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Date: Wed, 07 Jan 2015 18:34:00 -0000
From: Eli Zaretskii <eliz@gnu.org>
Subject: Re: [PATCH] Speed up "gdb -tui" output
In-reply-to: <CADPb22Q88OKXp1UcPPEC4LrEY9qXhY8qMQyc4i8BRa6fS3As3Q@mail.gmail.com>
To: Doug Evans <dje@google.com>
Cc: palves@redhat.com, gdb-patches@sourceware.org
Reply-to: Eli Zaretskii <eliz@gnu.org>
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References: <83zj9v7urq.fsf@gnu.org> <CADPb22Q7oD3K-dYkngEPDBbV++mLCKifTEmvJczQ=0h2FX0yXA@mail.gmail.com> <54AD4E22.1010106@redhat.com> <CADPb22RjhBGkbSjuFgGDy4qhRiXAcyaw_-DHdz4pY_-t42FJFQ@mail.gmail.com> <CADPb22Q88OKXp1UcPPEC4LrEY9qXhY8qMQyc4i8BRa6fS3As3Q@mail.gmail.com>
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> Date: Wed, 7 Jan 2015 10:12:36 -0800
> From: Doug Evans <dje@google.com>
> Cc: Eli Zaretskii <eliz@gnu.org>, gdb-patches <gdb-patches@sourceware.org>
> 
> On Wed, Jan 7, 2015 at 10:00 AM, Doug Evans <dje@google.com> wrote:
> > Do we need to do gdb_flush (gdb_stdout) if c == '\n'?
> >
> > Normally in curses line buffering doesn't make any sense.
> > One paints the window and then does a refresh.
> > We want to add scrolling of the command line window on
> > top of that, but if the intent is for that to be handled by
> > gdb's standard set height mechanism (which could use
> > some TLC w.r.t. TUI), then the screen will be refreshed
> > at the "Type <return> to continue, ..." prompt.
> > I don't off hand know if TUI tries to give the user the
> > impression of scrolling if the user sets the height
> > to be larger than the physical command line window.
> > My impression is it doesn't.
> > And therefore, I think we don't need to do any call to
> > gdb_flush here.  Could be missing something though.
> 
> Well, there is unfiltered output which doesn't
> go through pagination.
> Fun fun fun.

Yes, lots of it.