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      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 
     17 package android.os;
     18 
     19 import java.util.ArrayList;
     20 import java.util.NoSuchElementException;
     21 import libcore.util.NativeAllocationRegistry;
     22 
     23 /** @hide */
     24 public abstract class HwBinder implements IHwBinder {
     25     private static final String TAG = "HwBinder";
     26 
     27     private static final NativeAllocationRegistry sNativeRegistry;
     28 
     29     public HwBinder() {
     30         native_setup();
     31 
     32         sNativeRegistry.registerNativeAllocation(
     33                 this,
     34                 mNativeContext);
     35     }
     36 
     37     @Override
     38     public final native void transact(
     39             int code, HwParcel request, HwParcel reply, int flags)
     40         throws RemoteException;
     41 
     42     public abstract void onTransact(
     43             int code, HwParcel request, HwParcel reply, int flags)
     44         throws RemoteException;
     45 
     46     public native final void registerService(String serviceName)
     47         throws RemoteException;
     48 
     49     public static native final IHwBinder getService(
     50             String iface,
     51             String serviceName)
     52         throws RemoteException, NoSuchElementException;
     53 
     54     public static native final void configureRpcThreadpool(
     55             long maxThreads, boolean callerWillJoin);
     56 
     57     public static native final void joinRpcThreadpool();
     58 
     59     // Returns address of the "freeFunction".
     60     private static native final long native_init();
     61 
     62     private native final void native_setup();
     63 
     64     static {
     65         long freeFunction = native_init();
     66 
     67         sNativeRegistry = new NativeAllocationRegistry(
     68                 HwBinder.class.getClassLoader(),
     69                 freeFunction,
     70                 128 /* size */);
     71     }
     72 
     73     private long mNativeContext;
     74 }
     75