Yet another PEP 8 :)

gns3server/old_modules/dynamips/nios/nio_mcast.py

@@ -0,0 +1,108 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2013 GNS3 Technologies Inc.
+#
+# 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 <http://www.gnu.org/licenses/>.
+
+"""
+Interface for multicast NIOs.
+"""
+
+from .nio import NIO
+
+import logging
+log = logging.getLogger(__name__)
+
+
+class NIO_Mcast(NIO):
+
+    """
+    Dynamips Linux Ethernet NIO.
+
+    :param hypervisor: Dynamips hypervisor instance
+    :param group: multicast group to bind
+    :param port: port for binding
+    """
+
+    _instance_count = 0
+
+    def __init__(self, hypervisor, group, port):
+
+        NIO.__init__(self, hypervisor)
+
+        # create an unique ID
+        self._id = NIO_Mcast._instance_count
+        NIO_Mcast._instance_count += 1
+        self._name = 'nio_mcast' + str(self._id)
+        self._group = group
+        self._port = port
+        self._ttl = 1  # default TTL
+
+        self._hypervisor.send("nio create_mcast {name} {mgroup} {mport}".format(name=self._name,
+                                                                                mgroup=group,
+                                                                                mport=port))
+
+        log.info("NIO Multicast {name} created with mgroup={group}, mport={port}".format(name=self._name,
+                                                                                         group=group,
+                                                                                         port=port))
+
+    @classmethod
+    def reset(cls):
+        """
+        Reset the instance count.
+        """
+
+        cls._instance_count = 0
+
+    @property
+    def group(self):
+        """
+        Returns the multicast group
+
+        :returns: multicast group address
+        """
+
+        return self._group
+
+    @property
+    def port(self):
+        """
+        Returns the port
+
+        :returns: port number
+        """
+
+        return self._port
+
+    @property
+    def ttl(self):
+        """
+        Returns the TTL associated with the multicast address.
+
+        :returns: TTL value
+        """
+
+        return self._ttl
+
+    @ttl.setter
+    def ttl(self, ttl):
+        """
+        Sets the TTL for the multicast address
+
+        :param ttl: TTL value
+        """
+
+        self._hypervisor.send("nio set_mcast_ttl {name} {ttl}".format(name=self._name,
+                                                                      ttl=ttl))
+        self._ttl = ttl