Improve main-loop event-logs

Change-Id: I984debeffe0dce36c9e7ab963f25d862cc7550cc
Signed-off-by: Dave Barach <dave@barachs.net>

2 files changed, 29 insertions, 3 deletions

diff --git a/vppinfra/vppinfra/elog.c b/vppinfra/vppinfra/elog.c
index 3c327481..222c55fd 100644
--- a/vppinfra/vppinfra/elog.c
+++ b/vppinfra/vppinfra/elog.c
@@ -52,7 +52,10 @@ static inline void elog_lock (elog_main_t * em)
 static inline void elog_unlock (elog_main_t * em)
 {
   if (PREDICT_FALSE(em->lock != 0))
-    *em->lock = 0;
+    {
+      CLIB_MEMORY_BARRIER();
+      *em->lock = 0;
+    }
 }
 
 /* Non-inline version. */
@@ -168,7 +171,6 @@ word elog_event_type_register (elog_main_t * em, elog_event_type_t * t)
   }
 
   new_event_type (em, l);
-  
   elog_unlock(em);
 
   return l;
diff --git a/vppinfra/vppinfra/elog.h b/vppinfra/vppinfra/elog.h
index 8c5482ae..db84c95f 100644
--- a/vppinfra/vppinfra/elog.h
+++ b/vppinfra/vppinfra/elog.h
@@ -273,7 +273,7 @@ elog_event_data_not_inline (elog_main_t * em,
   return elog_event_data (em, type, track, cpu_time);
 }
 
-/* Most common form: log a single 32 bit datum. */
+/* Most common forms: log a single 32 bit datum, w / w-out track */
 always_inline void
 elog (elog_main_t * em, elog_event_type_t * type, u32 data)
 {
@@ -297,6 +297,30 @@ elog_inline (elog_main_t * em, elog_event_type_t * type, u32 data)
   d[0] = data;
 }
 
+always_inline void
+elog_track (elog_main_t * em, elog_event_type_t * type, elog_track_t *track, 
+            u32 data)
+{
+  u32 * d = elog_event_data_not_inline
+    (em,
+     type,
+     track,
+     clib_cpu_time_now ());
+  d[0] = data;
+}
+
+always_inline void
+elog_track_inline (elog_main_t * em, elog_event_type_t * type, 
+                   elog_track_t *track, u32 data)
+{
+  u32 * d = elog_event_data_inline
+    (em,
+     type,
+     track,
+     clib_cpu_time_now ());
+  d[0] = data;
+}
+
 always_inline void *
 elog_data (elog_main_t * em, elog_event_type_t * type, elog_track_t * track)
 {