Revision 08a6c581 lib/locking.py

b/lib/locking.py
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#   - at levels LEVEL_NODE and LEVEL_INSTANCE reside node and instance locks.
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#   If you need more than one node, or more than one instance, acquire them at
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#   the same time.
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#  - level LEVEL_CONFIG contains the configuration lock, which you must acquire
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#  before reading or changing the config file.
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LEVEL_CLUSTER = 0
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LEVEL_NODE = 1
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LEVEL_INSTANCE = 2
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LEVEL_CONFIG = 3
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LEVELS = [LEVEL_CLUSTER,


  		





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          LEVEL_NODE,


  		





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          LEVEL_INSTANCE,


  		





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          LEVEL_CONFIG]


  		





  
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          LEVEL_INSTANCE]


  		





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# Lock levels which are modifiable


  		





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LEVELS_MOD = [LEVEL_NODE, LEVEL_INSTANCE]


  		





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# Constant for the big ganeti lock and config lock


  		





  
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# Constant for the big ganeti lock


  		





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BGL = 'BGL'


  		





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CONFIG = 'config'


  		





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class GanetiLockManager:


  		





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      LEVEL_CLUSTER: LockSet([BGL]),


  		





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      LEVEL_NODE: LockSet(nodes),


  		





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      LEVEL_INSTANCE: LockSet(instances),


  		





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      LEVEL_CONFIG: LockSet([CONFIG]),


  		





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    }


  		





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  def _names(self, level):


  		












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