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.execute.attributes import Flags
24 from nepi.resources.ns3.ns3simulator import NS3Simulator
25 from nepi.resources.ns3.ns3node import NS3BaseNode
28 class NS3Base(ResourceManager):
29 _rtype = "ns3::Object"
32 super(NS3Base, self).__init__()
34 self._connected = set()
38 return self._connected
46 simulators = self.get_connected(NS3Simulator.get_rtype())
47 if simulators: return simulators[0]
48 # if the object is not directly connected to the simulator,
49 # it should be connected to a node
51 if node: return node.simulator
56 nodes = self.get_connected(NS3BaseNode.get_rtype())
57 if nodes: return nodes[0]
61 def others_to_wait(self):
64 if node: others.add(node)
67 def _instantiate_object(self):
72 for attr in self._attrs:
73 if not attr.value or attr.has_flag(Flags.ReadOnly):
76 kwargs[attr.name] = attr.value
78 self.uuid = self.simulator.factory(self.get_rtype(), **kwargs)
80 def _configure_object(self):
83 def _connect_object(self):
85 if node and node.uuid not in self.connected:
86 self.simulator.invoke(node.uuid, "AggregateObject", self.uuid)
87 self._connected.add(node.uuid)
89 def _wait_others(self):
90 """ Returns the collection of ns-3 RMs that this RM needs to
93 This method should be overriden to wait for other ns-3
94 objects to be deployed before proceeding with the deployment
97 for other in self.others_to_wait:
98 if other and other.state < ResourceState.READY:
102 def do_provision(self):
103 # create run dir for ns3 object
104 # self.simulator.node.mkdir(self.run_home)
106 self._instantiate_object()
107 self._configure_object()
108 self._connect_object()
110 self.info("Provisioning finished")
112 super(NS3Base, self).do_provision()
115 if not self.simulator or self.simulator.state < ResourceState.READY or \
117 self.debug("---- RESCHEDULING DEPLOY ----" )
119 # ccnd needs to wait until node is deployed and running
120 self.ec.schedule(reschedule_delay, self.deploy)
122 # TODO: CREATE AND CONFIGURE NS-3 C++ OBJECT
126 self.debug("----- READY ---- ")
130 if self.state == ResourceState.READY:
131 # No need to do anything, simulator.Run() will start every object
132 self.info("Starting")
136 self.error(msg, out, err)
137 raise RuntimeError, msg
140 if self.state == ResourceState.STARTED:
141 # No need to do anything, simulator.Destroy() will stop every object
142 self.info("Stopping command '%s'" % command)