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Posted to commits@harmony.apache.org by "Leo Li (JIRA)" <ji...@apache.org> on 2007/01/29 05:07:49 UTC
[jira] Updated: (HARMONY-3037) [classlib][nio]DatagramChannelImpl
and SocketChannelImpl lack support for direct byte buffer
[ https://issues.apache.org/jira/browse/HARMONY-3037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Leo Li updated HARMONY-3037:
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Description: 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. (was: 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.)
Summary: [classlib][nio]DatagramChannelImpl and SocketChannelImpl lack support for direct byte buffer (was: [classlib][nio]DatagramChannelImpl and SocketChannelImpl lacks support for direct byte buffer )
> [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
> 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 and SocketChannelImpl do not differentiate whether the byte buffer is direct or not.
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