From: ts <decoux@...>
Date: 2003-07-23T22:33:59+09:00
Subject: Re: Embedding problem - SEGV

>>>>> "B" == Brian Candler <B.Candler@pobox.com> writes:

B> Do I really have to write each section as a separate C function, and call it
B> under rb_protect?


 Something like this

struct tt {
   char *cmd, *arg;
};

static VALUE
process_line(struct tt *tts)
{
    VALUE obj = Qnil;

    if (!strcmp(tt->cmd, "loadLibrary"))
        rb_require(tt->arg);
    else if (!strcmp(tt->cmd, "loadObject")) {
         VALUE klass = rb_const_get(rb_cObject, rb_intern(tt->arg));
         obj = rb_funcall(klass, rb_intern("new"), 0);
   }
   /* ... etc */
   return obj;
}

int main(int argc, char **argv) 
{
    struct tt tts;
    int status;
    VALUE result;

    ruby_init();
    ruby_init_loadpath();
    tt.cmd = argv[1];
    tt.arg = argv[2];
    result = rb_protect(process_line, &tts, &status);
    if (status) {
        /* display an error message */
    }
    else {
        /* do what you want with result */
    }
    return 0;
}

 The idea is to initialize ruby, then make all call to ruby functions in
 one (or more) function protected by rb_protect()


Guy Decoux