self._uuid = None
self._connected = set()
self._trace_filename = dict()
+ self._node = None
@property
def connected(self):
@property
def node(self):
- from nepi.resources.ns3.ns3node import NS3BaseNode
- nodes = self.get_connected(NS3BaseNode.get_rtype())
- if nodes: return nodes[0]
- return None
+ if not self._node:
+ from nepi.resources.ns3.ns3node import NS3BaseNode
+ nodes = self.get_connected(NS3BaseNode.get_rtype())
+ if nodes: self._node = nodes[0]
+
+ return self._node
def trace(self, name, attr = TraceAttr.ALL, block = 512, offset = 0):
filename = self._trace_filename.get(name)
kwargs = dict()
for attr in self._attrs.values():
- if not ( attr.has_flag(Flags.Construct) and attr.has_changed() ):
+ if not ( attr.has_flag(Flags.Construct) and attr.has_changed ):
continue
kwargs[attr.name] = attr._value