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https://issues.apache.org/jira/browse/ZOOKEEPER-319?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Hunt reassigned ZOOKEEPER-319:
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Assignee: Chris Darroch
> add locking around auth info in zhandle_t
> -----------------------------------------
>
> Key: ZOOKEEPER-319
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-319
> Project: Zookeeper
> Issue Type: Bug
> Components: c client
> Affects Versions: 3.0.0, 3.0.1, 3.1.0
> Reporter: Chris Darroch
> Assignee: Chris Darroch
> Fix For: 3.1.1, 3.2.0
>
> Attachments: ZOOKEEPER-319.patch, ZOOKEEPER-319.patch,
> ZOOKEEPER-319.patch
>
>
> Looking over the zookeeper.c code it appears to me that the zoo_add_auth()
> function may be called at any time by the user in their "main" thread. This
> function alters the elements of the auth_info structure in the zhandle_t
> structure.
> Meanwhile, the IO thread may read those elements at any time in such
> functions as send_auth_info() and auth_completion_func(). It seems
> important, then, to add a lock which prevents data being read by the IO
> thread while only partially changed by the user's thread. The attached patch
> add such a lock.
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