[Rd] Using R_MakeExternalPtr

[Simon Urbanek]

On Jul 25, 2007, at 12:53 PM, Jonathan Zhou wrote:

> [snip]
> extern "C"
> {
>   void soamSubmit	(SEXP jobID,		//job ID

^^^ - this will definitely crash. All .Call functions must return  
SEXP, even if it is just R_NilValue;

Cheers,
Simon





> 			 SEXP sesCon,		//session pointer
> 			 SEXP caller,			//objects
> 			 SEXP pack)			//packages
> {
> 	char* savelist = CHAR(STRING_ELT(caller, 0));
> 	string strTemp = "";
> 	int job = INTEGER(jobID)[0];
>
> 	void* temp = R_ExternalPtrAddr(sesCon);
>         Session* sesPtr = reinterpret_cast<Session*>(temp);
>
>     // Create a message
> 	MyMessage inMsg(job, /*pack,*/ savelist);
>
>     // Send it
>     TaskInputHandlePtr input = sesPtr->sendTaskInput(&inMsg);
> }
> }
> -- 
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> R_MakeExternalPtr-tf4142904.html#a11786494
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>
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