[Rcppoctave-user] Apple Blues

[Dominick Samperi]

Ranaud,

RcppOctave can now be installed and used under Mac OS X Mavericks
like this:

$ R CMD INSTALL RcppOctave --no-test-load
$ R
> library(RcppOctave)
> .O$version()
...
> .Call('octave_end')
> q("no")

The --no-test-load option is used because the embedded Octave session
is not terminated properly at test time (during installation), and the
embedded Octave session needs to be explicitly terminated before
leaving the R session using the 'octave_end' entry point.

Some cosmetic changes will need to be made so that everything
happens automatically before a CRAN submission.

Dominick


On Fri, Nov 1, 2013 at 4:11 AM, Renaud Gaujoux <
renaud at mancala.cbio.uct.ac.za> wrote:

> What type of R installation did you test this procedure with?
> Ideally this would work with the plain CRAN binary, modulo adapting
> ~/.R/Makevars.
>
>
> As you probably know, the last line of embedded.cc (attached)
>> is very important. Without it there is still a memory error!
>>
>>
>>
> I checked Octave source and clean_up_and_exit is a simple wrapper to
> do_octave_atexit, which I call directly to skip the call to exit, which
> would otherwise terminate the R session as well:
>
> [from
> http://hg.savannah.gnu.org/hgweb/octave/file/eff3d78367f0/src/toplev.cc#l667
> ]
>
> void clean_up_and_exit (int retval)
> {
>   do_octave_atexit ();
>   if (octave_exit)
>     (*octave_exit) (retval == EOF ? 0 : retval);
> }
>
> Note that I actually don't know how to effectively terminate the Octave
> session. Don't know if this even possible since it currently runs in the
> same thread as R (that's at least my understanding). So even after cleaning
> up with do_octave_atexit(), we can still send commands to Octave which
> responds fine, except if errors occurs and then a segfault sometimes come
> up suggesting some thing is in a bad state. Anyway, this is not really a
> big issue.
>
> library(RcppOctave)
> o_runif(1)
> octave_end()
> o_runif(1)
>
>
>
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