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// 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
#include "port/port.h"
#include "rocksdb/slice_transform.h"
#include "rocksdb/memtablerep.h"
namespace rocksdb {
class HashCuckooRepFactory : public MemTableRepFactory {
// maxinum number of hash functions used in the cuckoo hash.
static const unsigned int kMaxHashCount = 10;
explicit HashCuckooRepFactory(size_t write_buffer_size,
size_t average_data_size,
unsigned int hash_function_count)
: write_buffer_size_(write_buffer_size),
hash_function_count_(hash_function_count) {}
virtual ~HashCuckooRepFactory() {}
using MemTableRepFactory::CreateMemTableRep;
virtual MemTableRep* CreateMemTableRep(
const MemTableRep::KeyComparator& compare, Allocator* allocator,
const SliceTransform* transform, Logger* logger) override;
virtual const char* Name() const override { return "HashCuckooRepFactory"; }
size_t write_buffer_size_;
size_t average_data_size_;
const unsigned int hash_function_count_;
} // namespace rocksdb
#endif // ROCKSDB_LITE