1 /*
2 * Copyright (C) 2018 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/instants_table.h"
18
19 #include <string>
20
21 #include "src/trace_processor/storage_columns.h"
22
23 namespace perfetto {
24 namespace trace_processor {
25
InstantsTable(sqlite3 *,const TraceStorage * storage)26 InstantsTable::InstantsTable(sqlite3*, const TraceStorage* storage)
27 : storage_(storage) {}
28
RegisterTable(sqlite3 * db,const TraceStorage * storage)29 void InstantsTable::RegisterTable(sqlite3* db, const TraceStorage* storage) {
30 Table::Register<InstantsTable>(db, storage, "instants");
31 }
32
CreateStorageSchema()33 StorageSchema InstantsTable::CreateStorageSchema() {
34 const auto& instants = storage_->instants();
35 return StorageSchema::Builder()
36 .AddGenericNumericColumn("id", RowIdAccessor(TableId::kInstants))
37 .AddOrderedNumericColumn("ts", &instants.timestamps())
38 .AddStringColumn("name", &instants.name_ids(), &storage_->string_pool())
39 .AddNumericColumn("value", &instants.values())
40 .AddNumericColumn("ref", &instants.refs())
41 .AddStringColumn("ref_type", &instants.types(), &GetRefTypeStringMap())
42 .AddNumericColumn("arg_set_id", &instants.arg_set_ids())
43 .Build({"name", "ts", "ref"});
44 }
45
RowCount()46 uint32_t InstantsTable::RowCount() {
47 return static_cast<uint32_t>(storage_->instants().instant_count());
48 }
49
BestIndex(const QueryConstraints & qc,BestIndexInfo * info)50 int InstantsTable::BestIndex(const QueryConstraints& qc, BestIndexInfo* info) {
51 info->estimated_cost =
52 static_cast<uint32_t>(storage_->instants().instant_count());
53
54 // Only the string columns are handled by SQLite
55 info->order_by_consumed = true;
56 size_t name_index = schema().ColumnIndexFromName("name");
57 size_t ref_type_index = schema().ColumnIndexFromName("ref_type");
58 for (size_t i = 0; i < qc.constraints().size(); i++) {
59 info->omit[i] =
60 qc.constraints()[i].iColumn != static_cast<int>(name_index) &&
61 qc.constraints()[i].iColumn != static_cast<int>(ref_type_index);
62 }
63
64 return SQLITE_OK;
65 }
66 } // namespace trace_processor
67 } // namespace perfetto
68