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 value = 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> <value> 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) > 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] 58 else: 59 usage_error("not enough arguments") 60 61 srv = QEMUMonitorProtocol(socket_path) 62 srv.connect() 63 64 print(srv.command('qom-set', path=path, property=prop, value=value)) 65