Hi Simon,
   thanks for your information, I have tried to set "R_CStackLimit = (uintptr_t)-1" after Rf_initialize_R,
   but i don't know which Rf_initialize_R, because i found several in my source code.  I had tried to set it 
   in some place, but it still don't work. Strangely, i add "R_CStackLimit = (uintptr_t)-1" to my own application 
   after init_R(argc, argv), it print new error info. 
  
   The detail as follow:   
   I firstly tried to add "R_CStackLimit = (uintptr_t)-1" to /R-2.9.0/src/main/Rmain.c ,
   and then recompile R using --enable-R-shlib, but it did't work.

   Then i added it to "/R-2.9.0/src/unix/Rembedded.c", then compile it as above, it also didn't work.

   I finally added it to my own application code after "init_R(argc, argv)"(you can look at my previous mail),
   it didn't give me the error information, but this time it inform me the error info:
   Error: could not find function "print"
   (I use PROTECT(tmp = mkString("{print(lh)}")) in my application's code)   
 
  so  Simon, can you give me more advice, or you can give me a simple code using R in thread. 
  
  Realy appreciate you help!


?***********************
?Bin?Dong
?BUAA,?Beijing?PR?China
?goon83@126.com
?***********************


   

在2009-05-19?18:23:08，"Simon?Urbanek"?<simon.urbanek@r-project.org>?写道：
>
>On?May?19,?2009,?at?4:30?AM,?goon83?wrote:
>
>>?Hi?everyone!
>>???I?meet?one?problem?when?embedding?R?in?C?code,?when?I?run?the?the??
>>?R?code?in?one?child?thread?,
>>???it?always?print?error?info:
>>????Error:?C?stack?usage?is?too?close?to?the?limit
>>
>>???I?also?try?to?set?R_CStackLimit?=?(uintptr_t)-1?to?disable?the?C??
>>?stack?check?as?the?R-exts?doc?say,
>>???but?it?still?does?not?work,?the?error?info?still?exist.
>>
>
>That?is?the?way?to?do?it?(and?other?project?use?it?successfully)?-?the??
>fact?that?it?doesn't?work?means?that?you?probably?do?it?at?the?wrong??
>place?(you?must?set?it?*after*?Rf_initialize_R).
>
>Cheers,
>Simon
>
>
>>???Besides?it?is?interesting?that?if?i?put?the?R?code?in?the?main??
>>?thread(don't?create?any?thread),?it?work,??and?the?E-exts?doc?say??
>>?that??"Embedded?R?is?designed?to?be?run?in?the?main?thread,?and?all??
>>?the?testing?is?done?in?that?context."?so?i?wonder?is?it?that??
>>?Embedded?R?can?not?run?in?the?child?thread??
>>
>>???so,?can?anybody?give?some?help?or?suggestion?about?this?problem,
>>???any?response?will?be?appreciated,?tks?in?advance.
>>
>>?***********************
>>?Bin?Dong
>>?BUAA,?Beijing?PR?China
>>?goon83@126.com
>>?***********************
>>
>>???ps:?my?code,?system?info?and?error?information?list?behand
>>
>>???-----------------------------
>>???1,?my?example?code?lists?here:
>>???-----------------------------
>>???#include?....
>>
>>???void?*ts_thread(){
>>?????????SEXP?e,?tmp;
>>?????????int??hadError;
>>?????????int?argc?=?0;
>>?????????char?*argv[1];
>>?????????ParseStatus?status;
>>
>>?????????init_R(argc,?argv);
>>
>>????????PROTECT(tmp?=?mkString("{print(lh)}"));
>>????????PROTECT(e?=?R_ParseVector(tmp,?1,?&status,?R_NilValue));
>>????????PrintValue(e);
>>????????R_tryEval(VECTOR_ELT(e,0),?R_GlobalEnv,?&hadError);
>>
>>???????UNPROTECT(2);
>>???????end_R();
>>?}
>>
>>?int?main(int?argc,?char?*argv[]){
>>????pthread_t?th1;
>>????int?iret1;
>>
>>????iret1?=?pthread_create(&th1,?NULL,?ts_thread,NULL);
>>????pthread_join(th1,?NULL);
>>????printf("Thread?1?return:%d\n",?iret1);
>>
>>????return?0;
>>?}
>>?-----------------------------------
>>?2,?My?os?and?compiler?is:
>>?-----------------------------------
>>?Linux?debian?2.6.26-1-686?#1?SMP?Sat?Jan?10?18:29:31?UTC?2009?i686??
>>?GNU/Linux
>>?gcc?version?4.3.2?(Debian?4.3.2-1.1)
>>
>>?-----------------------------------
>>?3,?the?error?info:
>>?------------------------------------
>>?goon@debian:~/library/R-source/R-2.9.0/tests/Embedding$?./Rar
>>?Error:?C?stack?usage?is?too?close?to?the?limit
>>?Error:?C?stack?usage?is?too?close?to?the?limit
>>
>>?R?version?2.7.1?(2008-06-23)
>>?Copyright?(C)?2008?The?R?Foundation?for?Statistical?Computing
>>?ISBN?3-900051-07-0
>>
>>?R?is?free?software?and?comes?with?ABSOLUTELY?NO?WARRANTY.
>>?You?are?welcome?to?redistribute?it?under?certain?conditions.
>>?Type?'license()'?or?'licence()'?for?distribution?details.
>>
>>?R?is?a?collaborative?project?with?many?contributors.
>>?Type?'contributors()'?for?more?information?and
>>?'citation()'?on?how?to?cite?R?or?R?packages?in?publications.
>>
>>?Type?'demo()'?for?some?demos,?'help()'?for?on-line?help,?or
>>?'help.start()'?for?an?HTML?browser?interface?to?help.
>>?Type?'q()'?to?quit?R.
>>
>>?expression({
>>????print(lh)
>>?})
>>?Error:?C?stack?usage?is?too?close?to?the?limit
>>?Thread?1?return:0
>>?------------------------------------------
>>
>>
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>>
>>?______________________________________________
>>?R-devel@r-project.org?mailing?list
>>?https://stat.ethz.ch/mailman/listinfo/r-devel
>>
>>
>

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