[Commit-gnuradio] r11506 - gnuradio/branches/features/msg-passing/gruel/src/lib/msg

[jcorgan]

Author: jcorgan
Date: 2009-07-27 01:34:52 -0600 (Mon, 27 Jul 2009)
New Revision: 11506

Modified:
   gnuradio/branches/features/msg-passing/gruel/src/lib/msg/msg_queue.cc
Log:
Optimize performance for the common case.


Modified: gnuradio/branches/features/msg-passing/gruel/src/lib/msg/msg_queue.cc
===================================================================
--- gnuradio/branches/features/msg-passing/gruel/src/lib/msg/msg_queue.cc       
2009-07-27 04:36:37 UTC (rev 11505)
+++ gnuradio/branches/features/msg-passing/gruel/src/lib/msg/msg_queue.cc       
2009-07-27 07:34:52 UTC (rev 11506)
@@ -69,7 +69,10 @@
 
     pmt_t m(d_msgs.front());
     d_msgs.pop_front();
-    d_not_full.notify_one();
+
+    if (d_limit > 0)           // Unlimited length queues never block on write
+      d_not_full.notify_one();
+
     return m;
   }
 
@@ -83,8 +86,10 @@
        
     pmt_t m(d_msgs.front());
     d_msgs.pop_front();
-    d_not_full.notify_one();
 
+    if (d_limit > 0)           // Unlimited length queues never block on write
+      d_not_full.notify_one();
+
     return m;
   }