Add a thread to handle the radio shutdown. (b8203719) · Commits · e / os / android_frameworks_base

services/java/com/android/server/pm/ShutdownThread.java

+118 −87

Original line number	Diff line number	Diff line
		@@ -51,11 +51,11 @@ import android.view.WindowManager;
		public final class ShutdownThread extends Thread {
		// constants
		private static final String TAG = "ShutdownThread";
		private static final int MAX_NUM_PHONE_STATE_READS = 24;
		private static final int PHONE_STATE_POLL_SLEEP_MSEC = 500;
		// maximum time we wait for the shutdown broadcast before going on.
		private static final int MAX_BROADCAST_TIME = 10*1000;
		private static final int MAX_SHUTDOWN_WAIT_TIME = 20*1000;
		private static final int MAX_RADIO_WAIT_TIME = 12*1000;

		// length of vibration before shutting down
		private static final int SHUTDOWN_VIBRATE_MS = 500;
		@@ -263,10 +263,6 @@ public final class ShutdownThread extends Thread {
		* Shuts off power regardless of radio and bluetooth state if the alloted time has passed.
		*/
		public void run() {
		boolean nfcOff;
		boolean bluetoothOff;
		boolean radioOff;

		BroadcastReceiver br = new BroadcastReceiver() {
		@Override public void onReceive(Context context, Intent intent) {
		// We don't allow apps to cancel this, so ignore the result.
		@@ -325,6 +321,61 @@ public final class ShutdownThread extends Thread {
		}
		}

		// Shutdown radios.
		shutdownRadios(MAX_RADIO_WAIT_TIME);

		// Shutdown MountService to ensure media is in a safe state
		IMountShutdownObserver observer = new IMountShutdownObserver.Stub() {
		public void onShutDownComplete(int statusCode) throws RemoteException {
		Log.w(TAG, "Result code " + statusCode + " from MountService.shutdown");
		actionDone();
		}
		};

		Log.i(TAG, "Shutting down MountService");

		// Set initial variables and time out time.
		mActionDone = false;
		final long endShutTime = SystemClock.elapsedRealtime() + MAX_SHUTDOWN_WAIT_TIME;
		synchronized (mActionDoneSync) {
		try {
		final IMountService mount = IMountService.Stub.asInterface(
		ServiceManager.checkService("mount"));
		if (mount != null) {
		mount.shutdown(observer);
		} else {
		Log.w(TAG, "MountService unavailable for shutdown");
		}
		} catch (Exception e) {
		Log.e(TAG, "Exception during MountService shutdown", e);
		}
		while (!mActionDone) {
		long delay = endShutTime - SystemClock.elapsedRealtime();
		if (delay <= 0) {
		Log.w(TAG, "Shutdown wait timed out");
		break;
		}
		try {
		mActionDoneSync.wait(delay);
		} catch (InterruptedException e) {
		}
		}
		}

		rebootOrShutdown(mReboot, mRebootReason);
		}

		private void shutdownRadios(int timeout) {
		// If a radio is wedged, disabling it may hang so we do this work in another thread,
		// just in case.
		final long endTime = SystemClock.elapsedRealtime() + timeout;
		final boolean[] done = new boolean[1];
		Thread t = new Thread() {
		public void run() {
		boolean nfcOff;
		boolean bluetoothOff;
		boolean radioOff;

		final INfcAdapter nfc =
		INfcAdapter.Stub.asInterface(ServiceManager.checkService("nfc"));
		final ITelephony phone =
		@@ -332,9 +383,6 @@ public final class ShutdownThread extends Thread {
		final IBluetooth bluetooth =
		IBluetooth.Stub.asInterface(ServiceManager.checkService(
		BluetoothAdapter.BLUETOOTH_SERVICE));
		final IMountService mount =
		IMountService.Stub.asInterface(
		ServiceManager.checkService("mount"));

		try {
		nfcOff = nfc == null \|\|
		@@ -373,8 +421,7 @@ public final class ShutdownThread extends Thread {

		Log.i(TAG, "Waiting for NFC, Bluetooth and Radio...");

		// Wait a max of 32 seconds for clean shutdown
		for (int i = 0; i < MAX_NUM_PHONE_STATE_READS; i++) {
		while (SystemClock.elapsedRealtime() < endTime) {
		if (!bluetoothOff) {
		try {
		bluetoothOff =
		@@ -383,6 +430,9 @@ public final class ShutdownThread extends Thread {
		Log.e(TAG, "RemoteException during bluetooth shutdown", ex);
		bluetoothOff = true;
		}
		if (bluetoothOff) {
		Log.i(TAG, "Bluetooth turned off.");
		}
		}
		if (!radioOff) {
		try {
		@@ -391,6 +441,9 @@ public final class ShutdownThread extends Thread {
		Log.e(TAG, "RemoteException during radio shutdown", ex);
		radioOff = true;
		}
		if (radioOff) {
		Log.i(TAG, "Radio turned off.");
		}
		}
		if (!nfcOff) {
		try {
		@@ -399,51 +452,29 @@ public final class ShutdownThread extends Thread {
		Log.e(TAG, "RemoteException during NFC shutdown", ex);
		nfcOff = true;
		}
		if (radioOff) {
		Log.i(TAG, "NFC turned off.");
		}
		}

		if (radioOff && bluetoothOff && nfcOff) {
		Log.i(TAG, "NFC, Radio and Bluetooth shutdown complete.");
		done[0] = true;
		break;
		}
		SystemClock.sleep(PHONE_STATE_POLL_SLEEP_MSEC);
		}

		// Shutdown MountService to ensure media is in a safe state
		IMountShutdownObserver observer = new IMountShutdownObserver.Stub() {
		public void onShutDownComplete(int statusCode) throws RemoteException {
		Log.w(TAG, "Result code " + statusCode + " from MountService.shutdown");
		actionDone();
		}
		};

		Log.i(TAG, "Shutting down MountService");
		// Set initial variables and time out time.
		mActionDone = false;
		final long endShutTime = SystemClock.elapsedRealtime() + MAX_SHUTDOWN_WAIT_TIME;
		synchronized (mActionDoneSync) {
		t.start();
		try {
		if (mount != null) {
		mount.shutdown(observer);
		} else {
		Log.w(TAG, "MountService unavailable for shutdown");
		t.join(timeout);
		} catch (InterruptedException ex) {
		}
		} catch (Exception e) {
		Log.e(TAG, "Exception during MountService shutdown", e);
		if (!done[0]) {
		Log.w(TAG, "Timed out waiting for NFC, Radio and Bluetooth shutdown.");
		}
		while (!mActionDone) {
		long delay = endShutTime - SystemClock.elapsedRealtime();
		if (delay <= 0) {
		Log.w(TAG, "Shutdown wait timed out");
		break;
		}
		try {
		mActionDoneSync.wait(delay);
		} catch (InterruptedException e) {
		}
		}
		}

		rebootOrShutdown(mReboot, mRebootReason);
		}

		/**