Re: Sending EOF to process as part of comint-simple-send

[Eli Zaretskii]

> From: Andreas Schwab <schwab@linux-m68k.org>
> Cc: jporterbugs@gmail.com,  emacs-devel@gnu.org
> Date: Sun, 15 Jan 2023 11:08:29 +0100
> 
> On Jan 15 2023, Eli Zaretskii wrote:
> 
> >> From: Andreas Schwab <schwab@linux-m68k.org>
> >> Cc: Jim Porter <jporterbugs@gmail.com>,  emacs-devel@gnu.org
> >> Date: Sun, 15 Jan 2023 09:40:09 +0100
> >> 
> >> On Jan 15 2023, Eli Zaretskii wrote:
> >> 
> >> > Right.  This doesn't work for pipes, so I intend to introduce a new
> >> > function that does fsync on the descriptor via which we write to the
> >> > sub-process, and call it there instead of process-send-eof.  Does this
> >> > make sense?
> >> 
> >> You will probably get EINVAL.
> >
> > And the stuff will not be flushed?
> 
> There is nothing to flush.

This is not useful.

I'm considering the following scenario:

  emacs -Q
  M-: (setq process-connection-type nil) RET
  M-x shell RET
  od -t x1 RET
  1000 C-c C-d

Instead of "C-c C-d" (which in the above scenario closes the
connection to the sub-process) I'm thinking of adding a command to
make sure the "1000" part is sent to 'od' without a newline.  Are you
saying that this will happen automatically on Posix systems?  Or are
you saying that there's no way to do that when communicating with
sub-processes via pipes?  Or are you saying something else?