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import channel
import controller
from messages import *
class DomainControllerFactory(controller.ControllerFactory):
"""Factory for creating domain controllers.
"""
def createInstance(self, dom):
d = DomainController(self, dom)
self.addInstance(d)
return d
def getInstanceByDom(self, dom):
for inst in self.instances.values():
if inst.dom == dom:
return inst
inst = self.createInstance(dom)
return inst
class DomainController(controller.Controller):
"""Generic controller for a domain.
"""
reasons = {'poweroff' : 'shutdown_poweroff_t',
'reboot' : 'shutdown_reboot_t',
'suspend' : 'shutdown_suspend_t' }
def __init__(self, factory, dom):
controller.Controller.__init__(self, factory, dom)
self.majorTypes = [ CMSG_SHUTDOWN ]
self.registerChannel()
print 'DomainController>', self, self.channel, self.idx
def shutdown(self, reason):
msgtype = self.reasons.get(reason)
if not msgtype:
raise ValueError('invalid reason:' + reason)
msg = packMsg(msgtype, {})
self.writeRequest(msg)
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