Fix: Added gevent monkey patch to fix issue that blocks

[osm/vim-emu.git] / src / emuvim / dcemulator / net.py

diff --git a/src/emuvim/dcemulator/net.py b/src/emuvim/dcemulator/net.py
index 1bbc5bf..58c2bff 100755 (executable)
--- a/src/emuvim/dcemulator/net.py
+++ b/src/emuvim/dcemulator/net.py
@@ -24,24 +24,27 @@
 # acknowledge the contributions of their colleagues of the SONATA
 # partner consortium (www.sonata-nfv.eu).
 import logging
-
 import time
-from subprocess import Popen
 import re
 import requests
 import os
 import json
-
+import networkx as nx
+from subprocess import Popen
+from gevent import monkey
 from mininet.net import Containernet
 from mininet.node import OVSSwitch, OVSKernelSwitch, Docker, RemoteController
 from mininet.cli import CLI
 from mininet.link import TCLink
 from mininet.clean import cleanup
-import networkx as nx
 from emuvim.dcemulator.monitoring import DCNetworkMonitor
 from emuvim.dcemulator.node import Datacenter, EmulatorCompute
 from emuvim.dcemulator.resourcemodel import ResourceModelRegistrar
 
+# ensure correct functionality of all gevent based REST servers
+monkey.patch_all(sys=True)
+
+# setup logging
 LOG = logging.getLogger("dcemulator.net")
 LOG.setLevel(logging.DEBUG)
 
@@ -759,6 +762,7 @@ class DCNetwork(Containernet):
         cmd = kwargs.get('cmd')
         path = kwargs.get('path')
         index = kwargs.get('pathindex')
+        mod_dl_dst = kwargs.get('mod_dl_dst')
 
         vlan = kwargs.get('vlan')
         priority = kwargs.get('priority', DEFAULT_PRIORITY)
@@ -826,6 +830,12 @@ class DCNetwork(Containernet):
 
                 else:  # middle nodes
                     match += ',dl_vlan=%s' % vlan
+            if mod_dl_dst:
+                action = {}
+                action['type'] = 'SET_FIELD'
+                action['field'] = 'eth_dst'
+                action['value'] = mod_dl_dst
+                flow['actions'].append(action)
 
             # output action must come last
             action = {}
@@ -939,6 +949,8 @@ class DCNetwork(Containernet):
             url = self.ryu_REST_api + '/' + str(prefix) + '/' + str(dpid)
         else:
             url = self.ryu_REST_api + '/' + str(prefix)
+
+        LOG.debug('sending RYU command: %s, payload: %s', url, data)
         if data:
             req = self.RyuSession.post(url, json=data)
         else:
@@ -946,7 +958,7 @@ class DCNetwork(Containernet):
 
         # do extra logging if status code is not 200 (OK)
         if req.status_code is not requests.codes.ok:
-            logging.info(
+            LOG.info(
                 'type {0}  encoding: {1} text: {2} headers: {3} history: {4}'.format(req.headers['content-type'],
                                                                                      req.encoding, req.text,
                                                                                      req.headers, req.history))