1 /*
2 * Copyright (c) Huawei Technologies Co., Ltd. 2023. All rights reserved.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * 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
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "frame_maps_table.h"
17
18 namespace SysTuning {
19 namespace TraceStreamer {
20 enum class Index : int32_t { ID = 0, SRC_ROW, DST_ROW };
FrameMapsTable(const TraceDataCache *dataCache)21 FrameMapsTable::FrameMapsTable(const TraceDataCache *dataCache) : TableBase(dataCache)
22 {
23 tableColumn_.push_back(TableBase::ColumnInfo("id", "INTEGER"));
24 tableColumn_.push_back(TableBase::ColumnInfo("src_row", "INTEGER"));
25 tableColumn_.push_back(TableBase::ColumnInfo("dst_row", "INTEGER"));
26 tablePriKey_.push_back("id");
27 }
28
~FrameMapsTable()29 FrameMapsTable::~FrameMapsTable() {}
30
FilterByConstraint(FilterConstraints &mapfc, double &mapfilterCost, size_t maprowCount, uint32_t mapcurrenti)31 void FrameMapsTable::FilterByConstraint(FilterConstraints &mapfc,
32 double &mapfilterCost,
33 size_t maprowCount,
34 uint32_t mapcurrenti)
35 {
36 // To use the EstimateFilterCost function in the TableBase parent class function to calculate the i-value of each
37 // for loop
38 const auto &mapc = mapfc.GetConstraints()[mapcurrenti];
39 switch (static_cast<Index>(mapc.col)) {
40 case Index::ID: {
41 if (CanFilterId(mapc.op, maprowCount)) {
42 mapfc.UpdateConstraint(mapcurrenti, true);
43 mapfilterCost += 1; // id can position by 1 step
44 } else {
45 mapfilterCost += maprowCount; // scan all rows
46 }
47 break;
48 }
49 default: // other column
50 mapfilterCost += maprowCount; // scan all rows
51 break;
52 }
53 }
54
CreateCursor()55 std::unique_ptr<TableBase::Cursor> FrameMapsTable::CreateCursor()
56 {
57 return std::make_unique<Cursor>(dataCache_, this);
58 }
59
Cursor(const TraceDataCache *dataCache, TableBase *table)60 FrameMapsTable::Cursor::Cursor(const TraceDataCache *dataCache, TableBase *table)
61 : TableBase::Cursor(dataCache, table, static_cast<uint32_t>(dataCache->GetConstFrameMapsData().Size())),
62 frameMapsObj_(dataCache->GetConstFrameMapsData())
63 {
64 }
65
~Cursor()66 FrameMapsTable::Cursor::~Cursor() {}
67
Filter(const FilterConstraints &fc, sqlite3_value **argv)68 int32_t FrameMapsTable::Cursor::Filter(const FilterConstraints &fc, sqlite3_value **argv)
69 {
70 // reset indexMap_
71 indexMap_ = std::make_unique<IndexMap>(0, rowCount_);
72
73 if (rowCount_ <= 0) {
74 return SQLITE_OK;
75 }
76
77 auto frameMapsTabCs = fc.GetConstraints();
78 std::set<uint32_t> sId = {static_cast<uint32_t>(Index::ID)};
79 SwapIndexFront(frameMapsTabCs, sId);
80 for (size_t i = 0; i < frameMapsTabCs.size(); i++) {
81 const auto &c = frameMapsTabCs[i];
82 switch (static_cast<Index>(c.col)) {
83 case Index::ID:
84 FilterId(c.op, argv[c.idxInaConstraint]);
85 break;
86 case Index::SRC_ROW:
87 indexMap_->MixRange(c.op, static_cast<uint64_t>(sqlite3_value_int64(argv[c.idxInaConstraint])),
88 frameMapsObj_.SrcIndexs());
89 break;
90 case Index::DST_ROW:
91 indexMap_->MixRange(c.op, static_cast<uint64_t>(sqlite3_value_int(argv[c.idxInaConstraint])),
92 frameMapsObj_.DstIndexs());
93 break;
94 default:
95 break;
96 }
97 }
98
99 auto frameMapsTabOrderbys = fc.GetOrderBys();
100 for (auto i = frameMapsTabOrderbys.size(); i > 0;) {
101 i--;
102 switch (static_cast<Index>(frameMapsTabOrderbys[i].iColumn)) {
103 case Index::ID:
104 indexMap_->SortBy(frameMapsTabOrderbys[i].desc);
105 break;
106 default:
107 break;
108 }
109 }
110
111 return SQLITE_OK;
112 }
113
Column(int32_t column) const114 int32_t FrameMapsTable::Cursor::Column(int32_t column) const
115 {
116 switch (static_cast<Index>(column)) {
117 case Index::ID:
118 sqlite3_result_int64(context_, static_cast<int32_t>(frameMapsObj_.IdsData()[CurrentRow()]));
119 break;
120 case Index::SRC_ROW:
121 sqlite3_result_int64(context_, static_cast<int64_t>(frameMapsObj_.SrcIndexs()[CurrentRow()]));
122 break;
123 case Index::DST_ROW:
124 sqlite3_result_int64(context_, static_cast<int64_t>(frameMapsObj_.DstIndexs()[CurrentRow()]));
125 break;
126 default:
127 TS_LOGF("Unregistered column : %d", column);
128 break;
129 }
130 return SQLITE_OK;
131 }
GetOrbyes(FilterConstraints &mapfc, EstimatedIndexInfo &mapei)132 void FrameMapsTable::GetOrbyes(FilterConstraints &mapfc, EstimatedIndexInfo &mapei)
133 {
134 auto maporderbys = mapfc.GetOrderBys();
135 for (auto i = 0; i < maporderbys.size(); i++) {
136 switch (static_cast<Index>(maporderbys[i].iColumn)) {
137 case Index::ID:
138 break;
139 default: // other columns can be sorted by SQLite
140 mapei.isOrdered = false;
141 break;
142 }
143 }
144 }
145 } // namespace TraceStreamer
146 } // namespace SysTuning
147