commit 2f944482ece3aba2068ac71cd9c5067e4bc8424c
author John Reck <jreck@google.com> Mon Mar 27 14:34:28 2017 -0700
committer John Reck <jreck@google.com> Mon Mar 27 21:38:09 2017 +0000
tree 1a603ac13c0fadc45b630348de25691ca6f7bd67
parent 48a153e57032fccf9ea7dac728d60738c3c848d2

Add missing assert that task isn't queued

Probably won't fix anything but this assert is in queue()
but not queueAtFront() and inserting a task twice is Really Bad.

Bug: 36139852
Test:  ¯\_(ツ)_/¯
Change-Id: Ida0f829eecfdd46c17c36b816528c49d12b7cf29

libs/hwui/renderthread/RenderThread.cpp

diff --git a/libs/hwui/renderthread/RenderThread.cpp b/libs/hwui/renderthread/RenderThread.cpp
index e32fd63..1450ec9 100644
--- a/libs/hwui/renderthread/RenderThread.cpp
+++ b/libs/hwui/renderthread/RenderThread.cpp
@@ -98,6 +98,7 @@
 }
 
 void TaskQueue::queueAtFront(RenderTask* task) {
+    LOG_ALWAYS_FATAL_IF(task->mNext || mHead == task, "Task is already in the queue!");
     if (mTail) {
         task->mNext = mHead;
         mHead = task;