public inbox for libc-alpha@sourceware.org
 help / color / mirror / Atom feed
From: Paul Eggert <eggert@cs.ucla.edu>
To: Florian Weimer <fweimer@redhat.com>,
	Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Cc: libc-alpha@sourceware.org, Bruno Haible <bruno@clisp.org>
Subject: Re: [PATCH] time: Use CLOCK_REALTIME for time (BZ #30200)
Date: Tue, 7 Mar 2023 21:51:00 -0800	[thread overview]
Message-ID: <e0b0f815-d344-38cb-99e0-1278b7068197@cs.ucla.edu> (raw)
In-Reply-To: <877cvspxxa.fsf@oldenburg.str.redhat.com>

On 2023-03-07 04:07, Florian Weimer via Libc-alpha wrote:
> Probably RESOLVED/MOVED because we get whatever time the kernel
> provides.  It seems a deliberate kernel decision to me.

For my own information, is 'time' the only standard function that uses a 
clock other than CLOCK_REALTIME and so can be out-of-sync with 
timespec_get? What about gettimeofday, futimens with UTIME_NOW, or 
timestamps set by modifying files?

My idea is to go through the apps I help maintain, and make sure that 
they never call 'time' anywhere that it's important that a timestamp be 
in sync with with the rest of the system, since Glibc 'time' is out of 
sync in that way.

  reply	other threads:[~2023-03-08  5:51 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-06 16:03 Adhemerval Zanella
2023-03-07 11:11 ` Florian Weimer
2023-03-07 11:45   ` Adhemerval Zanella Netto
2023-03-07 11:51     ` Florian Weimer
2023-03-07 11:57       ` Adhemerval Zanella Netto
2023-03-07 12:07         ` Florian Weimer
2023-03-08  5:51           ` Paul Eggert [this message]
2023-03-08  8:59             ` Florian Weimer
2023-03-08 23:08               ` Paul Eggert
2023-03-08 16:23             ` Bruno Haible
2023-03-08 16:57               ` Adhemerval Zanella Netto
2023-03-08 17:09                 ` Florian Weimer
2023-03-08 17:46                   ` Adhemerval Zanella Netto
2023-03-08 17:44                 ` Bruno Haible
2023-03-08 17:50                   ` Adhemerval Zanella Netto

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=e0b0f815-d344-38cb-99e0-1278b7068197@cs.ucla.edu \
    --to=eggert@cs.ucla.edu \
    --cc=adhemerval.zanella@linaro.org \
    --cc=bruno@clisp.org \
    --cc=fweimer@redhat.com \
    --cc=libc-alpha@sourceware.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).