1 /* 2 * Copyright (C) 2012 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 <stdint.h> 18 #include <sys/types.h> 19 20 #include <utils/Singleton.h> 21 22 namespace android { 23 // --------------------------------------------------------------------------- 24 25 class BatteryService : public Singleton<BatteryService> { 26 static const int TRANSACTION_noteStartSensor = IBinder::FIRST_CALL_TRANSACTION + 3; 27 static const int TRANSACTION_noteStopSensor = IBinder::FIRST_CALL_TRANSACTION + 4; 28 static const String16 DESCRIPTOR; 29 30 friend class Singleton<BatteryService>; 31 sp<IBinder> mBatteryStatService; 32 33 BatteryService(); 34 status_t noteStartSensor(int uid, int handle); 35 status_t noteStopSensor(int uid, int handle); 36 37 void enableSensorImpl(uid_t uid, int handle); 38 void disableSensorImpl(uid_t uid, int handle); 39 void cleanupImpl(uid_t uid); 40 41 struct Info { 42 uid_t uid; 43 int handle; 44 int32_t count; 45 Info() : uid(0), handle(0), count(0) { } 46 Info(uid_t uid, int handle) : uid(uid), handle(handle), count(0) { } 47 bool operator < (const Info& rhs) const { 48 return (uid == rhs.uid) ? (handle < rhs.handle) : (uid < rhs.uid); 49 } 50 }; 51 52 Mutex mActivationsLock; 53 SortedVector<Info> mActivations; 54 bool addSensor(uid_t uid, int handle); 55 bool removeSensor(uid_t uid, int handle); 56 57 public: 58 static void enableSensor(uid_t uid, int handle) { 59 BatteryService::getInstance().enableSensorImpl(uid, handle); 60 } 61 static void disableSensor(uid_t uid, int handle) { 62 BatteryService::getInstance().disableSensorImpl(uid, handle); 63 } 64 static void cleanup(uid_t uid) { 65 BatteryService::getInstance().cleanupImpl(uid); 66 } 67 }; 68 69 // --------------------------------------------------------------------------- 70 }; // namespace android 71 72
