tree 33e5d401acd02788d28ee7641b089b520d1a4d02
parent 5e6af8d34ad2a6e47c6a634862e7044fd3249d93
author Pavlin Radoslavov <pavlin@onlab.us> 1364865166 +0000
committer Pavlin Radoslavov <pavlin@onlab.us> 1364865166 +0000

Add method getNextFlowEntryId() which is used internally to generate
the FlowEntryIDs. Currently, for simplicity the upper 32 bits are
randomly generated, while the lower 32 bits are sequential.
If all lower 32 bits are used, the upper 32 bits are regenerated.

In the future, we should use a better mechanism (e.g., use
Zookeeper to generate the upper 32 bits in semi-sequential fashion,
and to guarantee they are unique).