Merge remote-tracking branch 'lp-Com/use-monotonic' into 7.0

* lp-Com/use-monotonic:
  VxWorks: Measure CPU time-base frequency if necessary
  replace most internal getCurrent() -> getMonotonic()
  dbScan periodic scan use monotonic time
  monotonic adapt to regular time APIs

modules/libcom/src/osi/epicsTime.cpp

@@ -215,6 +215,13 @@ epicsTime epicsTime::getCurrent ()
     return epicsTime ( current );
 }
 
+epicsTime epicsTime::getMonotonic()
+{
+    epicsTimeStamp current;
+    epicsTimeGetMonotonic (&current); // can't fail
+    return epicsTime ( current );
+}
+
 epicsTime epicsTime::getEvent (const epicsTimeEvent &event)
 {
     epicsTimeStamp current;