[RFC] Queries and frontends

[Hui Zhu]

On Tue, Jul 21, 2009 at 14:13, Nick Roberts<nickrob@snap.net.nz> wrote:
>  > First, let's mention the "set confirm off" command.  The documentation
>  > at section 20.7 reads:
>  > "If you are willing to unflinchingly face the consequences of your own
>  > commands, you can disable this "feature":"
>  >
>  > So, from the doc and from what seems (to me :-)) like the proper
>  > behavior, when we "set confirm off", all commands that use a query
>  > should simply be performed without asking the user.
>  >
>  > The current implementation of queries does not do that.  Instead,
>  > it will follow the default answer of a query.  Such a default answer
>  > makes sense when trying to guide the user in a choice, but when
>  > "set confirm off" we should really let the command execute.
>
> The behaviour is as I would expect from the documentation.
>
>  > As an example, setting pending breakpoints has a default answer of 'n'.
>  > What that means (unless I'm wrong) is that with "set confirm off",
>  > pending breakpoints will NOT be set.
>  >
>  > The patch below changes defaulted_query() to always answer "yes" if
>  > 'confirm' is off.
>
> I would find this behaviour confusing.  In any case, the "set confirm off"
> command is for interactive use, not front ends.
>
> Here's a revised patch for my original request.  It doesn't help with issues
> relating to GDB/MI but just uses the "server prefix" instead of a special
> option.  I have used this trick previously (2007-07-10) to avoid setting the
> convenience variable $_ with breakpoints.  This seems appropriate as I think
> the "server" command was created many years ago by Tom Lord or Jim Kingdon for
> use with annotations.  I could add a suitable note to the documentation.
>
> --
> Nick                                           http://www.inet.net.nz/~nickrob
>
>
> 2009-07-21  Nick Roberts  <nickrob@snap.net.nz>
>
>        * record.c (cmd_record_stop): Don't ask for confirmation if
>        server prefix is used.
>
>
> *** record.c.~1.8.~     2009-07-21 17:58:01.000000000 +1200
> --- record.c    2009-07-21 18:02:30.000000000 +1200
> ***************
> *** 24,29 ****
> --- 24,30 ----
>  #include "event-top.h"
>  #include "exceptions.h"
>  #include "record.h"
> + #include "top.h"
>
>  #include <signal.h>
>
> *************** cmd_record_stop (char *args, int from_tt
> *** 1157,1164 ****
>  {
>    if (current_target.to_stratum == record_stratum)
>      {
> !       if (!record_list || !from_tty || query (_("Delete recorded log and "
> !                                               "stop recording?")))
>        unpush_target (&record_ops);
>      }
>    else
> --- 1158,1165 ----
>  {
>    if (current_target.to_stratum == record_stratum)
>      {
> !       if (!record_list || !from_tty || server_command
> !         || query (_("Delete recorded log and stop recording?")))
>        unpush_target (&record_ops);
>      }
>    else
>

About this patch.  I had said that I think add a special command for
it is better.

Thanks,
Hui