From: Michael Neumann <mneumann@...>
Date: 2008-01-09T01:53:26+09:00
Subject: Re: Embedding 1.9

Dave Thomas wrote:
> Moved over from ruby-talk...
> 
> 
> On Jan 7, 2008, at 9:36 PM, Yukihiro Matsumoto wrote:
> 
>> You can load Ruby programs with rb_load().
> 
> In 1.9, though, is that enough, or do we then have to call 
> rb_iseq_new/eval to have the file's contents actually run (when I try 
> just rb_load_file, it gets compiled but the code in the file doesn't 
> appear to be actually executed).
> 
>  From an embedding point of view, this is slightly problematic, as 
> rb_load_file returns VOID *, so it's hard to pass the parse tree on.
> 
> Should I perhaps be calling rb_load(rb_str_new2("file.rb", 0)?

Dave,

I had to do the following to get it working:


/*
  * Forward declarations for Ruby
  */
void *
rb_compile_cstr(const char *f, const char *s, int len, int line);

int main()
{
   RUBY_INIT_STACK;
   ruby_init();
   ruby_init_loadpath();
   ruby_script("...");
   ruby_run_node(rb_compile_cstr("yourfile",
         (const char*)"p :hello",
         /* strlen */ 8, /* line no */ 1));

}


I also had to change some things in YAML/syck when I tried to link 
everything statically... but then no .so files work anymore.

Regards,

   Michael