Re: [PATCH] terminal split

[Yoshinori K. Okuji]

On Tuesday 04 November 2008 18:14:17 Robert Millan wrote:
> On Tue, Nov 04, 2008 at 04:52:20PM +0100, Yoshinori K. Okuji wrote:
> > No ChangeLog?
>
> Here.  I ommitted it because I wanted to see if it would need big
> adjustments first.

OK. The patch looks perfect for me.

> > BTW, I would like to obtain the capability of handling pipes, so that we
> > can, say, "help | more". I guess you have the same idea in your mind.
>
> Actually, I didn't think about this possibility.  My goal was to simplify
> things on the backend side, so many of the quirks we have can be removed
> (some examples in my previous mail), and we can integrate USB keyboard
> support cleanly.
>
> > This should
> > be trivial, once the input and output are separate, right?
>
> Well, I suppose one could write a "pipe" output terminal that stores output
> in a buffer, and then a "pipe" input terminal that reads from it.  My code
> probably makes pipes easier, but I don't know how much is left (I assume
> you don't want real pipes since that implies multi-threading).

Surely, I don't want multi-processing or multi-threading in GRUB. This is 
overkill. A pipe should be implemented in the same way as in DOS.

Regards,
Okuji