442404558a
Summary: The whole point of the pimpl idiom is to hide implementation details. Internal helper methods like `CheckConsistency`, `CheckConsistencyForDeletes`, and `MaybeAddFile` do not belong in the public interface of the class. In addition, the patch switches to `unique_ptr` for the implementation object instead of using a raw `delete`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6556 Test Plan: `make check` Reviewed By: riversand963 Differential Revision: D20523568 Pulled By: ltamasi fbshipit-source-id: 5bbb0ccebd0c47a33b815398c7f9cfe13bd775ac
49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
// 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 <memory>
|
|
|
|
#include "rocksdb/file_system.h"
|
|
#include "rocksdb/slice_transform.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
|
|
class TableCache;
|
|
class VersionStorageInfo;
|
|
class VersionEdit;
|
|
struct FileMetaData;
|
|
class InternalStats;
|
|
|
|
// A helper class so we can efficiently apply a whole sequence
|
|
// of edits to a particular state without creating intermediate
|
|
// Versions that contain full copies of the intermediate state.
|
|
class VersionBuilder {
|
|
public:
|
|
VersionBuilder(const FileOptions& file_options, TableCache* table_cache,
|
|
VersionStorageInfo* base_vstorage, Logger* info_log = nullptr);
|
|
~VersionBuilder();
|
|
|
|
bool CheckConsistencyForNumLevels();
|
|
Status Apply(VersionEdit* edit);
|
|
Status SaveTo(VersionStorageInfo* vstorage);
|
|
Status LoadTableHandlers(InternalStats* internal_stats, int max_threads,
|
|
bool prefetch_index_and_filter_in_cache,
|
|
bool is_initial_load,
|
|
const SliceTransform* prefix_extractor);
|
|
|
|
private:
|
|
class Rep;
|
|
std::unique_ptr<Rep> rep_;
|
|
};
|
|
|
|
extern bool NewestFirstBySeqNo(FileMetaData* a, FileMetaData* b);
|
|
} // namespace ROCKSDB_NAMESPACE
|