uptime neighbor

Main.py

 import netifaces
-
+import time
 from prettytable import PrettyTable
 
 from Interface import Interface
@@ -57,11 +57,15 @@ def add_protocol(protocol_number, protocol_obj):
 
 def list_neighbors():
     global neighbors
-    t = PrettyTable(['Neighbor IP', 'KeepAlive', "Generation ID"])
+    check_time = time.time()
+    t = PrettyTable(['Neighbor IP', 'KeepAlive', "Generation ID", "Uptime"])
     for ip, neighbor in list(neighbors.items()):
         import socket, struct  # TODO atualmente conversao manual de numero para string ip
         ip = socket.inet_ntoa(struct.pack('!L', ip))
-        t.add_row([ip, neighbor.keep_alive_period, neighbor.generation_id])
+        uptime = check_time - neighbor.time_of_last_update
+        uptime = 0 if (uptime < 0) else uptime
+
+        t.add_row([ip, neighbor.keep_alive_period, neighbor.generation_id, time.strftime("%H:%M:%S", time.gmtime(uptime))])
     print(t)
     return str(t)
 

Neighbor.py

 from threading import Timer
+import time
 from utils import KEEP_ALIVE_PERIOD_NO_TIMEOUT, KEEP_ALIVE_PERIOD_TIMEOUT
 from Interface import Interface
 import Main
@@ -10,6 +11,7 @@ class Neighbor:
         self.generation_id = generation_id
         self.neighbor_liveness_timer = None
         self.set_keep_alive_period(keep_alive_period)
+        self.time_of_last_update = time.time()
 
     def set_keep_alive_period(self, keep_alive_period: int):
         self.keep_alive_period = keep_alive_period
@@ -32,6 +34,7 @@ class Neighbor:
                 self.neighbor_liveness_timer.cancel()
             self.neighbor_liveness_timer = Timer(4 * self.keep_alive_period, self.remove)
             self.neighbor_liveness_timer.start()
+            self.time_of_last_update = time.time()
 
     def remove(self):
         print('HELLO TIMER EXPIRED... remove neighbor')