tree 17993016418ed3f00b7a155f521b06d75a52bde7
parent 26d8340600f0a38605449377aa136035b1c3bfc2
author Pavlin Radoslavov <pavlin@onlab.us> 1392939266 -0800
committer Pavlin Radoslavov <pavlin@onlab.us> 1392939266 -0800

Network Graph Refactoring: WIP: Use the Network Graph locking mechanism
 * Renamed NetworkGraph.acquireLock() and releaseLock() to
   acquireReadLock() and releaseReadLock()
 * Added new methods NetworkGraphImpl.acquireWriteLock() and
   releaseWriteLock()
 * Use the above two locks inside the TopologyManager for
   updating the in-memory Network Topology.

Change-Id: I18d6b65e6c0ad695afb80b0bd469eb96c4f657a6