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7c673cae | 1 | // Copyright (c) 2011-present, Facebook, Inc. All rights reserved. |
11fdf7f2 TL |
2 | // This source code is licensed under both the GPLv2 (found in the |
3 | // COPYING file in the root directory) and Apache 2.0 License | |
4 | // (found in the LICENSE.Apache file in the root directory). | |
7c673cae FG |
5 | // |
6 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | |
7 | // Use of this source code is governed by a BSD-style license that can be | |
8 | // found in the LICENSE file. See the AUTHORS file for names of contributors. | |
9 | // | |
10 | #pragma once | |
11 | #include "rocksdb/env.h" | |
11fdf7f2 | 12 | #include "rocksdb/slice_transform.h" |
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13 | |
14 | namespace rocksdb { | |
15 | ||
16 | class TableCache; | |
17 | class VersionStorageInfo; | |
18 | class VersionEdit; | |
19 | struct FileMetaData; | |
20 | class InternalStats; | |
21 | ||
22 | // A helper class so we can efficiently apply a whole sequence | |
23 | // of edits to a particular state without creating intermediate | |
24 | // Versions that contain full copies of the intermediate state. | |
25 | class VersionBuilder { | |
26 | public: | |
27 | VersionBuilder(const EnvOptions& env_options, TableCache* table_cache, | |
28 | VersionStorageInfo* base_vstorage, Logger* info_log = nullptr); | |
29 | ~VersionBuilder(); | |
30 | void CheckConsistency(VersionStorageInfo* vstorage); | |
31 | void CheckConsistencyForDeletes(VersionEdit* edit, uint64_t number, | |
32 | int level); | |
11fdf7f2 | 33 | bool CheckConsistencyForNumLevels(); |
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34 | void Apply(VersionEdit* edit); |
35 | void SaveTo(VersionStorageInfo* vstorage); | |
494da23a TL |
36 | Status LoadTableHandlers(InternalStats* internal_stats, int max_threads, |
37 | bool prefetch_index_and_filter_in_cache, | |
38 | bool is_initial_load, | |
39 | const SliceTransform* prefix_extractor); | |
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40 | void MaybeAddFile(VersionStorageInfo* vstorage, int level, FileMetaData* f); |
41 | ||
42 | private: | |
43 | class Rep; | |
44 | Rep* rep_; | |
45 | }; | |
46 | ||
47 | extern bool NewestFirstBySeqNo(FileMetaData* a, FileMetaData* b); | |
48 | } // namespace rocksdb |