Fix engine getting stuck because of optimizations

At -O1+ in both Gcc and Clang, PacketPoolWait would optimize the
wait loop in the wrong way. Adding a compiler barrier to prevent
this optimization issue.

diff --git a/src/tmqh-packetpool.c b/src/tmqh-packetpool.c
index 1f7f5bd248c09981ea484569ea530c7c9ec6dc63..1f0a3ec7b94b0b0de3fbb38c05ba8f5164d89a62 100644 (file)
--- a/src/tmqh-packetpool.c
+++ b/src/tmqh-packetpool.c
@@ -151,7 +151,7 @@ void PacketPoolWait(void)
     PktPool *my_pool = GetThreadPacketPool();
 
     while(PacketPoolIsEmpty(my_pool))
-        ;
+        cc_barrier();
 }
 
 /** \brief a initialized packet