Source code for spinnman.messages.scp.abstract_messages.scp_response
from six import add_metaclass
from spinn_utilities.abstract_base import AbstractBase, abstractmethod
from spinnman.messages.sdp import SDPHeader
from spinnman.messages.scp import SCPResponseHeader
# The offset of the header from the start of a received packet
# (8 bytes of SDP header)
_SCP_HEADER_OFFSET = 8
# The offset of the data from the start of a received packet
# (8 bytes of SDP header + 4 bytes of SCP header)
_SCP_DATA_OFFSET = 12
[docs]@add_metaclass(AbstractBase)
class AbstractSCPResponse(object):
""" Represents an abstract SCP Response
"""
def __init__(self):
"""
"""
self._sdp_header = None
self._scp_response_header = None
[docs] def read_bytestring(self, data, offset):
""" Reads a packet from a bytestring of data
:param data: The bytestring to be read
:type data: str
:param offset: The offset in the data from which the response should\
be read
:type offset: int
"""
self._sdp_header = SDPHeader.from_bytestring(data, offset)
self._scp_response_header = SCPResponseHeader.from_bytestring(
data, _SCP_HEADER_OFFSET + offset)
self.read_data_bytestring(data, _SCP_DATA_OFFSET + offset)
[docs] @abstractmethod
def read_data_bytestring(self, data, offset):
""" Reads the remainder of the data following the header
:param data: The bytestring to read from
:type data: str
:param offset: The offset into the data after the headers
:type offset: int
"""
pass
@property
def sdp_header(self):
""" The SDP header from the response
:return: The SDP header
:rtype: :py:class:`spinnman.messages.sdp.sdp_header.SDPHeader`
:raise None: No known exceptions are raised
"""
return self._sdp_header
@property
def scp_response_header(self):
""" The SCP header from the response
:return: The SCP header
:rtype:\
:py:class:`spinnman.messages.scp.scp_response_header.SCPResponseHeader`
:raise None: No known exceptions are raised
"""
return self._scp_response_header