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      1 /*
      2  * Copyright (C) 2013 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 #define LOG_TAG "IBatteryPropertiesRegistrar"
     18 //#define LOG_NDEBUG 0
     19 #include <utils/Log.h>
     20 
     21 #include <batteryservice/IBatteryPropertiesListener.h>
     22 #include <batteryservice/IBatteryPropertiesRegistrar.h>
     23 #include <stdint.h>
     24 #include <sys/types.h>
     25 #include <binder/Parcel.h>
     26 
     27 namespace android {
     28 
     29 class BpBatteryPropertiesRegistrar : public BpInterface<IBatteryPropertiesRegistrar> {
     30 public:
     31     BpBatteryPropertiesRegistrar(const sp<IBinder>& impl)
     32         : BpInterface<IBatteryPropertiesRegistrar>(impl) {}
     33 
     34         void registerListener(const sp<IBatteryPropertiesListener>& listener) {
     35             Parcel data;
     36             data.writeInterfaceToken(IBatteryPropertiesRegistrar::getInterfaceDescriptor());
     37             data.writeStrongBinder(listener->asBinder());
     38             remote()->transact(REGISTER_LISTENER, data, NULL);
     39         }
     40 
     41         void unregisterListener(const sp<IBatteryPropertiesListener>& listener) {
     42             Parcel data;
     43             data.writeInterfaceToken(IBatteryPropertiesRegistrar::getInterfaceDescriptor());
     44             data.writeStrongBinder(listener->asBinder());
     45             remote()->transact(UNREGISTER_LISTENER, data, NULL);
     46         }
     47 };
     48 
     49 IMPLEMENT_META_INTERFACE(BatteryPropertiesRegistrar, "android.os.IBatteryPropertiesRegistrar");
     50 
     51 status_t BnBatteryPropertiesRegistrar::onTransact(uint32_t code,
     52                                                   const Parcel& data,
     53                                                   Parcel* reply,
     54                                                   uint32_t flags)
     55 {
     56     switch(code) {
     57         case REGISTER_LISTENER: {
     58             CHECK_INTERFACE(IBatteryPropertiesRegistrar, data, reply);
     59             sp<IBatteryPropertiesListener> listener =
     60                 interface_cast<IBatteryPropertiesListener>(data.readStrongBinder());
     61             registerListener(listener);
     62             return OK;
     63         }
     64 
     65         case UNREGISTER_LISTENER: {
     66             CHECK_INTERFACE(IBatteryPropertiesRegistrar, data, reply);
     67             sp<IBatteryPropertiesListener> listener =
     68                 interface_cast<IBatteryPropertiesListener>(data.readStrongBinder());
     69             unregisterListener(listener);
     70             return OK;
     71         }
     72     }
     73     return BBinder::onTransact(code, data, reply, flags);
     74 };
     75 
     76 // ----------------------------------------------------------------------------
     77 
     78 }; // namespace android
     79