Source code for spinnman.messages.eieio.data_messages.key_data_element
from spinnman.exceptions import SpinnmanInvalidParameterException
from spinnman.messages.eieio import EIEIOType
from .abstract_data_element import AbstractDataElement
import struct
[docs]class KeyDataElement(AbstractDataElement):
""" A data element that contains just a 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 struct.pack("<H", self._key)
elif eieio_type == EIEIOType.KEY_32_BIT:
return struct.pack("<I", self._key)
else:
raise SpinnmanInvalidParameterException(
"eieio_type", eieio_type, "Unknown type")
def __str__(self):
return "KeyDataElement:{}".format(hex(self._key))
def __repr__(self):
return self.__str__()