Merge "Cache results of getProfileParent calls" (cf302900) · Commits · e / os / android_packages_modules_Bluetooth

android/app/src/com/android/bluetooth/Utils.java

+28 −3

Original line number	Diff line number	Diff line
		@@ -264,6 +264,21 @@ public final class Utils {
		\|\| (Process.SYSTEM_UID == callingUid);
		}

		static Context mParentUserCacheContext = null;
		// Cache location off for 10 users, cache is valid for 2 seconds.
		static LoadingCache<Integer, Integer> mParentUserCache = CacheBuilder.newBuilder()
		.maximumSize(10)
		.expireAfterWrite(2, TimeUnit.SECONDS)
		.build(
		new CacheLoader<Integer, Integer>() {
		public Integer load(Integer callingUser) {
		UserManager um = (UserManager) mParentUserCacheContext.getSystemService(Context.USER_SERVICE);
		UserInfo ui = um.getProfileParent(callingUser);
		int parentUser = (ui != null) ? ui.id : UserHandle.USER_NULL;
		return parentUser;
		}
		});

		public static boolean checkCallerAllowManagedProfiles(Context mContext) {
		if (mContext == null) {
		return checkCaller();
		@@ -274,9 +289,19 @@ public final class Utils {
		// Use the Bluetooth process identity when making call to get parent user
		long ident = Binder.clearCallingIdentity();
		try {

		if (mParentUserCacheContext == null)
		mParentUserCacheContext = mContext;

		int parentUser = 0;

		try {
		parentUser = mParentUserCache.get(callingUid);
		} catch (java.util.concurrent.ExecutionException e) {
		UserManager um = (UserManager) mContext.getSystemService(Context.USER_SERVICE);
		UserInfo ui = um.getProfileParent(callingUser);
		int parentUser = (ui != null) ? ui.id : UserHandle.USER_NULL;
		parentUser = (ui != null) ? ui.id : UserHandle.USER_NULL;
		}

		// Always allow SystemUI/System access.
		return (sForegroundUserId == callingUser) \|\| (sForegroundUserId == parentUser)