1 /*
2  * Copyright (C) 2019 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 #ifndef SRC_TRACE_PROCESSOR_COUNTER_DEFINITIONS_TABLE_H_
18 #define SRC_TRACE_PROCESSOR_COUNTER_DEFINITIONS_TABLE_H_
19 
20 #include "src/trace_processor/storage_table.h"
21 #include "src/trace_processor/trace_storage.h"
22 
23 namespace perfetto {
24 namespace trace_processor {
25 
26 class CounterDefinitionsTable : public StorageTable {
27  public:
28   static void RegisterTable(sqlite3* db, const TraceStorage* storage);
29 
30   CounterDefinitionsTable(sqlite3*, const TraceStorage*);
31 
32   // StorageTable implementation.
33   StorageSchema CreateStorageSchema() override;
34   uint32_t RowCount() override;
35   int BestIndex(const QueryConstraints&, BestIndexInfo*) override;
36 
37  private:
38   uint32_t EstimateCost(const QueryConstraints&);
39 
40   const TraceStorage* const storage_;
41 };
42 
43 }  // namespace trace_processor
44 }  // namespace perfetto
45 
46 #endif  // SRC_TRACE_PROCESSOR_COUNTER_DEFINITIONS_TABLE_H_
47