Re: [PATCH] remote_rcmd

[Daniel Jacobowitz <drow@mvista.com>]

On Sun, Jul 14, 2002 at 01:48:38PM -0400, Andrew Cagney wrote:
> >
> >Actually, the current docs suggest:
> >
> >-> qRcmd command
> ><- O <HEX-OUTPUT>
> ><- O <HEX-OUTPUT>
> ><- <HEX-OUTPUT>
> ><- OK
> 
> Where?

                              COMMAND (hex encoded) is passed to the
                              local interpreter for execution.  Invalid
                              commands should be reported using the
                              output string.  Before the final result
                              packet, the target may also respond with
                              number of intermediate `O'OUTPUT console
                              output packets.

...

               reply OUTPUT   A command response with the hex encoded
                              output string OUTPUT.

> >which confuses me.  What's supposed to differentiate the O <HEX-OUTPUT>
> >packets from the final <HEX-OUTPUT> packet (what difference in purpose,
> >I mean)?
> 
> Valid replies to ``qRcmd'' are:
> 
> 	``OK''
> 	``''
> 	``<HEX-OUTPUT>''
> 	``Enn''
> 
> The ``O'' packet is something separate.

I think I wasn't clear in my question.  qRcmd can send some O packets,
which are supposed to provide some ambiguous form of "output" from the
"console", and then one <HEX-OUTPUT> packet.  What is supposed to go in
which?  It doesn't make sense to me to limit this to one <HEX-OUTPUT>
packet if it is arbitrary output; it may simply be too large.  On the
other hand I'm not sure I see why both O<HEX> and <HEX> are allowed.


-- 
Daniel Jacobowitz                           Carnegie Mellon University
MontaVista Software                         Debian GNU/Linux Developer