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4e60663b31
Summary: In C++, `extern` is redundant in a number of cases: * "Global" function declarations and definitions * "Global" variable definitions when already declared `extern` For consistency and simplicity, I've removed these in code that *we own*. In a couple of cases, I removed obsolete declarations, and for MagicNumber constants, I have consolidated the declarations into a header file (format.h) as standard best practice would prescribe. Pull Request resolved: https://github.com/facebook/rocksdb/pull/12300 Test Plan: no functional changes, CI Reviewed By: ajkr Differential Revision: D53148629 Pulled By: pdillinger fbshipit-source-id: fb8d927959892e03af09b0c0d542b0a3b38fd886
116 lines
4.6 KiB
C++
116 lines
4.6 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#pragma once
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#include <map>
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#include <stdexcept>
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#include <string>
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#include <vector>
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#include "rocksdb/advanced_options.h"
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#include "rocksdb/options.h"
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#include "rocksdb/status.h"
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#include "rocksdb/table.h"
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namespace ROCKSDB_NAMESPACE {
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struct ColumnFamilyOptions;
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struct ConfigOptions;
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struct DBOptions;
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struct ImmutableCFOptions;
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struct ImmutableDBOptions;
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struct MutableDBOptions;
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struct MutableCFOptions;
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struct Options;
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std::vector<CompressionType> GetSupportedCompressions();
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std::vector<CompressionType> GetSupportedDictCompressions();
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std::vector<ChecksumType> GetSupportedChecksums();
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inline bool IsSupportedChecksumType(ChecksumType type) {
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// Avoid annoying compiler warning-as-error (-Werror=type-limits)
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auto min = kNoChecksum;
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auto max = kXXH3;
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return type >= min && type <= max;
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}
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// Checks that the combination of DBOptions and ColumnFamilyOptions are valid
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Status ValidateOptions(const DBOptions& db_opts,
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const ColumnFamilyOptions& cf_opts);
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DBOptions BuildDBOptions(const ImmutableDBOptions& immutable_db_options,
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const MutableDBOptions& mutable_db_options);
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ColumnFamilyOptions BuildColumnFamilyOptions(
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const ColumnFamilyOptions& ioptions,
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const MutableCFOptions& mutable_cf_options);
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void UpdateColumnFamilyOptions(const ImmutableCFOptions& ioptions,
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ColumnFamilyOptions* cf_opts);
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void UpdateColumnFamilyOptions(const MutableCFOptions& moptions,
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ColumnFamilyOptions* cf_opts);
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std::unique_ptr<Configurable> DBOptionsAsConfigurable(
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const MutableDBOptions& opts);
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std::unique_ptr<Configurable> DBOptionsAsConfigurable(
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const DBOptions& opts,
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const std::unordered_map<std::string, std::string>* opt_map = nullptr);
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std::unique_ptr<Configurable> CFOptionsAsConfigurable(
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const MutableCFOptions& opts);
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std::unique_ptr<Configurable> CFOptionsAsConfigurable(
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const ColumnFamilyOptions& opts,
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const std::unordered_map<std::string, std::string>* opt_map = nullptr);
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Status StringToMap(const std::string& opts_str,
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std::unordered_map<std::string, std::string>* opts_map);
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struct OptionsHelper {
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static const std::string kCFOptionsName /*= "ColumnFamilyOptions"*/;
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static const std::string kDBOptionsName /*= "DBOptions" */;
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static std::map<CompactionStyle, std::string> compaction_style_to_string;
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static std::map<CompactionPri, std::string> compaction_pri_to_string;
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static std::map<CompactionStopStyle, std::string>
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compaction_stop_style_to_string;
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static std::map<Temperature, std::string> temperature_to_string;
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static std::unordered_map<std::string, ChecksumType> checksum_type_string_map;
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static std::unordered_map<std::string, CompressionType>
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compression_type_string_map;
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static std::unordered_map<std::string, PrepopulateBlobCache>
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prepopulate_blob_cache_string_map;
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static std::unordered_map<std::string, CompactionStopStyle>
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compaction_stop_style_string_map;
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static std::unordered_map<std::string, EncodingType> encoding_type_string_map;
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static std::unordered_map<std::string, CompactionStyle>
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compaction_style_string_map;
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static std::unordered_map<std::string, CompactionPri>
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compaction_pri_string_map;
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static std::unordered_map<std::string, Temperature> temperature_string_map;
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};
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// Some aliasing
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static auto& compaction_style_to_string =
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OptionsHelper::compaction_style_to_string;
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static auto& compaction_pri_to_string = OptionsHelper::compaction_pri_to_string;
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static auto& compaction_stop_style_to_string =
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OptionsHelper::compaction_stop_style_to_string;
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static auto& temperature_to_string = OptionsHelper::temperature_to_string;
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static auto& checksum_type_string_map = OptionsHelper::checksum_type_string_map;
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static auto& compaction_stop_style_string_map =
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OptionsHelper::compaction_stop_style_string_map;
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static auto& compression_type_string_map =
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OptionsHelper::compression_type_string_map;
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static auto& encoding_type_string_map = OptionsHelper::encoding_type_string_map;
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static auto& compaction_style_string_map =
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OptionsHelper::compaction_style_string_map;
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static auto& compaction_pri_string_map =
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OptionsHelper::compaction_pri_string_map;
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static auto& temperature_string_map = OptionsHelper::temperature_string_map;
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static auto& prepopulate_blob_cache_string_map =
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OptionsHelper::prepopulate_blob_cache_string_map;
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} // namespace ROCKSDB_NAMESPACE
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