MI3 and async notifications
Jan Vrany <[email protected]>
| Newsgroups | gmane.comp.gdb.devel |
|---|---|
| Message-ID | <[email protected]> |
Hello,
as an user og GDB/MI (and frontent developer), I'd like to
open a discussion about one aspect of MI that I'd like to change
in MI3 before it is released into the wild.
Currently, quite a few commands suppress async notifications when
a command is issued through MI. For example, when a breakpoint is
added using -break-insert then =breakpoint-created is not emitted.
At least in my case, this behavior complicates client design because
now the client has to care for new breakpoints on multiple places:
(i) listen to breakpoint created events to handle cases where breakpoint
is added via CLI.
(ii) do similar processing whenever MI returns ^done for previously
issued -break-insert command.
This leads to a complex logic, especially in cases where frontend has
some scripting support (so execution of MI commands is not completely
under frontend developer's control).
Emitting notifications unconditionally would simplify things a lot
- again at least in my case.
Therefore I'd like to propose a change for MI3 to always send notifications.
If such a change would make things complicated for other frontends
(Eclipse CDT / Emacs come to mind), I propose new
-gdb-set mi-always-notify 1
-gdb-set mi-always-notify 0
setting to control the behavior so frontends may choose.
I'm happy to submit a patch. Are there any other frontend developers?
If so, would it be OK to always notify in MI3 or do you prefer to have
an option? Any other comments?
Thanks! Jan