/Users/deen/code/yugabyte-db/src/yb/rocksdb/db/db_impl_readonly.h
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1 | | // Copyright (c) 2011-present, Facebook, Inc. All rights reserved. |
2 | | // This source code is licensed under the BSD-style license found in the |
3 | | // LICENSE file in the root directory of this source tree. An additional grant |
4 | | // of patent rights can be found in the PATENTS file in the same directory. |
5 | | // |
6 | | // The following only applies to changes made to this file as part of YugaByte development. |
7 | | // |
8 | | // Portions Copyright (c) YugaByte, Inc. |
9 | | // |
10 | | // Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
11 | | // in compliance with the License. You may obtain a copy of the License at |
12 | | // |
13 | | // http://www.apache.org/licenses/LICENSE-2.0 |
14 | | // |
15 | | // Unless required by applicable law or agreed to in writing, software distributed under the License |
16 | | // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
17 | | // or implied. See the License for the specific language governing permissions and limitations |
18 | | // under the License. |
19 | | // |
20 | | #ifndef ROCKSDB_DB_DB_IMPL_READONLY_H |
21 | | #define ROCKSDB_DB_DB_IMPL_READONLY_H |
22 | | |
23 | | #pragma once |
24 | | |
25 | | #ifndef ROCKSDB_LITE |
26 | | |
27 | | #include "yb/rocksdb/db/db_impl.h" |
28 | | #include <vector> |
29 | | #include <string> |
30 | | |
31 | | namespace rocksdb { |
32 | | |
33 | | class DBImplReadOnly : public DBImpl { |
34 | | public: |
35 | | DBImplReadOnly(const DBOptions& options, const std::string& dbname); |
36 | | virtual ~DBImplReadOnly(); |
37 | | |
38 | | // Implementations of the DB interface |
39 | | using DB::Get; |
40 | | virtual Status Get(const ReadOptions& options, |
41 | | ColumnFamilyHandle* column_family, const Slice& key, |
42 | | std::string* value) override; |
43 | | |
44 | | // TODO: Implement ReadOnly MultiGet? |
45 | | |
46 | | using DBImpl::NewIterator; |
47 | | virtual Iterator* NewIterator(const ReadOptions&, |
48 | | ColumnFamilyHandle* column_family) override; |
49 | | |
50 | | virtual Status NewIterators( |
51 | | const ReadOptions& options, |
52 | | const std::vector<ColumnFamilyHandle*>& column_families, |
53 | | std::vector<Iterator*>* iterators) override; |
54 | | |
55 | | using DBImpl::Put; |
56 | | virtual Status Put(const WriteOptions& options, |
57 | | ColumnFamilyHandle* column_family, const Slice& key, |
58 | 3 | const Slice& value) override { |
59 | 3 | return STATUS(NotSupported, "Not supported operation in read only mode."); |
60 | 3 | } |
61 | | using DBImpl::Merge; |
62 | | virtual Status Merge(const WriteOptions& options, |
63 | | ColumnFamilyHandle* column_family, const Slice& key, |
64 | 0 | const Slice& value) override { |
65 | 0 | return STATUS(NotSupported, "Not supported operation in read only mode."); |
66 | 0 | } |
67 | | using DBImpl::Delete; |
68 | | virtual Status Delete(const WriteOptions& options, |
69 | | ColumnFamilyHandle* column_family, |
70 | 0 | const Slice& key) override { |
71 | 0 | return STATUS(NotSupported, "Not supported operation in read only mode."); |
72 | 0 | } |
73 | | using DBImpl::SingleDelete; |
74 | | virtual Status SingleDelete(const WriteOptions& options, |
75 | | ColumnFamilyHandle* column_family, |
76 | 0 | const Slice& key) override { |
77 | 0 | return STATUS(NotSupported, "Not supported operation in read only mode."); |
78 | 0 | } |
79 | | virtual Status Write(const WriteOptions& options, |
80 | 0 | WriteBatch* updates) override { |
81 | 0 | return STATUS(NotSupported, "Not supported operation in read only mode."); |
82 | 0 | } |
83 | | using DBImpl::CompactRange; |
84 | | virtual Status CompactRange(const CompactRangeOptions& options, |
85 | | ColumnFamilyHandle* column_family, |
86 | 1 | const Slice* begin, const Slice* end) override { |
87 | 1 | return STATUS(NotSupported, "Not supported operation in read only mode."); |
88 | 1 | } |
89 | | |
90 | | using DBImpl::CompactFiles; |
91 | | virtual Status CompactFiles( |
92 | | const CompactionOptions& compact_options, |
93 | | ColumnFamilyHandle* column_family, |
94 | | const std::vector<std::string>& input_file_names, |
95 | 0 | const int output_level, const int output_path_id = -1) override { |
96 | 0 | return STATUS(NotSupported, "Not supported operation in read only mode."); |
97 | 0 | } |
98 | | |
99 | | #ifndef ROCKSDB_LITE |
100 | 0 | virtual Status DisableFileDeletions() override { |
101 | 0 | return STATUS(NotSupported, "Not supported operation in read only mode."); |
102 | 0 | } |
103 | | |
104 | 0 | virtual Status EnableFileDeletions(bool force) override { |
105 | 0 | return STATUS(NotSupported, "Not supported operation in read only mode."); |
106 | 0 | } |
107 | | virtual Status GetLiveFiles(std::vector<std::string>&, |
108 | | uint64_t* manifest_file_size, |
109 | 0 | bool flush_memtable = true) override { |
110 | 0 | return STATUS(NotSupported, "Not supported operation in read only mode."); |
111 | 0 | } |
112 | | #endif // ROCKSDB_LITE |
113 | | |
114 | | using DBImpl::Flush; |
115 | | virtual Status Flush(const FlushOptions& options, |
116 | 0 | ColumnFamilyHandle* column_family) override { |
117 | 0 | return STATUS(NotSupported, "Not supported operation in read only mode."); |
118 | 0 | } |
119 | | |
120 | | using DBImpl::SyncWAL; |
121 | 1 | virtual Status SyncWAL() override { |
122 | 1 | return STATUS(NotSupported, "Not supported operation in read only mode."); |
123 | 1 | } |
124 | | |
125 | | private: |
126 | | friend class DB; |
127 | | |
128 | | // No copying allowed |
129 | | DBImplReadOnly(const DBImplReadOnly&); |
130 | | void operator=(const DBImplReadOnly&); |
131 | | }; |
132 | | } // namespace rocksdb |
133 | | |
134 | | #endif // !ROCKSDB_LITE |
135 | | |
136 | | #endif // ROCKSDB_DB_DB_IMPL_READONLY_H |