Re: [Rd] calling handlers within R_tryEval

From: Romain Francois <>
Date: Tue, 16 Jun 2009 20:16:09 +0200


If there is something I can do to push up this one, let me know.

Romain wrote:
> Not at present. It would be nice to have at least a mechanism for C
> level exiting handlers (which is what the cend ones are intended to be)
> but it hasn't risen high enough on my to do list yet to get done.
> luke
> On Tue, 16 Jun 2009, Romain Francois wrote:
>> Hello,
>> When using R_tryEval (from JRI in my case), is there a way to setup
>> error recovery strategy and more generally calling handlers.
>> From my reading of context.c, R_tryEval calls R_ToplevelExec which
>> creates a context like this:
>> begincontext(&thiscontext, CTXT_TOPLEVEL, R_NilValue, R_GlobalEnv,
>> R_BaseEnv, R_NilValue, R_NilValue);
>> so I guess what I am trying to do is add "cend" and/or "handlerstack"
>> to this context. Is this possible ? Are there examples of packages
>> doing this ?
>> Romain

Romain Francois
Independent R Consultant
+33(0) 6 28 91 30 30

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