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# 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.
import typing as ty
from nova.virt import event
class LibvirtEvent(event.InstanceEvent):
"""Base class for virt events that are specific to libvirt and therefore
handled in the libvirt driver level instead of propagatig it up to the
compute manager.
"""
class DeviceEvent(LibvirtEvent):
"""Base class for device related libvirt events"""
def __init__(self,
uuid: str,
dev: str,
timestamp: ty.Optional[float] = None):
super().__init__(uuid, timestamp)
self.dev = dev
def __repr__(self) -> str:
return "<%s: %s, %s => %s>" % (
self.__class__.__name__,
self.timestamp,
self.uuid,
self.dev)
class DeviceRemovedEvent(DeviceEvent):
"""Libvirt sends this event after a successful device detach"""
class DeviceRemovalFailedEvent(DeviceEvent):
"""Libvirt sends this event after an unsuccessful device detach"""
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