From: Jan Vrany <jan.vrany@fit.cvut.cz>
To: Joel Brobecker <brobecker@adacore.com>,
Jonah Graham <jonah@kichwacoders.com>
Cc: Tom Tromey <tom@tromey.com>, "gdb@sourceware.org" <gdb@sourceware.org>
Subject: Re: MI3 and async notifications
Date: Mon, 17 Jun 2019 13:12:00 -0000 [thread overview]
Message-ID: <a4559f77fcbbf683105b292f9ac200f3f79683d7.camel@fit.cvut.cz> (raw)
In-Reply-To: <20190617125638.GA6859@adacore.com>
On Mon, 2019-06-17 at 08:56 -0400, Joel Brobecker wrote:
> > I do agree, avoid the extra configurability - but I simply don't know how
> > to work with just async notifications to sync messages. It means that CDT
> > will have to issues the -break-insert, look for the done message and
> > "search" between them to find the =breakpoint-created that matched and
> > separately process any that don't. Please see my earlier message about how
> > to handle race condition between -break-inserts over MI and breaks inserted
> > from CLI. This race condition does not happen during normal operation
> > (where a human is driving everything) but does kick in during many
> > semi-automated flows. Perhaps this isn't a big problem, but to me it seems
> > the logic to match up -break-insert to =breakpoint-created in client side
> > is complex and bug prone.
>
> The part I don't understand is why it matters to sync the two.
>
Jonah, I was about to ask the same. I understand that you need to know
which breakpoint has been inserted by given command, but this
if we respond with something like
1-break-insert main
=breakpoint-created,bkpt={number="1",type=...}
1^done,bkpt-number=1
then you just search for breakpoint with that id, no? Given that MI
guarantees that =breakpoint-created arrives before ^done reply to command.
Am I missing something?
Also note that this is not only about breakpoints but also about things like
-gdb-set and few others.
Jan
next prev parent reply other threads:[~2019-06-17 13:12 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-10 21:19 Jan Vrany
2019-06-10 23:23 ` Jonah Graham
2019-06-11 8:50 ` Jan Vrany
2019-06-11 13:37 ` Jonah Graham
2019-07-05 20:00 ` Pedro Alves
2019-07-05 21:58 ` Jonah Graham
2019-06-15 14:34 ` Tom Tromey
2019-06-17 10:53 ` Jan Vrany
2019-06-17 12:11 ` Jonah Graham
2019-06-17 12:14 ` Joel Brobecker
2019-06-17 12:26 ` Jonah Graham
2019-06-17 12:56 ` Joel Brobecker
2019-06-17 13:12 ` Jan Vrany [this message]
2019-06-17 13:23 ` Jonah Graham
2019-06-17 20:45 ` Joel Brobecker
2019-06-17 20:58 ` Jan Vrany
2019-06-17 21:50 ` Jonah Graham
2019-06-17 13:12 ` Jonah Graham
2019-06-17 19:52 ` André Pönitz
2019-06-18 3:14 ` Simon Marchi
2019-06-18 20:38 ` Jan Vrany
2019-06-19 15:29 ` Simon Marchi
2019-06-19 20:58 ` Jan Vrany
2019-06-20 15:31 ` Simon Marchi
2019-06-20 20:46 ` Jan Vrany
2019-07-05 19:35 ` Pedro Alves
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