Re: `message' not outputting the newline "atomically"

[Andreas Schwab]

On Jun 19 2019, Lars Ingebrigtsen <address@hidden> wrote:

> Eli Zaretskii <address@hidden> writes:
>
>> I agree with Andreas: we aren't.  It's just sheer luck if this happens
>> (probably because the time window for mixing output is small).
>
> No, we are on all Unix-like OS-es I'm familiar with, and certainly on
> GNU/Linux: If you output data that's less than PIPE_BUF in length, a
> write(2) call will never interleave the data.

Noninteractively, message goes to stderr, which is unbuffered by
default.

Andreas.

-- 
Andreas Schwab, SUSE Labs, address@hidden
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