TUI now writes to a string buffer and then to screen

(should be faster, like double buffering and switch)

2 files changed, 13 insertions, 4 deletions

diff --git a/scripts/automation/trex_control_plane/console/trex_console.py b/scripts/automation/trex_control_plane/console/trex_console.py
index a6090832..fe909c09 100755
--- a/scripts/automation/trex_control_plane/console/trex_console.py
+++ b/scripts/automation/trex_control_plane/console/trex_console.py
@@ -498,7 +498,7 @@ class TRexConsole(TRexGeneralCmd):
 
             exe += './trex-console -t -q -s {0} -p {1}'.format(self.stateless_client.get_server_ip(), self.stateless_client.get_server_port())
 
-            cmd = ['xterm', '-geometry', '111x42', '-title', 'trex_tui', '-e', exe]
+            cmd = ['xterm', '-geometry', '111x42', '-sl', '0', '-title', 'trex_tui', '-e', exe]
             subprocess.Popen(cmd)
 
             return
diff --git a/scripts/automation/trex_control_plane/console/trex_tui.py b/scripts/automation/trex_control_plane/console/trex_tui.py
index c2048c9d..dbbac02b 100644
--- a/scripts/automation/trex_control_plane/console/trex_tui.py
+++ b/scripts/automation/trex_control_plane/console/trex_tui.py
@@ -7,6 +7,7 @@ from common import trex_stats
 from client_utils import text_tables
 from collections import OrderedDict
 import datetime
+from cStringIO import StringIO
 
 class SimpleBar(object):
     def __init__ (self, desc, pattern):
@@ -322,8 +323,7 @@ class TrexTUIPanelManager():
 
         if self.show_log:
             self.log.show()
-
-        sys.stdout.flush()
+        
 
     def handle_key (self, ch):
         # check for the manager registered actions
@@ -459,8 +459,17 @@ class TrexTUI():
     def draw_screen (self, force_draw = False):
 
         if (self.draw_policer >= 5) or (force_draw):
-            self.clear_screen()
+
+            # capture stdout to a string
+            old_stdout = sys.stdout
+            sys.stdout = mystdout = StringIO()
             self.pm.show()
+            sys.stdout = old_stdout
+
+            self.clear_screen()
+            print mystdout.getvalue()
+            sys.stdout.flush()
+
             self.draw_policer = 0
         else:
             self.draw_policer += 1