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https://issues.apache.org/jira/browse/PROTON-2027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16813813#comment-16813813
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ASF subversion and git services commented on PROTON-2027:
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Commit 5b6ed8e166c47922ee94502ac30a7d5c235a4406 in qpid-proton's branch
refs/heads/master from Clifford Jansen
[ https://gitbox.apache.org/repos/asf?p=qpid-proton.git;h=5b6ed8e ]
PROTON-2027: use make_work instead of lambda for wider platform coverage
> Proactor connection wake after memory freed when using
> pn_proactor_disconnect().
> --------------------------------------------------------------------------------
>
> Key: PROTON-2027
> URL: https://issues.apache.org/jira/browse/PROTON-2027
> Project: Qpid Proton
> Issue Type: Bug
> Components: proton-c
> Affects Versions: proton-c-0.27.0
> Reporter: Cliff Jansen
> Assignee: Cliff Jansen
> Priority: Major
> Fix For: proton-c-0.28.0
>
>
> The normal cleanup procedure for epoll and win_iocp proactors waits for all
> async activity to complete before freeing memory.
> pn_proactor_disconnect can't actually force a close so it launches a separate
> async activity piggy-backed on the internal wake mechanism of any connections
> to be closed.
> If the disconnect is happening at the same time as a separate thread doing a
> normal close, a new wake can result after concluding there are none left.
> The solution is to mark the connection as "already awake" before entering the
> cleanup code so new wakes are no-ops. The libuv proactor doesn't need this
> as the disconnect function is managed within libuv and never competes with
> the normal close operation.
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