QMP/qom-get

   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
  14 import sys
  15 import os
  16 from qmp import QEMUMonitorProtocol
  17
  18 cmd, args = sys.argv[0], sys.argv[1:]
  19 socket_path = None
  20 path = None
  21 prop = None
  22
  23 def usage():
  24     return '''environment variables:
  25     QMP_SOCKET=<path | addr:port>
  26 usage:
  27     %s [-h] [-s <QMP socket path | addr:port>] <path>.<property>
  28 ''' % cmd
  29
  30 def usage_error(error_msg = "unspecified error"):
  31     sys.stderr.write('%s\nERROR: %s\n' % (usage(), error_msg))
  32     exit(1)
  33
  34 if len(args) > 0:
  35     if args[0] == "-h":
  36         print usage()
  37         exit(0);
  38     elif args[0] == "-s":
  39         try:
  40             socket_path = args[1]
  41         except:
  42             usage_error("missing argument: QMP socket path or address");
  43         args = args[2:]
  44
  45 if not socket_path:
  46     if os.environ.has_key('QMP_SOCKET'):
  47         socket_path = os.environ['QMP_SOCKET']
  48     else:
  49         usage_error("no QMP socket path or address given");
  50
  51 if len(args) > 0:
  52     try:
  53         path, prop = args[0].rsplit('.', 1)
  54     except:
  55         usage_error("invalid format for path/property/value")
  56 else:
  57     usage_error("not enough arguments")
  58
  59 srv = QEMUMonitorProtocol(socket_path)
  60 srv.connect()
  61
  62 rsp = srv.command('qom-get', path=path, property=prop)
  63 if type(rsp) == dict:
  64     for i in rsp.keys():
  65         print '%s: %s' % (i, rsp[i])
  66 else:
  67     print rsp