Always restart apps if base.apk gets updated.

Bug: 219044664
Fixes: 219044664
Test: atest PackageManagerShellCommandTest
Change-Id: I27a0c5009b2d5f1ea51618b9acfa1e6ccee71296
Merged-In: I27a0c5009b2d5f1ea51618b9acfa1e6ccee71296

3 files changed, 24 insertions, 0 deletions

diff --git a/core/java/android/content/pm/IPackageInstallerSession.aidl b/core/java/android/content/pm/IPackageInstallerSession.aidl
index 04e15c7957bd..b26a2403ba38 100644
--- a/core/java/android/content/pm/IPackageInstallerSession.aidl
+++ b/core/java/android/content/pm/IPackageInstallerSession.aidl
@@ -46,4 +46,5 @@ interface IPackageInstallerSession {
     int getParentSessionId();
 
     boolean isStaged();
+    int getInstallFlags();
 }
diff --git a/core/java/android/content/pm/PackageInstaller.java b/core/java/android/content/pm/PackageInstaller.java
index 44842c62a3c8..b44b6d90811e 100644
--- a/core/java/android/content/pm/PackageInstaller.java
+++ b/core/java/android/content/pm/PackageInstaller.java
@@ -1176,6 +1176,18 @@ public class PackageInstaller {
         }
 
         /**
+         * @return Session's {@link SessionParams#installFlags}.
+         * @hide
+         */
+        public int getInstallFlags() {
+            try {
+                return mSession.getInstallFlags();
+            } catch (RemoteException e) {
+                throw e.rethrowFromSystemServer();
+            }
+        }
+
+        /**
          * @return the session ID of the multi-package session that this belongs to or
          * {@link SessionInfo#INVALID_ID} if it does not belong to a multi-package session.
          */
diff --git a/services/core/java/com/android/server/pm/PackageInstallerSession.java b/services/core/java/com/android/server/pm/PackageInstallerSession.java
index f5fc13acf6f0..413ee3256f0a 100644
--- a/services/core/java/com/android/server/pm/PackageInstallerSession.java
+++ b/services/core/java/com/android/server/pm/PackageInstallerSession.java
@@ -91,6 +91,7 @@ import android.system.OsConstants;
 import android.system.StructStat;
 import android.text.TextUtils;
 import android.util.ArraySet;
+import android.util.EventLog;
 import android.util.ExceptionUtils;
 import android.util.MathUtils;
 import android.util.Slog;
@@ -1711,6 +1712,11 @@ public class PackageInstallerSession extends IPackageInstallerSession.Stub {
                     resolveInheritedFile(baseDexMetadataFile);
                 }
                 baseApk = existingBase;
+            } else if ((params.installFlags & PackageManager.INSTALL_DONT_KILL_APP) != 0) {
+                EventLog.writeEvent(0x534e4554, "219044664");
+
+                // Installing base.apk. Make sure the app is restarted.
+                params.setDontKillApp(false);
             }
 
             // Inherit splits if not overridden
@@ -2143,6 +2149,11 @@ public class PackageInstallerSession extends IPackageInstallerSession.Stub {
     }
 
     @Override
+    public int getInstallFlags() {
+        return params.installFlags;
+    }
+
+    @Override
     public int[] getChildSessionIds() {
         final int[] childSessionIds = mChildSessionIds.copyKeys();
         if (childSessionIds != null) {