Last change
on this file since 791 was
717,
checked in by price, 16 years ago
|
xenstore isn't even consistent in what happens on error
Usually when the VM is gone and xsc.ls(, '/vm/..uuid..') would
return empty, an xsc.ls(, '/vm/..uuid../start_time') returns None.
But sometimes it throws an xs.lowlevel.xs.Error, saying 22,
'Invalid argument', instead.
|
-
Property svn:executable set to
*
|
File size:
1.3 KB
|
Rev | Line | |
---|
[531] | 1 | #!/usr/bin/python |
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[122] | 2 | |
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[531] | 3 | import sys |
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[533] | 4 | import time |
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[531] | 5 | sys.path.insert(0, '/usr/lib/xen-3.1-1/lib/python') |
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[716] | 6 | from xen.lowlevel import xs |
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[531] | 7 | |
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[716] | 8 | xsc = xs.xs() |
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[531] | 9 | |
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| 10 | def live_vms(): |
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[716] | 11 | domids = set(xsc.ls('', '/local/domain')) |
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[533] | 12 | domids.discard('0') |
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[531] | 13 | |
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| 14 | vms = dict() |
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| 15 | |
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| 16 | for domid in domids: |
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[652] | 17 | try: |
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| 18 | name, data = get_dom(int(domid)) |
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[717] | 19 | except (xs.Error, TypeError): |
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[654] | 20 | continue # went down since we started |
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[531] | 21 | if name.startswith('d_'): |
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| 22 | name = name[2:] |
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| 23 | vms[name] = data |
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| 24 | return vms |
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| 25 | |
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| 26 | def get_dom(domid): |
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[716] | 27 | name = xsc.read('', '/local/domain/%d/name' % domid) |
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[531] | 28 | data = dict() |
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| 29 | data['domid'] = domid |
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| 30 | # presence of a graphical console |
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[716] | 31 | data['console'] = xsc.read('', '/local/domain/%d/device/vfb/0/state' % domid) |
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[531] | 32 | # uptime |
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[716] | 33 | data['vm'] = xsc.read('', '/local/domain/%d/vm' % domid) |
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| 34 | data['start_time'] = float(xsc.read('', '%s/start_time' % data['vm'])) |
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[533] | 35 | data['uptime'] = time.time()-data['start_time'] |
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[531] | 36 | |
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| 37 | return name, data |
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| 38 | |
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| 39 | if __name__ == '__main__': |
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| 40 | vms = live_vms() |
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[553] | 41 | if '--json' in sys.argv[1:]: |
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| 42 | import cjson |
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| 43 | print cjson.encode(vms) |
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| 44 | elif '--pickle' in sys.argv[1:]: |
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| 45 | import cPickle |
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| 46 | cPickle.dump(vms, sys.stdout, cPickle.HIGHEST_PROTOCOL) |
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| 47 | else: |
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| 48 | import yaml |
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[564] | 49 | print yaml.dump(vms, Dumper=yaml.CSafeDumper, default_flow_style=False) |
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