from nepi.execution.resource import clsinit_copy, ResourceState, reschedule_delay
from nepi.resources.ns3.ns3application import NS3BaseApplication
+import os
+import threading
+
@clsinit_copy
class NS3BaseDceApplication(NS3BaseApplication):
_rtype = "abstract::ns3::DceApplication"
+ # Lock used to synchronize usage of DceManagerHelper
+ dce_manager_lock = threading.Lock()
+ # Lock used to synchronize usage of DceApplicationHelper
+ dce_application_lock = threading.Lock()
+
+ _dce_manager_helper_uuid = None
+ _dce_application_helper_uuid = None
+
@classmethod
def _register_attributes(cls):
binary = Attribute("binary",
"Semi-colon separated list of arguments for the application",
flags = Flags.Design)
+ environment = Attribute("environment",
+ "Semi-colon separated list of 'key=value' pairs to set as "
+ "DCE environment variables.",
+ flags = Flags.Design)
+
+ starttime = Attribute("StartTime",
+ "Time at which the application will start",
+ default = "+0.0ns",
+ flags = Flags.Reserved | Flags.Construct)
+
+ stoptime = Attribute("StopTime",
+ "Time at which the application will stop",
+ default = "+0.0ns",
+ flags = Flags.Reserved | Flags.Construct)
+
cls._register_attribute(binary)
cls._register_attribute(stack_size)
cls._register_attribute(arguments)
+ cls._register_attribute(environment)
+ cls._register_attribute(stoptime)
+ cls._register_attribute(starttime)
@property
def node(self):
self.error(msg)
raise RuntimeError, msg
- if nodes[0].get("enableDCE") == False:
- raise RuntimeError("DceApplication not connected to DCE enabled node")
-
return nodes[0]
+ @property
+ def dce_manager_helper_uuid(self):
+ if not self._dce_manager_helper_uuid:
+ self._dce_manager_helper_uuid = self.simulation.create("DceManagerHelper")
+ return self._dce_manager_helper_uuid
+
+ @property
+ def dce_application_helper_uuid(self):
+ if not self._dce_application_helper_uuid:
+ self._dce_application_helper_uuid = self.simulation.create("DceApplicationHelper")
+ return self._dce_application_helper_uuid
+
+ def _instantiate_object(self):
+ pass
+
def _connect_object(self):
node = self.node
if node.uuid not in self.connected:
self._connected.add(node.uuid)
- self.simulation.invoke(self.simulation.dce_application_helper_uuid,
- "ResetArguments")
-
- self.simulation.invoke(self.simulation.dce_application_helper_uuid,
- "SetBinary", self.get("binary"))
-
- self.simulation.invoke(self.simulation.dce_application_helper_uuid,
- "SetStackSize", self.get("stackSize"))
- arguments = self.get("arguments") or ""
- for arg in map(str.strip, arguments.split(";")):
- self.simulation.invoke(self.simulation.dce_application_helper_uuid,
- "AddArgument", arg)
-
- apps_uuid = self.simulation.invoke(self.simulation.dce_application_helper_uuid,
- "InstallInNode", self.node.uuid)
-
- #start_time = self.get("StartTime")
- #time_uuid = self.simulation.create("Time", start_time)
- #self.simulation.invoke(apps_uuid, "Start", time_uuid)
+ # Preventing concurrent access to the DceApplicationHelper
+ # from different DceApplication RMs
+ with self.dce_application_lock:
+ self.simulation.invoke(
+ self.dce_application_helper_uuid,
+ "ResetArguments")
+
+ self.simulation.invoke(
+ self.dce_application_helper_uuid,
+ "ResetEnvironment")
+
+ self.simulation.invoke(
+ self.dce_application_helper_uuid,
+ "SetBinary", self.get("binary"))
+
+ self.simulation.invoke(
+ self.dce_application_helper_uuid,
+ "SetStackSize", self.get("stackSize"))
+
+ arguments = self.get("arguments")
+ if arguments:
+ for arg in map(str.strip, arguments.split(";")):
+ self.simulation.invoke(
+ self.dce_application_helper_uuid,
+ "AddArgument", arg)
+
+ environment = self.get("environment")
+ if environment:
+ for env in map(str.strip, environment.split(";")):
+ key, val = env.split("=")
+ self.simulation.invoke(
+ self.dce_application_helper_uuid,
+ "AddEnvironment", key, val)
+
+ apps_uuid = self.simulation.invoke(
+ self.dce_application_helper_uuid,
+ "InstallInNode", self.node.uuid)
+
+ """
+ container_uuid = self.simulation.create("NodeContainer")
+ self.simulation.invoke(container_uuid, "Add", self.node.uuid)
+ apps_uuid = self.simulation.invoke(
+ self.dce_application_helper_uuid,
+ "Install", container_uuid)
+ """
+
+ self._uuid = self.simulation.invoke(apps_uuid, "Get", 0)
+
+ if self.has_changed("StartTime"):
+ self.simulation.ns3_set(self.uuid, "StartTime", self.get("StartTime"))
+
+ if self.has_changed("StopTime"):
+ self.simulation.ns3_set(self.uuid, "StopTime", self.get("StopTime"))
def do_stop(self):
if self.state == ResourceState.STARTED:
self.debug("---- RESCHEDULING START ----" )
self.ec.schedule(reschedule_delay, self.start)
else:
+ self._configure_traces()
super(NS3BaseApplication, self).do_start()
self._start_time = self.simulation.start_time
+ def _configure_traces(self):
+ # Preventing concurrent access to the DceApplicationHelper
+ # from different DceApplication RMs
+ with self.dce_application_lock:
+ pid = self.simulation.invoke(self.dce_application_helper_uuid,
+ "GetPid", self.uuid)
+ node_id = self.simulation.invoke(self.node.uuid, "GetId")
+ self._trace_filename["stdout"] = "files-%s/var/log/%s/stdout" % (node_id, pid)
+ self._trace_filename["stderr"] = "files-%s/var/log/%s/stderr" % (node_id, pid)
+ self._trace_filename["status"] = "files-%s/var/log/%s/status" % (node_id, pid)
+ self._trace_filename["cmdline"] = "files-%s/var/log/%s/cmdline" % (node_id, pid)
+
+