Re: Loaded footgun open_datasync on Windows

From: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
To: Michael Paquier <michael(at)paquier(dot)xyz>
Cc: Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Loaded footgun open_datasync on Windows
Date: 2018-06-06 09:09:35
Message-ID: CAA4eK1KZ_N5ef4wOgB_HCtB-7=6udHpjte2aZt3iqT9-eSh9oQ@mail.gmail.com
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On Wed, Jun 6, 2018 at 10:18 AM, Michael Paquier <michael(at)paquier(dot)xyz>
wrote:

> On Wed, Jun 06, 2018 at 09:58:34AM +0530, Amit Kapila wrote:
>
> >> It could be
> >> risky for existing callers of open() for tool maintainers, or on the
> >> contrary people could welcome a wrapper of open() which is
> >> concurrent-safe in their own tools.
> >
> > I am not sure if we can safely assume that because using these functions
> > would allow users to concurrently delete the files, but may be it is okay
> > for all the FRONTEND modules. One another alternative could be that we
> > define open as pgwin32_open (for WIN32) wherever we need it.
>
> Which is what basically happens on any *nix platform, are you foreseeing
> anything bad here?

>
Nothing apparent, but I think we should try to find out why at the first
place this has been made backend specific.

--
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com

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