bitbake: lib/bb/ui/uihelper: indicate to caller of eventHandler() if events handled

It is useful for the caller to know whether the uihelper has handled the
event passed so that it can skip other event handling code if so.

(Bitbake rev: be498abfbbb19bdd31e5b53713a74049007e3737)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/uihelper.py

@@ -61,6 +61,9 @@ class BBUIHelper:
                 self.running_tasks[event.pid]['progress'] = event.progress
                 self.running_tasks[event.pid]['rate'] = event.rate
                 self.needUpdate = True
+        else:
+            return False
+        return True
 
     def getTasks(self):
         self.needUpdate = False