Source code for spinnman.processes.de_alloc_sdram_process
# Copyright (c) 2015 The University of Manchester
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from spinnman.messages.scp.impl import SDRAMDeAlloc
from .abstract_multi_connection_process import AbstractMultiConnectionProcess
[docs]class DeAllocSDRAMProcess(AbstractMultiConnectionProcess):
"""
.. warning::
This class is currently deprecated and untested as there is no
known use except for Transceiver.free_sdram and free_sdram_by_app_id
which are both themselves deprecated.
"""
__slots__ = [
"_no_blocks_freed"]
def __init__(self, connection_selector):
"""
:param connection_selector:
:type connection_selector:
AbstractMultiConnectionProcessConnectionSelector
"""
super().__init__(connection_selector)
self._no_blocks_freed = None
[docs] def de_alloc_sdram(self, x, y, app_id, base_address=None):
"""
:param int x:
:param int y:
:param int app_id:
:param base_address:
:type base_address: int or None
"""
callback = None
# deallocate space in the SDRAM
if base_address is None:
callback = self._handle_sdram_alloc_response
self._send_request(SDRAMDeAlloc(x, y, app_id, base_address),
callback=callback)
self._finish()
self.check_for_error()
def _handle_sdram_alloc_response(self, response):
self._no_blocks_freed = response.number_of_blocks_freed
@property
def no_blocks_freed(self):
"""
:rtype: int
"""
return self._no_blocks_freed