3a171dcb51
Summary: TLB page allocation errors are now logged to info logs, instead of stderr. In order to do that, mem table rep's factory functions take a info logger now. Test Plan: make all check Reviewers: haobo, igor, yhchiang Reviewed By: yhchiang CC: leveldb, yhchiang, dhruba Differential Revision: https://reviews.facebook.net/D18471
43 lines
1.6 KiB
C++
43 lines
1.6 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under the BSD-style license found in the
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
|
// of patent rights can be found in the PATENTS file in the same 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.
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
#pragma once
|
|
#include "rocksdb/slice_transform.h"
|
|
#include "rocksdb/memtablerep.h"
|
|
|
|
namespace rocksdb {
|
|
|
|
class HashCuckooRepFactory : public MemTableRepFactory {
|
|
public:
|
|
// 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),
|
|
average_data_size_(average_data_size),
|
|
hash_function_count_(hash_function_count) {}
|
|
|
|
virtual ~HashCuckooRepFactory() {}
|
|
|
|
virtual MemTableRep* CreateMemTableRep(
|
|
const MemTableRep::KeyComparator& compare, Arena* arena,
|
|
const SliceTransform* transform, Logger* logger) override;
|
|
|
|
virtual const char* Name() const override { return "HashCuckooRepFactory"; }
|
|
|
|
private:
|
|
size_t write_buffer_size_;
|
|
size_t average_data_size_;
|
|
const unsigned int hash_function_count_;
|
|
};
|
|
} // namespace rocksdb
|
|
#endif // ROCKSDB_LITE
|