IPowerManager.cpp revision 708cc794f6ccd4d31e0a00a23b289272c665adc1 
1/*
2 * Copyright (C) 2011 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 "IPowerManager"
18//#define LOG_NDEBUG 0
19#include <utils/Log.h>
20
21#include <stdint.h>
22#include <sys/types.h>
23
24#include <binder/Parcel.h>
25
26#include <powermanager/IPowerManager.h>
27
28namespace android {
29
30// must be kept in sync with IPowerManager.aidl
31enum {
32    ACQUIRE_WAKE_LOCK = IBinder::FIRST_CALL_TRANSACTION,
33    ACQUIRE_WAKE_LOCK_UID = IBinder::FIRST_CALL_TRANSACTION + 1,
34    RELEASE_WAKE_LOCK = IBinder::FIRST_CALL_TRANSACTION + 2,
35    UPDATE_WAKE_LOCK_UIDS = IBinder::FIRST_CALL_TRANSACTION + 3,
36};
37
38class BpPowerManager : public BpInterface<IPowerManager>
39{
40public:
41    BpPowerManager(const sp<IBinder>& impl)
42        : BpInterface<IPowerManager>(impl)
43    {
44    }
45
46    virtual status_t acquireWakeLock(int flags, const sp<IBinder>& lock, const String16& tag,
47            const String16& packageName)
48    {
49        Parcel data, reply;
50        data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
51
52        data.writeStrongBinder(lock);
53        data.writeInt32(flags);
54        data.writeString16(tag);
55        data.writeString16(packageName);
56        data.writeInt32(0); // no WorkSource
57        return remote()->transact(ACQUIRE_WAKE_LOCK, data, &reply);
58    }
59
60    virtual status_t acquireWakeLockWithUid(int flags, const sp<IBinder>& lock, const String16& tag,
61            const String16& packageName, int uid)
62    {
63        Parcel data, reply;
64        data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
65
66        data.writeStrongBinder(lock);
67        data.writeInt32(flags);
68        data.writeString16(tag);
69        data.writeString16(packageName);
70        data.writeInt32(uid); // uid to blame for the work
71        return remote()->transact(ACQUIRE_WAKE_LOCK_UID, data, &reply);
72    }
73
74    virtual status_t releaseWakeLock(const sp<IBinder>& lock, int flags)
75    {
76        Parcel data, reply;
77        data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
78        data.writeStrongBinder(lock);
79        data.writeInt32(flags);
80        return remote()->transact(RELEASE_WAKE_LOCK, data, &reply);
81    }
82
83    virtual status_t updateWakeLockUids(const sp<IBinder>& lock, int len, const int *uids) {
84        Parcel data, reply;
85        data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
86        data.writeStrongBinder(lock);
87        data.writeInt32Array(len, uids);
88        // We don't really care too much if this succeeds (there's nothing we can do if it doesn't)
89        // but it should return ASAP
90        return remote()->transact(UPDATE_WAKE_LOCK_UIDS, data, &reply, IBinder::FLAG_ONEWAY);
91    }
92};
93
94IMPLEMENT_META_INTERFACE(PowerManager, "android.os.IPowerManager");
95
96// ----------------------------------------------------------------------------
97
98}; // namespace android
99