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From "Leo Li (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-3037) [classlib][nio]DatagramChannelImpl and SocketChannelImpl lack support for direct byte buffer
Date Tue, 30 Jan 2007 03:13:08 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-3037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12468475
] 

Leo Li commented on HARMONY-3037:
---------------------------------

Hi, Paulex:
     It is a problem. I have fixed it in the new patch.

Good luck!

> [classlib][nio]DatagramChannelImpl  and SocketChannelImpl lack support for direct byte
buffer 
> ----------------------------------------------------------------------------------------------
>
>                 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
>
>
> 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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