source: trunk/packages/sipb-xen-remctl-auto/files/usr/sbin/sipb-xen-listvms @ 652

Last change on this file since 652 was 652, checked in by price, 16 years ago

fix a race based on rwbarton's error message

  • Property svn:executable set to *
File size: 1.3 KB
Line 
1#!/usr/bin/python
2
3import sys
4import time
5sys.path.insert(0, '/usr/lib/xen-3.1-1/lib/python')
6from xen.lowlevel.xs import xs
7
8trans = xs()
9
10def live_vms():
11    domids = set(trans.ls('', '/local/domain'))
12    domids.discard('0')
13
14    vms = dict()
15
16    for domid in domids:
17        try:
18            name, data = get_dom(int(domid))
19        except ValueError:
20            pass # went down since we started
21        if name.startswith('d_'):
22            name = name[2:]
23            vms[name] = data
24    return vms
25
26def get_dom(domid):
27    name = trans.read('', '/local/domain/%d/name' % domid)
28    data = dict()
29    data['domid'] = domid
30    # presence of a graphical console
31    data['console'] = trans.read('', '/local/domain/%d/device/vfb/0/state' % domid)
32    # uptime
33    data['vm'] = trans.read('', '/local/domain/%d/vm' % domid)
34    data['start_time'] = float(trans.read('', '%s/start_time' % data['vm']))
35    data['uptime'] = time.time()-data['start_time']
36   
37    return name, data
38
39if __name__ == '__main__':
40    vms = live_vms()
41    if '--json' in sys.argv[1:]:
42        import cjson
43        print cjson.encode(vms)
44    elif '--pickle' in sys.argv[1:]:
45        import cPickle
46        cPickle.dump(vms, sys.stdout, cPickle.HIGHEST_PROTOCOL)
47    else:
48        import yaml
49        print yaml.dump(vms, Dumper=yaml.CSafeDumper, default_flow_style=False)
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