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().__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().bytestring + _PATTERN_BB.pack(self._region_id, self._sequence_no) + self._eieio_data_message.bytestring)