diff --git a/cco/processor/controller.py b/cco/processor/controller.py
index b56a0f3..02341bb 100644
--- a/cco/processor/controller.py
+++ b/cco/processor/controller.py
@@ -18,9 +18,10 @@ def loop(jobname, fct, data, skip=0, limit=None,
                 break
     for row in data:
         r = fct(row)
-        result['count'] += 1
-        if r is not None:
-            result[r] += 1
+        #result['count'] += 1
+        #if r is not None:
+        #    result[r['info']] += 1
+        update_counters(result, r)
         if result['count'] % bsize == 0:
             logger.info('loop %s: %s' % (jobname, result))
             if action is not None:
@@ -31,3 +32,18 @@ def loop(jobname, fct, data, skip=0, limit=None,
         action()
     logger.info('loop %s finished: %s' % (jobname, result))
     return result
+
+def update_counters(result, msg):
+    result['count'] += 1
+    if msg is None:
+        return
+    if isinstance(msg, dict):
+        info = msg.get('info')
+        if info == 'error':
+            result['error'] += 1
+            return
+        key = msg['action'] + 'd'
+        if key in result:
+            result[key] += 1
+    else:
+        result[msg] += 1