--- libaitsched/inc/defs.h	2014/06/05 22:37:29	1.14
+++ libaitsched/inc/defs.h	2015/07/22 19:50:45	1.16
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: defs.h,v 1.14 2014/06/05 22:37:29 misho Exp $
+* $Id: defs.h,v 1.16 2015/07/22 19:50:45 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -12,7 +12,7 @@ terms:
 All of the documentation and software included in the ELWIX and AITNET
 Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
 
-Copyright 2004 - 2014
+Copyright 2004 - 2015
 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
@@ -94,6 +94,7 @@ SUCH DAMAGE.
 #define pthread_mutex_unlock(x)
 #endif
 
+#define SCHED_QTRYLOCK(r, x)		pthread_mutex_trylock(&(r)->root_mtx[(x)])
 #define SCHED_QLOCK(r, x)		pthread_mutex_lock(&(r)->root_mtx[(x)])
 #define SCHED_QUNLOCK(r, x)		pthread_mutex_unlock(&(r)->root_mtx[(x)])