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https://issues.apache.org/jira/browse/LUCENE-2791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12966503#action_12966503
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Native Policeman commented on LUCENE-2791:
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bq. If lpOverlapped is not NULL, the read operation starts at the offset that
is specified in the OVERLAPPED structure and ReadFile does not return until the
read operation is complete. The system updates the OVERLAPPED offset before
ReadFile returns.
Thanks, I missed that. Sorry - the idea is simply to make positioned reads, I
understand that.
> WindowsDirectory
> ----------------
>
> Key: LUCENE-2791
> URL: https://issues.apache.org/jira/browse/LUCENE-2791
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Store
> Reporter: Robert Muir
> Attachments: LUCENE-2791.patch, LUCENE-2791.patch,
> WindowsDirectory.dll, WindowsDirectory_amd64.dll
>
>
> We can use Windows' overlapped IO to do pread() and avoid the performance
> problems of SimpleFS/NIOFSDir.
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