LXR qemu/scripts/qmp/qom-set

   1#!/usr/bin/python
   2##
   3# QEMU Object Model test tools
   4#
   5# Copyright IBM, Corp. 2011
   6#
   7# Authors:
   8#  Anthony Liguori   <aliguori@us.ibm.com>
   9#
  10# This work is licensed under the terms of the GNU GPL, version 2 or later.  See
  11# the COPYING file in the top-level directory.
  12##
  13
  14import sys
  15import os
  16from qmp import QEMUMonitorProtocol
  17
  18cmd, args = sys.argv[0], sys.argv[1:]
  19socket_path = None
  20path = None
  21prop = None
  22value = None
  23
  24def usage():
  25    return '''environment variables:
  26    QMP_SOCKET=<path | addr:port>
  27usage:
  28    %s [-h] [-s <QMP socket path | addr:port>] <path>.<property> <value>
  29''' % cmd
  30
  31def usage_error(error_msg = "unspecified error"):
  32    sys.stderr.write('%s\nERROR: %s\n' % (usage(), error_msg))
  33    exit(1)
  34
  35if len(args) > 0:
  36    if args[0] == "-h":
  37        print usage()
  38        exit(0);
  39    elif args[0] == "-s":
  40        try:
  41            socket_path = args[1]
  42        except:
  43            usage_error("missing argument: QMP socket path or address");
  44        args = args[2:]
  45
  46if not socket_path:
  47    if os.environ.has_key('QMP_SOCKET'):
  48        socket_path = os.environ['QMP_SOCKET']
  49    else:
  50        usage_error("no QMP socket path or address given");
  51
  52if len(args) > 1:
  53    try:
  54        path, prop = args[0].rsplit('.', 1)
  55    except:
  56        usage_error("invalid format for path/property/value")
  57    value = args[1]
  58else:
  59    usage_error("not enough arguments")
  60
  61srv = QEMUMonitorProtocol(socket_path)
  62srv.connect()
  63
  64print srv.command('qom-set', path=path, property=prop, value=sys.argv[2])
  65