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-rw-r--r--python/qemu/qmp/qom.py273
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diff --git a/python/qemu/qmp/qom.py b/python/qemu/qmp/qom.py
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--- a/python/qemu/qmp/qom.py
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-"""
-QEMU Object Model testing tools.
-
-usage: qom [-h] {set,get,list,tree,fuse} ...
-
-Query and manipulate QOM data
-
-optional arguments:
- -h, --help show this help message and exit
-
-QOM commands:
- {set,get,list,tree,fuse}
- set Set a QOM property value
- get Get a QOM property value
- list List QOM properties at a given path
- tree Show QOM tree from a given path
- fuse Mount a QOM tree as a FUSE filesystem
-"""
-##
-# Copyright John Snow 2020, for Red Hat, Inc.
-# Copyright IBM, Corp. 2011
-#
-# Authors:
-# John Snow <jsnow@redhat.com>
-# Anthony Liguori <aliguori@amazon.com>
-#
-# This work is licensed under the terms of the GNU GPL, version 2 or later.
-# See the COPYING file in the top-level directory.
-#
-# Based on ./scripts/qmp/qom-[set|get|tree|list]
-##
-
-import argparse
-
-from qemu.aqmp import ExecuteError
-
-from .qom_common import QOMCommand
-
-
-try:
- from .qom_fuse import QOMFuse
-except ModuleNotFoundError as _err:
- if _err.name != 'fuse':
- raise
-else:
- assert issubclass(QOMFuse, QOMCommand)
-
-
-class QOMSet(QOMCommand):
- """
- QOM Command - Set a property to a given value.
-
- usage: qom-set [-h] [--socket SOCKET] <path>.<property> <value>
-
- Set a QOM property value
-
- positional arguments:
- <path>.<property> QOM path and property, separated by a period '.'
- <value> new QOM property value
-
- optional arguments:
- -h, --help show this help message and exit
- --socket SOCKET, -s SOCKET
- QMP socket path or address (addr:port). May also be
- set via QMP_SOCKET environment variable.
- """
- name = 'set'
- help = 'Set a QOM property value'
-
- @classmethod
- def configure_parser(cls, parser: argparse.ArgumentParser) -> None:
- super().configure_parser(parser)
- cls.add_path_prop_arg(parser)
- parser.add_argument(
- 'value',
- metavar='<value>',
- action='store',
- help='new QOM property value'
- )
-
- def __init__(self, args: argparse.Namespace):
- super().__init__(args)
- self.path, self.prop = args.path_prop.rsplit('.', 1)
- self.value = args.value
-
- def run(self) -> int:
- rsp = self.qmp.command(
- 'qom-set',
- path=self.path,
- property=self.prop,
- value=self.value
- )
- print(rsp)
- return 0
-
-
-class QOMGet(QOMCommand):
- """
- QOM Command - Get a property's current value.
-
- usage: qom-get [-h] [--socket SOCKET] <path>.<property>
-
- Get a QOM property value
-
- positional arguments:
- <path>.<property> QOM path and property, separated by a period '.'
-
- optional arguments:
- -h, --help show this help message and exit
- --socket SOCKET, -s SOCKET
- QMP socket path or address (addr:port). May also be
- set via QMP_SOCKET environment variable.
- """
- name = 'get'
- help = 'Get a QOM property value'
-
- @classmethod
- def configure_parser(cls, parser: argparse.ArgumentParser) -> None:
- super().configure_parser(parser)
- cls.add_path_prop_arg(parser)
-
- def __init__(self, args: argparse.Namespace):
- super().__init__(args)
- try:
- tmp = args.path_prop.rsplit('.', 1)
- except ValueError as err:
- raise ValueError('Invalid format for <path>.<property>') from err
- self.path = tmp[0]
- self.prop = tmp[1]
-
- def run(self) -> int:
- rsp = self.qmp.command(
- 'qom-get',
- path=self.path,
- property=self.prop
- )
- if isinstance(rsp, dict):
- for key, value in rsp.items():
- print(f"{key}: {value}")
- else:
- print(rsp)
- return 0
-
-
-class QOMList(QOMCommand):
- """
- QOM Command - List the properties at a given path.
-
- usage: qom-list [-h] [--socket SOCKET] <path>
-
- List QOM properties at a given path
-
- positional arguments:
- <path> QOM path
-
- optional arguments:
- -h, --help show this help message and exit
- --socket SOCKET, -s SOCKET
- QMP socket path or address (addr:port). May also be
- set via QMP_SOCKET environment variable.
- """
- name = 'list'
- help = 'List QOM properties at a given path'
-
- @classmethod
- def configure_parser(cls, parser: argparse.ArgumentParser) -> None:
- super().configure_parser(parser)
- parser.add_argument(
- 'path',
- metavar='<path>',
- action='store',
- help='QOM path',
- )
-
- def __init__(self, args: argparse.Namespace):
- super().__init__(args)
- self.path = args.path
-
- def run(self) -> int:
- rsp = self.qom_list(self.path)
- for item in rsp:
- if item.child:
- print(f"{item.name}/")
- elif item.link:
- print(f"@{item.name}/")
- else:
- print(item.name)
- return 0
-
-
-class QOMTree(QOMCommand):
- """
- QOM Command - Show the full tree below a given path.
-
- usage: qom-tree [-h] [--socket SOCKET] [<path>]
-
- Show QOM tree from a given path
-
- positional arguments:
- <path> QOM path
-
- optional arguments:
- -h, --help show this help message and exit
- --socket SOCKET, -s SOCKET
- QMP socket path or address (addr:port). May also be
- set via QMP_SOCKET environment variable.
- """
- name = 'tree'
- help = 'Show QOM tree from a given path'
-
- @classmethod
- def configure_parser(cls, parser: argparse.ArgumentParser) -> None:
- super().configure_parser(parser)
- parser.add_argument(
- 'path',
- metavar='<path>',
- action='store',
- help='QOM path',
- nargs='?',
- default='/'
- )
-
- def __init__(self, args: argparse.Namespace):
- super().__init__(args)
- self.path = args.path
-
- def _list_node(self, path: str) -> None:
- print(path)
- items = self.qom_list(path)
- for item in items:
- if item.child:
- continue
- try:
- rsp = self.qmp.command('qom-get', path=path,
- property=item.name)
- print(f" {item.name}: {rsp} ({item.type})")
- except ExecuteError as err:
- print(f" {item.name}: <EXCEPTION: {err!s}> ({item.type})")
- print('')
- for item in items:
- if not item.child:
- continue
- if path == '/':
- path = ''
- self._list_node(f"{path}/{item.name}")
-
- def run(self) -> int:
- self._list_node(self.path)
- return 0
-
-
-def main() -> int:
- """QOM script main entry point."""
- parser = argparse.ArgumentParser(
- description='Query and manipulate QOM data'
- )
- subparsers = parser.add_subparsers(
- title='QOM commands',
- dest='command'
- )
-
- for command in QOMCommand.__subclasses__():
- command.register(subparsers)
-
- args = parser.parse_args()
-
- if args.command is None:
- parser.error('Command not specified.')
- return 1
-
- cmd_class = args.cmd_class
- assert isinstance(cmd_class, type(QOMCommand))
- return cmd_class.command_runner(args)
generated by cgit v1.1 at 2025-04-02 02:20:45 +0000