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rocksdb/include/rocksdb/sst_file_reader.h

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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 "rocksdb/iterator.h"
#include "rocksdb/options.h"
#include "rocksdb/slice.h"
#include "rocksdb/table_properties.h"
namespace ROCKSDB_NAMESPACE {
// SstFileReader is used to read sst files that are generated by DB or
// SstFileWriter.
class SstFileReader {
public:
SstFileReader(const Options& options);
~SstFileReader();
// Prepares to read from the file located at "file_path".
Status Open(const std::string& file_path);
// Returns a new iterator over the table contents.
// Most read options provide the same control as we read from DB.
// If "snapshot" is nullptr, the iterator returns only the latest keys.
Iterator* NewIterator(const ReadOptions& options);
std::shared_ptr<const TableProperties> GetTableProperties() const;
// Verifies whether there is corruption in this table.
Status VerifyChecksum(const ReadOptions& /*read_options*/);
Status VerifyChecksum() { return VerifyChecksum(ReadOptions()); }
private:
struct Rep;
std::unique_ptr<Rep> rep_;
};
} // namespace ROCKSDB_NAMESPACE