48 lines
1.8 KiB
Python
48 lines
1.8 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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# 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 = 0x00
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RUNNING = 0x01
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PAUSED = 0x03
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SHUTDOWN = 0x04 # the VM is powered off
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CRASHED = 0x06
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SUSPENDED = 0x07
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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 = {
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NOSTATE: 'pending',
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RUNNING: 'running',
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PAUSED: 'paused',
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SHUTDOWN: 'shutdown',
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CRASHED: 'crashed',
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SUSPENDED: 'suspended',
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}
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