Source code for spinnman.messages.eieio.command_messages.host_send_sequenced_data
# Copyright (c) 2017-2019 The University of Manchester
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import struct
from .eieio_command_message import EIEIOCommandMessage
from .eieio_command_header import EIEIOCommandHeader
from spinnman.constants import EIEIO_COMMAND_IDS
from spinnman.messages.eieio.create_eieio_data import read_eieio_data_message
_PATTERN_BB = struct.Struct("<BB")
[docs]class HostSendSequencedData(EIEIOCommandMessage):
""" Packet sent from the host to the SpiNNaker system in the context of\
buffering input mechanism to identify packet which needs to be stored\
in memory for future use
"""
__slots__ = [
"_eieio_data_message",
"_region_id",
"_sequence_no"]
def __init__(self, region_id, sequence_no, eieio_data_message):
super(HostSendSequencedData, self).__init__(EIEIOCommandHeader(
EIEIO_COMMAND_IDS.HOST_SEND_SEQUENCED_DATA))
self._region_id = region_id
self._sequence_no = sequence_no
self._eieio_data_message = eieio_data_message
@property
def region_id(self):
return self._region_id
@property
def sequence_no(self):
return self._sequence_no
@property
def eieio_data_message(self):
return self._eieio_data_message
[docs] @staticmethod
def get_min_packet_length():
return 4
[docs] @staticmethod
def from_bytestring(command_header, data, offset): # @UnusedVariable
region_id, sequence_no = _PATTERN_BB.unpack_from(data, offset)
eieio_data_message = read_eieio_data_message(data, offset)
return HostSendSequencedData(
region_id, sequence_no, eieio_data_message)
@property
def bytestring(self):
return (super(HostSendSequencedData, self).bytestring +
_PATTERN_BB.pack(self._region_id, self._sequence_no) +
self._eieio_data_message.bytestring)