import sys
import time
sys.path.insert(0, '/usr/lib/xen-3.1-1/lib/python')
-from xen.lowlevel.xs import xs
-import yaml
+from xen.lowlevel import xs
-trans = xs()
+xsc = xs.xs()
def live_vms():
- domids = set(trans.ls('', '/local/domain'))
+ domids = set(xsc.ls('', '/local/domain'))
domids.discard('0')
vms = dict()
for domid in domids:
- name, data = get_dom(int(domid))
+ try:
+ name, data = get_dom(int(domid))
+ except (xs.Error, TypeError):
+ continue # went down since we started
if name.startswith('d_'):
name = name[2:]
vms[name] = data
return vms
def get_dom(domid):
- name = trans.read('', '/local/domain/%d/name' % domid)
+ name = xsc.read('', '/local/domain/%d/name' % domid)
data = dict()
data['domid'] = domid
# presence of a graphical console
- data['console'] = trans.read('', '/local/domain/%d/device/vfb/0/state' % domid)
+ data['console'] = xsc.read('', '/local/domain/%d/device/vfb/0/state' % domid)
# uptime
- data['vm'] = trans.read('', '/local/domain/%d/vm' % domid)
- data['start_time'] = float(trans.read('', '%s/start_time' % data['vm']))
+ data['vm'] = xsc.read('', '/local/domain/%d/vm' % domid)
+ data['start_time'] = float(xsc.read('', '%s/start_time' % data['vm']))
data['uptime'] = time.time()-data['start_time']
return name, data
if __name__ == '__main__':
vms = live_vms()
- print yaml.safe_dump(vms, default_flow_style=False)
+ if '--json' in sys.argv[1:]:
+ import cjson
+ print cjson.encode(vms)
+ elif '--pickle' in sys.argv[1:]:
+ import cPickle
+ cPickle.dump(vms, sys.stdout, cPickle.HIGHEST_PROTOCOL)
+ else:
+ import yaml
+ print yaml.dump(vms, Dumper=yaml.CSafeDumper, default_flow_style=False)