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34 lines
1.4 KiB
34 lines
1.4 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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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#pragma once
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#include "db/compaction/compaction_picker.h"
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namespace ROCKSDB_NAMESPACE {
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// Picking compactions for leveled compaction. See wiki page
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// https://github.com/facebook/rocksdb/wiki/Leveled-Compaction
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// for description of Leveled compaction.
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class LevelCompactionPicker : public CompactionPicker {
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public:
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LevelCompactionPicker(const ImmutableOptions& ioptions,
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const InternalKeyComparator* icmp)
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: CompactionPicker(ioptions, icmp) {}
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virtual Compaction* PickCompaction(const std::string& cf_name,
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const MutableCFOptions& mutable_cf_options,
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const MutableDBOptions& mutable_db_options,
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VersionStorageInfo* vstorage,
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LogBuffer* log_buffer) override;
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virtual bool NeedsCompaction(
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const VersionStorageInfo* vstorage) const override;
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};
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} // namespace ROCKSDB_NAMESPACE
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