[jira] Updated: (ZOOKEEPER-78) added a high level protocol/feature - for easy Leader Election or exclusive Write Lock creation

["Mahadev konar (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-78?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mahadev konar updated ZOOKEEPER-78:
-----------------------------------

    Attachment: ZOOKEEPER-78.patch

this patch has the c library in it as well. 
Now I think of it, I probably should have done it in a seperate jira with subtasks as java and c libraries.

- added the c library with auto * files to create teh library
- added cpp unit testing for the c library
- similar to java interface, the c interface also allows a callback method to be called in case of lock being avquired and released.
- i will be cleaning up the patch (with some more docs and rmeocing unneccasry printf's and unused code).

comments are welcome... 


> added a high level protocol/feature - for easy Leader Election or exclusive Write Lock creation
> -----------------------------------------------------------------------------------------------
>
>                 Key: ZOOKEEPER-78
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-78
>             Project: Zookeeper
>          Issue Type: New Feature
>          Components: java client
>    Affects Versions: 3.0.0
>            Reporter: james strachan
>            Assignee: james strachan
>             Fix For: 3.2.0
>
>         Attachments: patch_with_including_Benjamin's_fix.patch, using_zookeeper_facade.patch, ZOOKEEPER-78.patch, ZOOKEEPER-78.patch, ZOOKEEPER-78.patch, ZOOKEEPER-78.patch
>
>
> Here's a patch which adds a little WriteLock helper class for performing leader elections or creating exclusive locks in some directory znode. Note its an early cut; am sure we can improve it over time. The aim is to avoid folks having to use the low level ZK stuff but provide a simpler high level abstraction.

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