rocksdb/options/options_helper.h
mrambacher 01e460d538 Make types of Immutable/Mutable Options fields match that of the underlying Option (#8176)
Summary:
This PR is a first step at attempting to clean up some of the Mutable/Immutable Options code.  With this change, a DBOption and a ColumnFamilyOption can be reconstructed from their Mutable and Immutable equivalents, respectively.

readrandom tests do not show any performance degradation versus master (though both are slightly slower than the current 6.19 release).

There are still fields in the ImmutableCFOptions that are not CF options but DB options.  Eventually, I would like to move those into an ImmutableOptions (= ImmutableDBOptions+ImmutableCFOptions).  But that will be part of a future PR to minimize changes and disruptions.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8176

Reviewed By: pdillinger

Differential Revision: D27954339

Pulled By: mrambacher

fbshipit-source-id: ec6b805ba9afe6e094bffdbd76246c2d99aa9fad
2021-04-22 20:43:54 -07:00

122 lines
4.7 KiB
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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).
#pragma once
#include <map>
#include <stdexcept>
#include <string>
#include <vector>
#include "rocksdb/options.h"
#include "rocksdb/status.h"
#include "rocksdb/table.h"
namespace ROCKSDB_NAMESPACE {
struct ColumnFamilyOptions;
struct ConfigOptions;
struct DBOptions;
struct ImmutableCFOptions;
struct ImmutableDBOptions;
struct MutableDBOptions;
struct MutableCFOptions;
struct Options;
std::vector<CompressionType> GetSupportedCompressions();
std::vector<CompressionType> GetSupportedDictCompressions();
// Checks that the combination of DBOptions and ColumnFamilyOptions are valid
Status ValidateOptions(const DBOptions& db_opts,
const ColumnFamilyOptions& cf_opts);
DBOptions BuildDBOptions(const ImmutableDBOptions& immutable_db_options,
const MutableDBOptions& mutable_db_options);
ColumnFamilyOptions BuildColumnFamilyOptions(
const ColumnFamilyOptions& ioptions,
const MutableCFOptions& mutable_cf_options);
ColumnFamilyOptions BuildColumnFamilyOptions(const ImmutableCFOptions& ioptions,
const MutableCFOptions& moptions);
#ifndef ROCKSDB_LITE
std::unique_ptr<Configurable> DBOptionsAsConfigurable(
const MutableDBOptions& opts);
std::unique_ptr<Configurable> DBOptionsAsConfigurable(const DBOptions& opts);
std::unique_ptr<Configurable> CFOptionsAsConfigurable(
const MutableCFOptions& opts);
std::unique_ptr<Configurable> CFOptionsAsConfigurable(
const ColumnFamilyOptions& opts,
const std::unordered_map<std::string, std::string>* opt_map = nullptr);
Status GetStringFromMutableCFOptions(const ConfigOptions& config_options,
const MutableCFOptions& mutable_opts,
std::string* opt_string);
Status GetStringFromMutableDBOptions(const ConfigOptions& config_options,
const MutableDBOptions& mutable_opts,
std::string* opt_string);
Status GetMutableOptionsFromStrings(
const MutableCFOptions& base_options,
const std::unordered_map<std::string, std::string>& options_map,
Logger* info_log, MutableCFOptions* new_options);
Status GetMutableDBOptionsFromStrings(
const MutableDBOptions& base_options,
const std::unordered_map<std::string, std::string>& options_map,
MutableDBOptions* new_options);
bool ParseSliceTransform(
const std::string& value,
std::shared_ptr<const SliceTransform>* slice_transform);
extern Status StringToMap(
const std::string& opts_str,
std::unordered_map<std::string, std::string>* opts_map);
#endif // !ROCKSDB_LITE
struct OptionsHelper {
static const std::string kCFOptionsName /*= "ColumnFamilyOptions"*/;
static const std::string kDBOptionsName /*= "DBOptions" */;
static std::map<CompactionStyle, std::string> compaction_style_to_string;
static std::map<CompactionPri, std::string> compaction_pri_to_string;
static std::map<CompactionStopStyle, std::string>
compaction_stop_style_to_string;
static std::unordered_map<std::string, ChecksumType> checksum_type_string_map;
static std::unordered_map<std::string, CompressionType>
compression_type_string_map;
#ifndef ROCKSDB_LITE
static std::unordered_map<std::string, CompactionStopStyle>
compaction_stop_style_string_map;
static std::unordered_map<std::string, EncodingType> encoding_type_string_map;
static std::unordered_map<std::string, CompactionStyle>
compaction_style_string_map;
static std::unordered_map<std::string, CompactionPri>
compaction_pri_string_map;
#endif // !ROCKSDB_LITE
};
// Some aliasing
static auto& compaction_style_to_string =
OptionsHelper::compaction_style_to_string;
static auto& compaction_pri_to_string = OptionsHelper::compaction_pri_to_string;
static auto& compaction_stop_style_to_string =
OptionsHelper::compaction_stop_style_to_string;
static auto& checksum_type_string_map = OptionsHelper::checksum_type_string_map;
#ifndef ROCKSDB_LITE
static auto& compaction_stop_style_string_map =
OptionsHelper::compaction_stop_style_string_map;
static auto& compression_type_string_map =
OptionsHelper::compression_type_string_map;
static auto& encoding_type_string_map = OptionsHelper::encoding_type_string_map;
static auto& compaction_style_string_map =
OptionsHelper::compaction_style_string_map;
static auto& compaction_pri_string_map =
OptionsHelper::compaction_pri_string_map;
#endif // !ROCKSDB_LITE
} // namespace ROCKSDB_NAMESPACE