[jira] Resolved: (HARMONY-3037) [classlib][nio]DatagramChannelImpl and SocketChannelImpl lack support for direct byte buffer

["Paulex Yang (JIRA)" <ji...@apache.org>]

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

Paulex Yang resolved HARMONY-3037.
----------------------------------

    Resolution: Fixed

Leo, patch applied at revision r501403 with many modifications, including bug fixing, compiler warning fixing, tidy up, etc. Thanks a lot for this enhancement, please verify the issue is fully resolved as you expected.

> [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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