[jira] [Created] (DISPATCH-1299) Provide API access to the already existing safe-reference capability in alloc-pool

["Ted Ross (JIRA)" <ji...@apache.org>]

Ted Ross created DISPATCH-1299:
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             Summary: 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
             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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