File: Rshutdown.c

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#include "embeddedRCall.h"

int callLength(SEXP obj);
int R_embeddedShutdown(Rboolean ask);

main(int argc, char *argv[])
{
    SEXP objs[100];
    int i;
    Rf_initEmbeddedR(sizeof(argv)/sizeof(argv[0]), argv);

    for(i = 0; i < 100; i++) {
	objs[i] = allocVector(VECSXP, 1000);
	R_PreserveObject(objs[i]);
	callLength(objs[i]);
    }

    R_embeddedShutdown(FALSE);
}

int
callLength(SEXP obj)
{
    SEXP e, val;
    int errorOccurred;
    int len = -1;

    PROTECT(e = lang2(install("length"), obj));
    val = R_tryEval(e, R_GlobalEnv, &errorOccurred);
    len = INTEGER(val)[0];
    UNPROTECT(1);
   
    return(len);
}


int 
R_embeddedShutdown(Rboolean ask)
{

    R_dot_Last();
    R_RunExitFinalizers();
    CleanEd();
    KillAllDevices();
    num_old_gens_to_collect = NUM_OLD_GENERATIONS;
    R_gc();
    return(1);
}