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 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 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 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
