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
32namespace android {
33// ----------------------------------------------------------------------------
34
35class 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 */
42class VehicleMonitorMessageHandler : public MessageHandler {
43    enum {
44        COLLECT_DATA = 0,
45    };
46
47public:
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
55private:
56    void handleMessage(const Message& message);
57    void doHandleCollectData();
58
59private:
60    mutable std::mutex mLock;
61    const sp<Looper> mLooper;
62    ProcessMonitor mProcessMonitor;
63    VehicleMonitorService& mService;
64    int64_t mLastDispatchTime;
65};
66
67// ----------------------------------------------------------------------------
68class VehicleMonitorService :
69    public BinderService<VehicleMonitorService>,
70    public BnVehicleMonitor,
71    public IBinder::DeathRecipient {
72public:
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
87private:
88    // RefBase
89    virtual void onFirstRef();
90private:
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