Source code for spinnman.processes.abstract_single_connection_process
# 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 .abstract_process import AbstractProcess
from spinnman.connections import SCPRequestPipeLine
from spinnman.constants import N_RETRIES
[docs]class AbstractSingleConnectionProcess(AbstractProcess):
""" A process that uses a single connection in communication.
"""
__slots__ = [
"_connection_selector",
"_scp_request_pipeline",
"_n_retries"]
def __init__(self, connection_selector, n_retries=N_RETRIES):
super(AbstractSingleConnectionProcess, self).__init__()
self._scp_request_pipeline = None
self._connection_selector = connection_selector
self._n_retries = n_retries
def _send_request(self, request, callback=None, error_callback=None):
if error_callback is None:
error_callback = self._receive_error
# If no pipe line built yet, build one on the connection selected for
# it
if self._scp_request_pipeline is None:
self._scp_request_pipeline = SCPRequestPipeLine(
self._connection_selector.get_next_connection(request),
n_retries=self._n_retries)
# send request
self._scp_request_pipeline.send_request(
request, callback, error_callback)
def _finish(self):
self._scp_request_pipeline.finish()