[PATCH] Re: Closing stdin of asynchronous sub processes

[Eric M. <ter...@wo...>]

So I had a look at the librep source and came up with a patch to
src/unix_processes.c that exposes a "close-process" function. It
just calls the close_process_files C function that was already
present.

My test program below works perfectly once I added a call to
close-process.

Hopefully this can be committed?

-Eric Mangold

> Hello,
>
> I need set the primary X selection from rep (under sawfish) and it seems
> like using the xclip(1) program is the easiest way.
>
> To test outside of sawfish, I run this with rep:
>
> (setq proc (make-process))
> (start-process proc "xclip" "-i") ;;this reads the text to set from stdin
> (write proc "set selection to this")
>
> OK, that works fine if you just run it with no event-loop. But, if you add
> the event loop...
>
> (setq interrupt-mode 'exit) ;; make it so we can C-c out
> (setq proc (make-process))
> (start-process proc "xclip" "-i") ;;this reads the text to set from stdin
> (write proc "set selection to this")
> (recursive-edit)
>
> Then the xclip program is indeed launched but it never terminates because
> it's stdin is still waiting for EOF. Apparently in the non-event-loop
> version, the terminating of the rep binary forces the stdin/out/err of
> xclip to be closed, and so xclip goes and does its thing.
>
> So how does one close the stdin (if that is indeed my problem)?
>
> Thanks,
> Eric Mangold
>
>