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https://github.com/facebook/rocksdb.git
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a14b7873ee
Summary: Introduces a new class for managing write buffer memory across column families. We supplement ColumnFamilyOptions::write_buffer_size with ColumnFamilyOptions::write_buffer, a shared pointer to a WriteBuffer instance that enforces memory limits before flushing out to disk. Test Plan: Added SharedWriteBuffer unit test to db_test.cc Reviewers: sdong, rven, ljin, igor Reviewed By: igor Subscribers: tnovak, yhchiang, dhruba, xjin, MarkCallaghan, yoshinorim Differential Revision: https://reviews.facebook.net/D22581
39 lines
1 KiB
C++
39 lines
1 KiB
C++
// Copyright (c) 2014, 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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#pragma once
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#include <vector>
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#include <string>
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#include "util/dynamic_bloom.h"
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namespace rocksdb {
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class Logger;
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class BloomBlockBuilder {
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public:
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static const std::string kBloomBlock;
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explicit BloomBlockBuilder(uint32_t num_probes = 6)
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: bloom_(num_probes, nullptr) {}
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void SetTotalBits(Allocator* allocator, uint32_t total_bits,
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uint32_t locality, size_t huge_page_tlb_size,
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Logger* logger) {
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bloom_.SetTotalBits(allocator, total_bits, locality, huge_page_tlb_size,
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logger);
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}
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uint32_t GetNumBlocks() const { return bloom_.GetNumBlocks(); }
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void AddKeysHashes(const std::vector<uint32_t>& keys_hashes);
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Slice Finish();
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private:
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DynamicBloom bloom_;
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};
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}; // namespace rocksdb
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