Track camera and flashlight usage in battery stats.
Bug: 15986092
Change-Id: I9dc6828332e4091fd93bf2d82839e8e3862a2fc2
diff --git a/media/utils/include/mediautils/BatteryNotifier.h b/media/utils/include/mediautils/BatteryNotifier.h
new file mode 100644
index 0000000..49048042
--- /dev/null
+++ b/media/utils/include/mediautils/BatteryNotifier.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_BATTERY_NOTIFIER_H
+#define MEDIA_BATTERY_NOTIFIER_H
+
+#include <binder/IBatteryStats.h>
+#include <utils/Singleton.h>
+#include <utils/String8.h>
+
+#include <map>
+#include <utility>
+
+namespace android {
+
+/**
+ * Class used for logging battery life events in mediaserver.
+ */
+class BatteryNotifier : public Singleton<BatteryNotifier> {
+
+ friend class Singleton<BatteryNotifier>;
+ BatteryNotifier();
+
+public:
+ ~BatteryNotifier();
+
+ void noteStartVideo();
+ void noteStopVideo();
+ void noteResetVideo();
+ void noteStartAudio();
+ void noteStopAudio();
+ void noteResetAudio();
+ void noteFlashlightOn(const String8& id, int uid);
+ void noteFlashlightOff(const String8& id, int uid);
+ void noteResetFlashlight();
+ void noteStartCamera(const String8& id, int uid);
+ void noteStopCamera(const String8& id, int uid);
+ void noteResetCamera();
+
+private:
+ void onBatteryStatServiceDied();
+
+ class DeathNotifier : public IBinder::DeathRecipient {
+ virtual void binderDied(const wp<IBinder>& /*who*/);
+ };
+
+ Mutex mLock;
+ int mVideoRefCount;
+ int mAudioRefCount;
+ std::map<std::pair<String8, int>, bool> mFlashlightState;
+ std::map<std::pair<String8, int>, bool> mCameraState;
+ sp<IBatteryStats> mBatteryStatService;
+ sp<DeathNotifier> mDeathNotifier;
+
+ sp<IBatteryStats> getBatteryService_l();
+};
+
+} // namespace android
+
+#endif // MEDIA_BATTERY_NOTIFIER_H