1 /*
2  * Copyright (C) 2021 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 // This is a sample reader client for ICarTelemetryInternal.
18 // TODO(b/186017953): remove this client when CarTelemetryService is implemented.
19 //
20 // adb remount  # make sure run "adb disable-verity" before remounting
21 // adb push $ANDROID_PRODUCT_OUT/system/bin/android.automotive.telemetryd-sampleinternalclient
22 // /system/bin/
23 //
24 // adb shell /system/bin/android.automotive.telemetryd-sampleinternalclient
25 
26 #define LOG_TAG "cartelemetryd_sampleint"
27 
28 #include <aidl/android/automotive/telemetry/internal/BnCarDataListener.h>
29 #include <aidl/android/automotive/telemetry/internal/CarDataInternal.h>
30 #include <aidl/android/automotive/telemetry/internal/ICarTelemetryInternal.h>
31 #include <android-base/logging.h>
32 #include <android-base/stringprintf.h>
33 #include <android/binder_manager.h>
34 #include <android/binder_process.h>
35 
36 using ::aidl::android::automotive::telemetry::internal::BnCarDataListener;
37 using ::aidl::android::automotive::telemetry::internal::CarDataInternal;
38 using ::aidl::android::automotive::telemetry::internal::ICarDataListener;
39 using ::aidl::android::automotive::telemetry::internal::ICarTelemetryInternal;
40 using ::android::base::StringPrintf;
41 
42 class CarDataListenerImpl : public BnCarDataListener {
43 public:
44     ::ndk::ScopedAStatus onCarDataReceived(
45             const std::vector<CarDataInternal>& in_dataList) override;
46 };
47 
onCarDataReceived(const std::vector<CarDataInternal> & dataList)48 ::ndk::ScopedAStatus CarDataListenerImpl::onCarDataReceived(
49         const std::vector<CarDataInternal>& dataList) {
50     LOG(INFO) << "Received data size = " << dataList.size();
51     for (const auto data : dataList) {
52         LOG(INFO) << "data.id = " << data.id;
53     }
54     return ::ndk::ScopedAStatus::ok();
55 }
56 
main(int argc,char * argv[])57 int main(int argc, char* argv[]) {
58     // The name of the service is described in
59     // https://source.android.com/devices/architecture/aidl/aidl-hals#instance-names
60     const std::string instance = StringPrintf("%s/default", ICarTelemetryInternal::descriptor);
61     LOG(INFO) << "Obtaining: " << instance;
62     std::shared_ptr<ICarTelemetryInternal> service = ICarTelemetryInternal::fromBinder(
63             ndk::SpAIBinder(AServiceManager_getService(instance.c_str())));
64     if (!service) {
65         LOG(FATAL) << "ICarTelemetryInternal service not found, may be still initializing?";
66     }
67 
68     LOG(INFO) << "Setting the listener";
69     std::shared_ptr<CarDataListenerImpl> listener = ndk::SharedRefBase::make<CarDataListenerImpl>();
70     auto status = service->setListener(listener);
71     if (!status.isOk()) {
72         LOG(FATAL) << "Failed to set the listener";
73     }
74 
75     ::ABinderProcess_startThreadPool();
76     ::ABinderProcess_joinThreadPool();
77     return 1;  // not reachable
78 }
79