Re: [PATCH v2 0/6] Implement a batched fsync option for core.fsyncObjectFiles

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On Tue, Sep 07 2021, Neeraj Singh wrote:

> On Tue, Sep 7, 2021 at 12:54 PM Randall S. Becker
> <rsbecker@xxxxxxxxxxxxx> wrote:
>>
>> On September 7, 2021 3:44 PM, Neeraj Singh wrote:
>> >On Fri, Aug 27, 2021 at 4:49 PM Neeraj K. Singh via GitGitGadget <gitgitgadget@xxxxxxxxx> wrote:
>> >>
>> >> Thanks to everyone for review so far! I've responded to the previous
>> >> feedback and changed the patch series a bit.
>> >>
>> >> Changes since v1:
>> >>
>> >>  * Switch from futimes(2) to futimens(2), which is in POSIX.1-2008. Contrary
>> >>    to dscho's suggestion, I'm still implementing the Windows version in the
>> >>    same patch and I'm not doing autoconf detection since this is a POSIX
>> >>    function.
>>
>> While POSIX.1-2008, this function is not available on every single
>> POSIX-compliant platform. Please make sure that the code will not
>> cause a breakage on some platforms - the ones I maintain, in
>> particular. Neither futimes nor futimens is available on either
>> NonStop ia64 or x86. The platform only has utime, so this needs to
>> be wrapped with an option in config.mak.uname.
>>
>> Thanks,
>> Randall
>
> Ugh. Fair enough.  How do other contributors feel about me moving back
> to utime, but instead just doing the utime over in
> builtins/pack-objects.c?  The idea would be to eliminate the mtime
> logic entirely from write_loose_object and just do it at the top-level
> in loosen_unused_packed_objects.

Aside from where it lives, can't we just have a wrapper that takes both
the filename & fd, and then on some platforms will need to dispatch to a
slower filename-only version, but can hopefully use the new fd-accepting
function?



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