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Posted to dev@mina.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/05/13 07:49:00 UTC

[jira] [Work logged] (SSHD-1261) Sometimes async write listener is not called

     [ https://issues.apache.org/jira/browse/SSHD-1261?focusedWorklogId=770059&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-770059 ]

ASF GitHub Bot logged work on SSHD-1261:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 13/May/22 07:48
            Start Date: 13/May/22 07:48
    Worklog Time Spent: 10m 
      Work Description: tomaswolf commented on PR #218:
URL: https://github.com/apache/mina-sshd/pull/218#issuecomment-1125757166

   This is obsolete; should be fixed with the changes made in commit 1ab50fe2.




Issue Time Tracking
-------------------

    Worklog Id:     (was: 770059)
    Time Spent: 0.5h  (was: 20m)

> Sometimes async write listener is not called
> --------------------------------------------
>
>                 Key: SSHD-1261
>                 URL: https://issues.apache.org/jira/browse/SSHD-1261
>             Project: MINA SSHD
>          Issue Type: Bug
>    Affects Versions: 2.8.0
>            Reporter: Evgeny Pasynkov
>            Assignee: Lyor Goldstein
>            Priority: Major
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Hello,
> I have discovered the case when the async write listener is not called.
> Imagine the case: The `ChannelAsyncOutputStream::doWriteIfPossible` method discover that window size is too small (lines 160-167). It setup new future and exit the doWriteIfPossible method, relying on `onWindowExpanded` will be called shortly. But if the channel is disconnected, the method will never be invoked, thus future won't be completed.
>  I suggest adding the following override to ChannelAsyncOutputStream class:
> {code:java}
>     @Override
>     protected void doCloseImmediately() {
>         abortCurrentWrite();
>         super.doCloseImmediately();
>     }
>     protected synchronized void abortCurrentWrite() {
>         IoWriteFutureImpl future = pendingWrite.get();
>         if (future != null) {
>             future.setValue(new ClosedChannelException());
>         }        
>     }
> {code}



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