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