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https://github.com/virt-manager/virt-manager.git
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5e9e444dec
The goal here is to reduce the amount of tick() polling that we do by default. For things like pools, networks, and interfaces, the constant polling is not very helpful and causes CPU churn and slowness for remote connections. Switch to a more on demand style. Pages that want new information for these objects now request a priority tick that only refreshes the info we want. This isn't perfect, but neither was the previous solution in the face of things like XML updates behind our back. The real solution here is libvirt event support across the board.
50 lines
1.5 KiB
Python
50 lines
1.5 KiB
Python
#
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# Copyright (C) 2011 Red Hat, Inc.
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# Copyright (C) 2011 Cole Robinson <crobinso@redhat.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301 USA.
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#
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import virtinst
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from virtManager.libvirtobject import vmmLibvirtObject
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class vmmNodeDevice(vmmLibvirtObject):
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def __init__(self, conn, backend, key):
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vmmLibvirtObject.__init__(self, conn, backend, key)
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self._name = key
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self._virtinst_obj = None
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self.get_virtinst_obj()
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def _XMLDesc(self, flags):
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return self._backend.XMLDesc(flags)
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def get_name(self):
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return self._name
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def is_active(self):
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return True
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def get_virtinst_obj(self):
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if not self._virtinst_obj:
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self._virtinst_obj = virtinst.NodeDeviceParser.parse(
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self._backend.XMLDesc(0))
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return self._virtinst_obj
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def tick(self):
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pass
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