Added support for is_ready() on device. This still need some works in some...

Added support for is_ready() on device. This still need some works in some cases for devices without attributes.. but this does the tricks right now

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/branches/0.7@2984 b32b6428-25c9-4566-ad07-03861ab6144f

libs/monitor/xaal/monitor/monitor.py

@@ -39,6 +39,9 @@ class TimedDict(dict):
         self.updated()
         return changed
 
+    def is_ready(self):
+        return True if (self.last_update != 0) else False
+
 
 class Device:
     def __init__(self, addr, dev_type):
@@ -79,6 +82,12 @@ class Device:
             self.db.pop(k)
         return r
 
+    def is_ready(self):
+        if self.attributes.is_ready() and self.description.is_ready():
+        #if self.description.is_ready():
+            return True
+        return False
+
     def alive(self,value):
         self.last_alive = int(time.time())
         self.next_alive = self.last_alive + value