Source code for pacman.operations.router_compressors.ordered_covering_router_compressor.ordered_covering_compressor
# Copyright (c) 2015 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.
import logging
from spinn_utilities.log import FormatAdapter
from pacman.operations.router_compressors import (AbstractCompressor, Entry)
from .ordered_covering import minimise
logger = FormatAdapter(logging.getLogger(__name__))
[docs]def ordered_covering_compressor():
"""
Compressor from rig that has been tied into the main tool chain stack.
:rtype: MulticastRoutingTables
"""
compressor = _OrderedCoveringCompressor()
# pylint:disable=protected-access
return compressor._run()
class _OrderedCoveringCompressor(AbstractCompressor):
"""
Compressor from rig that has been tied into the main tool chain stack.
"""
__slots__ = []
def __init__(self):
super().__init__(True)
def compress_table(self, router_table):
"""
:param UnCompressedMulticastRoutingTable router_table:
:rtype: list(Entry)
"""
# convert to rig inspired format
entries = list()
# handle entries
for router_entry in router_table.multicast_routing_entries:
# Add the new entry
entries.append(Entry.from_MulticastRoutingEntry(router_entry))
# compress the router entries
compressed_router_table_entries = minimise(entries)
return compressed_router_table_entries