ebd5639b6d
Summary: Add the flag --prefix to the sst_dump tool This flag is similar to, and exclusive from, the --from flag. --prefix=0x00FF will return all rows prefixed with 0x00FF. The --to flag may also be specified and will work as expected. These changes were used to help in debugging the power cycle corruption issue and theses changes were tested by scanning through a udb. Closes https://github.com/facebook/rocksdb/pull/1984 Differential Revision: D4691814 Pulled By: reidHoruff fbshipit-source-id: 027f261
80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#pragma once
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#ifndef ROCKSDB_LITE
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#include "rocksdb/sst_dump_tool.h"
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#include <memory>
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#include <string>
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#include "db/dbformat.h"
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#include "util/cf_options.h"
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#include "util/file_reader_writer.h"
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namespace rocksdb {
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class SstFileReader {
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public:
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explicit SstFileReader(const std::string& file_name, bool verify_checksum,
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bool output_hex);
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Status ReadSequential(bool print_kv, uint64_t read_num, bool has_from,
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const std::string& from_key, bool has_to,
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const std::string& to_key,
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bool use_from_as_prefix = false);
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Status ReadTableProperties(
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std::shared_ptr<const TableProperties>* table_properties);
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uint64_t GetReadNumber() { return read_num_; }
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TableProperties* GetInitTableProperties() { return table_properties_.get(); }
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Status DumpTable(const std::string& out_filename);
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Status getStatus() { return init_result_; }
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int ShowAllCompressionSizes(size_t block_size);
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private:
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// Get the TableReader implementation for the sst file
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Status GetTableReader(const std::string& file_path);
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Status ReadTableProperties(uint64_t table_magic_number,
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RandomAccessFileReader* file, uint64_t file_size);
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uint64_t CalculateCompressedTableSize(const TableBuilderOptions& tb_options,
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size_t block_size);
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Status SetTableOptionsByMagicNumber(uint64_t table_magic_number);
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Status SetOldTableOptions();
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// Helper function to call the factory with settings specific to the
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// factory implementation
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Status NewTableReader(const ImmutableCFOptions& ioptions,
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const EnvOptions& soptions,
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const InternalKeyComparator& internal_comparator,
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uint64_t file_size,
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unique_ptr<TableReader>* table_reader);
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std::string file_name_;
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uint64_t read_num_;
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bool verify_checksum_;
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bool output_hex_;
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EnvOptions soptions_;
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// options_ and internal_comparator_ will also be used in
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// ReadSequential internally (specifically, seek-related operations)
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Options options_;
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Status init_result_;
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unique_ptr<TableReader> table_reader_;
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unique_ptr<RandomAccessFileReader> file_;
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const ImmutableCFOptions ioptions_;
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InternalKeyComparator internal_comparator_;
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unique_ptr<TableProperties> table_properties_;
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};
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} // namespace rocksdb
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#endif // ROCKSDB_LITE
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