rocksdb/db/compaction/compaction_picker_universal.h
sdong 9bd5fce6e8 Refactor UniversalCompactionPicker code a little bit (#5639)
Summary:
Several functions of UniversalCompactionPicker share most of the parameters. Move these functions to a class with those shared arguments as class members. Hopefully this will make code slightly easier to maintain.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5639

Test Plan: Run all existing test.

Differential Revision: D16996403

fbshipit-source-id: fffafd1897ab132b420b1dec073542cffb5c44de
2019-09-16 10:51:11 -07:00

33 lines
1.3 KiB
C++

// 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).
//
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#pragma once
#ifndef ROCKSDB_LITE
#include "db/compaction/compaction_picker.h"
namespace rocksdb {
class UniversalCompactionPicker : public CompactionPicker {
public:
UniversalCompactionPicker(const ImmutableCFOptions& ioptions,
const InternalKeyComparator* icmp)
: CompactionPicker(ioptions, icmp) {}
virtual Compaction* PickCompaction(const std::string& cf_name,
const MutableCFOptions& mutable_cf_options,
VersionStorageInfo* vstorage,
LogBuffer* log_buffer) override;
virtual int MaxOutputLevel() const override { return NumberLevels() - 1; }
virtual bool NeedsCompaction(
const VersionStorageInfo* vstorage) const override;
};
} // namespace rocksdb
#endif // !ROCKSDB_LITE