rocksdb/utilities/blob_db/blob_dump_tool.h

53 lines
1.3 KiB
C
Raw Normal View History

// 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 <utility>
#include "rocksdb/slice.h"
#include "rocksdb/status.h"
#include "util/file_reader_writer.h"
#include "utilities/blob_db/blob_log_format.h"
namespace rocksdb {
namespace blob_db {
class BlobDumpTool {
public:
enum class DisplayType {
kNone,
kRaw,
kHex,
kDetail,
};
BlobDumpTool();
Status Run(const std::string& filename, DisplayType key_type,
DisplayType blob_type);
private:
std::unique_ptr<RandomAccessFileReader> reader_;
std::unique_ptr<char> buffer_;
size_t buffer_size_;
Status Read(uint64_t offset, size_t size, Slice* result);
Status DumpBlobLogHeader(uint64_t* offset);
Status DumpBlobLogFooter(uint64_t file_size, uint64_t* footer_offset);
Status DumpRecord(DisplayType show_key, DisplayType show_blob,
uint64_t* offset);
void DumpSlice(const Slice s, DisplayType type);
template <class T>
std::string GetString(std::pair<T, T> p);
};
} // namespace blob_db
} // namespace rocksdb
#endif // ROCKSDB_LITE