Index: trunk/Ohana/src/opihi/include/pclient.h
===================================================================
--- trunk/Ohana/src/opihi/include/pclient.h	(revision 3187)
+++ trunk/Ohana/src/opihi/include/pclient.h	(revision 3211)
@@ -74,2 +74,4 @@
 int CheckChild ();
 void CheckChildStatus ();
+
+# define DTIME(A,B) ((A.tv_sec - B.tv_sec) + 1e-6*(A.tv_usec - B.tv_usec))