Source code for spinnman.messages.eieio.data_messages.key_data_element

# 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 struct
from spinnman.exceptions import SpinnmanInvalidParameterException
from spinnman.messages.eieio import EIEIOType
from .abstract_data_element import AbstractDataElement

_ONE_SHORT = struct.Struct("<H")
_ONE_WORD = struct.Struct("<I")


[docs]class KeyDataElement(AbstractDataElement): """ A data element that contains just a key. """ __slots__ = [ "_key"] def __init__(self, key): self._key = key @property def key(self): return self._key
[docs] def get_bytestring(self, eieio_type): if eieio_type.payload_bytes != 0: raise SpinnmanInvalidParameterException( "eieio_type", eieio_type, "The type specifies a payload, but this element has no" " payload") if eieio_type == EIEIOType.KEY_16_BIT: return _ONE_SHORT.pack(self._key) elif eieio_type == EIEIOType.KEY_32_BIT: return _ONE_WORD.pack(self._key) else: raise SpinnmanInvalidParameterException( "eieio_type", eieio_type, "Unknown type")
def __str__(self): return f"KeyDataElement:0x{self._key:x}" def __repr__(self): return self.__str__()