* don't make OPAL_EVLOOP_ONELOOP spin hard, which was causing some latency

issues Gleb saw

This commit was SVN r11169.

opal/event/event.c

@@ -604,10 +604,9 @@ opal_event_base_loop(struct event_base *base, int flags)
 
 		if (base->event_count_active) {
 			opal_event_process_active(base);
-			if (!base->event_count_active && (flags & OPAL_EVLOOP_ONCE))
+			if (!base->event_count_active && (flags & (OPAL_EVLOOP_ONCE|OPAL_EVLOOP_ONELOOP)))
 				done = 1;
-		} else if ((flags & OPAL_EVLOOP_NONBLOCK) ||
-                           (flags & OPAL_EVLOOP_ONELOOP))
+		} else if (flags & (OPAL_EVLOOP_NONBLOCK|OPAL_EVLOOP_ONELOOP))
 			done = 1;
 	}
 

opal/event/event.h

@@ -176,9 +176,7 @@ int opal_event_base_set(struct event_base *, struct opal_event *);
 
 #define OPAL_EVLOOP_ONCE	0x01
 #define OPAL_EVLOOP_NONBLOCK	0x02
-    /* run once through the loop, but do have the default timeout.
-       Need to be both something special *AND* EVLOOP_ONCE */
-#define OPAL_EVLOOP_ONELOOP     0x03
+#define OPAL_EVLOOP_ONELOOP     0x04
 
 OMPI_DECLSPEC int opal_event_loop(int);
 int opal_event_base_loop(struct event_base *, int);