1 /*
2  * Copyright (C) 2015 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 SIMPLE_PERF_EVENT_H_
18 #define SIMPLE_PERF_EVENT_H_
19 
20 #include <stdint.h>
21 #include <string>
22 #include <vector>
23 
24 // EventType represents one type of event, like cpu_cycle_event, cache_misses_event.
25 // The user knows one event type by its name, and the kernel knows one event type by its
26 // (type, config) pair. EventType connects the two representations, and tells the user if
27 // the event type is supported by the kernel.
28 
29 struct EventType {
30   bool IsSupportedByKernel() const;
31 
32   const char* name;
33   uint32_t type;
34   uint64_t config;
35 };
36 
37 class EventTypeFactory {
38  public:
39   static const std::vector<const EventType>& GetAllEventTypes();
40   static const EventType* FindEventTypeByName(const std::string& name,
41                                               bool report_unsupported_type = true);
42   static const EventType* FindEventTypeByConfig(uint32_t type, uint64_t config);
43 };
44 
45 #endif  // SIMPLE_PERF_EVENT_H_
46