Remove AppWindowTokens from exiting apps with task
When the task is removed from a task stack in window manager any
exiting activities left in the stack were orphaned. This led to a
memory leak. Removing all task activities from those that are exiting
fixes this problem.
Fixes bug 18943737.
Change-Id: I0a5ea8d2d3be89af7ccaf01385a226a2eafdf507
diff --git a/services/core/java/com/android/server/wm/AppWindowToken.java b/services/core/java/com/android/server/wm/AppWindowToken.java
index f859fd2..da25c53 100644
--- a/services/core/java/com/android/server/wm/AppWindowToken.java
+++ b/services/core/java/com/android/server/wm/AppWindowToken.java
@@ -304,10 +304,11 @@
pw.print(prefix); pw.print("inPendingTransaction=");
pw.println(inPendingTransaction);
}
- if (startingData != null || removed || firstWindowDrawn) {
+ if (startingData != null || removed || firstWindowDrawn || mDeferRemoval) {
pw.print(prefix); pw.print("startingData="); pw.print(startingData);
pw.print(" removed="); pw.print(removed);
- pw.print(" firstWindowDrawn="); pw.println(firstWindowDrawn);
+ pw.print(" firstWindowDrawn="); pw.print(firstWindowDrawn);
+ pw.print(" mDeferRemoval="); pw.println(mDeferRemoval);
}
if (startingWindow != null || startingView != null
|| startingDisplayed || startingMoved) {
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index a60be3b..b49b87c 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -68,6 +68,6 @@
@Override
public String toString() {
- return "{taskId=" + taskId + " appTokens=" + mAppTokens + "}";
+ return "{taskId=" + taskId + " appTokens=" + mAppTokens + " mdr=" + mDeferRemoval + "}";
}
}
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 2750941..4d0169d 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -5200,8 +5200,17 @@
if (DEBUG_STACK) Slog.i(TAG, "removeTask: removing taskId=" + taskId);
EventLog.writeEvent(EventLogTags.WM_TASK_REMOVED, taskId, "removeTask");
task.mDeferRemoval = false;
- task.mStack.removeTask(task);
+ stack.removeTask(task);
mTaskIdToTask.delete(task.taskId);
+
+ final ArrayList<AppWindowToken> exitingApps = stack.mExitingAppTokens;
+ for (int appNdx = exitingApps.size() - 1; appNdx >= 0; --appNdx) {
+ final AppWindowToken wtoken = exitingApps.get(appNdx);
+ if (wtoken.groupId == taskId) {
+ wtoken.mDeferRemoval = false;
+ exitingApps.remove(appNdx);
+ }
+ }
}
public void removeTask(int taskId) {