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38 lines
1.2 KiB
38 lines
1.2 KiB
1 year ago
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#pragma once
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#include "rocksdb/options.h"
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#include "rocksdb/status.h"
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namespace ROCKSDB_NAMESPACE {
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class Version;
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class Slice;
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class FilePrefetchBuffer;
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class PinnableSlice;
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class BlobIndex;
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// A thin wrapper around the blob retrieval functionality of Version.
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class BlobFetcher {
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public:
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BlobFetcher(const Version* version, const ReadOptions& read_options)
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: version_(version), read_options_(read_options) {}
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Status FetchBlob(const Slice& user_key, const Slice& blob_index_slice,
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FilePrefetchBuffer* prefetch_buffer,
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PinnableSlice* blob_value, uint64_t* bytes_read) const;
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Status FetchBlob(const Slice& user_key, const BlobIndex& blob_index,
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FilePrefetchBuffer* prefetch_buffer,
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PinnableSlice* blob_value, uint64_t* bytes_read) const;
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private:
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const Version* version_;
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ReadOptions read_options_;
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};
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} // namespace ROCKSDB_NAMESPACE
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