#
# NEPI, a framework to manage network experiments
# Copyright (C) 2013 INRIA
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# 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 .
#
# Author: Alina Quereilhac
from nepi.execution.attribute import Attribute, Flags, Types
from nepi.execution.resource import ResourceManager, clsinit_copy, \
ResourceState, reschedule_delay
from nepi.resources.linux.ccn.ccnpingserver import LinuxCCNPingServer
from nepi.util.timefuncs import tnow, tdiffsec
import os
@clsinit_copy
class LinuxCCNPing(LinuxCCNPingServer):
_rtype = "LinuxCCNPing"
@classmethod
def _register_attributes(cls):
interval = Attribute("i",
"Set ping interval in seconds (minimum 0.10 second) ",
type = Types.Integer,
flags = Flags.Design)
count = Attribute("c",
"Total number of pings",
type = Types.Double,
flags = Flags.Design)
number = Attribute("n",
"Set the starting number, the number is incremented by 1 after each Interest ",
type = Types.Integer,
flags = Flags.Design)
prefix = Attribute("prefix",
"Prefix to serve content (e.g. ccnx:/name/prefix)",
flags = Flags.Design)
cls._register_attribute(interval)
cls._register_attribute(count)
cls._register_attribute(number)
cls._register_attribute(prefix)
def __init__(self, ec, guid):
super(LinuxCCNPing, self).__init__(ec, guid)
self._home = "ccnping-%s" % self.guid
@property
def ccnpingserver(self):
ccnpingserver = self.get_connected(LinuxCCNPingServer.get_rtype())
if ccnpingserver: return ccnpingserver[0]
return None
def do_start(self):
if not self.ccnpingserver or \
self.ccnpingserver.state < ResourceState.STARTED:
self.debug("---- RESCHEDULING START---- ccnpingserver state %s " % \
self.ccnpingserver.state )
self.ec.schedule(reschedule_delay, self.start)
else:
super(LinuxCCNPing, self).do_start()
@property
def _start_command(self):
args = []
args.append("ccnping")
args.append(self.get("prefix"))
if self.get("c"):
args.append("-c %d" % self.get("c"))
if self.get("n"):
args.append("-n %d" % self.get("n"))
if self.get("i"):
args.append("-i %.2f" % self.get("i"))
command = " ".join(args)
return command
def valid_connection(self, guid):
# TODO: Validate!
return True