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Commit c4a930d1 authored by Mathias Agopian's avatar Mathias Agopian
Browse files

Report sensor events to BatteryStats service 

Change-Id: I9b83aa709887aa658bc474391573f2d45b6c4eb2
parent 3560fb24

services/sensorservice/SensorService.cpp

+42 −22
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ 
#include <utils/Errors.h>

#include <utils/RefBase.h>

#include <utils/Singleton.h>

#include <utils/String16.h>



#include <binder/BinderService.h>

#include <binder/IServiceManager.h>
@@ -38,46 +39,65 @@ 
namespace android {

// ---------------------------------------------------------------------------



/*

 * TODO:

 * - send sensor info to battery service

 *



static final int TRANSACTION_noteStartSensor = (android.os.IBinder.FIRST_CALL_TRANSACTION + 3);

static final int TRANSACTION_noteStopSensor = (android.os.IBinder.FIRST_CALL_TRANSACTION + 4);



    _data.writeInterfaceToken(DESCRIPTOR);

    _data.writeInt(uid);

    _data.writeInt(sensor);

    mRemote.transact(Stub.TRANSACTION_noteStartSensor, _data, _reply, 0);

    _reply.readException();

 *

 */



// ---------------------------------------------------------------------------



class BatteryService : public Singleton<BatteryService> {

    static const int TRANSACTION_noteStartSensor = IBinder::FIRST_CALL_TRANSACTION + 3;

    static const int TRANSACTION_noteStopSensor = IBinder::FIRST_CALL_TRANSACTION + 4;

    static const String16 DESCRIPTOR;



    friend class Singleton<BatteryService>;

    sp<IBinder> mBatteryStatService;



    BatteryService() {

        const sp<IServiceManager> sm(defaultServiceManager());

        if (sm != NULL) {

            const String16 name("batteryinfo");

        //getService(name, &mBatteryStatService);

            mBatteryStatService = sm->getService(name);

        }

    }



    status_t noteStartSensor(int uid, int handle) {

        Parcel data, reply;

        data.writeInterfaceToken(DESCRIPTOR);

        data.writeInt32(uid);

        data.writeInt32(handle);

        status_t err = mBatteryStatService->transact(

                TRANSACTION_noteStartSensor, data, &reply, 0);

        err = reply.readExceptionCode();

        return err;

    }



    status_t noteStopSensor(int uid, int handle) {

        Parcel data, reply;

        data.writeInterfaceToken(DESCRIPTOR);

        data.writeInt32(uid);

        data.writeInt32(handle);

        status_t err = mBatteryStatService->transact(

                TRANSACTION_noteStopSensor, data, &reply, 0);

        err = reply.readExceptionCode();

        return err;

    }



public:

    void enableSensor(int handle) {

        if (mBatteryStatService != 0) {

            int uid = IPCThreadState::self()->getCallingUid();

            //mBatteryStatService->noteStartSensor(uid, handle);

            int64_t identity = IPCThreadState::self()->clearCallingIdentity();

            noteStartSensor(uid, handle);

            IPCThreadState::self()->restoreCallingIdentity(identity);

        }

    }

    void disableSensor(int handle) {

        if (mBatteryStatService != 0) {

            int uid = IPCThreadState::self()->getCallingUid();

            //mBatteryStatService->noteStopSensor(uid, handle);

            int64_t identity = IPCThreadState::self()->clearCallingIdentity();

            noteStopSensor(uid, handle);

            IPCThreadState::self()->restoreCallingIdentity(identity);

        }

    }

};



const String16 BatteryService::DESCRIPTOR("com.android.internal.app.IBatteryStats");



ANDROID_SINGLETON_STATIC_INSTANCE(BatteryService)



// ---------------------------------------------------------------------------