On Mon, Oct 26, 2009 at 8:09 AM, Zachary Carter <
zack.carter@...> wrote:
> Is it possible to spawn another JRuby interpreter from within JRuby?
> I'm looking to use this as an alternative to forking, and to avoid
> unavoidable race conditions involved with using threads. I'm sure you
> can create multiple JRuby runtimes from Java, but I couldn't find much
> documentation on that either.
Sure, you should be able to do it. There are several ways:
- Default behavior when you do `system("script.rb")` is to launch a
new JRuby runtime in the same JVM.
- You can use normal Java integration to call into javax.script (1.3
and earlier) or the new org.jruby.embed API (coming in 1.4).
- There is also early work on a MVM (multiple virtual machine) API
that would probably match your needs best. The API includes the
ability to send messages back and forth between sub-vms. Example code
here:
http://github.com/jruby/jruby/blob/master/samples/mvm.rb (Note,
I tried the code on trunk and it doesn't appear to be working).
/Nick
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