2 # NEPI, a framework to manage network experiments
3 # Copyright (C) 2014 INRIA
5 # This program is free software: you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation, either version 3 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
18 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
20 from nepi.execution.resource import ResourceManager, clsinit_copy, \
21 ResourceState, reschedule_delay
23 from nepi.execution.attribute import Flags
26 class NS3Base(ResourceManager):
27 _rtype = "abstract::ns3::Object"
30 def __init__(self, ec, guid):
31 super(NS3Base, self).__init__(ec, guid)
33 self._connected = set()
37 return self._connected
45 # Ns3 RMs should be connected to the simulator through a ns3 node
47 if node: return node.simulator
52 from nepi.resources.ns3.ns3node import NS3BaseNode
53 nodes = self.get_connected(NS3BaseNode.get_rtype())
54 if nodes: return nodes[0]
58 def others_to_wait(self):
61 if node: others.add(node)
64 def _instantiate_object(self):
69 for attr in self._attrs.values():
70 if not (attr.has_changed() and attr.has_flag(Flags.Construct)):
73 kwargs[attr.name] = attr.value
75 self._uuid = self.simulator.factory(self.get_rtype(), **kwargs)
77 def _configure_object(self):
80 def _connect_object(self):
82 if node and node.uuid not in self.connected:
83 self.simulator.invoke(node.uuid, "AggregateObject", self.uuid)
84 self._connected.add(node.uuid)
86 def _wait_others(self):
87 """ Returns the collection of ns-3 RMs that this RM needs to
90 This method should be overriden to wait for other ns-3
91 objects to be deployed before proceeding with the deployment
94 for other in self.others_to_wait:
95 if other and other.state < ResourceState.READY:
99 def do_provision(self):
100 # create run dir for ns3 object
101 # self.simulator.node.mkdir(self.run_home)
103 self._instantiate_object()
104 self._connect_object()
105 self._configure_object()
107 self.info("Provisioning finished")
109 super(NS3Base, self).do_provision()
112 if not self.simulator or self.simulator.state < ResourceState.READY or \
114 self.debug("---- RESCHEDULING DEPLOY ----" )
116 # ccnd needs to wait until node is deployed and running
117 self.ec.schedule(reschedule_delay, self.deploy)
119 # TODO: CREATE AND CONFIGURE NS-3 C++ OBJECT
123 self.debug("----- READY ---- ")
127 if self.state == ResourceState.READY:
128 # No need to do anything, simulator.Run() will start every object
129 self.info("Starting")
133 self.error(msg, out, err)
134 raise RuntimeError, msg
137 if self.state == ResourceState.STARTED:
138 # No need to do anything, simulator.Destroy() will stop every object
139 self.info("Stopping command '%s'" % command)