[ESS] distinguish busy from non-busy waiting

[Vitalie Spinu]

Your definition means busy means that CPU resources are used. I think this is
doable (on linux,mac at least). You can monitor PID of R's process for CPU usage
periodically.

The current implementation of busy/not-busy relies on prompts and it's quite
flawed indeed.

  Vitalie

>> On Thu, Nov 26 2015 11:55, Andreas Leha wrote:

> Hi all,

> Is there a way to tell from ess' GUI whether R is busy doing something
> or whether R is waiting for the completion of the user input?

> Consider this example file

> Sys.sleep(
>   10)

> Sys.sleep(
>   10

> If I do `ess-eval-paragraph-and-step' on one after the other I get

> ,----
> | > 
> | + 
> `----

> from the first and

> ,----
> | > 
> | + + 
> `----

> from the second.

> In both cases there is a spinning wheel in the mode line.

> So, the number of '+' signs seems to be the only visible difference.
> Counting the plus sings is not an option for real examples, of course.

> Hence my question: Is there a way to immediately tell from the interface
> whether the command is complete?

> I quite often wait in vain due to a missing ')' and only a glance at the
> output of 'top' or similar will help here.

> Thanks,
> Andreas

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