update ceph source to reef 18.1.2

[ceph.git] / ceph / src / rocksdb / db / compaction / compaction_picker_universal.h

//  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_NAMESPACE {
class UniversalCompactionPicker : public CompactionPicker {
 public:
  UniversalCompactionPicker(const ImmutableOptions& ioptions,
                            const InternalKeyComparator* icmp)
      : CompactionPicker(ioptions, icmp) {}
  virtual Compaction* PickCompaction(
      const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
      const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
      LogBuffer* log_buffer,
      SequenceNumber earliest_memtable_seqno = kMaxSequenceNumber) override;
  virtual int MaxOutputLevel() const override { return NumberLevels() - 1; }

  virtual bool NeedsCompaction(
      const VersionStorageInfo* vstorage) const override;
};
}  // namespace ROCKSDB_NAMESPACE
#endif  // !ROCKSDB_LITE