[jira] [Resolved] (PROTON-401) Ordering issue prevents credit drain from working properly

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

     [ https://issues.apache.org/jira/browse/PROTON-401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Ross resolved PROTON-401.
-----------------------------

    Resolution: Fixed

The problem has been solved by using the pn_link_get_drain() query to determine when the drain mode has changed.

> Ordering issue prevents credit drain from working properly
> ----------------------------------------------------------
>
>                 Key: PROTON-401
>                 URL: https://issues.apache.org/jira/browse/PROTON-401
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-c
>    Affects Versions: 0.5
>            Reporter: Ken Giusti
>            Assignee: Rafael H. Schloming
>             Fix For: 0.6
>
>         Attachments: drain-error.patch, drain-hack.patch
>
>
> If the sending link calls pn_link_drained() to indicate that it has send all pending data, and afterwards it receives a Flow frame with drain=true from the peer, then the drain never completes.
> The ordering is the problem: if the flow frame w/drain=true is received _BEFORE_ the sender calls pn_link_drained(), then it works.



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