Skip writing item during shutdown process if the user is locked.

Otherwise the persist thread would keep trying to write that item,
may causing an infinite loop until timeout.

Flag: com.android.window.flags.record_task_snapshots_before_shutdown
Bug: 389571348
Test: run forrest with multi-user environment.
Change-Id: Ifeefbba2aeff3a13790e8366c5ac34cd62b7fea5

parent e4046a28

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

+6 −1

Original line number	Diff line number	Diff line
		@@ -231,8 +231,13 @@ class SnapshotPersistQueue {
		if (next.isReady(mUserManagerInternal)) {
		isReadyToWrite = true;
		next.onDequeuedLocked();
		} else {
		} else if (!mShutdown) {
		mWriteQueue.addLast(next);
		} else {
		// User manager is locked and device is shutting down, skip writing
		// this item.
		next.onDequeuedLocked();
		next = null;
		}
		}
		}