Source code for pacman.model.routing_tables.compressed_multicast_routing_table
# Copyright (c) 2014 The University of Manchester
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from pacman.model.routing_tables import AbstractMulticastRoutingTable
from spinn_utilities.overrides import overrides
[docs]class CompressedMulticastRoutingTable(AbstractMulticastRoutingTable):
"""
Represents a compressed routing table for a chip.
"""
__slots__ = [
# The x-coordinate of the chip for which this is the routing table
"_x",
# The y-coordinate of the chip for which this is the routing tables
"_y",
# An iterable of routing entries to add to the table
"_multicast_routing_entries",
# counter of how many entries in their multicast routing table are
# defaultable
"_number_of_defaulted_routing_entries"
]
def __init__(self, x, y, multicast_routing_entries=None):
"""
:param int x:
The x-coordinate of the chip for which this is the routing table
:param int y:
The y-coordinate of the chip for which this is the routing tables
:param multicast_routing_entries:
The routing entries to add to the table
:type multicast_routing_entries:
iterable(~spinn_machine.MulticastRoutingEntry)
:raise pacman.exceptions.PacmanAlreadyExistsException:
If any two routing entries contain the same key-mask combination
"""
self._x = x
self._y = y
self._number_of_defaulted_routing_entries = 0
self._multicast_routing_entries = list()
if multicast_routing_entries is not None:
for multicast_routing_entry in multicast_routing_entries:
self.add_multicast_routing_entry(multicast_routing_entry)
[docs] def add_multicast_routing_entry(self, multicast_routing_entry):
"""
Adds a routing entry to this table.
:param ~spinn_machine.MulticastRoutingEntry multicast_routing_entry:
The route to add
:raise pacman.exceptions.PacmanAlreadyExistsException: If a routing
entry with the same key-mask combination already exists
"""
self._multicast_routing_entries.append(multicast_routing_entry)
# update default routed counter if required
if multicast_routing_entry.defaultable:
self._number_of_defaulted_routing_entries += 1
@property
@overrides(AbstractMulticastRoutingTable.x)
def x(self):
return self._x
@property
@overrides(AbstractMulticastRoutingTable.y)
def y(self):
return self._y
@property
@overrides(AbstractMulticastRoutingTable.multicast_routing_entries)
def multicast_routing_entries(self):
return self._multicast_routing_entries
@property
@overrides(AbstractMulticastRoutingTable.number_of_entries)
def number_of_entries(self):
return len(self._multicast_routing_entries)
@property
@overrides(AbstractMulticastRoutingTable.number_of_defaultable_entries)
def number_of_defaultable_entries(self):
return self._number_of_defaulted_routing_entries
@overrides(AbstractMulticastRoutingTable.__eq__)
def __eq__(self, other):
if not isinstance(other, CompressedMulticastRoutingTable):
return False
if self._x != other.x and self._y != other.y:
return False
return self._multicast_routing_entries == \
other.multicast_routing_entries
@overrides(AbstractMulticastRoutingTable.__ne__)
def __ne__(self, other):
return not self.__eq__(other)
@overrides(AbstractMulticastRoutingTable.__repr__)
def __repr__(self):
entry_string = ""
for entry in self._multicast_routing_entries:
entry_string += f"{entry}\n"
return f"{self._x}:{self._y}\n\n{entry_string}"
@overrides(AbstractMulticastRoutingTable.__hash__)
def __hash__(self):
return id(self)