rocksdb/db/version_builder.h
sdong 86905e3cbb Move VersionBuilder logic to a separate .cc file
Summary: Move all the logic of VersionBuilder to a separate .cc file

Test Plan: make all check

Reviewers: ljin, yhchiang, rven, igor

Reviewed By: igor

Subscribers: leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D28083
2014-10-31 16:34:38 -07:00

43 lines
1.5 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.
//
#pragma once
#include "rocksdb/env.h"
namespace rocksdb {
class TableCache;
class VersionStorageInfo;
class VersionEdit;
struct FileMetaData;
// 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 EnvOptions& env_options, TableCache* table_cache,
VersionStorageInfo* base_vstorage);
~VersionBuilder();
void CheckConsistency(VersionStorageInfo* vstorage);
void CheckConsistencyForDeletes(VersionEdit* edit, uint64_t number,
int level);
void Apply(VersionEdit* edit);
void SaveTo(VersionStorageInfo* vstorage);
void LoadTableHandlers();
void MaybeAddFile(VersionStorageInfo* vstorage, int level, FileMetaData* f);
private:
class Rep;
Rep* rep_;
};
extern bool NewestFirstBySeqNo(FileMetaData* a, FileMetaData* b);
} // namespace rocksdb