Index: leahi_dialin/ui/utils.py
===================================================================
diff -u -r9d36fd7bbc0b883dab1140a7377f75fdca70e474 -r9f44c02ff3f40812ab9fd7f9c7346f649a114c19
--- leahi_dialin/ui/utils.py	(.../utils.py)	(revision 9d36fd7bbc0b883dab1140a7377f75fdca70e474)
+++ leahi_dialin/ui/utils.py	(.../utils.py)	(revision 9f44c02ff3f40812ab9fd7f9c7346f649a114c19)
@@ -18,7 +18,22 @@
 import struct
 from subprocess import check_output
 
+def singleton(cls):
+    """
+    This is a singleton decorator
+    Returns:
+        cls: as for defintion of the singleton, it created the class instance once and will return on each access, instead of the recreation.
+    """
+    instances = {}
 
+    def get_instance(*args, **kwargs):
+        if cls not in instances:
+            instances[cls] = cls(*args, **kwargs)
+        return instances[cls]
+
+    return get_instance
+
+
 def srsui(vstr=""):
     """
     for user convenience if wanted to put a note for the SRSUI