move ifupdown2/* .

ifupdown2 code was one level deeper because ifupdown2 initially
had ifupdown2 and ifupdown2-addons as two separate packages.
Since they were combined into one package, it makes sense to
move all combined code under the top level directory

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>

tests/ifstatetest

@@ -0,0 +1,56 @@
+#!/usr/bin/python
+
+""" test for testing and profiling state manager """
+
+import cProfile
+
+from ifupdown.networkinterfaces import *
+from ifupdown.iface import *
+from ifupdown.statemanager import pickling
+import os
+
+ifaceobjdict = {}
+state_file = '/tmp/ifstatetest'
+
+def save_iface(ifaceobj):
+    ifaceobjdict[ifaceobj.get_name()] = ifaceobj
+    
+def read_default_iface_config():
+    """ Reads default network interface config /etc/network/interfaces. """
+    nifaces = networkInterfaces()
+    nifaces.subscribe('iface_found', save_iface)
+    nifaces.load()
+
+def save_state():
+    try:
+        with open(state_file, 'w') as f:
+            for ifaceobj in ifaceobjdict.values():
+                pickling.save_obj(f, ifaceobj)
+    except:
+        raise
+
+def load_state():
+    global ifaceobjdict
+
+    if not os.path.exists(state_file):
+        return
+
+    del ifaceobjdict
+    ifaceobjdict = {}
+
+    # Read all ifaces from file
+    for ifaceobj in pickling.load(state_file):
+        save_iface(ifaceobj)
+
+
+print 'Reading iface config files ..'
+cProfile.run('read_default_iface_config()')
+print 'number of objects: %d' %len(ifaceobjdict)
+
+print 'saving iface state ..'
+cProfile.run('save_state()')
+
+print 'loading iface state ..'
+cProfile.run('load_state()')
+print 'number of objects: %d' %len(ifaceobjdict)
+