1 /* 2 * Copyright (C) 2016 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 #ifndef CAR_VEHICLE_MONITOR_SERVICE_H_ 17 #define CAR_VEHICLE_MONITOR_SERVICE_H_ 18 19 #include <mutex> 20 #include <inttypes.h> 21 #include <cutils/compiler.h> 22 23 #include <binder/BinderService.h> 24 #include <binder/IBinder.h> 25 #include <utils/String8.h> 26 27 #include <ProcessMonitor.h> 28 #include <IVehicleMonitor.h> 29 #include <IVehicleMonitorListener.h> 30 #include <HandlerThread.h> 31 32 namespace android { 33 // ---------------------------------------------------------------------------- 34 35 class VehicleMonitorService; 36 37 /** 38 * MessageHandler to handle periodic data processing. 39 * Init / release is handled in the handler thread to allow upper layer to 40 * allocate resource for the thread. 41 */ 42 class VehicleMonitorMessageHandler : public MessageHandler { 43 enum { 44 COLLECT_DATA = 0, 45 }; 46 47 public: 48 // not passing VMS as sp as this is held by VMS always. 49 VehicleMonitorMessageHandler( 50 const sp<Looper>& mLooper, VehicleMonitorService& service); 51 virtual ~VehicleMonitorMessageHandler(); 52 53 void dump(String8& msg); 54 55 private: 56 void handleMessage(const Message& message); 57 void doHandleCollectData(); 58 59 private: 60 mutable std::mutex mLock; 61 const sp<Looper> mLooper; 62 ProcessMonitor mProcessMonitor; 63 VehicleMonitorService& mService; 64 int64_t mLastDispatchTime; 65 }; 66 67 // ---------------------------------------------------------------------------- 68 class VehicleMonitorService : 69 public BinderService<VehicleMonitorService>, 70 public BnVehicleMonitor, 71 public IBinder::DeathRecipient { 72 public: 73 static const char* getServiceName() ANDROID_API { 74 return IVehicleMonitor::SERVICE_NAME; 75 }; 76 77 VehicleMonitorService(); 78 ~VehicleMonitorService(); 79 virtual status_t dump(int fd, const Vector<String16>& args); 80 void release(); 81 virtual void binderDied(const wp<IBinder>& who); 82 virtual status_t setAppPriority( 83 uint32_t pid, uint32_t uid, vehicle_app_priority priority); 84 virtual status_t setMonitorListener( 85 const sp<IVehicleMonitorListener> &listener); 86 87 private: 88 // RefBase 89 virtual void onFirstRef(); 90 private: 91 static VehicleMonitorService* sInstance; 92 sp<HandlerThread> mHandlerThread; 93 sp<VehicleMonitorMessageHandler> mHandler; 94 mutable std::mutex mLock; 95 }; 96 97 } 98 99 #endif /* CAR_VEHICLE_MONITOR_SERVICE_H_ */ 100