commit 8fd75428b409ad926e54178ec0dcd47012255d2c
author Wale Ogunwale <ogunwale@google.com> Fri Jun 24 14:20:37 2016 -0700
committer Wale Ogunwale <ogunwale@google.com> Mon Jun 27 07:16:45 2016 -0700
tree 0a3b30b27d72728a274f8df1ea8135c008c96c5b
parent 90b2c781ff02986f7fe495370c16d67ccd614055

Reset relaunching count is app dies during re-launch

WindowManager keeps a count of how many relaunches an app is told
to do so that it can defer app transtions until the relaunches are
done. If the app porcess is killed during one of the relaunches
the app will never report back that it is done relaunching, so
app transtions into the app will not happen until will timeout
from waiting for the app.
We now notify WM of this situation so it can clear the relaunching
count for the app.

Bug: 29551109
Change-Id: Ibadba9f73e6e1bde141385aa8a0e066fbc0c5764

services/core/java/com/android/server/am/ActivityStack.java

diff --git a/services/core/java/com/android/server/am/ActivityStack.java b/services/core/java/com/android/server/am/ActivityStack.java
index 4059a67..8fb10fd 100644
--- a/services/core/java/com/android/server/am/ActivityStack.java
+++ b/services/core/java/com/android/server/am/ActivityStack.java
@@ -3759,6 +3759,10 @@
         if (getVisibleBehindActivity() == r) {
             mStackSupervisor.requestVisibleBehindLocked(r, false);
         }
+
+        // Clean-up activities are no longer relaunching (e.g. app process died). Notify window
+        // manager so it can update its bookkeeping.
+        mWindowManager.notifyAppRelaunchesCleared(r.appToken);
     }
 
     private void removeTimeoutsForActivityLocked(ActivityRecord r) {

services/core/java/com/android/server/wm/AppWindowToken.java

diff --git a/services/core/java/com/android/server/wm/AppWindowToken.java b/services/core/java/com/android/server/wm/AppWindowToken.java
index b907da6..531146e 100644
--- a/services/core/java/com/android/server/wm/AppWindowToken.java
+++ b/services/core/java/com/android/server/wm/AppWindowToken.java
@@ -625,6 +625,13 @@
         }
     }
 
+    void clearRelaunching() {
+        if (canFreezeBounds()) {
+            unfreezeBounds();
+        }
+        mPendingRelaunchCount = 0;
+    }
+
     void addWindow(WindowState w) {
         for (int i = allAppWindows.size() - 1; i >= 0; i--) {
             WindowState candidate = allAppWindows.get(i);

services/core/java/com/android/server/wm/WindowManagerService.java

diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 54960a4..fc0e530 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -10206,6 +10206,15 @@
         }
     }
 
+    public void notifyAppRelaunchesCleared(IBinder token) {
+        synchronized (mWindowMap) {
+            final AppWindowToken appWindow = findAppWindowToken(token);
+            if (appWindow != null) {
+                appWindow.clearRelaunching();
+            }
+        }
+    }
+
     @Override
     public int getDockedDividerInsetsLw() {
         return getDefaultDisplayContentLocked().getDockedDividerController().getContentInsets();