--- /dev/null
+#
+# NEPI, a framework to manage network experiments
+# Copyright (C) 2014 INRIA
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation;
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# Author: Alina Quereilhac <alina.quereilhac@inria.fr>
+
+from nepi.execution.resource import ResourceManager, clsinit_copy, \
+ ResourceState
+from nepi.execution.attribute import Flags
+from nepi.execution.trace import TraceAttr
+
+@clsinit_copy
+class NS3Base(ResourceManager):
+ _rtype = "abstract::ns3::Object"
+ _platform = "ns3"
+
+ def __init__(self, ec, guid):
+ super(NS3Base, self).__init__(ec, guid)
+ self._uuid = None
+ self._connected = set()
+ self._trace_filename = dict()
+ self._node = None
+
+ @property
+ def connected(self):
+ return self._connected
+
+ @property
+ def uuid(self):
+ return self._uuid
+
+ @property
+ def simulation(self):
+ return self.node.simulation
+
+ @property
+ def node(self):
+ if not self._node:
+ from nepi.resources.ns3.ns3node import NS3BaseNode
+ nodes = self.get_connected(NS3BaseNode.get_rtype())
+ if nodes: self._node = nodes[0]
+
+ return self._node
+
+ def trace(self, name, attr = TraceAttr.ALL, block = 512, offset = 0):
+ filename = self._trace_filename.get(name)
+ if not filename:
+ self.error("Can not resolve trace %s. Did you enabled it?" % name)
+ return ""
+
+ return self.simulation.trace(filename, attr, block, offset)
+
+ @property
+ def _rms_to_wait(self):
+ """ Returns the collection of ns-3 RMs that this RM needs to
+ wait for before start
+
+ This method should be overriden to wait for other ns-3
+ objects to be deployed before proceeding with the deployment
+
+ """
+ rms = set()
+ node = self.node
+ if node: rms.add(node)
+ return rms
+
+ def _instantiate_object(self):
+ if self.uuid:
+ return
+
+ kwargs = dict()
+ for attr in self._attrs.values():
+ if not ( attr.has_flag(Flags.Construct) and attr.has_changed ):
+ continue
+
+ kwargs[attr.name] = attr._value
+
+ self._uuid = self.simulation.factory(self.get_rtype(), **kwargs)
+
+ def _configure_object(self):
+ pass
+
+ def _connect_object(self):
+ node = self.node
+ if node and node.uuid not in self.connected:
+ self.simulation.invoke(node.uuid, "AggregateObject", self.uuid)
+ self._connected.add(node.uuid)
+
+ def _wait_rms(self):
+ """ Returns True if dependent RMs are not yer READY, False otherwise"""
+ for rm in self._rms_to_wait:
+ if rm.state < ResourceState.READY:
+ return True
+ return False
+
+ def do_provision(self):
+ self._instantiate_object()
+ self._connect_object()
+ self._configure_object()
+
+ self.info("Provisioning finished")
+
+ super(NS3Base, self).do_provision()
+
+ def do_deploy(self):
+ if self._wait_rms():
+ self.debug("---- RESCHEDULING DEPLOY ----" )
+ self.ec.schedule(self.reschedule_delay, self.deploy)
+ else:
+ self.do_discover()
+ self.do_provision()
+
+ self.set_ready()
+
+ def do_start(self):
+ if self.state == ResourceState.READY:
+ # No need to do anything, simulation.Run() will start every object
+ self.info("Starting")
+ self.set_started()
+ else:
+ msg = "Failed"
+ self.error(msg, out, err)
+ raise RuntimeError(msg)
+
+ def do_stop(self):
+ if self.state == ResourceState.STARTED:
+ # No need to do anything, simulation.Destroy() will stop every object
+ self.info("Stopping")
+ self.set_stopped()
+
+ @property
+ def state(self):
+ return self._state
+
+ def get(self, name):
+ if self.state in [ResourceState.READY, ResourceState.STARTED] and \
+ self.has_flag(name, Flags.Reserved) and \
+ not self.has_flag(name, Flags.NoRead):
+ return self.simulation.ns3_get(self.uuid, name)
+ else:
+ value = super(NS3Base, self).get(name)
+
+ return value
+
+ def set(self, name, value):
+ if self.state in [ResourceState.READY, ResourceState.STARTED] and \
+ self.has_flag(name, Flags.Reserved) and \
+ not (self.has_flag(Flags.NoWrite) or self.has_flag(name, Flags.Design)):
+ self.simulation.ns3_set(self.uuid, name, value)
+
+ value = super(NS3Base, self).set(name, value)
+
+ return value
+
git://git.onelab.eu / nepi.git / blobdiff