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 #pragma once
18 
19 #include "CloseHandleWrapper.h"
20 
21 #include <android/hardware/automotive/can/1.0/ICanBus.h>
22 #include <android/hidl/manager/1.0/IServiceNotification.h>
23 #include <utils/Mutex.h>
24 #include <VehicleBus.h>
25 
26 namespace android {
27 namespace hardware {
28 namespace automotive {
29 namespace can {
30 namespace V1_0 {
31 namespace utils {
32 
33 class CanClient : public ::aidl::android::hardware::automotive::vehicle::VehicleBus,
34                   public hidl::manager::V1_0::IServiceNotification,
35                   private ICanErrorListener,
36                   private ICanMessageListener,
37                   private hidl_death_recipient {
38 public:
39     virtual ~CanClient();
40 
41     virtual ::ndk::ScopedAStatus start();
42 
43 protected:
44     CanClient(const std::string& busName);
45 
46     virtual void onReady(const sp<ICanBus>& canBus);
47 
48 private:
49     const std::string mBusName;
50 
51     CloseHandleWrapper mListenerCloseHandle;
52     CloseHandleWrapper mErrorCloseHandle;
53 
54     mutable std::mutex mCanBusGuard;
55     sp<ICanBus> mCanBus GUARDED_BY(mCanBusGuard);
56 
57     Return<void> onRegistration(const hidl_string&, const hidl_string& name, bool) override;
58     void serviceDied(uint64_t cookie, const wp<hidl::base::V1_0::IBase>& who) override;
59     Return<void> onError(ErrorEvent error, bool isFatal) override;
60     bool close();
61 
62     DISALLOW_COPY_AND_ASSIGN(CanClient);
63 };
64 
65 }  // namespace utils
66 }  // namespace V1_0
67 }  // namespace can
68 }  // namespace automotive
69 }  // namespace hardware
70 }  // namespace android
71