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)
from spinn_utilities.overrides import overrides

_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] @overrides(EIEIOReceiver.receive_eieio_message) 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] @overrides(EIEIOSender.send_eieio_message) 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] @overrides(Listenable.get_receive_method) 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)