Re: Retrying close() after error on Linux !?

[Paul Eggert]

On 03/14/2018 10:52 AM, Bruno Haible wrote:
> This is an interesting, creative idea. However, because few people use this
> 'dup2 as a kind of atomic close' workaround, I fear that it might lead us
> into the proximity of OS bugs. Hardly anyone has tested how dup2 works
> in the presence of signals and ttys, in the past.

For what it's worth, in Emacs I wrote the attached code (in 
src/sysdep.c) and it seems to have worked well enough for Emacs so far. 
Perhaps something like this should be Gnulibified, and the rest of 
Gnulib should call posix_close.

posix_close.c
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