def create_session(self, lock_type=library.LockType.shared, session=None):
"""Lock this machine
Arguments:
lock_type - see IMachine.lock_machine for details
session - optionally define a session object to lock this machine
against. If not defined, a new ISession object is
created to lock against
return an ISession object
"""
if session is None:
session = library.ISession()
# NOTE: The following hack handles the issue of unknown machine state.
# This occurs most frequently when a machine is powered off and
# in spite waiting for the completion event to end, the state of
# machine still raises the following Error:
# virtualbox.library.VBoxErrorVmError: 0x80bb0003 (Failed to \
# get a console object from the direct session (Unknown \
# Status 0x80BB0002))
error = None
for _ in range(10):
try:
self.lock_machine(session, lock_type)
except Exception as exc:
error = exc
time.sleep(1)
continue
else:
break
else:
if error is not None:
raise Exception("Failed to create clone - %s" % error)
return session
def launch_vm_process(self, session=None, type_p='gui', environment=''):
if session is None:
local_session = library.ISession()
else:
local_session = session
p = super(IMachine, self).launch_vm_process(local_session, type_p,
environment)
if session is None:
p.wait_for_completion(-1)
local_session.unlock_machine()
return p
def launch_vm_process(self, session=None, type_p="gui", environment=None):
if session is None:
local_session = library.ISession()
else:
local_session = session
environment_changes = []
if environment is not None:
# Split string of environment changes by new line symbol
if isinstance(environment, basestring):
environment_changes = environment.splitlines()
else:
environment_changes = environment
p = super(IMachine, self).launch_vm_process(local_session, type_p,
environment_changes)
if session is None:
p.wait_for_completion(-1)
local_session.unlock_machine()
return p
