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 <utils/Log.h>
22 #include <binder/Parcel.h>
23 #include <utils/String8.h>
24
25 #include <private/binder/Static.h>
26
27 namespace android {
28
29 // ----------------------------------------------------------------------
30
31 class BpResultReceiver : public BpInterface<IResultReceiver>
32 {
33 public:
BpResultReceiver(const sp<IBinder> & impl)34 explicit BpResultReceiver(const sp<IBinder>& impl)
35 : BpInterface<IResultReceiver>(impl)
36 {
37 }
38
send(int32_t resultCode)39 virtual void send(int32_t resultCode) {
40 Parcel data;
41 data.writeInterfaceToken(IResultReceiver::getInterfaceDescriptor());
42 data.writeInt32(resultCode);
43 remote()->transact(OP_SEND, data, nullptr, IBinder::FLAG_ONEWAY);
44 }
45 };
46
47 IMPLEMENT_META_INTERFACE(ResultReceiver, "com.android.internal.os.IResultReceiver");
48
49 // ----------------------------------------------------------------------
50
51 // NOLINTNEXTLINE(google-default-arguments)
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)52 status_t BnResultReceiver::onTransact(
53 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
54 {
55 switch(code) {
56 case OP_SEND: {
57 CHECK_INTERFACE(IResultReceiver, data, reply);
58 int32_t resultCode = data.readInt32();
59 send(resultCode);
60 if (reply != nullptr) {
61 reply->writeNoException();
62 }
63 return NO_ERROR;
64 } break;
65 default:
66 return BBinder::onTransact(code, data, reply, flags);
67 }
68 }
69
70 }; // namespace android
71