Source code for spinnman.messages.eieio.data_messages.key_payload_data_element
from spinnman.exceptions import SpinnmanInvalidParameterException
from spinnman.messages.eieio import EIEIOType
from .abstract_data_element import AbstractDataElement
import struct
[docs]class KeyPayloadDataElement(AbstractDataElement):
""" A data element that contains a key and a payload
"""
def __init__(self, key, payload, payload_is_timestamp=False):
self._key = key
self._payload = payload
self._payload_is_timestamp = payload_is_timestamp
@property
def key(self):
return self._key
@property
def payload(self):
return self._payload
@property
def payload_is_timestamp(self):
return self._payload_is_timestamp
[docs] def get_bytestring(self, eieio_type):
if eieio_type.payload_bytes == 0:
raise SpinnmanInvalidParameterException(
"eieio_type", eieio_type,
"The type specifies no payload, but this element has a"
" payload")
if eieio_type == EIEIOType.KEY_PAYLOAD_16_BIT:
return struct.pack("<HH", self._key, self._payload)
elif eieio_type == EIEIOType.KEY_PAYLOAD_32_BIT:
return struct.pack("<II", self._key, self._payload)
else:
raise SpinnmanInvalidParameterException(
"eieio_type", eieio_type, "Unknown type")
def __str__(self):
return "KeyPayloadDataElement:{}:{}".format(
hex(self._key), hex(self._payload))
def __repr__(self):
return self.__str__()