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# Copyright 2015 Intel Corporation.
#
# 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
#
# http://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.
"""Helper methods collection.
Collection of helper methods used by traffic generators
implementation.
"""
from collections import namedtuple
CMD_PREFIX = 'gencmd : '
TRAFFIC_DEFAULTS = {
'l2': {
'framesize': 64,
'srcmac': '00:00:00:00:00:00',
'dstmac': '00:00:00:00:00:00',
},
'l3': {
'proto': 'udp',
'srcip': '1.1.1.1',
'dstip': '90.90.90.90',
},
'l4': {
'srcport': 3000,
'dstport': 3001,
},
'vlan': {
'enabled': False,
'id': 0,
'priority': 0,
'cfi': 0,
},
}
#TODO remove namedtuples and implement results through IResult interface found
#in core/results
BurstResult = namedtuple(
'BurstResult',
'frames_tx frames_rx bytes_tx bytes_rx payload_err seq_err')
Back2BackResult = namedtuple(
'Back2BackResult',
'rx_fps rx_mbps tx_percent rx_percent tx_count b2b_frames '
'frame_loss_frames frame_loss_percent')
def merge_spec(orig, new):
"""Merges ``new`` dict with ``orig`` dict, and return orig.
This takes into account nested dictionaries. Example:
>>> old = {'foo': 1, 'bar': {'foo': 2, 'bar': 3}}
>>> new = {'foo': 6, 'bar': {'foo': 7}}
>>> merge_spec(old, new)
{'foo': 3, 'bar': {'foo': 7, 'bar': 3}}
You'll notice that ``bar.bar`` is not removed. This is the desired result.
"""
for key in orig:
if key not in new:
continue
# Not allowing derived dictionary types for now
# pylint: disable=unidiomatic-typecheck
if type(orig[key]) == dict:
orig[key] = merge_spec(orig[key], new[key])
else:
orig[key] = new[key]
for key in new:
if key not in orig:
orig[key] = new[key]
return orig
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