1 files changed, 101 insertions, 0 deletions
diff --git a/src/rocksdb/table/sst_file_dumper.h b/src/rocksdb/table/sst_file_dumper.h
new file mode 100644
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--- /dev/null
+++ b/src/rocksdb/table/sst_file_dumper.h
@@ -0,0 +1,101 @@
+// 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
+#ifndef ROCKSDB_LITE
+
+#include <memory>
+#include <string>
+
+#include "db/dbformat.h"
+#include "file/writable_file_writer.h"
+#include "options/cf_options.h"
+#include "rocksdb/advanced_options.h"
+
+namespace ROCKSDB_NAMESPACE {
+
+class SstFileDumper {
+ public:
+  explicit SstFileDumper(const Options& options, const std::string& file_name,
+                         Temperature file_temp, size_t readahead_size,
+                         bool verify_checksum, bool output_hex,
+                         bool decode_blob_index,
+                         const EnvOptions& soptions = EnvOptions(),
+                         bool silent = false);
+
+  Status ReadSequential(bool print_kv, uint64_t read_num, bool has_from,
+                        const std::string& from_key, bool has_to,
+                        const std::string& to_key,
+                        bool use_from_as_prefix = false);
+
+  Status ReadTableProperties(
+      std::shared_ptr<const TableProperties>* table_properties);
+  uint64_t GetReadNumber() { return read_num_; }
+  TableProperties* GetInitTableProperties() { return table_properties_.get(); }
+
+  Status VerifyChecksum();
+  Status DumpTable(const std::string& out_filename);
+  Status getStatus() { return init_result_; }
+
+  Status ShowAllCompressionSizes(
+      size_t block_size,
+      const std::vector<std::pair<CompressionType, const char*>>&
+          compression_types,
+      int32_t compress_level_from, int32_t compress_level_to,
+      uint32_t max_dict_bytes, uint32_t zstd_max_train_bytes,
+      uint64_t max_dict_buffer_bytes, bool use_zstd_dict_trainer);
+
+  Status ShowCompressionSize(size_t block_size, CompressionType compress_type,
+                             const CompressionOptions& compress_opt);
+
+ private:
+  // Get the TableReader implementation for the sst file
+  Status GetTableReader(const std::string& file_path);
+  Status ReadTableProperties(uint64_t table_magic_number,
+                             RandomAccessFileReader* file, uint64_t file_size,
+                             FilePrefetchBuffer* prefetch_buffer);
+
+  Status CalculateCompressedTableSize(const TableBuilderOptions& tb_options,
+                                      size_t block_size,
+                                      uint64_t* num_data_blocks,
+                                      uint64_t* compressed_table_size);
+
+  Status SetTableOptionsByMagicNumber(uint64_t table_magic_number);
+  Status SetOldTableOptions();
+
+  // Helper function to call the factory with settings specific to the
+  // factory implementation
+  Status NewTableReader(const ImmutableOptions& ioptions,
+                        const EnvOptions& soptions,
+                        const InternalKeyComparator& internal_comparator,
+                        uint64_t file_size,
+                        std::unique_ptr<TableReader>* table_reader);
+
+  std::string file_name_;
+  uint64_t read_num_;
+  Temperature file_temp_;
+  bool output_hex_;
+  bool decode_blob_index_;
+  EnvOptions soptions_;
+  // less verbose in stdout/stderr
+  bool silent_;
+
+  // options_ and internal_comparator_ will also be used in
+  // ReadSequential internally (specifically, seek-related operations)
+  Options options_;
+
+  Status init_result_;
+  std::unique_ptr<TableReader> table_reader_;
+  std::unique_ptr<RandomAccessFileReader> file_;
+
+  const ImmutableOptions ioptions_;
+  const MutableCFOptions moptions_;
+  ReadOptions read_options_;
+  InternalKeyComparator internal_comparator_;
+  std::unique_ptr<TableProperties> table_properties_;
+};
+
+}  // namespace ROCKSDB_NAMESPACE
+
+#endif  // ROCKSDB_LITE