Merge "Cache StrictMode handle to IStorageManager" into main

    /** Assume locked until we hear otherwise */

    private static volatile boolean sCeStorageUnlocked = false;

    /**

     * Avoid (potentially) costly and repeated lookups to the same mount service.

     * Note that we don't use the Singleton wrapper as lookup may fail early during boot.

     */

    private static volatile IStorageManager sStorageManager;

    private static boolean isCeStorageUnlocked(int userId) {

        final IStorageManager storage = IStorageManager.Stub

        IStorageManager storage = sStorageManager;

        if (storage == null) {

            storage = IStorageManager.Stub

                .asInterface(ServiceManager.getService("mount"));

            // As the queried handle may be null early during boot, only stash valid handles,

            // avoiding races with concurrent service queries.

            if (storage != null) {

                sStorageManager = storage;

            }

        }

        if (storage != null) {

            try {

                return storage.isCeStorageUnlocked(userId);

            } catch (RemoteException ignored) {

                // Conservatively clear the ref, allowing refresh if the remote process restarts.

                sStorageManager = null;

            }

        }

        return false;