MountService: Explicitly query volume state on startup (5b77dab2) · Commits · e / os / android_frameworks_base

services/java/com/android/server/MountService.java

+42 −10

Original line number	Diff line number	Diff line
		@@ -526,21 +526,53 @@ class MountService extends IMountService.Stub
		* Callback from NativeDaemonConnector
		*/
		public void onDaemonConnected() {
		/*
		* Since we'll be calling back into the NativeDaemonConnector,
		* we need to do our work in a new thread.
		*/
		new Thread() {
		public void run() {
		/**
		* Determine media state and UMS detection status
		*/
		String path = Environment.getExternalStorageDirectory().getPath();
		String state = Environment.MEDIA_REMOVED;

		try {
		if (!getVolumeState(Environment.getExternalStorageDirectory().getPath())
		.equals(Environment.MEDIA_MOUNTED)) {
		String[] vols = mConnector.doListCommand(
		"list_volumes", VoldResponseCode.VolumeListResult);
		for (String volstr : vols) {
		String[] tok = volstr.split(" ");
		// FMT: <label> <mountpoint> <state>
		if (!tok[1].equals(path)) {
		Log.w(TAG, String.format(
		"Skipping unknown volume '%s'",tok[1]));
		continue;
		}
		int st = Integer.parseInt(tok[2]);
		if (st == VolumeState.NoMedia) {
		state = Environment.MEDIA_REMOVED;
		} else if (st == VolumeState.Idle) {
		state = Environment.MEDIA_UNMOUNTED;
		try {
		mountVolume(Environment.getExternalStorageDirectory().getPath());
		mountVolume(path);
		} catch (Exception ex) {
		Log.w(TAG, "Connection-mount failed");
		}
		Log.e(TAG, "Connection-mount failed", ex);
		}
		} else if (st == VolumeState.Mounted) {
		state = Environment.MEDIA_MOUNTED;
		Log.i(TAG, "Media already mounted on daemon connection");
		} else if (st == VolumeState.Shared) {
		state = Environment.MEDIA_SHARED;
		Log.i(TAG, "Media shared on daemon connection");
		} else {
		Log.d(TAG, "Skipping connection-mount; already mounted");
		throw new Exception(String.format("Unexpected state %d", st));
		}
		} catch (IllegalStateException rex) {
		Log.e(TAG, "Exception while handling connection mount ", rex);
		}
		updatePublicVolumeState(path, state);
		} catch (Exception e) {
		Log.e(TAG, "Error processing initial volume state", e);
		updatePublicVolumeState(path, Environment.MEDIA_REMOVED);
		}

		try {