578fb0b1dc
Summary: A simple blob file dumper. Closes https://github.com/facebook/rocksdb/pull/2242 Differential Revision: D5097553 Pulled By: yiwu-arbug fbshipit-source-id: c6e00d949fcd3658f9f68da9352f06339fac418d
55 lines
1.5 KiB
C++
55 lines
1.5 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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// This source code is also licensed under the GPLv2 license found in the
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// COPYING file in the root directory of this source tree.
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#pragma once
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#ifndef ROCKSDB_LITE
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#include <memory>
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#include <string>
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#include <utility>
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#include "rocksdb/slice.h"
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#include "rocksdb/status.h"
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#include "util/file_reader_writer.h"
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#include "utilities/blob_db/blob_log_format.h"
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namespace rocksdb {
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namespace blob_db {
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class BlobDumpTool {
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public:
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enum class DisplayType {
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kNone,
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kRaw,
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kHex,
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kDetail,
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};
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BlobDumpTool();
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Status Run(const std::string& filename, DisplayType key_type,
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DisplayType blob_type);
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private:
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std::unique_ptr<RandomAccessFileReader> reader_;
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std::unique_ptr<char> buffer_;
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size_t buffer_size_;
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Status Read(uint64_t offset, size_t size, Slice* result);
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Status DumpBlobLogHeader(uint64_t* offset);
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Status DumpBlobLogFooter(uint64_t file_size, uint64_t* footer_offset);
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Status DumpRecord(DisplayType show_key, DisplayType show_blob,
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uint64_t* offset);
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void DumpSlice(const Slice s, DisplayType type);
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template <class T>
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std::string GetString(std::pair<T, T> p);
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};
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} // namespace blob_db
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} // namespace rocksdb
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#endif // ROCKSDB_LITE
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