Add ability to update nodelists

NodeInstance.py

@@ -23,6 +23,10 @@ class NodeInstance(threading.Thread):
     def getname():
         return self.name
 
+    # Update value functions
+    def updatenodelist(node_list):
+        self.node_list = node_list
+
     # Shutdown the thread
     def stop(self):
         self.stop_thread.set()
@@ -71,6 +75,7 @@ class NodeInstance(threading.Thread):
             self.zk.set(self.zkey + '/memfree', str(self.memfree).encode('ascii'))
             self.zk.set(self.zkey + '/cpuload', str(self.cpuload).encode('ascii'))
             print("Free memory: %s | Load: %s" % ( self.memfree, self.cpuload ))
+            print("Node list: %s" % self.node_list)
             print("Active domains: %s" % self.domainlist)
             for x in range(0,50):
                 time.sleep(0.1)

pvcd.py

@@ -59,8 +59,16 @@ if not zk.exists('%s' + mynodestring):
 
 time.sleep(1)
 
+def updatenodes():
+    node_list = zk.get_children('/nodes')
+    print(node_list)
+    for node in node_list:
+        if t_node[node] is None:
+            t_node[node] = NodeInstance.NodeInstance(node, node_list, zk);
+        else:
+            t_node[node].updatenodelist(node_list)
+
 node_list = zk.get_children('/nodes')
-print(node_list)
 
 domain_list = zk.get_children('/domains')
 print(domain_list)
@@ -68,11 +76,6 @@ print(domain_list)
 t_node = dict()
 s_domain = dict()
 
-for node in node_list:
-    t_node[node] = NodeInstance.NodeInstance(node, node_list, zk);
-    if t_node[node].name == myhostname:
-        t_node[node].start()
-
 time.sleep(1)
 
 for domain in domain_list: