b5bf227db4
This oslo-incubator sync pulls in a new log.py which will make quantum's default log output format the same as nova, glance and cinder (once cinder's corresponding oslo sync merges). This common log format simplifies log indexing as part of CI and makes lives easier for deployers. This sync does add a requirement on six as jsonutils depends on it. It updates install_venv_common.py to be python26 compatible. It also brings in a bunch of recent python3 compatibility that was added to oslo. Fixes bug 1183144 Change-Id: Id0f196d7b5680e5950e4a27d66042bf00ccd49e6
122 lines
3.8 KiB
Python
122 lines
3.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2012 Red Hat, 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 eventlet import greenlet
|
|
from eventlet import greenpool
|
|
from eventlet import greenthread
|
|
|
|
from quantum.openstack.common import log as logging
|
|
from quantum.openstack.common import loopingcall
|
|
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
def _thread_done(gt, *args, **kwargs):
|
|
""" Callback function to be passed to GreenThread.link() when we spawn()
|
|
Calls the :class:`ThreadGroup` to notify if.
|
|
|
|
"""
|
|
kwargs['group'].thread_done(kwargs['thread'])
|
|
|
|
|
|
class Thread(object):
|
|
""" Wrapper around a greenthread, that holds a reference to the
|
|
:class:`ThreadGroup`. The Thread will notify the :class:`ThreadGroup` when
|
|
it has done so it can be removed from the threads list.
|
|
"""
|
|
def __init__(self, thread, group):
|
|
self.thread = thread
|
|
self.thread.link(_thread_done, group=group, thread=self)
|
|
|
|
def stop(self):
|
|
self.thread.kill()
|
|
|
|
def wait(self):
|
|
return self.thread.wait()
|
|
|
|
|
|
class ThreadGroup(object):
|
|
""" The point of the ThreadGroup classis to:
|
|
|
|
* keep track of timers and greenthreads (making it easier to stop them
|
|
when need be).
|
|
* provide an easy API to add timers.
|
|
"""
|
|
def __init__(self, thread_pool_size=10):
|
|
self.pool = greenpool.GreenPool(thread_pool_size)
|
|
self.threads = []
|
|
self.timers = []
|
|
|
|
def add_dynamic_timer(self, callback, initial_delay=None,
|
|
periodic_interval_max=None, *args, **kwargs):
|
|
timer = loopingcall.DynamicLoopingCall(callback, *args, **kwargs)
|
|
timer.start(initial_delay=initial_delay,
|
|
periodic_interval_max=periodic_interval_max)
|
|
self.timers.append(timer)
|
|
|
|
def add_timer(self, interval, callback, initial_delay=None,
|
|
*args, **kwargs):
|
|
pulse = loopingcall.FixedIntervalLoopingCall(callback, *args, **kwargs)
|
|
pulse.start(interval=interval,
|
|
initial_delay=initial_delay)
|
|
self.timers.append(pulse)
|
|
|
|
def add_thread(self, callback, *args, **kwargs):
|
|
gt = self.pool.spawn(callback, *args, **kwargs)
|
|
th = Thread(gt, self)
|
|
self.threads.append(th)
|
|
|
|
def thread_done(self, thread):
|
|
self.threads.remove(thread)
|
|
|
|
def stop(self):
|
|
current = greenthread.getcurrent()
|
|
for x in self.threads:
|
|
if x is current:
|
|
# don't kill the current thread.
|
|
continue
|
|
try:
|
|
x.stop()
|
|
except Exception as ex:
|
|
LOG.exception(ex)
|
|
|
|
for x in self.timers:
|
|
try:
|
|
x.stop()
|
|
except Exception as ex:
|
|
LOG.exception(ex)
|
|
self.timers = []
|
|
|
|
def wait(self):
|
|
for x in self.timers:
|
|
try:
|
|
x.wait()
|
|
except greenlet.GreenletExit:
|
|
pass
|
|
except Exception as ex:
|
|
LOG.exception(ex)
|
|
current = greenthread.getcurrent()
|
|
for x in self.threads:
|
|
if x is current:
|
|
continue
|
|
try:
|
|
x.wait()
|
|
except greenlet.GreenletExit:
|
|
pass
|
|
except Exception as ex:
|
|
LOG.exception(ex)
|