Merge changes from topic "192281479-scdev" into sc-dev

* changes:
  Revert "Only update cache for new user on user create"
  Revert "Fixes incorrect array type comparison"

services/core/java/com/android/server/pm/AppsFilter.java

@@ -17,8 +17,6 @@
 package com.android.server.pm;
 
 import static android.os.Trace.TRACE_TAG_PACKAGE_MANAGER;
-import static android.os.UserHandle.USER_ALL;
-import static android.os.UserHandle.USER_NULL;
 import static android.provider.DeviceConfig.NAMESPACE_PACKAGE_MANAGER_SERVICE;
 
 import static com.android.internal.annotations.VisibleForTesting.Visibility.PRIVATE;
@@ -687,7 +685,7 @@ public class AppsFilter implements Watchable, Snappable {
                 synchronized (mCacheLock) {
                     if (mShouldFilterCache != null) {
                         updateShouldFilterCacheForPackage(mShouldFilterCache, null, newPkgSetting,
-                                settings, users, USER_ALL, settings.size());
+                                settings, users, settings.size());
                         if (additionalChangedPackages != null) {
                             for (int index = 0; index < additionalChangedPackages.size(); index++) {
                                 String changedPackage = additionalChangedPackages.valueAt(index);
@@ -700,8 +698,7 @@ public class AppsFilter implements Watchable, Snappable {
                                 }
 
                                 updateShouldFilterCacheForPackage(mShouldFilterCache, null,
-                                        changedPkgSetting, settings, users, USER_ALL,
+                                        changedPkgSetting, settings, users, settings.size());
-                                        settings.size());
                             }
                         }
                     } // else, rebuild entire cache when system is ready
@@ -833,57 +830,24 @@ public class AppsFilter implements Watchable, Snappable {
             }
         }
     }
-    private void updateEntireShouldFilterCache() {
-        updateEntireShouldFilterCache(USER_ALL);
-    }
 
-    private void updateEntireShouldFilterCache(int subjectUserId) {
+    private void updateEntireShouldFilterCache() {
         mStateProvider.runWithState((settings, users) -> {
-            int userId = USER_NULL;
-            for (int u = 0; u < users.length; u++) {
-                if (subjectUserId == users[u].id) {
-                    userId = subjectUserId;
-                    break;
-                }
-            }
-            if (userId == USER_NULL) {
-                Slog.e(TAG, "We encountered a new user that isn't a member of known users, "
-                        + "updating the whole cache");
-                userId = USER_ALL;
-            }
             WatchedSparseBooleanMatrix cache =
-                    updateEntireShouldFilterCacheInner(settings, users, userId);
+                    updateEntireShouldFilterCacheInner(settings, users);
             synchronized (mCacheLock) {
-                if (userId != USER_ALL) {
-                    // if we're only updating a single user id, we need to copy over the prior
-                    // cached values for the other users.
-                    int[] uids = mShouldFilterCache.keys();
-                    for (int i = 0; i < uids.length; i++) {
-                        int uid1 = uids[i];
-                        if (UserHandle.getUserId(uid1) == userId) {
-                            continue;
-                        }
-                        for (int j = 0; j < uids.length; j++) {
-                            int uid2 = uids[j];
-                            if (UserHandle.getUserId(uid2) == userId) {
-                                continue;
-                            }
-                            cache.put(uid1, uid2, mShouldFilterCache.get(uid1, uid2));
-                        }
-                    }
-                }
                 mShouldFilterCache = cache;
             }
         });
     }
 
     private WatchedSparseBooleanMatrix updateEntireShouldFilterCacheInner(
-            ArrayMap<String, PackageSetting> settings, UserInfo[] users, int subjectUserId) {
+            ArrayMap<String, PackageSetting> settings, UserInfo[] users) {
         WatchedSparseBooleanMatrix cache =
                 new WatchedSparseBooleanMatrix(users.length * settings.size());
         for (int i = settings.size() - 1; i >= 0; i--) {
             updateShouldFilterCacheForPackage(cache,
-                    null /*skipPackage*/, settings.valueAt(i), settings, users, subjectUserId, i);
+                    null /*skipPackage*/, settings.valueAt(i), settings, users, i);
         }
         return cache;
     }
@@ -904,8 +868,8 @@ public class AppsFilter implements Watchable, Snappable {
                     packagesCache.put(settings.keyAt(i), pkg);
                 }
             });
-            WatchedSparseBooleanMatrix cache = updateEntireShouldFilterCacheInner(
+            WatchedSparseBooleanMatrix cache =
-                    settingsCopy, usersRef[0], USER_ALL);
+                    updateEntireShouldFilterCacheInner(settingsCopy, usersRef[0]);
             boolean[] changed = new boolean[1];
             // We have a cache, let's make sure the world hasn't changed out from under us.
             mStateProvider.runWithState((settings, users) -> {
@@ -935,10 +899,10 @@ public class AppsFilter implements Watchable, Snappable {
         });
     }
 
-    public void onUserCreated(int newUserId) {
+    public void onUsersChanged() {
         synchronized (mCacheLock) {
             if (mShouldFilterCache != null) {
-                updateEntireShouldFilterCache(newUserId);
+                updateEntireShouldFilterCache();
                 onChanged();
             }
         }
@@ -949,7 +913,7 @@ public class AppsFilter implements Watchable, Snappable {
             if (mShouldFilterCache != null) {
                 mStateProvider.runWithState((settings, users) -> {
                     updateShouldFilterCacheForPackage(mShouldFilterCache, null /* skipPackage */,
-                            settings.get(packageName), settings, users, USER_ALL,
+                            settings.get(packageName), settings, users,
                             settings.size() /*maxIndex*/);
                 });
             }
@@ -958,7 +922,7 @@ public class AppsFilter implements Watchable, Snappable {
 
     private void updateShouldFilterCacheForPackage(WatchedSparseBooleanMatrix cache,
             @Nullable String skipPackageName, PackageSetting subjectSetting, ArrayMap<String,
-            PackageSetting> allSettings, UserInfo[] allUsers, int subjectUserId, int maxIndex) {
+            PackageSetting> allSettings, UserInfo[] allUsers, int maxIndex) {
         for (int i = Math.min(maxIndex, allSettings.size() - 1); i >= 0; i--) {
             PackageSetting otherSetting = allSettings.valueAt(i);
             if (subjectSetting.appId == otherSetting.appId) {
@@ -968,31 +932,22 @@ public class AppsFilter implements Watchable, Snappable {
             if (subjectSetting.name == skipPackageName || otherSetting.name == skipPackageName) {
                 continue;
             }
-            if (subjectUserId == USER_ALL) {
+            final int userCount = allUsers.length;
-                for (int su = 0; su < allUsers.length; su++) {
+            final int appxUidCount = userCount * allSettings.size();
-                    updateShouldFilterCacheForUser(cache, subjectSetting, allUsers, otherSetting,
+            for (int su = 0; su < userCount; su++) {
-                            allUsers[su].id);
+                int subjectUser = allUsers[su].id;
-                }
+                for (int ou = 0; ou < userCount; ou++) {
-            } else {
-                updateShouldFilterCacheForUser(cache, subjectSetting, allUsers, otherSetting,
-                        subjectUserId);
-            }
-        }
-    }
-
-    private void updateShouldFilterCacheForUser(WatchedSparseBooleanMatrix cache,
-            PackageSetting subjectSetting, UserInfo[] allUsers, PackageSetting otherSetting,
-            int subjectUserId) {
-        for (int ou = 0; ou < allUsers.length; ou++) {
                     int otherUser = allUsers[ou].id;
-            int subjectUid = UserHandle.getUid(subjectUserId, subjectSetting.appId);
+                    int subjectUid = UserHandle.getUid(subjectUser, subjectSetting.appId);
                     int otherUid = UserHandle.getUid(otherUser, otherSetting.appId);
                     cache.put(subjectUid, otherUid,
                             shouldFilterApplicationInternal(
                                     subjectUid, subjectSetting, otherSetting, otherUser));
                     cache.put(otherUid, subjectUid,
                             shouldFilterApplicationInternal(
-                            otherUid, otherSetting, subjectSetting, subjectUserId));
+                                    otherUid, otherSetting, subjectSetting, subjectUser));
+                }
+            }
         }
     }
 
@@ -1190,7 +1145,7 @@ public class AppsFilter implements Watchable, Snappable {
                             continue;
                         }
                         updateShouldFilterCacheForPackage(mShouldFilterCache, setting.name,
-                                siblingSetting, settings, users, USER_ALL, settings.size());
+                                siblingSetting, settings, users, settings.size());
                     }
                 }
 
@@ -1207,7 +1162,7 @@ public class AppsFilter implements Watchable, Snappable {
                             }
 
                             updateShouldFilterCacheForPackage(mShouldFilterCache, null,
-                                    changedPkgSetting, settings, users, USER_ALL, settings.size());
+                                    changedPkgSetting, settings, users, settings.size());
                         }
                     }
                 }

services/core/java/com/android/server/pm/PackageManagerService.java

@@ -26504,7 +26504,7 @@ public class PackageManagerService extends IPackageManager.Stub
         synchronized (mLock) {
             scheduleWritePackageRestrictionsLocked(userId);
             scheduleWritePackageListLocked(userId);
-            mAppsFilter.onUserCreated(userId);
+            mAppsFilter.onUsersChanged();
         }
     }
 

services/tests/servicestests/src/com/android/server/pm/AppsFilterTest.java

@@ -83,17 +83,9 @@ public class AppsFilterTest {
     private static final int DUMMY_OVERLAY_APPID = 10756;
     private static final int SYSTEM_USER = 0;
     private static final int SECONDARY_USER = 10;
-    private static final int ADDED_USER = 11;
     private static final int[] USER_ARRAY = {SYSTEM_USER, SECONDARY_USER};
-    private static final int[] USER_ARRAY_WITH_ADDED = {SYSTEM_USER, SECONDARY_USER, ADDED_USER};
+    private static final UserInfo[] USER_INFO_LIST = Arrays.stream(USER_ARRAY).mapToObj(
-    private static final UserInfo[] USER_INFO_LIST = toUserInfos(USER_ARRAY);
+            id -> new UserInfo(id, Integer.toString(id), 0)).toArray(UserInfo[]::new);
-    private static final UserInfo[] USER_INFO_LIST_WITH_ADDED = toUserInfos(USER_ARRAY_WITH_ADDED);
-
-    private static UserInfo[] toUserInfos(int[] userIds) {
-        return Arrays.stream(userIds)
-                .mapToObj(id -> new UserInfo(id, Integer.toString(id), 0))
-                .toArray(UserInfo[]::new);
-    }
 
     @Mock
     AppsFilter.FeatureConfig mFeatureConfigMock;
@@ -326,47 +318,6 @@ public class AppsFilterTest {
         watcher.verifyNoChangeReported("shouldFilterApplication");
     }
 
-    @Test
-    public void testOnUserCreated_FilterMatches() throws Exception {
-        final AppsFilter appsFilter =
-                new AppsFilter(mStateProvider, mFeatureConfigMock, new String[]{}, false, null,
-                        mMockExecutor);
-        simulateAddBasicAndroid(appsFilter);
-
-        appsFilter.onSystemReady();
-
-        PackageSetting target = simulateAddPackage(appsFilter,
-                pkgWithProvider("com.some.package", "com.some.authority"), DUMMY_TARGET_APPID);
-        PackageSetting calling = simulateAddPackage(appsFilter,
-                pkgQueriesProvider("com.some.other.package", "com.some.authority"),
-                DUMMY_CALLING_APPID);
-
-        for (int subjectUserId : USER_ARRAY) {
-            for (int otherUserId : USER_ARRAY) {
-                assertFalse(appsFilter.shouldFilterApplication(
-                        UserHandle.getUid(DUMMY_CALLING_APPID, subjectUserId), calling, target,
-                        otherUserId));
-            }
-        }
-
-        // adds new user
-        doAnswer(invocation -> {
-            ((AppsFilter.StateProvider.CurrentStateCallback) invocation.getArgument(0))
-                    .currentState(mExisting, USER_INFO_LIST_WITH_ADDED);
-            return new Object();
-        }).when(mStateProvider)
-                .runWithState(any(AppsFilter.StateProvider.CurrentStateCallback.class));
-        appsFilter.onUserCreated(ADDED_USER);
-
-        for (int subjectUserId : USER_ARRAY_WITH_ADDED) {
-            for (int otherUserId : USER_ARRAY_WITH_ADDED) {
-                assertFalse(appsFilter.shouldFilterApplication(
-                        UserHandle.getUid(DUMMY_CALLING_APPID, subjectUserId), calling, target,
-                        otherUserId));
-            }
-        }
-    }
-
     @Test
     public void testQueriesDifferentProvider_Filters() throws Exception {
         final AppsFilter appsFilter =