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Diffstat (limited to '')
-rw-r--r-- | src/rocksdb/table/block_based/parsed_full_filter_block.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/rocksdb/table/block_based/parsed_full_filter_block.h b/src/rocksdb/table/block_based/parsed_full_filter_block.h new file mode 100644 index 000000000..95d7b5208 --- /dev/null +++ b/src/rocksdb/table/block_based/parsed_full_filter_block.h @@ -0,0 +1,42 @@ +// 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 <memory> + +#include "table/format.h" + +namespace ROCKSDB_NAMESPACE { + +class FilterBitsReader; +class FilterPolicy; + +// The sharable/cachable part of the full filter. +class ParsedFullFilterBlock { + public: + ParsedFullFilterBlock(const FilterPolicy* filter_policy, + BlockContents&& contents); + ~ParsedFullFilterBlock(); + + FilterBitsReader* filter_bits_reader() const { + return filter_bits_reader_.get(); + } + + // TODO: consider memory usage of the FilterBitsReader + size_t ApproximateMemoryUsage() const { + return block_contents_.ApproximateMemoryUsage(); + } + + bool own_bytes() const { return block_contents_.own_bytes(); } + + const Slice GetBlockContentsData() const { return block_contents_.data; } + + private: + BlockContents block_contents_; + std::unique_ptr<FilterBitsReader> filter_bits_reader_; +}; + +} // namespace ROCKSDB_NAMESPACE |