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Tip revision: b8c78da6ede4baf09af39146a79b0727ac3914c7 authored by agiardullo on 18 February 2016, 23:13:33 UTC
update fb-specific dependencies by running update_dependencies.sh
update fb-specific dependencies by running update_dependencies.sh
Tip revision: b8c78da
version_builder.h
// 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;
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 EnvOptions& env_options, TableCache* table_cache,
VersionStorageInfo* base_vstorage, Logger* info_log = nullptr);
~VersionBuilder();
void CheckConsistency(VersionStorageInfo* vstorage);
void CheckConsistencyForDeletes(VersionEdit* edit, uint64_t number,
int level);
void Apply(VersionEdit* edit);
void SaveTo(VersionStorageInfo* vstorage);
void LoadTableHandlers(InternalStats* internal_stats, int max_threads = 1);
void MaybeAddFile(VersionStorageInfo* vstorage, int level, FileMetaData* f);
private:
class Rep;
Rep* rep_;
};
extern bool NewestFirstBySeqNo(FileMetaData* a, FileMetaData* b);
} // namespace rocksdb