fix registration of Timeline Events in the TimelineSvc

GaudiHive/src/TimelineSvc.cpp

@@ -59,8 +59,22 @@ StatusCode TimelineSvc::finalize()
 
 void TimelineSvc::registerTimelineEvent( const TimelineEvent& e )
 {
+  // if event exists refresh/augment its fields
+  bool eventExists = false;
+  for ( auto& candidate : m_events ) {
+    if ( candidate.algorithm == e.algorithm && candidate.event == e.event ) {
+      candidate.start  = e.start;
+      candidate.end    = e.end;
+      candidate.slot   = e.slot;
+      candidate.thread = e.thread;
+
+      eventExists = true;
+      break;
+    }
+  }
 
-  m_events.push_back( e );
+  // register new event if not found in the previous step
+  if ( !eventExists ) m_events.push_back( e );
 
   if ( m_partial ) {
     std::ofstream out( m_timelineFile + ".part", std::ofstream::app | std::ofstream::out );

GaudiKernel/src/Lib/Algorithm.cpp

@@ -598,7 +598,11 @@ StatusCode Algorithm::sysExecute( const EventContext& ctx )
     status = exceptionSvc()->handle( *this );
   }
 
-  if ( UNLIKELY( m_doTimeline ) ) timeline.end = Clock::now();
+  if ( UNLIKELY( m_doTimeline ) ) {
+    timeline.end = Clock::now();
+    // finalize already registered event with algorithm completion time point
+    timelineSvc()->registerTimelineEvent( timeline );
+  }
 
   if ( status.isFailure() ) {
     // Increment the error count