigger_interval_size(
rocksdb_backup_engine_options_t* options, uint64_t size);
extern ROCKSDB_LIBRARY_API uint64_t
rocksdb_backup_engine_options_get_callback_trigger_interval_size(
rocksdb_backup_engine_options_t* options);
extern ROCKSDB_LIBRARY_API void
rocksdb_backup_engine_options_set_max_valid_backups_to_open(
rocksdb_backup_engine_options_t* options, int val);
extern ROCKSDB_LIBRARY_API int
rocksdb_backup_engine_options_get_max_valid_backups_to_open(
rocksdb_backup_engine_options_t* options);
extern ROCKSDB_LIBRARY_API void
rocksdb_backup_engine_options_set_share_files_with_checksum_naming(
rocksdb_backup_engine_options_t* options, int val);
extern ROCKSDB_LIBRARY_API int
rocksdb_backup_engine_options_get_share_files_with_checksum_naming(
rocksdb_backup_engine_options_t* options);
extern ROCKSDB_LIBRARY_API void rocksdb_backup_engine_options_destroy(
rocksdb_backup_engine_options_t*);
/* Checkpoint */
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_and_trim_history(
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* trim_ts,
size_t trim_tslen, char** errptr);
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_column_families_with_ttl(
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, const int* ttls,
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_wal_file_exists, 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** column_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 rocksdb_column_family_handle_t**
rocksdb_create_column_families(rocksdb_t* db,
const rocksdb_options_t* column_family_options,
int num_column_families,
const char* const* column_family_names,
size_t* lencfs, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_create_column_families_destroy(
rocksdb_column_family_handle_t** list);
extern ROCKSDB_LIBRARY_API rocksdb_column_family_handle_t*
rocksdb_create_column_family_with_ttl(
rocksdb_t* db, const rocksdb_options_t* column_family_options,
const char* column_family_name, int ttl, 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 rocksdb_column_family_handle_t*
rocksdb_get_default_column_family_handle(rocksdb_t* db);
extern ROCKSDB_LIBRARY_API void rocksdb_column_family_handle_destroy(
rocksdb_column_family_handle_t*);
extern ROCKSDB_LIBRARY_API uint32_t
rocksdb_column_family_handle_get_id(rocksdb_column_family_handle_t* handle);
extern ROCKSDB_LIBRARY_API char* rocksdb_column_family_handle_get_name(
rocksdb_column_family_handle_t* handle, size_t* name_len);
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_with_ts(
rocksdb_t* db, const rocksdb_readoptions_t* options, const char* key,
size_t keylen, size_t* vallen, char** ts, size_t* tslen, 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);
extern ROCKSDB_LIBRARY_API char* rocksdb_get_cf_with_ts(
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** ts, size_t* tslen, char** errptr);
/**
* Returns a malloc() buffer with the DB identity, assigning the length to
* *id_len. Returns NULL if an error occurred.
*/
extern ROCKSDB_LIBRARY_API char* rocksdb_get_db_identity(rocksdb_t* db,
size_t* id_len);
// 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_with_ts(
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** timestamp_list,
size_t* timestamp_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);
extern ROCKSDB_LIBRARY_API void rocksdb_multi_get_cf_with_ts(
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** timestamps_list,
size_t* timestamps_list_sizes, char** errs);
// The MultiGet API that improves performance by batching operations
// in the read path for greater efficiency. Currently, only the block based
// table format with full filters are supported. Other table formats such
// as plain table, block based table with block based filters and
// partitioned indexes will still work, but will not get any performance
// benefits.
//
// Note that all the keys passed to this API are restricted to a single
// column family.
//
// Parameters -
// db - the RocksDB instance.
// options - ReadOptions
// column_family - ColumnFamilyHandle* that the keys belong to. All the keys
// passed to the API are restricted to a single column family
// num_keys - Number of keys to lookup
// keys_list - Pointer to C style array of keys with num_keys elements
// keys_list_sizes - Pointer to C style array of the size of corresponding key
// in key_list with num_keys elements.
// values - Pointer to C style array of PinnableSlices with num_keys elements
// statuses - Pointer to C style array of Status with num_keys elements
// sorted_input - If true, it means the input keys are already sorted by key
// order, so the MultiGet() API doesn't have to sort them
// again. If false, the keys will be copied and sorted
// internally by the API - the input array will not be
// modified
extern ROCKSDB_LIBRARY_API void rocksdb_batched_multi_get_cf(
rocksdb_t* db, const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* column_family, size_t num_keys,
const char* const* keys_list, const size_t* keys_list_sizes,
rocksdb_pinnableslice_t** values, char** errs, const bool sorted_input);
// 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);
extern ROCKSDB_LIBRARY_API uint64_t
rocksdb_snapshot_get_sequence_number(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 */
extern ROCKSDB_LIBRARY_API int rocksdb_property_int(rocksdb_t* db,
const char* propname,
uint64_t* out_val);
/* returns 0 on success, -1 otherwise */
extern ROCKSDB_LIBRARY_API 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, char** errptr);
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, char** errptr);
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_suggest_compact_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 ROCKSDB_LIBRARY_API void rocksdb_suggest_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, char** errptr);
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_flush_cfs(
rocksdb_t* db, const rocksdb_flushoptions_t* options,
rocksdb_column_family_handle_t** column_family, int num_column_families,
char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_flush_wal(rocksdb_t* db,
unsigned char sync,
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,
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 const char* rocksdb_iter_timestamp(
const rocksdb_iterator_t*, size_t* tslen);
extern ROCKSDB_LIBRARY_API void rocksdb_iter_get_error(
const rocksdb_iterator_t*, char** errptr);
extern ROCKSDB_LIBRARY_API void rocksdb_iter_refresh(
const rocksdb_iterator_t* iter, 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(
void);
extern ROCKSDB_LIBRARY_API rocksdb_writebatch_t* rocksdb_writebatch_create_from(
const char* rep, size_t size);
extern ROCKSDB_LIBRARY_API rocksdb_writebatch_t*
rocksdb_writebatch_create_with_params(size_t reserved_bytes, size_t max_bytes,
size_t protection_bytes_per_key,
size_t default_cf_ts_sz);
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_put_cf_with_ts(
rocksdb_writebatch_t*, rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen, const char* ts, size_t tslen, 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_delete_cf_with_ts(
rocksdb_writebatch_t*, rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen, const char* ts, size_t tslen);
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_singledelete_cf_with_ts(
rocksdb_writebatch_t* b, rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen, const char* ts, size_t tslen);
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);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_update_timestamps(
rocksdb_writebatch_t* wb, const char* ts, size_t tslen, void* state,
size_t (*get_ts_size)(void*, uint32_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 rocksdb_writebatch_wi_t*
rocksdb_writebatch_wi_create_with_params(
rocksdb_comparator_t* backup_index_comparator, size_t reserved_bytes,
unsigned char overwrite_key, size_t max_bytes,
size_t protection_bytes_per_key);
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);
extern ROCKSDB_LIBRARY_API void rocksdb_writebatch_wi_update_timestamps(
rocksdb_writebatch_wi_t* wbwi, const char* ts, size_t tslen, void* state,
size_t (*get_ts_size)(void*, uint32_t), char** errptr);
/* Options utils */
// Load the latest rocksdb options from the specified db_path.
//
// On success, num_column_families will be updated with a non-zero
// number indicating the number of column families.
// The returned db_options, column_family_names, and column_family_options
// should be released via rocksdb_load_latest_options_destroy().
//
// On error, a non-null errptr that includes the error message will be