deliver invalidate messages AFTER other messages

because invalidate messages were always handled first, they
could prevent other messages to get through entirely.
there is no real reason to handle invalidate messages first because
the other messages are very uncommon and won't interfer with
updates.

Change-Id: Ib95cdf35a91407bd2f4d69dd082c5f546e1e0071

1 files changed, 8 insertions, 8 deletions

diff --git a/services/surfaceflinger/MessageQueue.cpp b/services/surfaceflinger/MessageQueue.cpp
index 4fb1e61..aebe1b8 100644
--- a/services/surfaceflinger/MessageQueue.cpp
+++ b/services/surfaceflinger/MessageQueue.cpp
@@ -72,14 +72,6 @@ sp<MessageBase> MessageQueue::waitMessage(nsecs_t timeout)
             nsecs_t now = systemTime();
             nsecs_t nextEventTime = -1;
 
-            // invalidate messages are always handled first
-            if (mInvalidate) {
-                mInvalidate = false;
-                mInvalidateMessage->when = now;
-                result = mInvalidateMessage;
-                break;
-            }
-
             LIST::iterator cur(mMessages.begin());
             if (cur != mMessages.end()) {
                 result = *cur;
@@ -95,6 +87,14 @@ sp<MessageBase> MessageQueue::waitMessage(nsecs_t timeout)
                 result = 0;
             }
 
+            // see if we have an invalidate message
+            if (mInvalidate) {
+                mInvalidate = false;
+                mInvalidateMessage->when = now;
+                result = mInvalidateMessage;
+                break;
+            }
+
             if (timeout >= 0) {
                 if (timeoutTime < now) {
                     // we timed-out, return a NULL message