RE: -var-update @

["Marc Khouzam" <marc.khouzam@ericsson.com>]

> Incidentally, it seems to be that a really smart frontend might be updating only
> those variable objects that a visible on screen. To support this case efficiently,
> we'd better support
> 
> 	-var-update var1 var2 var3 ...
> 
> syntax. I'm not proposing such a syntax right now -- we'd need to actually play
> with such a smart frontend.

DSF only updates varObj that are visible on screen.
So currently, it always uses -var-update with a single varObj name (never use *).

If I understand correctly,
> 	-var-update var1 var2 var3 ...
would allow the frontend to update multiple variable objects with a single command.
With the goal of reducing the number of MI commands.  Any other benefits?

In the case of DSF, we wouldn't be able to use such a command though.
The reason is that the views which show the variables are de-coupled from the
variable object manager; and those views request the value of each variable
individually, so the variable manager, which sends -var-update only gets
a single varObj request at a time.

Not to say that
> 	-var-update var1 var2 var3 ...
would not be useful to other "really smart frontends" :-)

And, who knows, it may not be too hard for the DSF views to send batch requests
containing all the visible variable objects, someday.

Marc