/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/zmq_driver/zmq_async.py is in python-oslo.messaging 4.6.1-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | # Copyright 2015 Mirantis, Inc.
#
# 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
#
# http://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 oslo_messaging._i18n import _
from oslo_utils import importutils
# Map zmq_concurrency config option names to the actual module name.
ZMQ_MODULES = {
'native': 'zmq',
'eventlet': 'eventlet.green.zmq',
}
def import_zmq(zmq_concurrency='eventlet'):
_raise_error_if_invalid_config_value(zmq_concurrency)
imported_zmq = importutils.try_import(ZMQ_MODULES[zmq_concurrency],
default=None)
return imported_zmq
def get_poller(zmq_concurrency='eventlet'):
_raise_error_if_invalid_config_value(zmq_concurrency)
if zmq_concurrency == 'eventlet' and _is_eventlet_zmq_available():
from oslo_messaging._drivers.zmq_driver.poller import green_poller
return green_poller.GreenPoller()
from oslo_messaging._drivers.zmq_driver.poller import threading_poller
return threading_poller.ThreadingPoller()
def get_reply_poller(zmq_concurrency='eventlet'):
_raise_error_if_invalid_config_value(zmq_concurrency)
if zmq_concurrency == 'eventlet' and _is_eventlet_zmq_available():
from oslo_messaging._drivers.zmq_driver.poller import green_poller
return green_poller.HoldReplyPoller()
from oslo_messaging._drivers.zmq_driver.poller import threading_poller
return threading_poller.ThreadingPoller()
def get_executor(method, zmq_concurrency='eventlet'):
_raise_error_if_invalid_config_value(zmq_concurrency)
if zmq_concurrency == 'eventlet' and _is_eventlet_zmq_available():
from oslo_messaging._drivers.zmq_driver.poller import green_poller
return green_poller.GreenExecutor(method)
from oslo_messaging._drivers.zmq_driver.poller import threading_poller
return threading_poller.ThreadingExecutor(method)
def get_proc_executor(method):
from oslo_messaging._drivers.zmq_driver import zmq_poller
return zmq_poller.MutliprocessingExecutor(method)
def _is_eventlet_zmq_available():
return importutils.try_import('eventlet.green.zmq')
def _raise_error_if_invalid_config_value(zmq_concurrency):
if zmq_concurrency not in ZMQ_MODULES:
errmsg = _('Invalid zmq_concurrency value: %s')
raise ValueError(errmsg % zmq_concurrency)
def get_queue(zmq_concurrency='eventlet'):
_raise_error_if_invalid_config_value(zmq_concurrency)
if zmq_concurrency == 'eventlet' and _is_eventlet_zmq_available():
import eventlet
return eventlet.queue.Queue(), eventlet.queue.Empty
else:
import six
return six.moves.queue.Queue(), six.moves.queue.Empty
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