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Diffstat (limited to 'python/qemu/utils/qom_common.py')
-rw-r--r-- | python/qemu/utils/qom_common.py | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/python/qemu/utils/qom_common.py b/python/qemu/utils/qom_common.py index dd2c8b1..ab21a4d 100644 --- a/python/qemu/utils/qom_common.py +++ b/python/qemu/utils/qom_common.py @@ -65,6 +65,52 @@ class ObjectPropertyInfo: return self.type.startswith('link<') +class ObjectPropertyValue: + """ + Represents a property return from e.g. qom-tree-get + """ + def __init__(self, name: str, type_: str, value: object): + self.name = name + self.type = type_ + self.value = value + + @classmethod + def make(cls, value: Dict[str, Any]) -> 'ObjectPropertyValue': + """ + Build an ObjectPropertyValue from a Dict with an unknown shape. + """ + assert value.keys() >= {'name', 'type'} + assert value.keys() <= {'name', 'type', 'value'} + return cls(value['name'], value['type'], value.get('value')) + + @property + def child(self) -> bool: + """Is this property a child property?""" + return self.type.startswith('child<') + + +class ObjectPropertiesValues: + """ + Represents the return type from e.g. qom-list-get + """ + # pylint: disable=too-few-public-methods + + def __init__(self, properties: List[ObjectPropertyValue]) -> None: + self.properties = properties + + @classmethod + def make(cls, value: Dict[str, Any]) -> 'ObjectPropertiesValues': + """ + Build an ObjectPropertiesValues from a Dict with an unknown shape. + """ + assert value.keys() == {'properties'} + props = [ObjectPropertyValue(item['name'], + item['type'], + item.get('value')) + for item in value['properties']] + return cls(props) + + CommandT = TypeVar('CommandT', bound='QOMCommand') @@ -145,6 +191,15 @@ class QOMCommand: assert isinstance(rsp, list) return [ObjectPropertyInfo.make(x) for x in rsp] + def qom_list_get(self, paths: List[str]) -> List[ObjectPropertiesValues]: + """ + :return: a strongly typed list from the 'qom-list-get' command. + """ + rsp = self.qmp.cmd('qom-list-get', paths=paths) + # qom-list-get returns List[ObjectPropertiesValues] + assert isinstance(rsp, list) + return [ObjectPropertiesValues.make(x) for x in rsp] + @classmethod def command_runner( cls: Type[CommandT], |