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 "measure_table.h"
17#include <cmath>
18
19namespace SysTuning {
20namespace TraceStreamer {
21enum class Index : int32_t { TYPE = 0, TS, DUR, VALUE, FILTER_ID };
22MeasureTable::MeasureTable(const TraceDataCache *dataCache) : TableBase(dataCache)
23{
24    tableColumn_.push_back(TableBase::ColumnInfo("type", "TEXT"));
25    tableColumn_.push_back(TableBase::ColumnInfo("ts", "INTEGER"));
26    tableColumn_.push_back(TableBase::ColumnInfo("dur", "INTEGER"));
27    tableColumn_.push_back(TableBase::ColumnInfo("value", "INTEGER"));
28    tableColumn_.push_back(TableBase::ColumnInfo("filter_id", "INTEGER"));
29    tablePriKey_.push_back("ts");
30    tablePriKey_.push_back("filter_id");
31}
32
33MeasureTable::~MeasureTable() {}
34
35std::unique_ptr<TableBase::Cursor> MeasureTable::CreateCursor()
36{
37    return std::make_unique<Cursor>(dataCache_, this);
38}
39
40MeasureTable::Cursor::Cursor(const TraceDataCache *dataCache, TableBase *table)
41    : TableBase::Cursor(dataCache,
42                        table,
43                        static_cast<uint32_t>(table->name_ == "measure"
44                                                  ? dataCache->GetConstMeasureData().Size()
45                                                  : (table->name_ == "process_measure"
46                                                         ? dataCache->GetConstProcessMeasureData().Size()
47                                                         : (table->name_ == "sys_mem_measure"
48                                                                ? dataCache->GetConstSysMemMeasureData().Size()
49                                                                : dataCache->GetConstXpowerMeasureData().Size())))),
50      measureObj(table->name_ == "measure"
51                     ? dataCache->GetConstMeasureData()
52                     : (table->name_ == "process_measure"
53                            ? dataCache->GetConstProcessMeasureData()
54                            : (table->name_ == "sys_mem_measure" ? dataCache->GetConstSysMemMeasureData()
55                                                                 : dataCache->GetConstXpowerMeasureData())))
56{
57}
58
59MeasureTable::Cursor::~Cursor() {}
60
61void MeasureTable::FilterByConstraint(FilterConstraints &measurefc,
62                                      double &measurefilterCost,
63                                      size_t measurerowCount,
64                                      uint32_t measurecurrenti)
65{
66    // To use the EstimateFilterCost function in the TableBase parent class function to calculate the i-value of each
67    // for loop
68    const auto &measurec = measurefc.GetConstraints()[measurecurrenti];
69    switch (static_cast<Index>(measurec.col)) {
70        case Index::TS: {
71            auto measureoldRowCount = measurerowCount;
72            if (CanFilterSorted(measurec.op, measurerowCount)) {
73                measurefc.UpdateConstraint(measurecurrenti, true);
74                measurefilterCost += log2(measureoldRowCount); // binary search
75            } else {
76                measurefilterCost += measureoldRowCount;
77            }
78            break;
79        }
80        default:                                  // other column
81            measurefilterCost += measurerowCount; // scan all rows
82            break;
83    }
84}
85
86int32_t MeasureTable::Cursor::Filter(const FilterConstraints &fc, sqlite3_value **argv)
87{
88    // reset
89    indexMap_ = std::make_unique<IndexMap>(0, rowCount_);
90
91    if (rowCount_ <= 0) {
92        return SQLITE_OK;
93    }
94    auto measureTabCs = fc.GetConstraints();
95    std::set<uint32_t> sId = {static_cast<uint32_t>(Index::TS)};
96    SwapIndexFront(measureTabCs, sId);
97    for (size_t i = 0; i < measureTabCs.size(); i++) {
98        const auto &c = measureTabCs[i];
99        switch (static_cast<Index>(c.col)) {
100            case Index::TS:
101                FilterTS(c.op, argv[c.idxInaConstraint], measureObj.TimeStampData());
102                break;
103            case Index::FILTER_ID:
104                indexMap_->MixRange(c.op, static_cast<uint32_t>(sqlite3_value_int(argv[c.idxInaConstraint])),
105                                    measureObj.FilterIdData());
106                break;
107            default:
108                break;
109        }
110    }
111
112    auto orderbys = fc.GetOrderBys();
113    for (auto i = orderbys.size(); i > 0;) {
114        i--;
115        switch (static_cast<Index>(orderbys[i].iColumn)) {
116            case Index::TS:
117                indexMap_->SortBy(orderbys[i].desc);
118                break;
119            case Index::FILTER_ID:
120                indexMap_->SortBy(orderbys[i].desc);
121                break;
122            default:
123                break;
124        }
125    }
126
127    return SQLITE_OK;
128}
129
130int32_t MeasureTable::Cursor::Column(int32_t column) const
131{
132    switch (static_cast<Index>(column)) {
133        case Index::TYPE:
134            sqlite3_result_text(context_, "measure", STR_DEFAULT_LEN, nullptr);
135            break;
136        case Index::TS:
137            sqlite3_result_int64(context_, static_cast<int64_t>(measureObj.TimeStampData()[CurrentRow()]));
138            break;
139        case Index::DUR:
140            if (measureObj.DursData()[CurrentRow()] != INVALID_UINT64) {
141                sqlite3_result_int64(context_, static_cast<int64_t>(measureObj.DursData()[CurrentRow()]));
142            }
143            break;
144        case Index::VALUE:
145            sqlite3_result_int64(context_, static_cast<int64_t>(measureObj.ValuesData()[CurrentRow()]));
146            break;
147        case Index::FILTER_ID:
148            sqlite3_result_int64(context_, static_cast<int32_t>(measureObj.FilterIdData()[CurrentRow()]));
149            break;
150        default:
151            TS_LOGF("Unregistered column : %d", column);
152            break;
153    }
154    return SQLITE_OK;
155}
156
157void MeasureTable::GetOrbyes(FilterConstraints &measurefc, EstimatedIndexInfo &measureei)
158{
159    auto measureorderbys = measurefc.GetOrderBys();
160    for (auto i = 0; i < measureorderbys.size(); i++) {
161        switch (static_cast<Index>(measureorderbys[i].iColumn)) {
162            case Index::TS:
163                break;
164            default: // other columns can be sorted by SQLite
165                measureei.isOrdered = false;
166                break;
167        }
168    }
169}
170} // namespace TraceStreamer
171} // namespace SysTuning
172