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# Copyright (C) 2015-2016 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from . automatedproperties import AutomatedProperties
from . utils import job_obj_path_generate
from . import cfg
from . cfg import JOB_INTERFACE
import dbus
import threading
# noinspection PyPep8Naming
class JobState ( object ) :
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def __init__ ( self , request = None ) :
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self . rlock = threading . RLock ( )
self . _percent = 0
self . _complete = False
self . _request = request
self . _cond = threading . Condition ( self . rlock )
self . _ec = 0
self . _stderr = ' '
# This is an lvm command that is just taking too long and doesn't
# support background operation
if self . _request :
# Faking the percentage when we don't have one
self . _percent = 1
@property
def Percent ( self ) :
with self . rlock :
return self . _percent
@Percent.setter
def Percent ( self , value ) :
with self . rlock :
self . _percent = value
@property
def Complete ( self ) :
with self . rlock :
if self . _request :
self . _complete = self . _request . is_done ( )
if self . _complete :
self . _percent = 100
return self . _complete
@Complete.setter
def Complete ( self , value ) :
with self . rlock :
self . _complete = value
self . _cond . notify_all ( )
@property
def GetError ( self ) :
with self . rlock :
if self . Complete :
if self . _request :
( rc , error ) = self . _request . get_errors ( )
return ( rc , str ( error ) )
else :
return ( self . _ec , self . _stderr )
else :
return ( - 1 , ' Job is not complete! ' )
def set_result ( self , ec , msg ) :
with self . rlock :
self . Complete = True
self . _ec = ec
self . _stderr = msg
def dtor ( self ) :
with self . rlock :
self . _request = None
def Wait ( self , timeout ) :
try :
with self . _cond :
# Check to see if we are done, before we wait
if not self . Complete :
if timeout != - 1 :
self . _cond . wait ( timeout )
else :
self . _cond . wait ( )
return self . Complete
except RuntimeError :
return False
@property
def Result ( self ) :
with self . rlock :
if self . _request :
return self . _request . result ( )
return ' / '
# noinspection PyPep8Naming
class Job ( AutomatedProperties ) :
_Percent_meta = ( ' y ' , JOB_INTERFACE )
_Complete_meta = ( ' b ' , JOB_INTERFACE )
_Result_meta = ( ' o ' , JOB_INTERFACE )
_GetError_meta = ( ' (is) ' , JOB_INTERFACE )
def __init__ ( self , request , job_state = None ) :
super ( Job , self ) . __init__ ( job_obj_path_generate ( ) )
self . set_interface ( JOB_INTERFACE )
if job_state :
self . state = job_state
else :
self . state = JobState ( request )
@property
def Percent ( self ) :
return self . state . Percent
@Percent.setter
def Percent ( self , value ) :
self . state . Percent = value
@property
def Complete ( self ) :
return self . state . Complete
@Complete.setter
def Complete ( self , value ) :
self . state . Complete = value
@property
def GetError ( self ) :
return self . state . GetError
def set_result ( self , ec , msg ) :
self . state . set_result ( ec , msg )
@dbus.service.method ( dbus_interface = JOB_INTERFACE )
def Remove ( self ) :
if self . state . Complete :
cfg . om . remove_object ( self , True )
self . state . dtor ( )
else :
raise dbus . exceptions . DBusException (
JOB_INTERFACE , ' Job is not complete! ' )
@dbus.service.method ( dbus_interface = JOB_INTERFACE ,
in_signature = ' i ' ,
out_signature = ' b ' )
def Wait ( self , timeout ) :
return self . state . Wait ( timeout )
@property
def Result ( self ) :
return self . state . Result
@property
def lvm_id ( self ) :
return str ( id ( self ) )
@property
def Uuid ( self ) :
import uuid
return uuid . uuid1 ( )