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Re: Use pg_pwritev_with_retry() instead of write() in dir_open_for_write() to avoid partial writes? - Mailing list pgsql-hackers

From Kyotaro Horiguchi
Subject Re: Use pg_pwritev_with_retry() instead of write() in dir_open_for_write() to avoid partial writes?
Date
Msg-id 20230215.102837.668564888299847545.horikyota.ntt@gmail.com
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In response to Re: Use pg_pwritev_with_retry() instead of write() in dir_open_for_write() to avoid partial writes?  (Andres Freund <andres@anarazel.de>)
Responses Re: Use pg_pwritev_with_retry() instead of write() in dir_open_for_write() to avoid partial writes?
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At Tue, 14 Feb 2023 16:55:25 -0800, Andres Freund <andres@anarazel.de> wrote in 
> Hi,
> 
> On 2023-02-14 18:00:00 +0530, Bharath Rupireddy wrote:
> > Done, PSA v2 patch.
> 
> This feels way too complicated to me.  How about something more like the
> attached?

I like this one, but the parameters offset and size are in a different
order from pwrite(fd, buf, count, offset).  I perfer the arrangement
suggested by Bharath. And isn't it better to use Min(remaining_size,
BLCKSZ) instead of a bare if statement?

regards.

-- 
Kyotaro Horiguchi
NTT Open Source Software Center

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