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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PROTON-2040) [cpp] Allow connection options to be updated for automatic reconnect.
Date Fri, 03 May 2019 15:56:00 GMT

    [ https://issues.apache.org/jira/browse/PROTON-2040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16832607#comment-16832607

ASF GitHub Bot commented on PROTON-2040:

astitcher commented on issue #181: PROTON-2040 [cpp] Allow connection options to be updated
for reconnect
URL: https://github.com/apache/qpid-proton/pull/181#issuecomment-489144925
   > It's the pn_connection_t objects that effectively "remember" the options, along with
some of the internal C++ context objects. Probably I should add a test to prove this.
   I don't think this is the case exactly. Looking at the reconnect code (which I just did
to remind myself!) I see that we actually now do keep araound a copy of the `connection_options`
for a connection in the `connection_context`. This is there because at reconnect time you
actually have to get the failover urls and parameters from the connection options as they
aren't part of the underlying proton-c model at all. 
   Also looking at the reconnect code I see that at reconnect time it is the *cached away*
version of the options that is applied to the new transport of the new connection attempt
- I don't think your changes will affect the cached away version of the connection_options
- have you tested them?
   So I'm not convinced your changes even work - unless you've got a test to prove that they
   In summary I think that my suggestion actually is feasible - provide an accessor to the
connections options - this would allow you to update them and then they would get used on
the next connection attempt.
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> [cpp] Allow connection options to be updated for automatic reconnect.
> ---------------------------------------------------------------------
>                 Key: PROTON-2040
>                 URL: https://issues.apache.org/jira/browse/PROTON-2040
>             Project: Qpid Proton
>          Issue Type: New Feature
>          Components: cpp-binding
>    Affects Versions: proton-c-0.27.1
>            Reporter: Alan Conway
>            Assignee: Alan Conway
>            Priority: Major
>             Fix For: proton-c-0.28.0
> Allow modification of connection options prior to an automatic re-connect. Requested
on mailing list:
>  [https://lists.apache.org/thread.html/1fcd524de1e0d896a6f025470e0d774e051b8449dba0b9ddb3d0439e@%3Cusers.qpid.apache.org%3E]

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