Source code for spinnman.connections.abstract_classes.scp_receiver
# 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/>.
from six import add_metaclass
from spinn_utilities.abstract_base import AbstractBase, abstractmethod
from .connection import Connection
[docs]@add_metaclass(AbstractBase)
class SCPReceiver(Connection):
""" A receiver of SCP messages
"""
__slots__ = ()
[docs] @abstractmethod
def is_ready_to_receive(self, timeout=0):
""" Determines if there is an SCP packet to be read without blocking
:param timeout: \
The time to wait before returning if the connection is not ready
:type timeout: int
:return: True if there is an SCP packet to be read
:rtype: bool
"""
[docs] @abstractmethod
def receive_scp_response(self, timeout=1.0):
""" Receives an SCP response from this connection. Blocks\
until a message has been received, or a timeout occurs.
:param timeout: \
The time in seconds to wait for the message to arrive; if not\
specified, will wait forever, or until the connection is closed
:type timeout: int
:return: The SCP result, the sequence number, the data of the response\
and the offset at which the data starts (i.e., where the SDP\
header starts).
:rtype: tuple(:py:class:`spinnman.messages.scp.scp_result.SCPResult`,\
int, bytestring, int)
:raise spinnman.exceptions.SpinnmanIOException: \
If there is an error receiving the message
:raise spinnman.exceptions.SpinnmanTimeoutException: \
If there is a timeout before a message is received
"""