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Re: `message' not outputting the newline "atomically"
From: |
Eli Zaretskii |
Subject: |
Re: `message' not outputting the newline "atomically" |
Date: |
Thu, 27 Jun 2019 16:31:38 +0300 |
> From: Lars Ingebrigtsen <address@hidden>
> Cc: address@hidden, address@hidden, address@hidden
> Date: Thu, 27 Jun 2019 13:03:17 +0200
>
> Eli Zaretskii <address@hidden> writes:
>
> > Sorry, I've probably misunderstood what was being discussed. I thought
> > you were talking about the conversion itself. The target string is of
> > course created via xmalloc. B ut that could hardly infloop.
>
> So, that function is a function that will commonly already call xmalloc,
> so adding another one doesn't substantially change the guarantees or
> behaviour of that function, which was my point (because that's the
> `message' path).
Each additional call increases the risk you will run out of memory or
hit some calamity. It isn't an all or nothing situation.
> The practical problems with interleaving (that is, the only ones I see
> with any regularity) are the ones that stems from using `message' in a
> batch Emacs, and the other uses of stderr aren't problems in practice.
> (Because they're only used for errors that "shouldn't happen".)
>
> But I'm all for fixing those things if that can be done in a way that
> doesn't break anything, and then (of course) the `message' path could
> also use that machinery.
I'm okay with making 'message' write in one go to stderr, but I don't
want to pay the price of having stderr buffered globally. Several
solutions for this single issue were already proposed, but we keep
rejecting them and returning to line-buffering time and again. I
think if we want to solve the original problem, that of 'message' in
batch sessions, we should stop looking for a 110% perfect solution,
and certainly not try to solve additional issues while we are at that.
- Re: `message' not outputting the newline "atomically", (continued)
- Re: `message' not outputting the newline "atomically", Paul Eggert, 2019/06/26
- Re: `message' not outputting the newline "atomically", Eli Zaretskii, 2019/06/26
- Re: `message' not outputting the newline "atomically", Daniele Nicolodi, 2019/06/26
- Re: `message' not outputting the newline "atomically", Eli Zaretskii, 2019/06/26
- Re: `message' not outputting the newline "atomically", Paul Eggert, 2019/06/27
- Re: `message' not outputting the newline "atomically", Paul Eggert, 2019/06/26
- Re: `message' not outputting the newline "atomically", Eli Zaretskii, 2019/06/25
- Re: `message' not outputting the newline "atomically", Lars Ingebrigtsen, 2019/06/26
- Re: `message' not outputting the newline "atomically", Eli Zaretskii, 2019/06/26
- Re: `message' not outputting the newline "atomically", Lars Ingebrigtsen, 2019/06/27
- Re: `message' not outputting the newline "atomically",
Eli Zaretskii <=
- Re: `message' not outputting the newline "atomically", Lars Ingebrigtsen, 2019/06/28
- Re: `message' not outputting the newline "atomically", Eli Zaretskii, 2019/06/25