rocksdb/util/options_helper.h

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// Copyright (c) 2014, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
#pragma once
#include <string>
#include <stdexcept>
#include "util/mutable_cf_options.h"
#include "rocksdb/status.h"
namespace rocksdb {
Status GetMutableOptionsFromStrings(
const MutableCFOptions& base_options,
const std::unordered_map<std::string, std::string>& options_map,
MutableCFOptions* new_options);
enum class OptionType {
kBoolean,
kInt,
kUInt,
kUInt32T,
kUInt64T,
kSizeT,
kString,
kUnknown
};
// A struct for storing constant option information such as option name,
// option type, and offset.
struct OptionTypeInfo {
int offset;
OptionType type;
};
static std::unordered_map<std::string, OptionTypeInfo> db_options_type_info = {
/*
// not yet supported
AccessHint access_hint_on_compaction_start;
Env* env;
InfoLogLevel info_log_level;
WALRecoveryMode wal_recovery_mode;
std::shared_ptr<Cache> row_cache;
std::shared_ptr<DeleteScheduler> delete_scheduler;
std::shared_ptr<Logger> info_log;
std::shared_ptr<RateLimiter> rate_limiter;
std::shared_ptr<Statistics> statistics;
std::vector<DbPath> db_paths;
std::vector<std::shared_ptr<EventListener>> listeners;
*/
{"advise_random_on_open",
{offsetof(struct DBOptions, advise_random_on_open), OptionType::kBoolean}},
{"allow_mmap_reads",
{offsetof(struct DBOptions, allow_mmap_reads), OptionType::kBoolean}},
{"allow_mmap_writes",
{offsetof(struct DBOptions, allow_mmap_writes), OptionType::kBoolean}},
{"allow_os_buffer",
{offsetof(struct DBOptions, allow_os_buffer), OptionType::kBoolean}},
{"create_if_missing",
{offsetof(struct DBOptions, create_if_missing), OptionType::kBoolean}},
{"create_missing_column_families",
{offsetof(struct DBOptions, create_missing_column_families),
OptionType::kBoolean}},
{"disableDataSync",
{offsetof(struct DBOptions, disableDataSync), OptionType::kBoolean}},
{"disable_data_sync", // for compatibility
{offsetof(struct DBOptions, disableDataSync), OptionType::kBoolean}},
{"enable_thread_tracking",
{offsetof(struct DBOptions, enable_thread_tracking),
OptionType::kBoolean}},
{"error_if_exists",
{offsetof(struct DBOptions, error_if_exists), OptionType::kBoolean}},
{"is_fd_close_on_exec",
{offsetof(struct DBOptions, is_fd_close_on_exec), OptionType::kBoolean}},
{"paranoid_checks",
{offsetof(struct DBOptions, paranoid_checks), OptionType::kBoolean}},
{"skip_log_error_on_recovery",
{offsetof(struct DBOptions, skip_log_error_on_recovery),
OptionType::kBoolean}},
{"skip_stats_update_on_db_open",
{offsetof(struct DBOptions, skip_stats_update_on_db_open),
OptionType::kBoolean}},
{"new_table_reader_for_compaction_inputs",
{offsetof(struct DBOptions, new_table_reader_for_compaction_inputs),
OptionType::kBoolean}},
{"use_adaptive_mutex",
{offsetof(struct DBOptions, use_adaptive_mutex), OptionType::kBoolean}},
{"use_fsync",
{offsetof(struct DBOptions, use_fsync), OptionType::kBoolean}},
{"max_background_compactions",
{offsetof(struct DBOptions, max_background_compactions),
OptionType::kInt}},
{"max_background_flushes",
{offsetof(struct DBOptions, max_background_flushes), OptionType::kInt}},
{"max_file_opening_threads",
{offsetof(struct DBOptions, max_file_opening_threads), OptionType::kInt}},
{"max_open_files",
{offsetof(struct DBOptions, max_open_files), OptionType::kInt}},
{"table_cache_numshardbits",
{offsetof(struct DBOptions, table_cache_numshardbits), OptionType::kInt}},
{"db_write_buffer_size",
{offsetof(struct DBOptions, db_write_buffer_size), OptionType::kSizeT}},
{"keep_log_file_num",
{offsetof(struct DBOptions, keep_log_file_num), OptionType::kSizeT}},
{"log_file_time_to_roll",
{offsetof(struct DBOptions, log_file_time_to_roll), OptionType::kSizeT}},
{"manifest_preallocation_size",
{offsetof(struct DBOptions, manifest_preallocation_size),
OptionType::kSizeT}},
{"max_log_file_size",
{offsetof(struct DBOptions, max_log_file_size), OptionType::kSizeT}},
{"db_log_dir",
{offsetof(struct DBOptions, db_log_dir), OptionType::kString}},
{"wal_dir", {offsetof(struct DBOptions, wal_dir), OptionType::kString}},
{"max_subcompactions",
{offsetof(struct DBOptions, max_subcompactions), OptionType::kUInt32T}},
{"WAL_size_limit_MB",
{offsetof(struct DBOptions, WAL_size_limit_MB), OptionType::kUInt64T}},
{"WAL_ttl_seconds",
{offsetof(struct DBOptions, WAL_ttl_seconds), OptionType::kUInt64T}},
{"bytes_per_sync",
{offsetof(struct DBOptions, bytes_per_sync), OptionType::kUInt64T}},
{"delayed_write_rate",
{offsetof(struct DBOptions, delayed_write_rate), OptionType::kUInt64T}},
{"delete_obsolete_files_period_micros",
{offsetof(struct DBOptions, delete_obsolete_files_period_micros),
OptionType::kUInt64T}},
{"max_manifest_file_size",
{offsetof(struct DBOptions, max_manifest_file_size),
OptionType::kUInt64T}},
{"max_total_wal_size",
{offsetof(struct DBOptions, max_total_wal_size), OptionType::kUInt64T}},
{"wal_bytes_per_sync",
{offsetof(struct DBOptions, wal_bytes_per_sync), OptionType::kUInt64T}},
{"stats_dump_period_sec",
{offsetof(struct DBOptions, stats_dump_period_sec), OptionType::kUInt}}};
} // namespace rocksdb