1 /*
2 * Copyright (C) 2022 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 <mediautils/MethodStatistics.h>
18
19 namespace android::mediautils {
20
21 // Repository for MethodStatistics Objects
22
23 // It's important to have the HAL class name defined with suffix "Hidl/Aidl" because
24 // TimerThread::isRequestFromHal use this string to match binder call to/from hal.
25 std::shared_ptr<std::vector<std::string>>
getStatisticsClassesForModule(std::string_view moduleName)26 getStatisticsClassesForModule(std::string_view moduleName) {
27 static const std::map<std::string, std::shared_ptr<std::vector<std::string>>,
28 std::less<> /* transparent comparator */> m {
29 {
30 METHOD_STATISTICS_MODULE_NAME_AUDIO_HIDL,
31 std::shared_ptr<std::vector<std::string>>(
32 new std::vector<std::string>{
33 "DeviceHalHidl",
34 "EffectHalHidl",
35 "StreamInHalHidl",
36 "StreamOutHalHidl",
37 })
38 },
39 {
40 METHOD_STATISTICS_MODULE_NAME_AUDIO_AIDL,
41 std::shared_ptr<std::vector<std::string>>(
42 new std::vector<std::string>{
43 "DeviceHalAidl",
44 "EffectHalAidl",
45 "StreamHalAidl",
46 })
47 },
48 };
49 auto it = m.find(moduleName);
50 if (it == m.end()) return {};
51 return it->second;
52 }
53
addClassesToMap(const std::shared_ptr<std::vector<std::string>> & classNames,std::map<std::string,std::shared_ptr<MethodStatistics<std::string>>,std::less<>> & map)54 static void addClassesToMap(const std::shared_ptr<std::vector<std::string>> &classNames,
55 std::map<std::string, std::shared_ptr<MethodStatistics<std::string>>,
56 std::less<> /* transparent comparator */> &map) {
57 if (classNames) {
58 for (const auto& className : *classNames) {
59 map.emplace(className, std::make_shared<MethodStatistics<std::string>>());
60 }
61 }
62 }
63
64 // singleton statistics for DeviceHalHidl StreamOutHalHidl StreamInHalHidl
65 std::shared_ptr<MethodStatistics<std::string>>
getStatisticsForClass(std::string_view className)66 getStatisticsForClass(std::string_view className) {
67 static const std::map<std::string, std::shared_ptr<MethodStatistics<std::string>>,
68 std::less<> /* transparent comparator */> m =
69 // copy elided initialization of map m.
70 [](){
71 std::map<std::string, std::shared_ptr<MethodStatistics<std::string>>, std::less<>> m;
72 addClassesToMap(
73 getStatisticsClassesForModule(METHOD_STATISTICS_MODULE_NAME_AUDIO_HIDL),
74 m);
75 addClassesToMap(
76 getStatisticsClassesForModule(METHOD_STATISTICS_MODULE_NAME_AUDIO_AIDL),
77 m);
78 return m;
79 }();
80
81 auto it = m.find(className);
82 if (it == m.end()) return {};
83 return it->second;
84 }
85
86 } // android::mediautils
87