ceph/src/rocksdb/memtable/hash_skiplist_rep.h

   1 // Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
   2 // This source code is licensed under the BSD-style license found in the
   3 // LICENSE file in the root directory of this source tree. An additional grant
   4 // of patent rights can be found in the PATENTS file in the same directory.
   5 // Copyright (c) 2011 The LevelDB Authors. All rights reserved.
   6 // Use of this source code is governed by a BSD-style license that can be
   7 // found in the LICENSE file. See the AUTHORS file for names of contributors.
   8
   9 #pragma once
  10 #ifndef ROCKSDB_LITE
  11 #include "rocksdb/slice_transform.h"
  12 #include "rocksdb/memtablerep.h"
  13
  14 namespace rocksdb {
  15
  16 class HashSkipListRepFactory : public MemTableRepFactory {
  17  public:
  18   explicit HashSkipListRepFactory(
  19     size_t bucket_count,
  20     int32_t skiplist_height,
  21     int32_t skiplist_branching_factor)
  22       : bucket_count_(bucket_count),
  23         skiplist_height_(skiplist_height),
  24         skiplist_branching_factor_(skiplist_branching_factor) { }
  25
  26   virtual ~HashSkipListRepFactory() {}
  27
  28   virtual MemTableRep* CreateMemTableRep(
  29       const MemTableRep::KeyComparator& compare, MemTableAllocator* allocator,
  30       const SliceTransform* transform, Logger* logger) override;
  31
  32   virtual const char* Name() const override {
  33     return "HashSkipListRepFactory";
  34   }
  35
  36  private:
  37   const size_t bucket_count_;
  38   const int32_t skiplist_height_;
  39   const int32_t skiplist_branching_factor_;
  40 };
  41
  42 }
  43 #endif  // ROCKSDB_LITE