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From "Paulex Yang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-3037) [classlib][nio]DatagramChannelImpl and SocketChannelImpl lack support for direct byte buffer
Date Thu, 01 Feb 2007 09:27:06 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-3037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12469378

Paulex Yang commented on HARMONY-3037:

Leo, the second patch is applied at revision r502166, please verify, thanks.

> [classlib][nio]DatagramChannelImpl  and SocketChannelImpl lack support for direct byte
> ----------------------------------------------------------------------------------------------
>                 Key: HARMONY-3037
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3037
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>            Reporter: Leo Li
>         Assigned To: Paulex Yang
>         Attachments: patch-3037.zip, patch-3037.zip, patch-3037_2.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 and SocketChannelImpl do not differentiate whether the byte buffer is
direct or not.

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