1 /* 2 * Copyright 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 #ifndef MEDIA_BATTERY_NOTIFIER_H 18 #define MEDIA_BATTERY_NOTIFIER_H 19 20 #include <batterystats/IBatteryStats.h> 21 #include <utils/Singleton.h> 22 #include <utils/String8.h> 23 24 #include <map> 25 #include <utility> 26 27 namespace android { 28 29 /** 30 * Class used for logging battery life events in mediaserver. 31 */ 32 class BatteryNotifier : public Singleton<BatteryNotifier> { 33 34 friend class Singleton<BatteryNotifier>; 35 BatteryNotifier(); 36 37 public: 38 ~BatteryNotifier(); 39 40 void noteStartVideo(uid_t uid); 41 void noteStopVideo(uid_t uid); 42 void noteResetVideo(); 43 void noteStartAudio(uid_t uid); 44 void noteStopAudio(uid_t uid); 45 void noteResetAudio(); 46 void noteFlashlightOn(const String8& id, uid_t uid); 47 void noteFlashlightOff(const String8& id, uid_t uid); 48 void noteResetFlashlight(); 49 void noteStartCamera(const String8& id, uid_t uid); 50 void noteStopCamera(const String8& id, uid_t uid); 51 void noteResetCamera(); 52 53 private: 54 void onBatteryStatServiceDied(); 55 56 class DeathNotifier : public IBinder::DeathRecipient { 57 virtual void binderDied(const wp<IBinder>& /*who*/); 58 }; 59 60 Mutex mLock; 61 std::map<uid_t, int> mVideoRefCounts; 62 std::map<uid_t, int> mAudioRefCounts; 63 std::map<std::pair<String8, uid_t>, bool> mFlashlightState; 64 std::map<std::pair<String8, uid_t>, bool> mCameraState; 65 sp<IBatteryStats> mBatteryStatService; 66 sp<DeathNotifier> mDeathNotifier; 67 68 sp<IBatteryStats> getBatteryService_l(); 69 }; 70 71 } // namespace android 72 73 #endif // MEDIA_BATTERY_NOTIFIER_H 74