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python/machine.py: upgrade vm.cmd() method 

The method is not popular in iotests, we prefer use vm.qmp() and then
check success by hand. But that's not optimal. To simplify movement to
vm.cmd() let's support same interface improvements like in vm.qmp().

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20231006154125.1068348-7-vsementsov@yandex-team.ru
Signed-off-by: John Snow <jsnow@redhat.com>
master
Vladimir Sementsov-Ogievskiy 2023-10-06 18:41:16 +03:00 committed by John Snow
parent 684750ab4f
commit 4e620ff48f
1 changed files with 11 additions and 1 deletions
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12
python/qemu/machine/machine.py
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@ -708,13 +708,23 @@ class QEMUMachine:
return ret
def cmd(self, cmd: str,
conv_keys: bool = True,
args_dict: Optional[Dict[str, object]] = None,
conv_keys: Optional[bool] = None,
**args: Any) -> QMPReturnValue:
"""
Invoke a QMP command.
On success return the response dict.
On failure raise an exception.
"""
if args_dict is not None:
assert not args
assert conv_keys is None
args = args_dict
conv_keys = False
if conv_keys is None:
conv_keys = True
qmp_args = self._qmp_args(conv_keys, args)
ret = self._qmp.cmd(cmd, **qmp_args)
if cmd == 'quit':