Re: X error and vim dies

Manfred Lotz wrote:

> On Tue, 5 May 2020 23:31:02 -0700 (PDT)
> John Little <john.b.little@gmail.com> wrote:
>
> > If this problem has consequences (vim dying in the middle of your
> > work can be bad), if you build your own vim a workaround is to modify
> > os_unix.c in the x_error_handler function, to replace the
> > preserve_exit() call with
> >
> > g_print("%s", IObuff);
> >
> > or just comment out the preserve_exit() call. I have used this
> > workaround for a BadWindow error for about a decade, with no ill
> > effect.
> >
>
> Sounds like a good idea. But why isn't this changed this way in the
> official vim sources?

This is "not supposed to happen". But there was already a comment that
it might be possible to silently continue.

Let's make it a bit safer by preserving swap files, in case X does
decide to exit or we crash.

In a terminal we can show the message. The comment mentions that in the
GUI, using the X server may fail in the error handler. So we'll not
show the message.

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