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From "Leo Li (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-3037) [classlib][nio]DatagramChannelImpl lacks support for direct byte buffer in wrtieImpl
Date Tue, 23 Jan 2007 07:02:49 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-3037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Leo Li updated HARMONY-3037:
----------------------------

    Patch Info: [Patch Available]

Hi, all:
    Will somebody try this patch?

Thanks,
Leo.

> [classlib][nio]DatagramChannelImpl lacks support for direct byte buffer in wrtieImpl
> ------------------------------------------------------------------------------------
>
>                 Key: HARMONY-3037
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3037
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>            Reporter: Leo Li
>         Attachments: patch-3037.zip
>
>
> As spec says, "Given a direct byte buffer, the Java virtual machine will make a best
effort to perform native I/O operations directly upon it. That is, it will attempt to avoid
copying the buffer's content to (or from) an intermediate buffer before (or after) each invocation
of one of the underlying operating system's native I/O operation". However, in Harmony nio,
DatagramChannelImpl does not differentiate whether the byte buffer is direct or not.

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