1 /*
2  * Copyright (C) 2017 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 <android/hidl/base/1.0/IBase.h>
18 #include <hidl/HidlSupport.h>
19 
20 #include <map>
21 
22 namespace android {
23 namespace hardware {
24 
25 namespace details {
26 
27 using IBase = ::android::hidl::base::V1_0::IBase;
28 
29 // AdapterFactory(impl) -> adapter
30 using AdapterFactory = std::function<sp<IBase>(sp<IBase>)>;
31 // AdaptersFactory(package@interface)(impl) -> adapter
32 using AdaptersFactory = std::map<std::string, AdapterFactory>;
33 
34 int adapterMain(const std::string& package, int argc, char** argv, const AdaptersFactory& adapters);
35 
36 sp<IBase> adaptWithDefault(const sp<IBase>& something,
37                            const std::function<sp<IBase>()>& makeDefault);
38 
39 }  // namespace details
40 
41 template <typename... Adapters>
42 int adapterMain(const std::string& package, int argc, char** argv) {
43     return details::adapterMain(
44         package, argc, argv,
45         {{Adapters::Pure::descriptor, [](sp<::android::hidl::base::V1_0::IBase> base) {
46               return details::adaptWithDefault(
47                   base, [&] { return new Adapters(Adapters::Pure::castFrom(base)); });
48           }}...});
49 }
50 
51 }  // namespace hardware
52 }  // namespace android