From 3886c780d41e12c059cba274eee376a5eb652a3d Mon Sep 17 00:00:00 2001
From: ddval <10481361+ddval@user.noreply.gitee.com>
Date: Wed, 28 May 2025 09:48:12 +0800
Subject: [PATCH] =?UTF-8?q?=E6=96=B0=E5=A2=9Eoptions=5Fhelper.h=E6=96=87?=
 =?UTF-8?q?=E4=BB=B6?=
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---
 .../rocksdb/rocksdb/options/options_helper.h  | 118 ++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 storage/rocksdb/rocksdb/options/options_helper.h

diff --git a/storage/rocksdb/rocksdb/options/options_helper.h b/storage/rocksdb/rocksdb/options/options_helper.h
new file mode 100644
index 000000000..43ddbdfc3
--- /dev/null
+++ b/storage/rocksdb/rocksdb/options/options_helper.h
@@ -0,0 +1,118 @@
+// 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 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);
+
+#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
-- 
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