/Users/deen/code/yugabyte-db/src/yb/common/row_mark.cc
Line | Count | Source (jump to first uncovered line) |
1 | | // |
2 | | // Copyright (c) YugaByte, Inc. |
3 | | // |
4 | | // Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
5 | | // in compliance with the License. You may obtain a copy of the License at |
6 | | // |
7 | | // http://www.apache.org/licenses/LICENSE-2.0 |
8 | | // |
9 | | // Unless required by applicable law or agreed to in writing, software distributed under the License |
10 | | // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
11 | | // or implied. See the License for the specific language governing permissions and limitations |
12 | | // under the License. |
13 | | // |
14 | | |
15 | | #include "yb/common/row_mark.h" |
16 | | |
17 | | #include <glog/logging.h> |
18 | | |
19 | | #include "yb/common/common.pb.h" |
20 | | #include "yb/gutil/macros.h" |
21 | | |
22 | | namespace yb { |
23 | | |
24 | 7.78k | RowMarkType GetStrongestRowMarkType(std::initializer_list<RowMarkType> row_mark_types) { |
25 | 7.78k | RowMarkType strongest_row_mark_type = RowMarkType::ROW_MARK_ABSENT; |
26 | 15.5k | for (RowMarkType row_mark_type : row_mark_types) { |
27 | 15.5k | strongest_row_mark_type = std::min(row_mark_type, strongest_row_mark_type); |
28 | 15.5k | } |
29 | 7.78k | return strongest_row_mark_type; |
30 | 7.78k | } |
31 | | |
32 | 42.0M | bool IsValidRowMarkType(RowMarkType row_mark_type) { |
33 | 42.0M | switch (row_mark_type) { |
34 | 101k | case RowMarkType::ROW_MARK_EXCLUSIVE: FALLTHROUGH_INTENDED; |
35 | 101k | case RowMarkType::ROW_MARK_NOKEYEXCLUSIVE: FALLTHROUGH_INTENDED; |
36 | 119k | case RowMarkType::ROW_MARK_SHARE: FALLTHROUGH_INTENDED; |
37 | 357k | case RowMarkType::ROW_MARK_KEYSHARE: |
38 | 357k | return true; |
39 | 41.7M | default: |
40 | 41.7M | return false; |
41 | 42.0M | } |
42 | 42.0M | } |
43 | | |
44 | 1.89M | bool RowMarkNeedsHigherPriority(RowMarkType row_mark_type) { |
45 | | /* |
46 | | * Currently, using higher priority for all supported row marks except the key share lock. |
47 | | * This is because key share locks are used for foreign keys and we don't want higher priority |
48 | | * there. |
49 | | */ |
50 | 1.89M | return IsValidRowMarkType(row_mark_type) && |
51 | 7.77k | row_mark_type != RowMarkType::ROW_MARK_KEYSHARE; |
52 | 1.89M | } |
53 | | |
54 | | } // namespace yb |