Switch to oslo.service
oslo.service has graduated, so os-brick should consume it. Change-Id: Ibcede019e0a475cf12e6d2439641f213bb041365 Closes-Bug: #1466851
This commit is contained in:
Sergey Vilgelm
parent
fe28f0cb37
commit
6999a3ab54
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@ -4,5 +4,3 @@
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# The base module to hold the copy of openstack.common
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base=brick
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module=loopingcall
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@ -31,6 +31,7 @@ import time
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from oslo_concurrency import lockutils
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from oslo_concurrency import processutils as putils
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from oslo_log import log as logging
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from oslo_service import loopingcall
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from oslo_utils import strutils
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import six
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@ -44,7 +45,6 @@ from os_brick.initiator import linuxfc
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from os_brick.initiator import linuxscsi
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from os_brick.remotefs import remotefs
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from os_brick.i18n import _, _LE, _LW
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from os_brick.openstack.common import loopingcall
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LOG = logging.getLogger(__name__)
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@ -1,147 +0,0 @@
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# Copyright 2011 Justin Santa Barbara
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import sys
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import time
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from eventlet import event
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from eventlet import greenthread
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from os_brick.openstack.common._i18n import _LE, _LW
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LOG = logging.getLogger(__name__)
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# NOTE(zyluo): This lambda function was declared to avoid mocking collisions
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# with time.time() called in the standard logging module
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# during unittests.
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_ts = lambda: time.time()
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class LoopingCallDone(Exception):
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"""Exception to break out and stop a LoopingCallBase.
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The poll-function passed to LoopingCallBase can raise this exception to
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break out of the loop normally. This is somewhat analogous to
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StopIteration.
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An optional return-value can be included as the argument to the exception;
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this return-value will be returned by LoopingCallBase.wait()
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"""
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def __init__(self, retvalue=True):
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""":param retvalue: Value that LoopingCallBase.wait() should return."""
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self.retvalue = retvalue
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class LoopingCallBase(object):
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def __init__(self, f=None, *args, **kw):
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self.args = args
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self.kw = kw
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self.f = f
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self._running = False
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self.done = None
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def stop(self):
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self._running = False
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def wait(self):
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return self.done.wait()
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class FixedIntervalLoopingCall(LoopingCallBase):
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"""A fixed interval looping call."""
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def start(self, interval, initial_delay=None):
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self._running = True
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done = event.Event()
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def _inner():
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if initial_delay:
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greenthread.sleep(initial_delay)
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try:
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while self._running:
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start = _ts()
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self.f(*self.args, **self.kw)
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end = _ts()
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if not self._running:
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break
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delay = end - start - interval
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if delay > 0:
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LOG.warn(_LW('task %(func_name)r run outlasted '
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'interval by %(delay).2f sec'),
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{'func_name': self.f, 'delay': delay})
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greenthread.sleep(-delay if delay < 0 else 0)
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except LoopingCallDone as e:
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self.stop()
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done.send(e.retvalue)
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except Exception:
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LOG.exception(_LE('in fixed duration looping call'))
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done.send_exception(*sys.exc_info())
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return
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else:
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done.send(True)
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self.done = done
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greenthread.spawn_n(_inner)
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return self.done
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class DynamicLoopingCall(LoopingCallBase):
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"""A looping call which sleeps until the next known event.
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The function called should return how long to sleep for before being
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called again.
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"""
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def start(self, initial_delay=None, periodic_interval_max=None):
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self._running = True
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done = event.Event()
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def _inner():
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if initial_delay:
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greenthread.sleep(initial_delay)
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try:
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while self._running:
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idle = self.f(*self.args, **self.kw)
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if not self._running:
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break
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if periodic_interval_max is not None:
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idle = min(idle, periodic_interval_max)
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LOG.debug('Dynamic looping call %(func_name)r sleeping '
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'for %(idle).02f seconds',
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{'func_name': self.f, 'idle': idle})
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greenthread.sleep(idle)
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except LoopingCallDone as e:
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self.stop()
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done.send(e.retvalue)
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except Exception:
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LOG.exception(_LE('in dynamic looping call'))
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done.send_exception(*sys.exc_info())
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return
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else:
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done.send(True)
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self.done = done
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greenthread.spawn(_inner)
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return self.done
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@ -21,6 +21,7 @@ import time
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import mock
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from oslo_concurrency import processutils as putils
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from oslo_log import log as logging
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from oslo_service import loopingcall
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import six
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import testtools
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@ -30,7 +31,6 @@ from os_brick.initiator import connector
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from os_brick.initiator import host_driver
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from os_brick.initiator import linuxfc
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from os_brick.initiator import linuxscsi
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from os_brick.openstack.common import loopingcall
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from os_brick.remotefs import remotefs
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from os_brick.tests import base
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@ -9,6 +9,7 @@ oslo.concurrency>=2.0.0 # Apache-2.0
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oslo.log>=1.2.0 # Apache-2.0
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oslo.serialization>=1.4.0 # Apache-2.0
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oslo.i18n>=1.5.0 # Apache-2.0
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oslo.service>=0.1.0 # Apache-2.0
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oslo.utils>=1.6.0 # Apache-2.0
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retrying>=1.2.3,!=1.3.0 # Apache-2.0
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six>=1.9.0
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