Source code for spinnman.connections.udp_packet_connections.eieio_connection
# 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 .udp_connection import UDPConnection
from spinnman.connections.abstract_classes import (
EIEIOReceiver, EIEIOSender, Listenable)
from spinnman.messages.eieio import (
read_eieio_command_message, read_eieio_data_message)
_ONE_SHORT = struct.Struct("<H")
_REPR_TEMPLATE = "EIEIOConnection(local_host={}, local_port={},"\
"remote_host={}, remote_port={})"
[docs]class EIEIOConnection(
UDPConnection, EIEIOReceiver, EIEIOSender, Listenable):
""" A UDP connection for sending and receiving raw EIEIO messages.
"""
__slots__ = []
[docs] def receive_eieio_message(self, timeout=None):
data = self.receive(timeout)
header = _ONE_SHORT.unpack_from(data)[0]
if header & 0xC000 == 0x4000:
return read_eieio_command_message(data, 0)
return read_eieio_data_message(data, 0)
[docs] def send_eieio_message(self, eieio_message):
self.send(eieio_message.bytestring)
[docs] def send_eieio_message_to(self, eieio_message, ip_address, port):
self.send_to(eieio_message.bytestring, (ip_address, port))
[docs] def get_receive_method(self):
return self.receive_eieio_message
def __repr__(self):
return _REPR_TEMPLATE.format(
self.local_ip_address, self.local_port,
self.remote_ip_address, self.remote_port)