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Date: Fri, 22 Feb 2008 07:35:21 -0800 (PST)
From: "Oleg Kalnichevski (JIRA)" <jira@apache.org>
To: dev@hc.apache.org
Subject: [jira] Commented: (HTTPCORE-92) NIO ChunkEncoder does not flush the
 session output buffer
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    [ https://issues.apache.org/jira/browse/HTTPCORE-92?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12571443#action_12571443 ] 

Oleg Kalnichevski commented on HTTPCORE-92:
-------------------------------------------

Andrea,

Probably that was not quite clear from the issue description. The main goal is to prevent the session buffer from growing needlessly. There is point in trying to copy every single byte from one buffer into another. NIO channels were primarily designed to enable the I/O layer to transfer only as much data as possible without blocking or allocating additional memory. So, instead of expanding the session buffer to accommodate the complete content of the source buffer, the ChunkEncoder should flush session buffer and copy only as much data from the source buffer the session buffer is capable of holding without having to expand its capacity. That is it.

Please submit changes in the udiff (unified diff) format. This will make my life a little easier. 

Oleg

> NIO ChunkEncoder does not flush the session output buffer
> ---------------------------------------------------------
>
>                 Key: HTTPCORE-92
>                 URL: https://issues.apache.org/jira/browse/HTTPCORE-92
>             Project: HttpComponents HttpCore
>          Issue Type: Improvement
>          Components: HttpCore NIO
>            Reporter: Oleg Kalnichevski
>             Fix For: 4.0-beta2
>
>         Attachments: write_reworked.txt
>
>
> Present implementation of the NIO ChunkEncoder is over-simplistic. It always expands the session output buffer to store more content instead of trying to free up space by flushing the buffered content.

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