Cache IAlarmManager binder handle. (7cbad8a0) · Commits · e / os / android_frameworks_base

core/java/android/os/SystemClock.java

+12 −4

Original line number	Diff line number	Diff line
		@@ -104,6 +104,8 @@ import java.time.ZoneOffset;
		public final class SystemClock {
		private static final String TAG = "SystemClock";

		private static volatile IAlarmManager sIAlarmManager;

		/**
		* This class is uninstantiable.
		*/
		@@ -151,8 +153,7 @@ public final class SystemClock {
		* @return if the clock was successfully set to the specified time.
		*/
		public static boolean setCurrentTimeMillis(long millis) {
		final IAlarmManager mgr = IAlarmManager.Stub
		.asInterface(ServiceManager.getService(Context.ALARM_SERVICE));
		final IAlarmManager mgr = getIAlarmManager();
		if (mgr == null) {
		Slog.e(TAG, "Unable to set RTC: mgr == null");
		return false;
		@@ -280,8 +281,7 @@ public final class SystemClock {
		* @hide
		*/
		public static long currentNetworkTimeMillis() {
		final IAlarmManager mgr = IAlarmManager.Stub
		.asInterface(ServiceManager.getService(Context.ALARM_SERVICE));
		final IAlarmManager mgr = getIAlarmManager();
		if (mgr != null) {
		try {
		return mgr.currentNetworkTimeMillis();
		@@ -296,6 +296,14 @@ public final class SystemClock {
		}
		}

		private static IAlarmManager getIAlarmManager() {
		if (sIAlarmManager == null) {
		sIAlarmManager = IAlarmManager.Stub
		.asInterface(ServiceManager.getService(Context.ALARM_SERVICE));
		}
		return sIAlarmManager;
		}

		/**
		* Returns a {@link Clock} that starts at January 1, 1970 00:00:00.0 UTC,
		* synchronized using a remote network source outside the device.