7e435fa8f3
There are many state constants held within nova.compute. Because these now need to be used in versioned notifications, they were converted into enums within nova.objects.fields. In order to prevent duplication, the constants in nova.compute were converted over to use the enums created for the notifications. Also, because the comments in nova.compute.vm_states were not the best, they were rearranged to more appropriately fit the lines they were attempting to comment. The object hash changes are ignored as it is only caused by the new sentinel enum value _UNUSED which is not intended to be used. Change-Id: I4c147a1a1145295b6ccfe9680706abe34cb35170
47 lines
2.2 KiB
Python
47 lines
2.2 KiB
Python
# 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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# Copyright (c) 2010 Citrix Systems, Inc.
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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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"""Power state is the state we get by calling virt driver on a particular
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domain. The hypervisor is always considered the authority on the status
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of a particular VM, and the power_state in the DB should be viewed as a
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snapshot of the VMs's state in the (recent) past. It can be periodically
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updated, and should also be updated at the end of a task if the task is
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supposed to affect power_state.
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"""
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from nova.objects import fields
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# NOTE(maoy): These are *not* virDomainState values from libvirt.
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# The hex value happens to match virDomainState for backward-compatibility
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# reasons.
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NOSTATE = fields.InstancePowerState.index(fields.InstancePowerState.NOSTATE)
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RUNNING = fields.InstancePowerState.index(fields.InstancePowerState.RUNNING)
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PAUSED = fields.InstancePowerState.index(fields.InstancePowerState.PAUSED)
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# the VM is powered off
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SHUTDOWN = fields.InstancePowerState.index(fields.InstancePowerState.SHUTDOWN)
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CRASHED = fields.InstancePowerState.index(fields.InstancePowerState.CRASHED)
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SUSPENDED = fields.InstancePowerState.index(
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fields.InstancePowerState.SUSPENDED)
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# TODO(justinsb): Power state really needs to be a proper class,
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# so that we're not locked into the libvirt status codes and can put mapping
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# logic here rather than spread throughout the code
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STATE_MAP = {fields.InstancePowerState.index(state): state
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for state in fields.InstancePowerState.ALL
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if state != fields.InstancePowerState._UNUSED}
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