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virt-manager/virtManager/domain.py
Giuseppe Scrivano c1fa43ebb9 virt-manager: ignore VIR_ERR_NO_DOMAIN when a domain was just deleted 
Some callbacks could try to access a domain that was just deleted and
not accessible anymore.  Detect these cases and don't propagate the
exception.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
2013-08-16 11:51:15 -04:00

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#
# Copyright (C) 2006 Red Hat, Inc.
# Copyright (C) 2006 Daniel P. Berrange <berrange@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301 USA.
#
# pylint: disable=E0611
from gi.repository import GObject
# pylint: enable=E0611
import logging
import time
import threading
import libvirt
import virtinst
from virtinst import util
from virtManager import uihelpers
from virtManager.libvirtobject import vmmLibvirtObject
def compare_device(origdev, newdev, idx):
devprops = {
"disk" : ["target", "bus"],
"interface" : ["macaddr", "vmmindex"],
"input" : ["bus", "type", "vmmindex"],
"sound" : ["model", "vmmindex"],
"video" : ["model", "vmmindex"],
"watchdog" : ["vmmindex"],
"hostdev" : ["type", "managed", "vmmindex",
"product", "vendor",
"function", "domain", "slot"],
"serial" : ["type", "target_port"],
"parallel" : ["type", "target_port"],
"console" : ["type", "target_type", "target_port"],
"graphics" : ["type", "vmmindex"],
"controller" : ["type", "index"],
"channel" : ["type", "target_name"],
"filesystem" : ["target" , "vmmindex"],
"smartcard" : ["mode" , "vmmindex"],
"redirdev" : ["bus" , "type", "vmmindex"],
"tpm" : ["type" , "vmmindex"],
}
if id(origdev) == id(newdev):
return True
if type(origdev) is not type(newdev):
return False
for devprop in devprops[origdev.virtual_device_type]:
origval = getattr(origdev, devprop)
if devprop == "vmmindex":
newval = idx
else:
newval = getattr(newdev, devprop)
if origval != newval:
return False
return True
def find_device(guest, origdev):
devlist = guest.get_devices(origdev.virtual_device_type)
for idx in range(len(devlist)):
dev = devlist[idx]
if compare_device(origdev, dev, idx):
return dev
return None
def start_job_progress_thread(vm, meter, progtext):
current_thread = threading.currentThread()
def jobinfo_cb():
while True:
time.sleep(.5)
if not current_thread.isAlive():
return False
try:
jobinfo = vm.job_info()
data_total = float(jobinfo[3])
# data_processed = float(jobinfo[4])
data_remaining = float(jobinfo[5])
# data_total is 0 if the job hasn't started yet
if not data_total:
continue
if not meter.started:
meter.start(size=data_total,
text=progtext)
progress = data_total - data_remaining
meter.update(progress)
except:
logging.exception("Error calling jobinfo")
return False
return True
if vm.getjobinfo_supported:
t = threading.Thread(target=jobinfo_cb,
name="job progress reporting",
args=())
t.daemon = True
t.start()
class vmmInspectionData(object):
def __init__(self):
self.type = None
self.distro = None
self.major_version = None
self.minor_version = None
self.hostname = None
self.product_name = None
self.product_variant = None
self.icon = None
self.applications = None
class vmmDomain(vmmLibvirtObject):
"""
Class wrapping virDomain libvirt objects. Is also extended to be
backed by a virtinst.Guest object for new VM 'customize before install'
"""
__gsignals__ = {
"status-changed": (GObject.SignalFlags.RUN_FIRST, None, [int, int]),
"resources-sampled": (GObject.SignalFlags.RUN_FIRST, None, []),
"inspection-changed": (GObject.SignalFlags.RUN_FIRST, None, []),
"pre-startup": (GObject.SignalFlags.RUN_FIRST, None, [object]),
}
def __init__(self, conn, backend, key):
vmmLibvirtObject.__init__(self, conn, backend, key)
self.uuid = key
self.cloning = False
self.record = []
self.maxRecord = {
"diskRdRate" : 10.0,
"diskWrRate" : 10.0,
"netTxRate" : 10.0,
"netRxRate" : 10.0,
}
self._install_abort = False
self.reboot_listener = None
self._startup_vcpus = None
self._is_management_domain = None
self._id = None
self._name = None
self._inactive_xml_flags = 0
self._active_xml_flags = 0
self.lastStatus = libvirt.VIR_DOMAIN_SHUTOFF
self._getvcpus_supported = None
self._getjobinfo_supported = None
self.managedsave_supported = False
self.remote_console_supported = False
self._guest = None
self._guest_to_define = None
self._enable_net_poll = False
self._stats_net_supported = True
self._stats_net_skip = []
self._enable_disk_poll = False
self._stats_disk_supported = True
self._stats_disk_skip = []
self.inspection = vmmInspectionData()
if isinstance(self._backend, virtinst.Guest):
return
self._libvirt_init()
def _get_getvcpus_supported(self):
if self._getvcpus_supported is None:
self._getvcpus_supported = True
try:
self._backend.vcpus()
except libvirt.libvirtError, err:
if util.is_error_nosupport(err):
self._getvcpus_supported = False
return self._getvcpus_supported
getvcpus_supported = property(_get_getvcpus_supported)
def _get_getjobinfo_supported(self):
if self._getjobinfo_supported is None:
self._getjobinfo_supported = self.conn.check_domain_support(
self._backend,
self.conn.SUPPORT_DOMAIN_JOB_INFO)
return self._getjobinfo_supported
getjobinfo_supported = property(_get_getjobinfo_supported)
def _libvirt_init(self):
"""
Initialization to do if backed by a libvirt virDomain
"""
self._reparse_xml()
self.managedsave_supported = self.conn.get_dom_managedsave_supported(
self._backend)
self.remote_console_supported = self.conn.check_domain_support(
self._backend,
self.conn.SUPPORT_DOMAIN_CONSOLE_STREAM)
# Determine available XML flags (older libvirt versions will error
# out if passed SECURE_XML, INACTIVE_XML, etc)
(self._inactive_xml_flags,
self._active_xml_flags) = self.conn.get_dom_flags(self._backend)
self.toggle_sample_network_traffic()
self.toggle_sample_disk_io()
self.force_update_status()
# Hook up listeners that need to be cleaned up
self.add_gconf_handle(
self.config.on_stats_enable_net_poll_changed(
self.toggle_sample_network_traffic))
self.add_gconf_handle(
self.config.on_stats_enable_disk_poll_changed(
self.toggle_sample_disk_io))
self.connect("status-changed", self._update_start_vcpus)
self.connect("config-changed", self._reparse_xml)
self.connect("pre-startup", self._prestartup_nodedev_check)
def _prestartup_nodedev_check(self, src, ret):
ignore = src
error = _("There is more than one '%s' device attached to "
"your host, and we can't determine which one to "
"use for your guest.\n"
"To fix this, remove and reattach the USB device "
"to your guest using the 'Add Hardware' wizard.")
for hostdev in self.get_hostdev_devices():
devtype = hostdev.type
if devtype != "usb":
continue
vendor = hostdev.vendor
product = hostdev.product
bus = hostdev.bus
device = hostdev.device
if vendor and product:
count = self.conn.get_nodedevs_number("usb_device",
vendor,
product)
if count > 1 and not (bus and device):
prettyname = "%s %s" % (vendor, product)
ret.append(error % prettyname)
###########################
# Misc API getter methods #
###########################
def get_name(self):
if self._name is None:
self._name = self._backend.name()
return self._name
def get_id(self):
if self._id is None:
self._id = self._backend.ID()
return self._id
def status(self):
return self.lastStatus
def change_name_backend(self, newbackend):
# Used for changing the domain object after a rename
self._backend = newbackend
def get_cloning(self):
return self.cloning
def set_cloning(self, val):
self.cloning = bool(val)
# If manual shutdown or destroy specified, make sure we don't continue
# install process
def get_install_abort(self):
return bool(self._install_abort)
def rhel6_defaults(self):
return self.conn.rhel6_defaults(self.get_emulator())
def is_read_only(self):
if self.is_management_domain():
return True
return False
def is_management_domain(self):
if self._is_management_domain is None:
self._is_management_domain = (self.get_id() == 0)
return self._is_management_domain
def has_spicevmc_type_redirdev(self):
devs = self.get_redirdev_devices()
for dev in devs:
if dev.type == "spicevmc":
return True
return False
def get_id_pretty(self):
i = self.get_id()
if i < 0:
return "-"
return str(i)
#############################
# Internal XML handling API #
#############################
def _invalidate_xml(self):
vmmLibvirtObject._invalidate_xml(self)
self._guest_to_define = None
self._name = None
self._id = None
def _get_guest_to_define(self):
if not self._guest_to_define:
self._guest_to_define = self._get_guest(inactive=True)
return self._guest_to_define
def _redefine_guest(self, cb):
guest = self._get_guest_to_define()
return cb(guest)
def _redefine_device(self, cb, origdev):
defguest = self._get_guest_to_define()
dev = find_device(defguest, origdev)
if dev:
return cb(dev)
# If we are removing multiple dev from an active VM, a double
# attempt may result in a lookup failure. If device is present
# in the active XML, assume all is good.
if find_device(self._get_guest(), origdev):
logging.debug("Device in active config but not inactive config.")
return
raise RuntimeError(_("Could not find specified device in the "
"inactive VM configuration: %s") % repr(origdev))
def redefine_cached(self):
if not self._guest_to_define:
logging.debug("No cached XML to define, skipping.")
return
guest = self._get_guest_to_define()
xml = guest.get_xml_config()
self._redefine_xml(xml)
def _get_domain_xml(self, inactive=False, refresh_if_nec=True):
return vmmLibvirtObject.get_xml(self,
inactive=inactive,
refresh_if_nec=refresh_if_nec)
def get_xml(self, inactive=False, refresh_if_nec=True):
guest = self._get_guest(inactive=inactive,
refresh_if_nec=refresh_if_nec)
return guest.get_xml_config()
def _get_guest(self, inactive=False, refresh_if_nec=True):
xml = self._get_domain_xml(inactive, refresh_if_nec)
if inactive:
# If inactive XML requested, always return a fresh guest even
# the current Guest is inactive XML (like when the domain is
# stopped). Callers that request inactive are basically expecting
# a new copy.
return self._build_guest(xml)
return self._guest
get_guest_for_virtinst_func = _get_guest
def _build_guest(self, xml):
return virtinst.Guest(self.conn.get_backend(),
parsexml=xml)
def _reparse_xml(self, ignore=None):
try:
self._guest = self._build_guest(self._get_domain_xml())
except libvirt.libvirtError, e:
if uihelpers.exception_is_libvirt_error(e, "VIR_ERR_NO_DOMAIN"):
return
raise
##############################
# Persistent XML change APIs #
##############################
# Rename
def define_name(self, newname):
# Do this, so that _guest_to_define has original inactive XML
self._invalidate_xml()
guest = self._get_guest_to_define()
if guest.name == newname:
return
if self.is_active():
raise RuntimeError(_("Cannot rename an active guest"))
logging.debug("Changing guest name to '%s'", newname)
origxml = guest.get_xml_config()
guest.name = newname
newxml = guest.get_xml_config()
try:
self.conn.rename_vm(self, origxml, newxml)
finally:
self._invalidate_xml()
self.emit("config-changed")
# Device Add/Remove
def add_device(self, devobj):
"""
Redefine guest with appended device XML 'devxml'
"""
def change(guest):
guest.add_device(devobj)
ret = self._redefine_guest(change)
self.redefine_cached()
return ret
def remove_device(self, devobj):
"""
Remove passed device from the inactive guest XML
"""
# HACK: If serial and console are both present, they both need
# to be removed at the same time
con = None
if hasattr(devobj, "virtmanager_console_dup"):
con = getattr(devobj, "virtmanager_console_dup")
def change(guest):
def rmdev(editdev):
if con:
rmcon = find_device(guest, con)
if rmcon:
guest.remove_device(rmcon)
guest.remove_device(editdev)
return self._redefine_device(rmdev, devobj)
ret = self._redefine_guest(change)
self.redefine_cached()
return ret
# CPU define methods
def define_vcpus(self, vcpus, maxvcpus):
def change(guest):
guest.curvcpus = int(vcpus)
guest.vcpus = int(maxvcpus)
return self._redefine_guest(change)
def define_cpuset(self, cpuset):
def change(guest):
guest.cpuset = cpuset
return self._redefine_guest(change)
def define_cpu_topology(self, sockets, cores, threads):
def change(guest):
cpu = guest.cpu
cpu.sockets = sockets
cpu.cores = cores
cpu.threads = threads
return self._redefine_guest(change)
def define_cpu(self, model, vendor, from_host, featurelist):
def change(guest):
if from_host:
guest.cpu.copy_host_cpu()
elif guest.cpu.model != model:
# Since we don't expose this in the UI, have host value trump
# caps value
guest.cpu.vendor = vendor
guest.cpu.model = model or None
if guest.cpu.model is None:
for f in guest.cpu.features:
guest.cpu.remove_feature(f)
return
origfeatures = guest.cpu.features
def set_feature(fname, fpol):
for f in origfeatures:
if f.name != fname:
continue
if f.policy != fpol:
if fpol == "default":
guest.cpu.remove_feature(f)
else:
f.policy = fpol
return
if fpol != "default":
guest.cpu.add_feature(fname, fpol)
# Sync feature lists
for fname, fpol in featurelist:
set_feature(fname, fpol)
return self._redefine_guest(change)
# Mem define methods
def define_both_mem(self, memory, maxmem):
def change(guest):
guest.memory = int(memory)
guest.maxmemory = int(maxmem)
return self._redefine_guest(change)
# Security define methods
def define_seclabel(self, model, t, label, relabel):
def change(guest):
seclabel = guest.seclabel
seclabel.model = model or None
if not model:
return
if relabel is not None:
if relabel:
seclabel.relabel = "yes"
else:
seclabel.relabel = "no"
seclabel.type = t
if label:
seclabel.label = label
return self._redefine_guest(change)
# Machine config define methods
def define_acpi(self, newvalue):
def change(guest):
guest.features["acpi"] = newvalue
return self._redefine_guest(change)
def define_apic(self, newvalue):
def change(guest):
guest.features["apic"] = newvalue
return self._redefine_guest(change)
def define_clock(self, newvalue):
def change(guest):
guest.clock.offset = newvalue
return self._redefine_guest(change)
def define_machtype(self, newvalue):
def change(guest):
guest.os.machine = newvalue
return self._redefine_guest(change)
def define_description(self, newvalue):
def change(guest):
guest.description = newvalue or None
return self._redefine_guest(change)
# Boot define methods
def set_boot_device(self, boot_list):
def change(guest):
guest.os.bootorder = boot_list
return self._redefine_guest(change)
def set_boot_menu(self, newval):
def change(guest):
guest.os.enable_bootmenu = bool(newval)
return self._redefine_guest(change)
def set_boot_kernel(self, kernel, initrd, args):
def change(guest):
guest.os.kernel = kernel or None
guest.os.initrd = initrd or None
guest.os.kernel_args = args or None
return self._redefine_guest(change)
def set_boot_init(self, init):
def change(guest):
guest.os.init = init
return self._redefine_guest(change)
# Disk define methods
def define_storage_media(self, devobj, newpath):
def change(editdev):
editdev.path = newpath
editdev.sync_path_props()
return self._redefine_device(change, devobj)
def define_disk_readonly(self, devobj, do_readonly):
def change(editdev):
editdev.read_only = do_readonly
return self._redefine_device(change, devobj)
def define_disk_shareable(self, devobj, do_shareable):
def change(editdev):
editdev.shareable = do_shareable
return self._redefine_device(change, devobj)
def define_disk_cache(self, devobj, new_cache):
def change(editdev):
editdev.driver_cache = new_cache or None
return self._redefine_device(change, devobj)
def define_disk_io(self, devobj, val):
def change(editdev):
editdev.driver_io = val or None
return self._redefine_device(change, devobj)
def define_disk_driver_type(self, devobj, new_driver_type):
def change(editdev):
editdev.driver_type = new_driver_type or None
return self._redefine_device(change, devobj)
def define_disk_bus(self, devobj, newval, addr):
def change(editdev):
oldprefix = editdev.get_target_prefix()[0]
oldbus = editdev.bus
editdev.bus = newval
if oldbus == newval:
return
editdev.address.clear()
editdev.address.set_addrstr(addr)
if oldprefix == editdev.get_target_prefix()[0]:
return
used = []
disks = (self.get_disk_devices() +
self.get_disk_devices(inactive=True))
for d in disks:
used.append(d.target)
if editdev.target:
used.remove(editdev.target)
editdev.target = None
editdev.generate_target(used)
return self._redefine_device(change, devobj)
def define_disk_serial(self, devobj, val):
def change(editdev):
if val != editdev.serial:
editdev.serial = val or None
return self._redefine_device(change, devobj)
def define_disk_iotune_rbs(self, devobj, val):
def change(editdev):
editdev.iotune_rbs = val
return self._redefine_device(change, devobj)
def define_disk_iotune_ris(self, devobj, val):
def change(editdev):
editdev.iotune_ris = val
return self._redefine_device(change, devobj)
def define_disk_iotune_tbs(self, devobj, val):
def change(editdev):
editdev.iotune_tbs = val
return self._redefine_device(change, devobj)
def define_disk_iotune_tis(self, devobj, val):
def change(editdev):
editdev.iotune_tis = val
return self._redefine_device(change, devobj)
def define_disk_iotune_wbs(self, devobj, val):
def change(editdev):
editdev.iotune_wbs = val
return self._redefine_device(change, devobj)
def define_disk_iotune_wis(self, devobj, val):
def change(editdev):
editdev.iotune_wis = val
return self._redefine_device(change, devobj)
# Network define methods
def define_network_source(self, devobj, newtype, newsource, newmode):
def change(editdev):
if not newtype:
return
editdev.source = None
editdev.type = newtype
editdev.source = newsource
editdev.source_mode = newmode or None
return self._redefine_device(change, devobj)
def define_network_model(self, devobj, newmodel, addr):
def change(editdev):
if editdev.model != newmodel:
editdev.address.clear()
editdev.address.set_addrstr(addr)
editdev.model = newmodel
return self._redefine_device(change, devobj)
def define_virtualport(self, devobj, newtype, newmanagerid,
newtypeid, newtypeidversion, newinstanceid):
def change(editdev):
editdev.virtualport.type = newtype or None
editdev.virtualport.managerid = newmanagerid or None
editdev.virtualport.typeid = newtypeid or None
editdev.virtualport.typeidversion = newtypeidversion or None
editdev.virtualport.instanceid = newinstanceid or None
return self._redefine_device(change, devobj)
# Graphics define methods
def define_graphics_password(self, devobj, newval):
def change(editdev):
editdev.passwd = newval or None
return self._redefine_device(change, devobj)
def define_graphics_keymap(self, devobj, newval):
def change(editdev):
editdev.keymap = newval
return self._redefine_device(change, devobj)
def define_graphics_type(self, devobj, newval, apply_spice_defaults):
def handle_spice():
if not apply_spice_defaults:
return
guest = self._get_guest_to_define()
is_spice = (newval == virtinst.VirtualGraphics.TYPE_SPICE)
if is_spice:
dev = virtinst.VirtualChannelDevice(guest.conn)
dev.type = dev.TYPE_SPICEVMC
guest.add_device(dev)
else:
channels = guest.get_devices("channel")
channels = [x for x in guest.get_devices("channel")
if x.type == "spicevmc"]
for dev in channels:
guest.remove_device(dev)
def change(editdev):
editdev.type = newval
handle_spice()
return self._redefine_device(change, devobj)
# Sound define methods
def define_sound_model(self, devobj, newmodel):
def change(editdev):
if editdev.model != newmodel:
editdev.address.clear()
editdev.model = newmodel
return self._redefine_device(change, devobj)
# Video define methods
def define_video_model(self, devobj, newmodel):
def change(editdev):
if newmodel == editdev.model:
return
editdev.model = newmodel
editdev.address.clear()
# Clear out heads/ram values so they reset to default. If
# we ever allow editing these values in the UI we should
# drop this
editdev.vram = None
editdev.heads = None
editdev.ram = None
return self._redefine_device(change, devobj)
# Watchdog define methods
def define_watchdog_model(self, devobj, newval):
def change(editdev):
if editdev.model != newval:
editdev.address.clear()
editdev.model = newval
return self._redefine_device(change, devobj)
def define_watchdog_action(self, devobj, newval):
def change(editdev):
editdev.action = newval
return self._redefine_device(change, devobj)
# Smartcard define methods
def define_smartcard_mode(self, devobj, newmodel):
def change(editdev):
editdev.mode = newmodel
editdev.type = editdev.TYPE_DEFAULT
return self._redefine_device(change, devobj)
# Controller define methods
def define_controller_model(self, devobj, newmodel):
def change(editdev):
ignore = editdev
guest = self._get_guest_to_define()
ctrls = guest.get_devices("controller")
ctrls = [x for x in ctrls if (x.type ==
virtinst.VirtualController.TYPE_USB)]
for dev in ctrls:
guest.remove_device(dev)
if newmodel == "ich9-ehci1":
for dev in virtinst.VirtualController.get_usb2_controllers(
guest.conn):
guest.add_device(dev)
return self._redefine_device(change, devobj)
####################
# Hotplug routines #
####################
def attach_device(self, devobj):
"""
Hotplug device to running guest
"""
if not self.is_active():
return
devxml = devobj.get_xml_config()
self._backend.attachDevice(devxml)
def detach_device(self, devobj):
"""
Hotunplug device from running guest
"""
if not self.is_active():
return
xml = devobj.get_xml_config()
self._backend.detachDevice(xml)
def update_device(self, devobj, flags=1):
if not self.is_active():
return
# Default flag is VIR_DOMAIN_DEVICE_MODIFY_LIVE
xml = devobj.get_xml_config()
self._backend.updateDeviceFlags(xml, flags)
def hotplug_vcpus(self, vcpus):
vcpus = int(vcpus)
if vcpus != self.vcpu_count():
self._backend.setVcpus(vcpus)
def hotplug_memory(self, memory):
if memory != self.get_memory():
self._backend.setMemory(memory)
def hotplug_maxmem(self, maxmem):
if maxmem != self.maximum_memory():
self._backend.setMaxMemory(maxmem)
def hotplug_both_mem(self, memory, maxmem):
logging.info("Hotplugging curmem=%s maxmem=%s for VM '%s'",
memory, maxmem, self.get_name())
if self.is_active():
actual_cur = self.get_memory()
if memory:
if maxmem < actual_cur:
# Set current first to avoid error
self.hotplug_memory(memory)
self.hotplug_maxmem(maxmem)
else:
self.hotplug_maxmem(maxmem)
self.hotplug_memory(memory)
else:
self.hotplug_maxmem(maxmem)
def hotplug_storage_media(self, devobj, newpath):
devobj.path = newpath
self.attach_device(devobj)
def hotplug_graphics_password(self, devobj, newval):
devobj.passwd = newval
self.update_device(devobj)
def hotplug_description(self, desc):
# We already fake hotplug like behavior, by reading the
# description from the inactive XML from a running VM
#
# libvirt since 0.9.10 provides a SetMetadata API that provides
# actual <description> 'hotplug', and using that means checkig
# for support, version, etc.
if not self.conn.check_domain_support(self._backend,
self.conn.SUPPORT_DOMAIN_SET_METADATA):
return
flags = (libvirt.VIR_DOMAIN_AFFECT_LIVE |
libvirt.VIR_DOMAIN_AFFECT_CONFIG)
self._backend.setMetadata(
libvirt.VIR_DOMAIN_METADATA_DESCRIPTION,
desc, None, None, flags)
########################
# Libvirt API wrappers #
########################
def _define(self, newxml):
self.conn.define_domain(newxml)
def _XMLDesc(self, flags):
return self._backend.XMLDesc(flags)
def pin_vcpu(self, vcpu_num, pinlist):
self._backend.pinVcpu(vcpu_num, pinlist)
def vcpu_info(self):
if self.is_active() and self.getvcpus_supported:
return self._backend.vcpus()
return [[], []]
def get_autostart(self):
return self._backend.autostart()
def set_autostart(self, val):
if self.get_autostart() == val:
return
self._backend.setAutostart(val)
def job_info(self):
return self._backend.jobInfo()
def abort_job(self):
self._backend.abortJob()
def open_console(self, devname, stream, flags=0):
return self._backend.openConsole(devname, stream, flags)
########################
# XML Parsing routines #
########################
def is_container(self):
return self._get_guest().os.is_container()
def is_xenpv(self):
return self._get_guest().os.is_xenpv()
def is_hvm(self):
return self._get_guest().os.is_hvm()
def get_uuid(self):
return self.uuid
def get_abi_type(self):
return self._get_guest().os.os_type
def get_hv_type(self):
return self._get_guest().type
def get_pretty_hv_type(self):
return uihelpers.pretty_hv(self.get_abi_type(), self.get_hv_type())
def get_arch(self):
return self._get_guest().os.arch
def get_init(self):
return self._get_guest().os.init
def get_emulator(self):
return self._get_guest().emulator
def get_acpi(self):
return self._get_guest().features["acpi"]
def get_apic(self):
return self._get_guest().features["apic"]
def get_clock(self):
return self._get_guest().clock.offset
def get_machtype(self):
return self._get_guest().os.machine
def get_description(self):
# Always show the inactive <description>, let's us fake hotplug
# for a field that's strictly metadata
return self._get_guest(inactive=True).description
def get_memory(self):
return int(self._get_guest().memory)
def maximum_memory(self):
return int(self._get_guest().maxmemory)
def vcpu_count(self):
return int(self._get_guest().vcpus)
def vcpu_max_count(self):
guest = self._get_guest()
has_xml_max = (guest.curvcpus != guest.vcpus)
if has_xml_max or not self.is_active():
return guest.vcpus
if self._startup_vcpus is None:
self._startup_vcpus = int(self.vcpu_count())
return int(self._startup_vcpus)
def vcpu_pinning(self):
return self._get_guest().cpuset or ""
def get_cpu_config(self):
return self._get_guest().cpu
def get_boot_device(self):
return self._get_guest().os.bootorder
def get_boot_menu(self):
guest = self._get_guest()
return bool(guest.os.enable_bootmenu)
def get_boot_kernel_info(self):
guest = self._get_guest()
kernel = guest.os.kernel
initrd = guest.os.initrd
args = guest.os.kernel_args
return (kernel, initrd, args)
def get_seclabel(self):
seclabel = self._get_guest().seclabel
model = seclabel.model
t = seclabel.type or "dynamic"
label = seclabel.label or ""
relabel = getattr(seclabel, "relabel", None)
if relabel is not None:
if relabel == "yes":
relabel = True
else:
relabel = False
return [model, t, label, relabel]
# XML Device listing
def get_serial_devs(self):
devs = self.get_char_devices()
devlist = []
devlist += [x for x in devs if x.virtual_device_type == "serial"]
devlist += [x for x in devs if x.virtual_device_type == "console"]
return devlist
def _build_device_list(self, device_type,
refresh_if_nec=True, inactive=False):
guest = self._get_guest(refresh_if_nec=refresh_if_nec,
inactive=inactive)
devs = guest.get_devices(device_type)
count = 0
for dev in devs:
dev.vmmindex = count
count += 1
return devs
def get_network_devices(self, refresh_if_nec=True):
return self._build_device_list("interface", refresh_if_nec)
def get_video_devices(self):
return self._build_device_list("video")
def get_hostdev_devices(self):
return self._build_device_list("hostdev")
def get_watchdog_devices(self):
return self._build_device_list("watchdog")
def get_input_devices(self):
return self._build_device_list("input")
def get_graphics_devices(self):
return self._build_device_list("graphics")
def get_sound_devices(self):
return self._build_device_list("sound")
def get_controller_devices(self):
return self._build_device_list("controller")
def get_filesystem_devices(self):
return self._build_device_list("filesystem")
def get_smartcard_devices(self):
return self._build_device_list("smartcard")
def get_redirdev_devices(self):
return self._build_device_list("redirdev")
def get_tpm_devices(self):
return self._build_device_list("tpm")
def get_disk_devices(self, refresh_if_nec=True, inactive=False):
devs = self._build_device_list("disk", refresh_if_nec, inactive)
# Iterate through all disks and calculate what number they are
# HACK: We are making a variable in VirtualDisk to store the index
idx_mapping = {}
for dev in devs:
devtype = dev.device
bus = dev.bus
key = devtype + (bus or "")
if key not in idx_mapping:
idx_mapping[key] = 1
dev.disk_bus_index = idx_mapping[key]
idx_mapping[key] += 1
return devs
def get_char_devices(self):
devs = []
serials = self._build_device_list("serial")
parallels = self._build_device_list("parallel")
consoles = self._build_device_list("console")
channels = self._build_device_list("channel")
for devicelist in [serials, parallels, consoles, channels]:
devs.extend(devicelist)
# Don't display <console> if it's just a duplicate of <serial>
if (len(consoles) > 0 and len(serials) > 0):
con = consoles[0]
ser = serials[0]
if (con.type == ser.type and
con.target_type is None or con.target_type == "serial"):
ser.virtmanager_console_dup = con
devs.remove(con)
return devs
############################
# Domain lifecycle methods #
############################
# All these methods are usually run asynchronously from threads, so
# let's be extra careful and have anything which might touch UI
# or GObject.props invoked in an idle callback
def _unregister_reboot_listener(self):
if self.reboot_listener is None:
return
try:
self.idle_add(self.disconnect, self.reboot_listener)
self.reboot_listener = None
except:
pass
def manual_reboot(self):
"""
Attempt a manual reboot by invoking 'shutdown', then listen
for a state change and restart the VM
"""
def reboot_listener(vm, ignore1, ignore2, self):
if vm.is_crashed():
# Abandon reboot plans
self.reboot_listener = None
return True
if not vm.is_shutoff():
# Not shutoff, continue waiting
return
try:
logging.debug("Fake reboot detected shutdown. Restarting VM")
vm.startup()
except:
logging.exception("Fake reboot startup failed")
self.reboot_listener = None
return True
self._unregister_reboot_listener()
# Request a shutdown
self.shutdown()
def add_reboot():
self.reboot_listener = self.connect_opt_out("status-changed",
reboot_listener, self)
self.idle_add(add_reboot)
def shutdown(self):
self._install_abort = True
self._unregister_reboot_listener()
self._backend.shutdown()
self.idle_add(self.force_update_status)
def reboot(self):
self._install_abort = True
self._backend.reboot(0)
self.idle_add(self.force_update_status)
def destroy(self):
self._install_abort = True
self._unregister_reboot_listener()
self._backend.destroy()
self.idle_add(self.force_update_status)
def reset(self):
self._install_abort = True
self._backend.reset(0)
self.idle_add(self.force_update_status)
def startup(self):
if self.get_cloning():
raise RuntimeError(_("Cannot start guest while cloning "
"operation in progress"))
pre_startup_ret = []
self.emit("pre-startup", pre_startup_ret)
for error in pre_startup_ret:
raise RuntimeError(error)
self._backend.create()
self.idle_add(self.force_update_status)
def suspend(self):
self._backend.suspend()
self.idle_add(self.force_update_status)
def delete(self):
try:
self.removeSavedImage()
except:
logging.exception("Failed to remove managed save state")
self._backend.undefine()
def resume(self):
if self.get_cloning():
raise RuntimeError(_("Cannot resume guest while cloning "
"operation in progress"))
self._backend.resume()
self.idle_add(self.force_update_status)
def hasSavedImage(self):
if not self.managedsave_supported:
return False
return self._backend.hasManagedSaveImage(0)
def removeSavedImage(self):
if not self.hasSavedImage():
return
self._backend.managedSaveRemove(0)
def save(self, filename=None, meter=None):
self._install_abort = True
if meter:
start_job_progress_thread(self, meter, _("Saving domain to disk"))
if not self.managedsave_supported:
self._backend.save(filename)
else:
self._backend.managedSave(0)
self.idle_add(self.force_update_status)
def support_downtime(self):
return self.conn.check_domain_support(self._backend,
self.conn.SUPPORT_DOMAIN_MIGRATE_DOWNTIME)
def migrate_set_max_downtime(self, max_downtime, flag=0):
self._backend.migrateSetMaxDowntime(max_downtime, flag)
def migrate(self, destconn, interface=None, rate=0,
live=False, secure=False, meter=None):
self._install_abort = True
newname = None
flags = 0
if self.status() == libvirt.VIR_DOMAIN_RUNNING and live:
flags |= libvirt.VIR_MIGRATE_LIVE
if secure:
flags |= libvirt.VIR_MIGRATE_PEER2PEER
flags |= libvirt.VIR_MIGRATE_TUNNELLED
destconn = destconn.get_backend().libvirtconn
logging.debug("Migrating: conn=%s flags=%s dname=%s uri=%s rate=%s",
destconn, flags, newname, interface, rate)
if meter:
start_job_progress_thread(self, meter, _("Migrating domain"))
self._backend.migrate(destconn, flags, newname, interface, rate)
def define_cb():
newxml = self.get_xml(inactive=True)
destconn.define_domain(newxml)
self.idle_add(define_cb)
# Don't schedule any conn update, migrate dialog handles it for us
###################
# Stats helpers ###
###################
def _sample_mem_stats(self, info):
curmem = info[2]
if not self.is_active():
curmem = 0
pcentCurrMem = curmem * 100.0 / self.maximum_memory()
pcentCurrMem = max(0.0, min(pcentCurrMem, 100.0))
return pcentCurrMem, curmem
def _sample_cpu_stats(self, info, now):
prevCpuTime = 0
prevTimestamp = 0
cpuTime = 0
cpuTimeAbs = 0
pcentHostCpu = 0
pcentGuestCpu = 0
if len(self.record) > 0:
prevTimestamp = self.record[0]["timestamp"]
prevCpuTime = self.record[0]["cpuTimeAbs"]
if not (info[0] in [libvirt.VIR_DOMAIN_SHUTOFF,
libvirt.VIR_DOMAIN_CRASHED]):
guestcpus = info[3]
cpuTime = info[4] - prevCpuTime
cpuTimeAbs = info[4]
hostcpus = self.conn.host_active_processor_count()
pcentbase = (((cpuTime) * 100.0) /
((now - prevTimestamp) * 1000.0 * 1000.0 * 1000.0))
pcentHostCpu = pcentbase / hostcpus
pcentGuestCpu = pcentbase / guestcpus
pcentHostCpu = max(0.0, min(100.0, pcentHostCpu))
pcentGuestCpu = max(0.0, min(100.0, pcentGuestCpu))
return cpuTime, cpuTimeAbs, pcentHostCpu, pcentGuestCpu
def _get_cur_rate(self, what):
if len(self.record) > 1:
ret = (float(self.record[0][what] -
self.record[1][what]) /
float(self.record[0]["timestamp"] -
self.record[1]["timestamp"]))
else:
ret = 0.0
return max(ret, 0, 0) # avoid negative values at poweroff
def _set_max_rate(self, record, what):
if record[what] > self.maxRecord[what]:
self.maxRecord[what] = record[what]
def _get_max_rate(self, name1, name2):
return float(max(self.maxRecord[name1], self.maxRecord[name2]))
def _get_record_helper(self, record_name):
if len(self.record) == 0:
return 0
return self.record[0][record_name]
def _vector_helper(self, record_name):
vector = []
stats = self.record
for i in range(self.config.get_stats_history_length() + 1):
if i < len(stats):
vector.append(stats[i][record_name] / 100.0)
else:
vector.append(0)
return vector
def _in_out_vector_helper(self, name1, name2, ceil):
vector = []
stats = self.record
if ceil is None:
ceil = self._get_max_rate(name1, name2)
maxlen = self.config.get_stats_history_length()
for n in [name1, name2]:
for i in range(maxlen + 1):
if i < len(stats):
vector.append(float(stats[i][n]) / ceil)
else:
vector.append(0.0)
return vector
def in_out_vector_limit(self, data, limit):
l = len(data) / 2
end = min(l, limit)
if l > limit:
data = data[0:end] + data[l:l + end]
return [(x + y) / 2 for x, y in zip(data[0:end], data[end:end * 2])]
def toggle_sample_network_traffic(self):
self._enable_net_poll = self.config.get_stats_enable_net_poll()
if self._enable_net_poll and len(self.record) > 1:
rxBytes, txBytes = self._sample_network_traffic()
self.record[0]["netRxKB"] = rxBytes / 1024
self.record[0]["netTxKB"] = txBytes / 1024
def toggle_sample_disk_io(self):
self._enable_disk_poll = self.config.get_stats_enable_disk_poll()
if self._enable_disk_poll and len(self.record) > 1:
rdBytes, wrBytes = self._sample_disk_io()
self.record[0]["diskRdKB"] = rdBytes / 1024
self.record[0]["diskWrKB"] = wrBytes / 1024
###################
# Stats accessors #
###################
def stats_memory(self):
return self._get_record_helper("curmem")
def cpu_time(self):
return self._get_record_helper("cpuTime")
def host_cpu_time_percentage(self):
return self._get_record_helper("cpuHostPercent")
def guest_cpu_time_percentage(self):
return self._get_record_helper("cpuGuestPercent")
def network_rx_rate(self):
return self._get_record_helper("netRxRate")
def network_tx_rate(self):
return self._get_record_helper("netTxRate")
def disk_read_rate(self):
return self._get_record_helper("diskRdRate")
def disk_write_rate(self):
return self._get_record_helper("diskWrRate")
def get_memory_pretty(self):
return util.pretty_mem(self.get_memory())
def maximum_memory_pretty(self):
return util.pretty_mem(self.maximum_memory())
def network_traffic_rate(self):
return self.network_tx_rate() + self.network_rx_rate()
def network_traffic_max_rate(self):
return self._get_max_rate("netRxRate", "netTxRate")
def disk_io_rate(self):
return self.disk_read_rate() + self.disk_write_rate()
def disk_io_max_rate(self):
return self._get_max_rate("diskRdRate", "diskWrRate")
def host_cpu_time_vector(self):
return self._vector_helper("cpuHostPercent")
def guest_cpu_time_vector(self):
return self._vector_helper("cpuGuestPercent")
def stats_memory_vector(self):
return self._vector_helper("currMemPercent")
def network_traffic_vector(self, ceil=None):
return self._in_out_vector_helper("netRxRate", "netTxRate", ceil)
def disk_io_vector(self, ceil=None):
return self._in_out_vector_helper("diskRdRate", "diskWrRate", ceil)
def host_cpu_time_vector_limit(self, limit):
cpudata = self.host_cpu_time_vector()
if len(cpudata) > limit:
cpudata = cpudata[0:limit]
return cpudata
def guest_cpu_time_vector_limit(self, limit):
cpudata = self.guest_cpu_time_vector()
if len(cpudata) > limit:
cpudata = cpudata[0:limit]
return cpudata
def network_traffic_vector_limit(self, limit, ceil=None):
return self.in_out_vector_limit(self.network_traffic_vector(ceil),
limit)
def disk_io_vector_limit(self, limit, ceil=None):
return self.in_out_vector_limit(self.disk_io_vector(ceil), limit)
###################
# Status helpers ##
###################
def _update_start_vcpus(self, ignore, oldstatus, status):
ignore = status
if oldstatus not in [libvirt.VIR_DOMAIN_SHUTDOWN,
libvirt.VIR_DOMAIN_SHUTOFF,
libvirt.VIR_DOMAIN_CRASHED]:
return
# Want to track the startup vcpu amount, which is the
# cap of how many VCPUs can be added
self._startup_vcpus = None
self.vcpu_max_count()
def run_status(self):
status = self.status()
if status == libvirt.VIR_DOMAIN_RUNNING:
return _("Running")
elif status == libvirt.VIR_DOMAIN_PAUSED:
return _("Paused")
elif status == libvirt.VIR_DOMAIN_SHUTDOWN:
return _("Shutting Down")
elif status == libvirt.VIR_DOMAIN_SHUTOFF:
if self.hasSavedImage():
return _("Saved")
else:
return _("Shutoff")
elif status == libvirt.VIR_DOMAIN_CRASHED:
return _("Crashed")
elif (hasattr(libvirt, "VIR_DOMAIN_PMSUSPENDED") and
status == libvirt.VIR_DOMAIN_PMSUSPENDED):
return _("Suspended")
logging.debug("Unknown status %d, returning 'Unknown'")
return _("Unknown")
def _normalize_status(self, status):
if status == libvirt.VIR_DOMAIN_NOSTATE:
return libvirt.VIR_DOMAIN_RUNNING
elif status == libvirt.VIR_DOMAIN_BLOCKED:
return libvirt.VIR_DOMAIN_RUNNING
return status
def is_active(self):
return not self.is_shutoff()
def is_shutoff(self):
return self.status() == libvirt.VIR_DOMAIN_SHUTOFF
def is_crashed(self):
return self.status() == libvirt.VIR_DOMAIN_CRASHED
def is_stoppable(self):
return self.status() in [libvirt.VIR_DOMAIN_RUNNING,
libvirt.VIR_DOMAIN_PAUSED]
def is_destroyable(self):
return (self.is_stoppable() or
self.status() in [libvirt.VIR_DOMAIN_CRASHED])
def is_runable(self):
return self.status() in [libvirt.VIR_DOMAIN_SHUTOFF,
libvirt.VIR_DOMAIN_CRASHED]
def is_pauseable(self):
return self.status() in [libvirt.VIR_DOMAIN_RUNNING]
def is_unpauseable(self):
return self.status() in [libvirt.VIR_DOMAIN_PAUSED]
def is_paused(self):
return self.status() in [libvirt.VIR_DOMAIN_PAUSED]
def run_status_icon_name(self):
status_icons = {
libvirt.VIR_DOMAIN_BLOCKED: "state_running",
libvirt.VIR_DOMAIN_CRASHED: "state_shutoff",
libvirt.VIR_DOMAIN_PAUSED: "state_paused",
libvirt.VIR_DOMAIN_RUNNING: "state_running",
libvirt.VIR_DOMAIN_SHUTDOWN: "state_shutoff",
libvirt.VIR_DOMAIN_SHUTOFF: "state_shutoff",
libvirt.VIR_DOMAIN_NOSTATE: "state_running",
# VIR_DOMAIN_PMSUSPENDED
7: "state_paused",
}
status = self.status()
if status not in status_icons:
logging.debug("Unknown status %d, using NOSTATE")
status = libvirt.VIR_DOMAIN_NOSTATE
return status_icons[status]
def force_update_status(self):
"""
Fetch current domain state and clear status cache
"""
try:
info = self._backend.info()
self._update_status(info[0])
except libvirt.libvirtError, e:
if uihelpers.exception_is_libvirt_error(e, "VIR_ERR_NO_DOMAIN"):
return
raise
def _update_status(self, status):
"""
Internal helper to change cached status to 'status' and signal
clients if we actually changed state
"""
status = self._normalize_status(status)
if status == self.lastStatus:
return
oldstatus = self.lastStatus
self.lastStatus = status
# Send 'config-changed' before a status-update, so users
# are operating with fresh XML
self.refresh_xml()
self.idle_emit("status-changed", oldstatus, status)
def inspection_data_updated(self):
self.idle_emit("inspection-changed")
##################
# config helpers #
##################
def on_console_scaling_changed(self, *args, **kwargs):
return self.config.listen_pervm(self.uuid, "/scaling",
*args, **kwargs)
def set_console_scaling(self, value):
self.config.set_pervm(self.uuid, "/scaling", value)
def get_console_scaling(self):
ret = self.config.get_pervm(self.uuid, "/scaling")
if ret == -1:
return self.config.get_console_scaling()
return ret
def set_details_window_size(self, w, h):
self.config.set_pervm(self.uuid, "/vm-window-size", (w, h))
def get_details_window_size(self):
ret = self.config.get_pervm(self.uuid, "/vm-window-size")
return ret
def get_console_password(self):
return self.config.get_pervm(self.uuid, "/console-password")
def set_console_password(self, username, keyid):
return self.config.set_pervm(self.uuid, "/console-password",
(username, keyid))
###################
# Polling helpers #
###################
def _sample_network_traffic(self):
rx = 0
tx = 0
if (not self._stats_net_supported or
not self._enable_net_poll or
not self.is_active()):
return rx, tx
for netdev in self.get_network_devices(refresh_if_nec=False):
dev = netdev.target_dev
if not dev:
continue
if dev in self._stats_net_skip:
continue
try:
io = self._backend.interfaceStats(dev)
if io:
rx += io[0]
tx += io[4]
except libvirt.libvirtError, err:
if util.is_error_nosupport(err):
logging.debug("Net stats not supported: %s", err)
self._stats_net_supported = False
else:
logging.error("Error reading net stats for "
"'%s' dev '%s': %s",
self.get_name(), dev, err)
if self.is_active():
logging.debug("Adding %s to skip list", dev)
self._stats_net_skip.append(dev)
else:
logging.debug("Aren't running, don't add to skiplist")
return rx, tx
def _sample_disk_io(self):
rd = 0
wr = 0
if (not self._stats_disk_supported or
not self._enable_disk_poll or
not self.is_active()):
return rd, wr
for disk in self.get_disk_devices(refresh_if_nec=False):
dev = disk.target
if not dev:
continue
if dev in self._stats_disk_skip:
continue
try:
io = self._backend.blockStats(dev)
if io:
rd += io[1]
wr += io[3]
except libvirt.libvirtError, err:
if util.is_error_nosupport(err):
logging.debug("Disk stats not supported: %s", err)
self._stats_disk_supported = False
else:
logging.error("Error reading disk stats for "
"'%s' dev '%s': %s",
self.get_name(), dev, err)
if self.is_active():
logging.debug("Adding %s to skip list", dev)
self._stats_disk_skip.append(dev)
else:
logging.debug("Aren't running, don't add to skiplist")
return rd, wr
def tick(self, stats_update=True):
self._invalidate_xml()
info = self._backend.info()
if stats_update:
self._tick_stats(info)
self._update_status(info[0])
if stats_update:
self.idle_emit("resources-sampled")
def _tick_stats(self, info):
expected = self.config.get_stats_history_length()
current = len(self.record)
if current > expected:
del self.record[expected:current]
# Xen reports complete crap for Dom0 max memory
# (ie MAX_LONG) so lets clamp it to the actual
# physical RAM in machine which is the effective
# real world limit
if (self.conn.is_xen() and
self.is_management_domain()):
info[1] = self.conn.host_memory_size()
now = time.time()
(cpuTime, cpuTimeAbs,
pcentHostCpu, pcentGuestCpu) = self._sample_cpu_stats(info, now)
pcentCurrMem, curmem = self._sample_mem_stats(info)
rdBytes, wrBytes = self._sample_disk_io()
rxBytes, txBytes = self._sample_network_traffic()
newStats = {
"timestamp": now,
"cpuTime": cpuTime,
"cpuTimeAbs": cpuTimeAbs,
"cpuHostPercent": pcentHostCpu,
"cpuGuestPercent": pcentGuestCpu,
"curmem": curmem,
"currMemPercent": pcentCurrMem,
"diskRdKB": rdBytes / 1024,
"diskWrKB": wrBytes / 1024,
"netRxKB": rxBytes / 1024,
"netTxKB": txBytes / 1024,
}
for r in ["diskRd", "diskWr", "netRx", "netTx"]:
newStats[r + "Rate"] = self._get_cur_rate(r + "KB")
self._set_max_rate(newStats, r + "Rate")
self.record.insert(0, newStats)
########################
# Libvirt domain class #
########################
class vmmDomainVirtinst(vmmDomain):
"""
Domain object backed by a virtinst Guest object.
Used for launching a details window for customizing a VM before install.
"""
def __init__(self, conn, backend, key):
vmmDomain.__init__(self, conn, backend, key)
self._orig_xml = None
def get_name(self):
return self._backend.name
def get_id(self):
return -1
def hasSavedImage(self):
return False
def _XMLDesc(self, flags):
raise RuntimeError("Shouldn't be called")
def get_xml(self, inactive=False, refresh_if_nec=True):
ignore = inactive
ignore = refresh_if_nec
xml = self._backend.get_install_xml(install=False)
if not self._orig_xml:
self._orig_xml = xml
return xml
# Internal XML implementations
def _get_guest(self, inactive=False, refresh_if_nec=True):
# Make sure XML is up2date
self.get_xml()
return self._backend
def _define(self, newxml):
ignore = newxml
self._orig_xml = None
self.emit("config-changed")
def _redefine_xml(self, newxml):
# We need to cache origxml in order to have something to diff against
origxml = self._orig_xml or self.get_xml(inactive=True)
return self._redefine_helper(origxml, newxml)
def refresh_xml(self, forcesignal=False):
# No caching, so no refresh needed
return
def get_autostart(self):
return self._backend.autostart
def set_autostart(self, val):
self._backend.autostart = bool(val)
self.emit("config-changed")
def define_name(self, newname):
def change(guest):
guest.name = str(newname)
return self._redefine_guest(change)
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