knotty: Reduce refresh of footer

When displaying larger number of events the client can get caught up in displaying
the footer, then immediately overwriting it. To avoid this, wait for pauses
in the event stream before displaying the footer to give a slightly more
friendly feel to the UI.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/lib/bb/ui/knotty.py b/lib/bb/ui/knotty.py
index 1692e3295c8001d578fa65c0f9bfa498d12dcf70..45200460b1421a1abb0e4be3928344b9ca269e29 100644 (file)
--- a/lib/bb/ui/knotty.py
+++ b/lib/bb/ui/knotty.py
@@ -306,8 +306,10 @@ def main(server, eventHandler, params, tf = TerminalFilter):
 
     while True:
         try:
-            termfilter.updateFooter()
-            event = eventHandler.waitEvent(0.25)
+            event = eventHandler.waitEvent(0)
+            if event is None:
+                termfilter.updateFooter()
+                event = eventHandler.waitEvent(0.25)
             if event is None:
                 if main.shutdown > 1:
                     break