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From "Robbie Gemmell (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PROTON-833) transport can emit frames with an invalid channel number after local session close
Date Thu, 05 Mar 2015 17:12:39 GMT

     [ https://issues.apache.org/jira/browse/PROTON-833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robbie Gemmell updated PROTON-833:
----------------------------------
    Summary: transport can emit frames with an invalid channel number after local session
close  (was: transport can emit detach frames with an invalid channel number after session
end)

> transport can emit frames with an invalid channel number after local session close
> ----------------------------------------------------------------------------------
>
>                 Key: PROTON-833
>                 URL: https://issues.apache.org/jira/browse/PROTON-833
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: proton-j
>    Affects Versions: 0.8
>            Reporter: Robbie Gemmell
>
> The transport can emit detach frames with an invalid channel number if a local link close(+detach?)
call is performed (in response to a remote detach) after a local session close is performed.
> When a session is locally closed by a client with open links on it, if the 'broker' sends
detach frames for any of those links then the application might then do a local close on them
in response. The client transport then emits detach 'response' frames as a result of this,
after the session end frame has been sent. A side effect of calling close on the session is
that the channel number is unmapped when the end frame is sent, and the relevant variable
set to the value -1. When the transport sends the detaches outlined above it then uses the
-1 value, which is treated as channel 65535 when sent as the unsigned channel number.



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