Merge "Cache results of getProfileParent calls" (d404177a) · Commits · e / os / android_packages_modules_Bluetooth

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

+28 −3

Original line number	Original line	Diff line number	Diff line
	@@ -264,6 +264,21 @@ public final class Utils {
	\|\| (Process.SYSTEM_UID == callingUid);		\|\| (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) {		public static boolean checkCallerAllowManagedProfiles(Context mContext) {
	if (mContext == null) {		if (mContext == null) {
	return checkCaller();		return checkCaller();
	@@ -274,9 +289,19 @@ public final class Utils {
	// Use the Bluetooth process identity when making call to get parent user		// Use the Bluetooth process identity when making call to get parent user
	long ident = Binder.clearCallingIdentity();		long ident = Binder.clearCallingIdentity();
	try {		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);		UserManager um = (UserManager) mContext.getSystemService(Context.USER_SERVICE);
	UserInfo ui = um.getProfileParent(callingUser);		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.		// Always allow SystemUI/System access.
	return (sForegroundUserId == callingUser) \|\| (sForegroundUserId == parentUser)		return (sForegroundUserId == callingUser) \|\| (sForegroundUserId == parentUser)