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https://issues.apache.org/jira/browse/PROTON-2843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17879562#comment-17879562
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ASF GitHub Bot commented on PROTON-2843:
----------------------------------------
PatrickTaibel opened a new pull request, #432:
URL: https://github.com/apache/qpid-proton/pull/432
Deliveries can not be settled after the receiver has been freed. The current
Go implementation leads to a segmentation fault when the receiver is closed
before a delivery is acknowledged.
Therefore, this adds a check to ensure that the receiver was not closed
(which ensures that `Free` has not been called on the link yet). Additionally,
this changes to use `InjectWait` in order to be able to use the newly returned
error.
> [Go] Acknowledging a message on a closed receiver results in a segmentation
> fault
> ---------------------------------------------------------------------------------
>
> Key: PROTON-2843
> URL: https://issues.apache.org/jira/browse/PROTON-2843
> Project: Qpid Proton
> Issue Type: Bug
> Components: go-binding
> Reporter: Patrick Taibel
> Assignee: Alan Conway
> Priority: Major
>
> Using the {{electron}} package when acknowledging messages ({{{}Accept(){}}},
> {{Reject()}} or {{Release()}} on a {{{}ReceivedMessage{}}}) a segmentation
> fault occurs if the {{Receiver}} was already closed.
> This happens because the underlying link of the receiver gets freed which,
> according to the docs of {{pn_link_free,}} also frees any unsettled
> deliveries.
> As the actual acknowledgement needs to run in the engine goroutine the check
> for an active receiver has to happen inside the {{electron}} package.
> I'd suggest adding a check if the receiver is still alive in the injected
> function in {{{}func (rm *ReceivedMessage) acknowledge(status uint64)
> error{}}}.
> I plan to do a PR to fix this but it will take a couple of weeks until I get
> there as this is a low priority fix on our end.
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