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Posted to dev@qpid.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2019/03/22 13:49:00 UTC
[jira] [Commented] (DISPATCH-1299) Provide API access to the
already existing safe-reference capability in alloc-pool
[ https://issues.apache.org/jira/browse/DISPATCH-1299?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16799034#comment-16799034 ]
ASF subversion and git services commented on DISPATCH-1299:
-----------------------------------------------------------
Commit 45332d36a1091d872cf857178432e04631af8456 in qpid-dispatch's branch refs/heads/master from Ted Ross
[ https://gitbox.apache.org/repos/asf?p=qpid-dispatch.git;h=45332d3 ]
DISPATCH-1299 - Update safe-pointer use in the lookup client to use the newer API.
(cherry picked from commit 1ee6aa76e2bdcbdcd4fc9d9f9fe7a7f0bd7a97a5)
> Provide API access to the already existing safe-reference capability in alloc-pool
> ----------------------------------------------------------------------------------
>
> Key: DISPATCH-1299
> URL: https://issues.apache.org/jira/browse/DISPATCH-1299
> Project: Qpid Dispatch
> Issue Type: Improvement
> Components: Container
> Reporter: Ted Ross
> Assignee: Ted Ross
> Priority: Major
> Fix For: 1.6.0
>
>
> This improvement adds the following two functions to the list of functions generated per pooled type:
> {{typedef ... <typename>_sp;}}
> {{void set_safe_ptr(<typename> *p, <typename>_sp *sp);}}
> {{<typename> *safe_deref_<typename>(<typename>_sp sp);}}
> A user of this feature can declare or allocate a safe-pointer, set the safe-pointer using a normal object pointer, and dereference the safe-pointer later to yield the original normal pointer. If, in the interim time, the object was freed, the safe-dereference will yield a NULL pointer rather than a stale (possibly re-used) pointer.
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