bug#22096: 25.0.50; reading from fifo breaks display

[Mark Oteiza]

On 05/12/15 at 09:38pm, Eli Zaretskii wrote:
> > From: Mark Oteiza <mvoteiza@udel.edu>
> > Date: Sat, 05 Dec 2015 13:29:14 -0500
> > 
> > Simpler recipe:
> > 
> > 1. mkfifo foo
> > 2. echo "bar" > foo
> > 
> > In emacs -Q:
> > 
> > 3. Evaluate (insert-file-contents-literally "foo" t)
> > 
> > The buffer display is now broken.
> 
> Thanks.  My Emacs is configured with --enable-checking, so it aborted
> due to assertion violation.  The patch below fixes that for me; please
> see if it fixes the display problem for you.
>
> diff --git a/src/fileio.c b/src/fileio.c
> index 6cda1e3..8e44eb0 100644
> --- a/src/fileio.c
> +++ b/src/fileio.c
> @@ -4265,7 +4265,7 @@ by calling `format-decode', which see.  */)
>         && NILP (replace))
>       /* Visiting a file with these coding system makes the buffer
>          unibyte.  */
> -     bset_enable_multibyte_characters (current_buffer, Qnil);
> +     Fset_buffer_multibyte (Qnil);
>      }
> 
>    coding.dst_multibyte = ! NILP (BVAR (current_buffer, 
> enable_multibyte_charac\
> ters));
> 

The patch does indeed fix the display problem. Thank you.