BatteryService: add traces. (8cc18ef6) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/BatteryService.java

+99 −50

Original line number	Diff line number	Diff line
		@@ -56,6 +56,7 @@ import android.os.DropBoxManager;
		import android.os.RemoteException;
		import android.os.ServiceManager;
		import android.os.SystemClock;
		import android.os.Trace;
		import android.os.UEventObserver;
		import android.os.UserHandle;
		import android.provider.Settings;
		@@ -246,6 +247,7 @@ public final class BatteryService extends SystemService {
		}

		private void registerHealthCallback() {
		traceBegin("HealthInitWrapper");
		mHealthServiceWrapper = new HealthServiceWrapper();
		mHealthHalCallback = new HealthHalCallback();
		// IHealth is lazily retrieved.
		@@ -259,8 +261,11 @@ public final class BatteryService extends SystemService {
		} catch (NoSuchElementException ex) {
		Slog.e(TAG, "health: cannot register callback. (no supported health HAL service)");
		throw ex;
		} finally {
		traceEnd();
		}

		traceBegin("HealthInitWaitUpdate");
		// init register for new service notifications, and IServiceManager should return the
		// existing service in a near future. Wait for this.update() to instantiate
		// the initial mHealthInfo.
		@@ -280,6 +285,7 @@ public final class BatteryService extends SystemService {

		Slog.i(TAG, "health: Waited " + (SystemClock.uptimeMillis() - beforeWait)
		+ "ms and received the update.");
		traceEnd();
		}

		private void updateBatteryWarningLevelLocked() {
		@@ -375,6 +381,7 @@ public final class BatteryService extends SystemService {
		}

		private void update(HealthInfo info) {
		traceBegin("HealthInfoUpdate");
		synchronized (mLock) {
		if (!mUpdatesStopped) {
		mHealthInfo = info;
		@@ -385,6 +392,7 @@ public final class BatteryService extends SystemService {
		copy(mLastHealthInfo, info);
		}
		}
		traceEnd();
		}

		private static void copy(HealthInfo dst, HealthInfo src) {
		@@ -932,6 +940,14 @@ public final class BatteryService extends SystemService {
		proto.flush();
		}

		private static void traceBegin(String name) {
		Trace.traceBegin(Trace.TRACE_TAG_SYSTEM_SERVER, name);
		}

		private static void traceEnd() {
		Trace.traceEnd(Trace.TRACE_TAG_SYSTEM_SERVER);
		}

		private final class Led {
		private final Light mBatteryLight;

		@@ -997,6 +1013,7 @@ public final class BatteryService extends SystemService {
		String instance) {
		if (newService == null) return;

		traceBegin("HealthUnregisterCallback");
		try {
		if (oldService != null) {
		int r = oldService.unregisterCallback(this);
		@@ -1008,8 +1025,11 @@ public final class BatteryService extends SystemService {
		} catch (RemoteException ex) {
		Slog.w(TAG, "health: cannot unregister previous callback (transaction error): "
		+ ex.getMessage());
		} finally {
		traceEnd();
		}

		traceBegin("HealthRegisterCallback");
		try {
		int r = newService.registerCallback(this);
		if (r != Result.SUCCESS) {
		@@ -1022,6 +1042,8 @@ public final class BatteryService extends SystemService {
		} catch (RemoteException ex) {
		Slog.e(TAG, "health: cannot register callback (transaction error): "
		+ ex.getMessage());
		} finally {
		traceEnd();
		}
		}
		}
		@@ -1054,6 +1076,8 @@ public final class BatteryService extends SystemService {
		Slog.e(TAG, "health: must not call unregisterListener on battery properties");
		}
		public int getProperty(int id, final BatteryProperty prop) throws RemoteException {
		traceBegin("HealthGetProperty");
		try {
		IHealth service = mHealthServiceWrapper.getLastService();
		if (service == null) throw new RemoteException("no health service");
		final MutableInt outResult = new MutableInt(Result.NOT_SUPPORTED);
		@@ -1096,11 +1120,19 @@ public final class BatteryService extends SystemService {
		break;
		}
		return outResult.value;
		} finally {
		traceEnd();
		}
		}
		public void scheduleUpdate() throws RemoteException {
		traceBegin("HealthScheduleUpdate");
		try {
		IHealth service = mHealthServiceWrapper.getLastService();
		if (service == null) throw new RemoteException("no health service");
		service.update();
		} finally {
		traceEnd();
		}
		}
		}

		@@ -1203,16 +1235,28 @@ public final class BatteryService extends SystemService {
		if (callback == null \|\| managerSupplier == null \|\| healthSupplier == null)
		throw new NullPointerException();

		IServiceManager manager;

		mCallback = callback;
		mHealthSupplier = healthSupplier;

		IServiceManager manager = managerSupplier.get();
		traceBegin("HealthInitGetManager");
		try {
		manager = managerSupplier.get();
		} finally {
		traceEnd();
		}
		for (String name : sAllInstances) {
		traceBegin("HealthInitGetTransport_" + name);
		try {
		if (manager.getTransport(IHealth.kInterfaceName, name) !=
		IServiceManager.Transport.EMPTY) {
		mInstanceName = name;
		break;
		}
		} finally {
		traceEnd();
		}
		}

		if (mInstanceName == null) {
		@@ -1221,7 +1265,12 @@ public final class BatteryService extends SystemService {
		sAllInstances.toString()));
		}

		traceBegin("HealthInitRegisterNotification");
		try {
		manager.registerForNotifications(IHealth.kInterfaceName, mInstanceName, mNotification);
		} finally {
		traceEnd();
		}
		Slog.i(TAG, "health: HealthServiceWrapper listening to instance " + mInstanceName);
		}