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https://issues.apache.org/jira/browse/MESOS-8673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16425057#comment-16425057
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Andrew Schwartzmeyer commented on MESOS-8673:
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We should probably add another issue for adding overlapped-ness to it.
> Fix os::open to use CreateFile in overlapped mode
> -------------------------------------------------
>
> Key: MESOS-8673
> URL: https://issues.apache.org/jira/browse/MESOS-8673
> Project: Mesos
> Issue Type: Task
> Reporter: Andrew Schwartzmeyer
> Assignee: Andrew Schwartzmeyer
> Priority: Major
> Labels: stout, windows
>
> Because we need to keep the existing API of {{os::open}} (which is POSIX-y
> and currently uses the CRT {{_open}} on Windows), we'll need to map all the
> possible values for {{int oflag, mode_t mode}} to equivalent semantics in
> {{CreateFile}}.
> Our intent is to open all files in overlapped mode by default; which can be
> read synchronously when needed (but the other way around is not possible).
> However, it may be that we'll need to use {{ReOpenFile}} to when sending file
> handles to child processes.
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