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 #include <nativepower/wake_lock.h>
18
19 #include <base/logging.h>
20 #include <binderwrapper/binder_wrapper.h>
21 #include <nativepower/power_manager_client.h>
22 #include <powermanager/IPowerManager.h>
23 #include <powermanager/PowerManager.h>
24
25 namespace android {
26
WakeLock(const std::string & tag,const std::string & package,PowerManagerClient * client)27 WakeLock::WakeLock(const std::string& tag,
28 const std::string& package,
29 PowerManagerClient* client)
30 : acquired_lock_(false),
31 tag_(tag),
32 package_(package),
33 client_(client) {
34 DCHECK(client_);
35 }
36
~WakeLock()37 WakeLock::~WakeLock() {
38 sp<IPowerManager> power_manager = client_->power_manager();
39 if (acquired_lock_ && power_manager.get()) {
40 status_t status =
41 power_manager->releaseWakeLock(lock_binder_, 0 /* flags */);
42 if (status != OK) {
43 LOG(ERROR) << "Wake lock release request for \"" << tag_ << "\" failed "
44 << "with status " << status;
45 }
46 }
47 }
48
Init()49 bool WakeLock::Init() {
50 sp<IPowerManager> power_manager = client_->power_manager();
51 if (!power_manager.get()) {
52 LOG(ERROR) << "Can't acquire wake lock for \"" << tag_ << "\"; no "
53 << "connection to power manager";
54 return false;
55 }
56
57 lock_binder_ = BinderWrapper::Get()->CreateLocalBinder();
58 status_t status = power_manager->acquireWakeLock(
59 POWERMANAGER_PARTIAL_WAKE_LOCK,
60 lock_binder_, String16(tag_.c_str()), String16(package_.c_str()));
61 if (status != OK) {
62 LOG(ERROR) << "Wake lock acquire request for \"" << tag_ << "\" failed "
63 << "with status " << status;
64 return false;
65 }
66
67 acquired_lock_ = true;
68 return true;
69 }
70
71 } // namespace android
72