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
21namespace android {
22
23// ------------------------------------------------------------------------------------
24
25class BpUidObserver : public BpInterface<IUidObserver>
26{
27public:
28    explicit BpUidObserver(const sp<IBinder>& impl)
29        : BpInterface<IUidObserver>(impl)
30    {
31    }
32
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
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
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};
59
60// ----------------------------------------------------------------------
61
62IMPLEMENT_META_INTERFACE(UidObserver, "android.app.IUidObserver");
63
64// ----------------------------------------------------------------------
65
66status_t BnUidObserver::onTransact(
67    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
68{
69    switch(code) {
70        case ON_UID_GONE_TRANSACTION: {
71            CHECK_INTERFACE(IUidObserver, data, reply);
72            uid_t uid = data.readInt32();
73            bool disabled = data.readInt32() == 1;
74            onUidGone(uid, disabled);
75            return NO_ERROR;
76        } break;
77
78        case ON_UID_ACTIVE_TRANSACTION: {
79            CHECK_INTERFACE(IUidObserver, data, reply);
80            uid_t uid = data.readInt32();
81            onUidActive(uid);
82            return NO_ERROR;
83        } break;
84
85        case ON_UID_IDLE_TRANSACTION: {
86            CHECK_INTERFACE(IUidObserver, data, reply);
87            uid_t uid = data.readInt32();
88            bool disabled = data.readInt32() == 1;
89            onUidIdle(uid, disabled);
90            return NO_ERROR;
91        } break;
92        default:
93            return BBinder::onTransact(code, data, reply, flags);
94    }
95}
96
97}; // namespace android
98