ceph/src/rocksdb/db/compaction/compaction_state.h

   1 //  Copyright (c) Meta Platforms, Inc. and affiliates.
   2 //
   3 //  This source code is licensed under both the GPLv2 (found in the
   4 //  COPYING file in the root directory) and Apache 2.0 License
   5 //  (found in the LICENSE.Apache file in the root directory).
   6 //
   7 // Copyright (c) 2011 The LevelDB Authors. All rights reserved.
   8 // Use of this source code is governed by a BSD-style license that can be
   9 // found in the LICENSE file. See the AUTHORS file for names of contributors.
  10
  11 #pragma once
  12
  13 #include "db/compaction/compaction.h"
  14 #include "db/compaction/subcompaction_state.h"
  15 #include "db/internal_stats.h"
  16
  17 // Data structures used for compaction_job and compaction_service_job which has
  18 // the list of sub_compact_states and the aggregated information for the
  19 // compaction.
  20 namespace ROCKSDB_NAMESPACE {
  21
  22 // Maintains state for the entire compaction
  23 class CompactionState {
  24  public:
  25   Compaction* const compaction;
  26
  27   // REQUIRED: subcompaction states are stored in order of increasing key-range
  28   std::vector<SubcompactionState> sub_compact_states;
  29   Status status;
  30
  31   void AggregateCompactionStats(
  32       InternalStats::CompactionStatsFull& compaction_stats,
  33       CompactionJobStats& compaction_job_stats);
  34
  35   explicit CompactionState(Compaction* c) : compaction(c) {}
  36
  37   Slice SmallestUserKey();
  38
  39   Slice LargestUserKey();
  40 };
  41
  42 }  // namespace ROCKSDB_NAMESPACE