c11 safe string handling support

[vpp.git] / src / vppinfra / elog.c

diff --git a/src/vppinfra/elog.c b/src/vppinfra/elog.c
index 12e3f5d..8e3f6c1 100644 (file)
--- a/src/vppinfra/elog.c
+++ b/src/vppinfra/elog.c
@@ -46,7 +46,7 @@ static inline void
 elog_lock (elog_main_t * em)
 {
   if (PREDICT_FALSE (em->lock != 0))
-    while (__sync_lock_test_and_set (em->lock, 1))
+    while (clib_atomic_test_and_set (em->lock))
       ;
 }
 
@@ -108,6 +108,13 @@ elog_event_type_register (elog_main_t * em, elog_event_type_t * t)
 
   elog_lock (em);
 
+  /* Multiple simultaneous registration attempts, */
+  if (t->type_index_plus_one > 0)
+    {
+      elog_unlock (em);
+      return t->type_index_plus_one - 1;
+    }
+
   l = vec_len (em->event_types);
 
   t->type_index_plus_one = 1 + l;
@@ -406,7 +413,11 @@ elog_time_now (elog_time_stamp_t * et)
 #ifdef CLIB_UNIX
   {
 #include <sys/syscall.h>
+#ifdef __APPLE__
+    clock_gettime (CLOCK_REALTIME, &ts);
+#else
     syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts);
+#endif
     cpu_time_now = clib_cpu_time_now ();
     /* Subtract 3/30/2017's worth of seconds to retain precision */
     os_time_now_nsec = 1e9 * (ts.tv_sec - 1490885108) + ts.tv_nsec;
@@ -458,7 +469,7 @@ elog_alloc (elog_main_t * em, u32 n_events)
 void
 elog_init (elog_main_t * em, u32 n_events)
 {
-  memset (em, 0, sizeof (em[0]));
+  clib_memset (em, 0, sizeof (em[0]));
 
   em->lock = 0;
 
@@ -625,7 +636,7 @@ elog_merge (elog_main_t * dst, u8 * dst_tag, elog_main_t * src, u8 * src_tag,
   elog_track_t newt;
   int i;
 
-  memset (&newt, 0, sizeof (newt));
+  clib_memset (&newt, 0, sizeof (newt));
 
   /* Acquire src and dst events */
   elog_get_events (src);
@@ -725,7 +736,7 @@ elog_merge (elog_main_t * dst, u8 * dst_tag, elog_main_t * src, u8 * src_tag,
 
     /*
      * Move the earlier set of events later, to avoid creating
-     * events which preceed the Big Bang (aka have negative timestamps).
+     * events which precede the Big Bang (aka have negative timestamps).
      *
      * Not to any scale, we have something like the following picture:
      *