[jira] [Created] (CURATOR-598) InterProcessSemaphoreV2::getData to check against data changes on the semaphore

["Francesco Nigro (Jira)" <ji...@apache.org>]

Francesco Nigro created CURATOR-598:
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             Summary: InterProcessSemaphoreV2::getData to check against data changes on the semaphore
                 Key: CURATOR-598
                 URL: https://issues.apache.org/jira/browse/CURATOR-598
             Project: Apache Curator
          Issue Type: New Feature
          Components: Recipes
    Affects Versions: 5.1.0
            Reporter: Francesco Nigro


InterProcessSemaphoreV2 allows holders to set data on the acquired lease: exposing an Optional<byte[]> getData would allow an observer to check against mutex state change despite not being the lock owner (assuming owner has used setData prior a mutex acquisition).
This can be used to enforce the order of mutex acquisition or just check owner's identity and/or presence (assuming owner setData prior a mutex acquisition).



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