1 /*
2 * Copyright (C) 2015 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 "ResultReceiver"
18
19 #include <binder/IResultReceiver.h>
20
21 #include <binder/Parcel.h>
22 #include <utils/String8.h>
23
24 namespace android {
25
26 // ----------------------------------------------------------------------
27
28 class BpResultReceiver : public BpInterface<IResultReceiver>
29 {
30 public:
BpResultReceiver(const sp<IBinder> & impl)31 explicit BpResultReceiver(const sp<IBinder>& impl)
32 : BpInterface<IResultReceiver>(impl)
33 {
34 }
35
send(int32_t resultCode)36 virtual void send(int32_t resultCode) {
37 Parcel data;
38 data.writeInterfaceToken(IResultReceiver::getInterfaceDescriptor());
39 data.writeInt32(resultCode);
40 remote()->transact(OP_SEND, data, nullptr, IBinder::FLAG_ONEWAY);
41 }
42 };
43
44 IMPLEMENT_META_INTERFACE(ResultReceiver, "com.android.internal.os.IResultReceiver")
45
46 // ----------------------------------------------------------------------
47
48 // NOLINTNEXTLINE(google-default-arguments)
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)49 status_t BnResultReceiver::onTransact(
50 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
51 {
52 switch(code) {
53 case OP_SEND: {
54 CHECK_INTERFACE(IResultReceiver, data, reply);
55 int32_t resultCode = data.readInt32();
56 send(resultCode);
57 if (reply != nullptr) {
58 reply->writeNoException();
59 }
60 return NO_ERROR;
61 } break;
62 default:
63 return BBinder::onTransact(code, data, reply, flags);
64 }
65 }
66
67 } // namespace android
68