Thanks for your quick comment Mr. Ripley. I'm a newbie in R so excuse me for
not knowing the obvious. Could you elaborate on what code I should look at,
and what documentation I should go to?
This is my C++ code on calling embedded R (on redhat enterprise linux 4):
char *localArgs[] = { "R", "--silent" }; // tried --slave, -f, --vanilla
too
Rf_initEmbeddedR(sizeof(localArgs)/sizeof(localArgs[0]), localArgs);
PROTECT(load = lang2(install("source"), mkString(file.c_str()))); // file
contains R code
R_tryEval(load, R_GlobalEnv, &errorOccurred);
PROTECT(call = lang2(install(entryPoint.c_str()), input)); // entry
point is an R function defined in "file" above
PROTECT(output = R_tryEval(call, R_GlobalEnv, &errorOccurred));
UNPROTECT(3);
What should I do in C++ to make R non-interactive?
Thanks,
Wayne
-----Original Message-----
From: Prof Brian Ripley [mailto:rip...@stats.ox.ac.uk]
Sent: Tuesday, March 08, 2011 9:51 AM
To: Zhang, Wayne: IT (NYK)
Cc: r-devel@r-project.org
Subject: Re: [Rd] How to disable R's crash prompt
On Tue, 8 Mar 2011, wayne.zh...@barclayscapital.com wrote:
> Dear R devel,
>
> I have a C++ app that calls into embedded R to perform some analytic
> calculations. When my app encounters a segmentation fault, R always
> prints the following crash prompt and asks me to enter an action:
>
>
> *** caught segfault ***
> address 0x8, cause 'memory not mapped'
>
> Possible actions:
> 1: abort (with core dump, if enabled)
> 2: normal R exit
> 3: exit R without saving workspace
> 4: exit R saving workspace
>
>
>
> The problem is my app will be run in non-interactive mode, so there
> is no way for me to enter the action. Is there a way to disable the
R does not do that in 'non-interactive mode'. Take a look at the
code: that section is conditional on R_Interactive.
> crash prompt and have R simply crash the whole app? I have tried
> using "-file=/dev/null", "-slave", "-vanilla", and pretty much all
> other start options, to no avail.
They do not control if R is interactive: the front-end (yours, I
presume since you mention embedding but do not otherwise give any
details) does.
> Thanks in advance for your help,
>
> Wayne
--
Brian D. Ripley, rip...@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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