1 /*
2 * Copyright (C) 9 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "src/trace_processor/counter_values_table.h"
18
19 namespace perfetto {
20 namespace trace_processor {
21
CounterValuesTable(sqlite3 *,const TraceStorage * storage)22 CounterValuesTable::CounterValuesTable(sqlite3*, const TraceStorage* storage)
23 : storage_(storage) {}
24
RegisterTable(sqlite3 * db,const TraceStorage * storage)25 void CounterValuesTable::RegisterTable(sqlite3* db,
26 const TraceStorage* storage) {
27 Table::Register<CounterValuesTable>(db, storage, "counter_values");
28 }
29
CreateStorageSchema()30 StorageSchema CounterValuesTable::CreateStorageSchema() {
31 const auto& cs = storage_->counter_values();
32 return StorageSchema::Builder()
33 .AddGenericNumericColumn("id", RowIdAccessor(TableId::kCounterValues))
34 .AddNumericColumn("counter_id", &cs.counter_ids(),
35 &cs.rows_for_counter_id())
36 .AddOrderedNumericColumn("ts", &cs.timestamps())
37 .AddNumericColumn("value", &cs.values())
38 .AddNumericColumn("arg_set_id", &cs.arg_set_ids())
39 .Build({"id"});
40 }
41
RowCount()42 uint32_t CounterValuesTable::RowCount() {
43 return storage_->counter_values().size();
44 }
45
BestIndex(const QueryConstraints & qc,BestIndexInfo * info)46 int CounterValuesTable::BestIndex(const QueryConstraints& qc,
47 BestIndexInfo* info) {
48 info->estimated_cost = EstimateCost(qc);
49
50 info->order_by_consumed = true;
51 for (size_t i = 0; i < qc.constraints().size(); i++) {
52 info->omit[i] = true;
53 }
54
55 return SQLITE_OK;
56 }
57
EstimateCost(const QueryConstraints & qc)58 uint32_t CounterValuesTable::EstimateCost(const QueryConstraints& qc) {
59 if (HasEqConstraint(qc, "counter_id"))
60 return RowCount() / 100;
61 return RowCount();
62 }
63
64 } // namespace trace_processor
65 } // namespace perfetto
66