1 /*
2 * Copyright (C) 2017 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 #include <binder/IUidObserver.h>
18
19 #include <binder/Parcel.h>
20
21 namespace android {
22
23 // ------------------------------------------------------------------------------------
24
25 class BpUidObserver : public BpInterface<IUidObserver>
26 {
27 public:
BpUidObserver(const sp<IBinder> & impl)28 explicit BpUidObserver(const sp<IBinder>& impl)
29 : BpInterface<IUidObserver>(impl)
30 {
31 }
32
onUidGone(uid_t uid,bool disabled)33 virtual void onUidGone(uid_t uid, bool disabled)
34 {
35 Parcel data, reply;
36 data.writeInterfaceToken(IUidObserver::getInterfaceDescriptor());
37 data.writeInt32((int32_t) uid);
38 data.writeInt32(disabled ? 1 : 0);
39 remote()->transact(ON_UID_GONE_TRANSACTION, data, &reply, IBinder::FLAG_ONEWAY);
40 }
41
onUidActive(uid_t uid)42 virtual void onUidActive(uid_t uid)
43 {
44 Parcel data, reply;
45 data.writeInterfaceToken(IUidObserver::getInterfaceDescriptor());
46 data.writeInt32((int32_t) uid);
47 remote()->transact(ON_UID_ACTIVE_TRANSACTION, data, &reply, IBinder::FLAG_ONEWAY);
48 }
49
onUidIdle(uid_t uid,bool disabled)50 virtual void onUidIdle(uid_t uid, bool disabled)
51 {
52 Parcel data, reply;
53 data.writeInterfaceToken(IUidObserver::getInterfaceDescriptor());
54 data.writeInt32((int32_t) uid);
55 data.writeInt32(disabled ? 1 : 0);
56 remote()->transact(ON_UID_IDLE_TRANSACTION, data, &reply, IBinder::FLAG_ONEWAY);
57 }
58
onUidStateChanged(uid_t uid,int32_t procState,int64_t procStateSeq,int32_t capability)59 virtual void onUidStateChanged(uid_t uid, int32_t procState, int64_t procStateSeq,
60 int32_t capability)
61 {
62 Parcel data, reply;
63 data.writeInterfaceToken(IUidObserver::getInterfaceDescriptor());
64 data.writeInt32((int32_t) uid);
65 data.writeInt32(procState);
66 data.writeInt64(procStateSeq);
67 data.writeInt32(capability);
68 remote()->transact(ON_UID_STATE_CHANGED_TRANSACTION, data, &reply, IBinder::FLAG_ONEWAY);
69 }
70 };
71
72 // ----------------------------------------------------------------------
73
74 IMPLEMENT_META_INTERFACE(UidObserver, "android.app.IUidObserver");
75
76 // ----------------------------------------------------------------------
77
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)78 status_t BnUidObserver::onTransact(
79 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
80 {
81 switch(code) {
82 case ON_UID_GONE_TRANSACTION: {
83 CHECK_INTERFACE(IUidObserver, data, reply);
84 uid_t uid = data.readInt32();
85 bool disabled = data.readInt32() == 1;
86 onUidGone(uid, disabled);
87 return NO_ERROR;
88 } break;
89
90 case ON_UID_ACTIVE_TRANSACTION: {
91 CHECK_INTERFACE(IUidObserver, data, reply);
92 uid_t uid = data.readInt32();
93 onUidActive(uid);
94 return NO_ERROR;
95 } break;
96
97 case ON_UID_IDLE_TRANSACTION: {
98 CHECK_INTERFACE(IUidObserver, data, reply);
99 uid_t uid = data.readInt32();
100 bool disabled = data.readInt32() == 1;
101 onUidIdle(uid, disabled);
102 return NO_ERROR;
103 } break;
104 case ON_UID_STATE_CHANGED_TRANSACTION: {
105 CHECK_INTERFACE(IUidObserver, data, reply);
106 uid_t uid = data.readInt32();
107 int32_t procState = data.readInt32();
108 int64_t procStateSeq = data.readInt64();
109 int32_t capability = data.readInt32();
110 onUidStateChanged(uid, procState, procStateSeq, capability);
111 return NO_ERROR;
112 } break;
113 default:
114 return BBinder::onTransact(code, data, reply, flags);
115 }
116 }
117
118 } // namespace android
119